MB3793-37A Power Voltage Monitoring IC with Watchdog Timer Datasheet The MB3793 is an integrated circuit to monitor power voltage; it incorporates a watchdog timer. A reset signal is output when the power is cut or falls abruptly. When the power recovers normally after resetting, a power-on reset signal is output to microprocessor units (MPUs). An internal watchdog timer with two inputs for system operation diagnosis can provide a fall-safe function for various application systems. The model number is MB3793-37A corresponding to the detected voltage. The model number and package code are as shown below. Model No. Marking code Detection voltage MB3793-37A 3793AF 3.7 V Features Precise detection of power voltage fall: 2.5% Detection voltage with hysteresis Low power dispersion: ICC = 30 A (reference) Internal dual-input watchdog timer Watchdog-timer halt function (by inhibition pin) Independently-set wacthdog and reset times Two types of packages (SOP-8pin : 2 types) Application Arcade Amusement etc Cypress Semiconductor Corporation Document Number: 002-08517 Rev. *A * 198 Champion Court * San Jose, CA 95134-1709 * 408-943-2600 Revised March 15, 2016 MB3793-37A Contents Pin Assignment ................................................................ 3 Pin Description ................................................................. 3 Block Diagram .................................................................. 4 Block Description ............................................................. 5 Absolute Maximum Ratings ............................................ 6 Recommended Operating Conditions ............................ 6 Electrical Characteristics ................................................. 7 DC Characteristics .............................................................. 7 AC Characteristics .............................................................. 8 Diagram ............................................................................. 9 Basic operation (Positive clock pulse) ............................... 9 Basic operation (Negative clock pulse) ........................... 10 Single-clock input monitoring (Positive clock pulse) ........................................................ 11 Inhibition operation (Positive clock pulse) ........................ 12 Clock pulse input supplementation (Positive clock pulse) ........................................................ 13 Document Number: 002-08517 Rev. *A Operation Sequence ....................................................... 13 Typical Characteristics .................................................. 16 Application Example ...................................................... 20 Supply voltage monitor and watchdog timer (1-clock monitor) ............................................................ 20 Supply voltage monitor and watchdog timer stop ...... 21 Typical Application ......................................................... 22 Notes On Use .................................................................. 23 Ordering Information ...................................................... 23 RoHS Compliance Information of Lead (Pb) Free version ................................................... 23 Marking Format (Lead Free version) ........................... 24 Labeling Sample (Lead free version) ........................... 25 MB3793-37APF-E1, MB3793-37APNF-E1 Recommended Conditions Of Moisture Sensitivity Level ............................................................. 26 Package Dimensions ...................................................... 28 Major Changes ................................................................ 30 Page 2 of 29 MB3793-37A 1. Pin Assignment (Top view) RESET 1 8 CK1 CTW 2 7 CK2 CTP 3 6 INH GND 4 5 VCC (FPT-8P-M01) (FPT-8P-M02) 2. Pin Description Pin no. Symbol 1 RESET 2 Descriptions Pin no. Symbol Outputs reset pin 5 VCC Power supply pin CTW Watchdog timer monitor time setting pin 6 INH Inhibit pin 3 CTP Power-on reset hold time setting pin 7 CK2 Inputs clock 2 pin 4 GND Ground pin 8 CK1 Inputs clock 1 pin Document Number: 002-08517 Rev. *A Descriptions Page 3 of 29 MB3793-37A 3. Block Diagram To VCC of all blocks . 3 A I1 = . 5 VCC I2 .=. 30 A CTP 3 . R1 = . 494 k Logic circuit RESET 1 Output circuit INH 6 Comp.S CTW 2 Watchdog timer Reference voltage generator - VS + Pulse generator 1 . 1.24 V VREF = . CK1 8 R2 .=. 240 k Pulse generator 2 CK2 7 Document Number: 002-08517 Rev. *A To GND of all blocks 4 GND Page 4 of 29 MB3793-37A 4. Block Description 1. Comp. S Comp. S is a comparator with hysteresis to compare the reference voltage with a voltage (VS) that is the result of dividing the power voltage (VCC) by resistors 1 and 2. When VS falls below 1.24 V, a reset signal is output. This function enables the MB3793 to detect an abnomality within 1 s when the power is cut or falls abruptly. 2. Output circuit The output circuit contains a RESET output control comparator that compares the voltage at the CTP pin to the threshold voltage to release the RESET output if the CTP pin voltage exceeds the threshold value. Since the reset (RESET) output buffer has CMOS organization, no pull-up resistor is needed. 3. Pulse generator The pulse generator generates pulses when the voltage at the CK1 and CK2 clock pins changes to High from Low level (positive-edge trigger) and exceeds the threshold voltage; it sends the clock signal to the watchdog timer. 4. Watchdog timer The watchdog timer can monitor two clock pulses. Short-circuit the CK1 and CK2 clock pins to monitor a single clock pulse. 5. Inhibition pin The inhibition (INH) pin forces the watchdog timer on/off. When this pin is High level, the watchdog timer is stopped. 6. Logic circuit The logic circuit contains flip-flops. Flip-flop RSFF1 controls the charging and discharging of the power-on reset hold time setting capacitor (CTP). Flip-flop RSFF2 turns on/off the circuit that accelerates charging of the power-on reset hold time setting capacitor (CTP) at a reset. The RSFF2 operates only at a reset; it does not operate at a power-on reset when the power is turned on. Document Number: 002-08517 Rev. *A Page 5 of 29 MB3793-37A 5. Absolute Maximum Ratings Parameter Symbol Conditions VCC -- CK1 VCK1 -- CK2 VCK2 -- INH IINH -- RESET IOL IOH Power supply voltage* Input voltage* Reset output current Allowable loss Storage temperature Rating Unit Min Max -0.3 +7 V -0.3 +7 V -- -10 +10 mA PD Ta +85C -- 200 mW Tstg -- -55 +125 C *: The power supply voltage is based on the ground voltage (0 V). WARNING: 1. Semiconductor devices may be permanently damaged by application of stress (including, without limitation, voltage, current or temperature) in excess of absolute maximum ratings.Do not exceed any of these ratings. 6. Recommended Operating Conditions Parameter Symbol Conditions Power supply voltage VCC Reset (RESET) output current Value Unit Min Typ Max -- 1.2 -- 6.0 V IOL IOH -- -5 -- +5 mA Power-on reset hold time setting capacity CTP -- 0.001 -- 10 F Watchdog-timer monitoring time setting capacity* CTW -- 0.001 -- 1 F Ta -- -40 -- +85 C Operating ambient temperature *: The watchdog timer monitor time range depends on the rating of the setting capacitor. WARNING: 1. The recommended operating conditions are required in order to ensure the normal operation of the semiconductor device. All of the device's electrical characteristics are warranted when the device is operated under these conditions. 2. Any use of semiconductor devices will be under their recommended operating condition. 3. Operation under any conditions other than these conditions may adversely affect reliability of device and could result in device failure. 4. No warranty is made with respect to any use, operating conditions or combinations not represented on this data sheet. If you are considering application under any conditions other than listed herein, please contact sales representatives beforehand. Document Number: 002-08517 Rev. *A Page 6 of 29 MB3793-37A 7. Electrical Characteristics 7.1 DC Characteristics (VCC = +5 V, Ta = +25C) Parameter Power supply current Symbol ICC1 Conditions After exit from reset VSL VCC falling VSH VCC rising Detection voltage Detection voltage hysteresis difference Clock-input threshold voltage Clock-input hysteresis Inhibition-input voltage Input current (CK1, CK2, INH) Reset output voltage Reset-output minimum power voltage Ta = +25C Ta = -40C to +85C Ta = +25C Ta = -40C to +85C Value Min Typ Max -- 30 50 Unit A 3.60 3.70 3.80 (3.55)* 3.70 (3.85)* 3.69 3.79 3.89 (3.64)* 3.79 (3.94)* V V VSHYS VSH - VSL 40 85 130 mV VCIH CK rising (1.4)* 1.9 2.5 V VCIL CK falling 0.8 1.3 (1.8)* V V VCHTS -- (0.4)* 0.6 (0.8)* VIIH -- 3.5 -- -- VIIL -- -- 0 0.8 V IIH VCK = 5 V -- 0 1.0 A IIL VCK = 0 V -1.0 0 -- A VOH IRESET = -5 mA 4.5 4.75 -- V VOL IRESET = +5 mA -- 0.12 0.4 V VCCL IRESET = +50 A -- 0.8 1.2 V *: The values enclosed in parentheses ( ) are setting assurance values. Document Number: 002-08517 Rev. *A Page 7 of 29 MB3793-37A 7.2 AC Characteristics (VCC = +5 V, Ta = +25C) Parameter Symbol Conditions Value Min Typ Max Unit Power-on reset hold time tPR CTP = 0.1 F 80 130 180 ms VCC input pulse width tPI CTP = 0.1 F (110)*2 -- -- s VCC delay time tPD CTP = 0.1 F -- 20 (100)*2 s Watchdog timer reset time tWD CTW = 0.01 F, CTP = 0.1 F 7.5 15 22.5 ms Watchdog timer reset time tWR CTP = 0.1 F 5 10 15 ms Clock input pulse width tCKW -- 500 -- -- ns Clock input pulse cycle tCKT -- 20 -- -- s Rising tr*1 CL = 50 pF -- -- 500 ns Falling tf*2 CL = 50 pF -- -- 500 ns Reset (RESET) output transition time*1 *1:The voltage range is 10% to 90% at testing the reset output transition time. *2:The values enclosed in parentheses ( ) are setting assurance values. Document Number: 002-08517 Rev. *A Page 8 of 29 MB3793-37A 8. Diagram 8.1 Basic operation (Positive clock pulse) VSH VSL VCC tCKW CK1 tCKT CK2 INH Vth CTP VH CTW VL RESET tWD tPR (1) (2) Document Number: 002-08517 Rev. *A (3) (4)(5) (5) tPR tWR (6) (7) (8) (9) (10) (11) (12) (13) Page 9 of 29 MB3793-37A 8.2 Basic operation (Negative clock pulse) VSH VSL VCC tCKW CK1 tCKT CK2 INH Vth CTP VH CTW VL RESET tPR (1) (2) tWD (3) (4)(5) (5) Document Number: 002-08517 Rev. *A tPR tWR (6) (7) (8) (9) (10) (11) (12) (13) Page 10 of 29 MB3793-37A 8.3 Single-clock input monitoring (Positive clock pulse) tCKW CK1 CK2 tCKT Vth CTP VH CTW VL RESET tWD tWR Note: The MB3793 can monitor only one clock. The MB3793 checks the clock signal at every other input pulse. Therefore, set watchdog timer monitor time tWD to the time that allows the MB3793 to monitor the period twice as long as the input clock pulse. Document Number: 002-08517 Rev. *A Page 11 of 29 MB3793-37A 8.4 Inhibition operation (Positive clock pulse) VSH VSL VCC tCKW CK1 CK2 INH Vth CTP VH CTW VL RESET tPR (1) (2) Document Number: 002-08517 Rev. *A tWD (3) (4)(5) (5) tPR tWR (6) (7) (11) (8) (9) (10) (12) (13) Page 12 of 29 MB3793-37A 8.5 Clock pulse input supplementation (Positive clock pulse) *1 CK1 *2 CK2 VH CTW VL Note: The MB3793 watchdog timer monitors Clock1 (CK1) and Clock2 (CK2) pulses alternately. When a CK2 pulse is detected after detecting a CK1 pulse, the monitoring time setting capacity (CTW) switches to charging from discharging. When two consecutive pulses occur on one side of this alternation before switching, the second pulse is ignored. In the above figure, pulse *1 and *2 are ignored. 9. Operation Sequence 1. Positive clock pulse input See "1. Basic operation (positive clock pulse)" under "Diagram" 2. Negative clock pulse input See "2. Basic operation (negative clock pulse)" under "Diagram" The MB3793 operates in the same way whether it inputs positive or negative pulses. 3. Clock monitoring To use the MB3793 while monitoring only one clock, connect clock pins CK1 and CK2. Although the MB3793 operates basically in the same way as when monitoring two clocks, it monitors the clock signal at every other input pulse. See "3. Single-clock input monitoring (positive clock pulse)" under "Diagram" Document Number: 002-08517 Rev. *A Page 13 of 29 MB3793-37A 4. Description of Operations The numbers given to the following items correspond to numbers (1) to (13) used in "Diagram" (1) The MB3793 outputs a reset signal when the supply voltage (VCC) reaches about 0.8 V (VCCL) (2) If VCC reaches or exceeds the rise-time detected voltage VSH, the MB3793 starts charging the power-on reset hold time setting capacitor CTP. At this time, the output remains in a reset state. The VSH value is about 3.79 V. (3) When CTP has been charged for a certain period of time tPR (until the CTP pin voltage exceeds the threshold voltage (Vth) after the start of charging), the MB3793 cancels the reset (setting the RESET pin to "H" level from "L" level). The Vth value is about 3.6 V with VCC = 5.0 V The power-on reset hold timer monitor time tPR is set with the following equation: . tPR (ms) =. A CTP (F) The value of A is about 1300 with VCC = 5.0 V. The MB3793 also starts charging the watchdog timer monitor time setting capacitor (CTW). (4) When the voltage at the watchdog timer monitor time setting pin CTW reaches the "H" level threshold voltage VH, the CTW switches from the charge state to the discharge state. The value of VH is always about 1.24 V regardless of the detected voltage. (5) If the CK2 pin inputs a clock pulse (positive edge trigger) when the CTW is being discharged in the CK1-CK2 order or simultaneously, the CTW switches from the discharge state to the charge state. The MB3793 repeats operations (4) and (5) as long as the CK1/CK2 pin inputs clock pulses with the system logic circuit operating normally. (6) If no clock pulse is fed to the CK1 or CK2 pin within the watchdog timer monitor time tWD due to some problem with the system logic circuit, the CTW pin is set to the "L" level threshold voltage VL or less and the MB3793 outputs a reset signal (setting the RESET pin to "L" level from "H" level). The value of VL is always about 0.24 V regardless of the detected voltage. The watchdog timer monitor time tWD is set with the following equation: . tWD (ms) =. B CTW (F) The value of B is hardly affected by the supply voltage; it is about 1500 with VCC = 5.0 V. (7) When a certain period of time tWR has passed (until the CTP pin voltage reaches or exceeds Vth again after recharging the CTP), the MB3793 cancels the reset signal and starts operating the watchdog timer. The watchdog timer monitor reset time tWR is set with the following equation: . tWR (ms) =. D x CTP (F) The value of D is about 100 with VCC = 5.0 V. The MB3793 repeats operations (4) and (5) as long as the CK1/CK2 pin inputs clock pulses. If no clock pulse is input, the MB3793 repeats operations (6) and (7). (8) If VCC is lowered to the fall-time detected voltage (VSL) or less, the CTP pin voltage decreases and the MB3793 outputs a reset signal (setting the RESET pin to "L" level from "H" level). The value of VSL is 3.7 V (9) When VCC reaches or exceeds VSH again, the MB3793 starts charging the CTP. (10) When the CTP pin voltage reaches or exceeds Vth, the MB3793 cancels the reset and restarts operating the watchdog timer. It repeats operations (4) and (5) as long as the CK1/CK2 pin inputs clock pulses. (11) Making the inhibit pin active (setting the INH pin to "H" from "L") forces the watchdog timer to stop operation. This stops only the watchdog timer, leaving the MB3793 monitoring VCC (operations (8) to (10)). The watchdog timer remains inactive unless the inhibit input is canceled. (12) Canceling the inhibit input (setting the INH pin to "L" from "H") restarts the watchdog timer. (13) The reset signal is output when the power supply is turned off to set VCC to VSL or less. Document Number: 002-08517 Rev. *A Page 14 of 29 MB3793-37A 10. Typical Characteristics Detection voltage Operating ambient temperature Power supply current-Power supply voltage 40 4.0 Ta = -40C to +85C 35 Power supply current: ICC (A) 25 Watchdog timer monitoring (VINH = 0 V) 20 15 10 MB3793-37A VINH f = 1 kHz Duty = 10% VL = 0 V VH = VCC VCC Detection voltage: VSH and VSL (V) VSH (Ta = +25C) 30 3.9 Max Max 3.8 Typ 3.7 Min 3.6 VSL (Ta = +25C) CTP CTW 0.01 F 0.1 F (Ta = -40C to +85C) -40 -20 0 +20 +40 +60 +80 +100 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0 10 Power supply voltage: VCC (V) Operating ambient temperature: Ta (C) Reset output voltage-Reset output current (P-MOS side) Reset output voltage-Reset output current (N-MOS side) Ta = -40C 4.9 Ta = +25C 4.8 4.7 4.6 4.5 4.4 4.3 4.2 Ta VRESET RON IRESET -40C 98 mV 19.6 +25C 135 mV 27 +5 mA +85C 167 mV 33.4 500 Ta = +85C Ta VRESET RON IRESET -40C 4.800 V 40 +25C 4.750 V 50 -5 mA +85C 4.707 V 58.6 Reset output voltage: VRESET (mV) 5.0 Reset output voltage: VRESET (V) VSL Min 3.5 0 VSH Typ 400 Ta = +25C 300 Ta = +85C 200 100 Ta = -40C 4.1 4.0 0 -1 -2 -3 -4 -5 -6 -7 -8 -9 -10 Reset output current: IRESET (mA) Document Number: 002-08517 Rev. *A 0 0 1 2 3 4 5 6 7 8 9 10 Reset output current: IRESET (mA) Page 15 of 29 MB3793-37A Reset-on reset time Operating ambient temperature (when VCC rising) Reset output voltage Power supply voltage 260 7 Pull-up resistance: 100 k 240 220 5 Power-on reset time: tPR (ms) Reset output voltage: VRESET (V) 6 4 3 Ta = +85C 2 Ta = +25C 1 Ta = -40C 0 0 1 2 3 4 5 6 Ta = -40C to +85C 200 Ta = +25C 180 Max 160 140 120 Typ 100 80 Min 60 7 40 Power supply voltage: VCC (V) 20 0 -40 -20 0 +20 +40 +60 +80 +100 Operating ambient temperature: Ta (C) Watchdog timer reset time Operating ambient temperature (when monitoring) 26 26 24 24 Ta = -40C to +85C 20 18 16 Ta = +25C 14 Max 12 Typ 10 8 6 Min 4 2 0 Watchdog timer monitoring time: tWD (ms) 22 Watchdog timer reset time: tWR (ms) Watchdog timer monitoring time Operating ambient temperature Ta = -40C to +85C Max 22 20 Ta = +25C 18 16 Typ 14 12 10 8 Min 6 4 2 -40 -20 0 0 +20 +40 +60 +80+100 Operating ambient temperature: Ta (C) Document Number: 002-08517 Rev. *A -40 -20 0 +20 +40 +60 +80+100 Operating ambient temperature: Ta (C) Page 16 of 29 MB3793-37A Watchdog timer reset time CTP capacitance Watchdog timer reset time: tWR (ms) Power-on reset hold time: tPR (ms) Power-on reset hold time CTP capacitance 104 103 Ta = -40C 102 Ta = +25C 101 Ta = +85C 1 10 -1 10-4 10-3 10-2 10-1 101 1 102 Power-on reset hold time setting capacitance: CTP (F) 103 102 Ta = -40C 101 1 Ta = +25C Ta = +85C 10-1 10-2 10-4 10-3 10-2 10-1 1 101 102 Power-on reset hold time setting capacitance: CTP (F) Watchdog-timer monitoring time: tWD (ms) Watchdog-timer monitoring time CTW capacitance 103 Ta = -40C 102 Ta = +25C 101 1 Ta = +85C 10-1 10-5 10-4 10-3 10-2 10-1 1 101 Watchdog-timer monitoring time setting capacitance: CTW (F) Document Number: 002-08517 Rev. *A Page 17 of 29 MB3793-37A 11. Application Example 11.1 Supply voltage monitor and watchdog timer (1-clock monitor) VCC 5 VCC 2 CTW RESET 1 MB3793 RESET CTW* CTP* 3 CTP CK1 8 VCC Microprocessor CK 6 INH GND 4 CK2 7 GND GND *: Use a capacitor with less leakage current. The MB3793 monitors the clock (CK1/CK2) at every other input pulse. Document Number: 002-08517 Rev. *A Page 18 of 29 MB3793-37A 11.2 Supply voltage monitor and watchdog timer stop VCC 5 VCC 6 INH RESET 1 RESET MB3793 2 CTW VCC Microprocessor 1 CK1 8 CK HALT GND CTW* RESET VCC Microprocessor 2 CK HALT GND CTP* 3 CTP GND CK2 7 4 GND *: Use a capacitor with less leakage current. Document Number: 002-08517 Rev. *A Page 19 of 29 MB3793-37A 12. Typical Application VCC 5 VCC 2 CTW RESET 1 RESET MB3793 CTW* CTP* 3 CTP VCC Microprocessor 1 CK1 8 GND VCC Microprocessor 2 CK CK GND 6 INH RESET GND CK2 7 4 GND *: Use a capacitor with less leakage current. 1. Equation of time-setting capacitances (CTP and CTW) and set time . tPR [ms] =. A CTP [F] . tWD [ms] =. B CTW [F] + C CTP [F] CTP . about 10, tWD [ms] =. B CTW [F] CTW However, when . tWR [ms] =. D CTP [F] Values of A, B, C, and D A B C D Remark 1300 1500 0 100 VCC = 5.0 V 2. (Example) when CTP = 0.1 F and CTW = 0.01 F tPR time (ms) tWD tWR Document Number: 002-08517 Rev. *A . =. 130 . =. 15 . =. 10 Page 20 of 29 MB3793-37A 13. Notes On Use * Take account of common impedance when designing the earth line on a printed wiring board. * Take measures against static electricity. - For semiconductors, use antistatic or conductive containers. - When storing or carrying a printed circuit board after chip mounting, put it in a conductive bag or container. - The work table, tools and measuring instruments must be grounded. - The worker must put on a grounding device containing 250 k to 1 M resistors in series. * Do not apply a negative voltage - Applying a negative voltage of 0.3 V or less to an LSI may generate a parasitic transistor, resulting in malfunction. 14. Ordering Information Part number Package Remarks MB3793-37APF- 8-pin Plastic SOP (FPT-8P-M01) conventional version MB3793-37APNF- 8-pin Plastic SOP (FPT-8P-M02) conventional version MB3793-37APF-E1 8-pin Plastic SOP (FPT-8P-M01) Lead Free version MB3793-37APNF-E1 8-pin Plastic SOP (FPT-8P-M02) Lead Free version 15. RoHS Compliance Information of Lead (Pb) Free version The LSI products of Cypress with "E1" are compliant with RoHS Directive , and has observed the standard of lead, cadmium, mercury, Hexavalent chromium, polybrominated biphenyls (PBB) , and polybrominated diphenyl ethers (PBDE) . The product that conforms to this standard is added "E1" at the end of the part number. Document Number: 002-08517 Rev. *A Page 21 of 29 MB3793-37A 16. Marking Format (Lead Free version) Lead Free version 3793AF E1XXXX XXX INDEX Lead Free version Document Number: 002-08517 Rev. *A SOP-8 (FPT-8P-M01) 3793AF XXXX E1 XXX SOP-8 (FPT-8P-M02) Page 22 of 29 MB3793-37A 17. Labeling Sample (Lead free version) lead-free mark JEITA logo MB123456P - 789 - GE1 (3N) 1MB123456P-789-GE1 1000 (3N)2 1561190005 107210 JEDEC logo G Pb QC PASS PCS 1,000 MB123456P - 789 - GE1 2006/03/01 ASSEMBLED IN JAPAN MB123456P - 789 - GE1 1/1 0605 - Z01A 1000 1561190005 Lead Free version Document Number: 002-08517 Rev. *A Page 23 of 29 MB3793-37A 18. MB3793-37APF-E1, MB3793-37APNF-E1 Recommended Conditions Of Moisture Sensitivity Level Item Condition Mounting Method IR (infrared reflow) , Manual soldering (partial heating method) Mounting times 2 times Storage period Before opening Please use it within two years after Manufacture. From opening to the 2nd reflow Less than 8 days When the storage period after opening was exceeded Please processes within 8 days after baking (125C, 24h) Storage conditions 5C to 30C, 70RH or less (the lowest possible humidity) [Temperature Profile for Cypress Standard IR Reflow] (1) IR (infrared reflow) H rank : 260C Max. 260 C 255 C 170 C to 190 C (b) RT (a) (a) Temperature Increase gradient (b) Preliminary heating (c) Temperature Increase gradient (d) Actual heating (d') (e) Cooling (c) (d) (e) (d') : Average 1C/s to 4C/s : Temperature 170C to 190C, 60s to 180s : Average 1C/s to 4C/s : Temperature 260C MAX; 255C or more, 10s or less : Temperature 230C or more, 40s or less or Temperature 225C or more, 60s or less or Temperature 220C or more, 80s or less : Natural cooling or forced cooling Note : Temperature : the top of the package body Document Number: 002-08517 Rev. *A Page 24 of 29 MB3793-37A (2) Manual soldering (partial heating method) Conditions : Max Temperature 400C Times : 5 s max/pin Document Number: 002-08517 Rev. *A Page 25 of 29 MB3793-37A 19. Package Dimensions 8-pin plastic SOP (FPT-8P-M01) 8-pin plastic SOP (FPT-8P-M01) Lead pitch 1.27 mm Package width x package length 5.3 x 6.35 mm Lead shape Gullwing Sealing method Plastic mold Mounting height 2.25 mm MAX Weight 0.10 g Code (Reference) P-SOP8-5.3x6.35-1.27 Note 1) *1 : These dimensions include resin protrusion. Note 2) *2 : These dimensions do not include resin protrusion. Note 3) Pins width and pins thickness include plating thickness. Note 4) Pins width do not include tie bar cutting remainder. +0.25 +.010 +0.03 *1 6.35 -0.20 .250 -.008 0.17 -0.04 +.001 8 .007 -.002 5 *2 5.300.30 7.800.40 (.209.012) (.307.016) INDEX Details of "A" part +0.25 2.00 -0.15 +.010 .079 -.006 1 "A" 4 1.27(.050) 0.470.08 (.019.003) 0.13(.005) (Mounting height) 0.25(.010) 0~8 M 0.500.20 (.020.008) 0.600.15 (.024.006) +0.10 0.10 -0.05 +.004 .004 -.002 (Stand off) 0.10(.004) C 2002-2010 FUJITSU SEMICONDUCTOR LIMITED F08002S-c-6-9 Document Number: 002-08517 Rev. *A Dimensions in mm (inches). Note: The values in parentheses are reference values. Page 26 of 29 MB3793-37A 8-pin plastic SOP Lead pitch 1.27 mm Package width x package length 3.9 mm x 5.05 mm Lead shape Gullwing Sealing method Plastic mold Mounting height 1.75 mm MAX Weight 0.06 g (FPT-8P-M02) 8-pin plastic SOP (FPT-8P-M02) +0.25 Note 1) *1 : These dimensions include resin protrusion. Note 2) *2 : These dimensions do not include resin protrusion. Note 3) Pins width and pins thickness include plating thickness. Note 4) Pins width do not include tie bar cutting remainder. +.010 +0.03 *1 5.05 -0.20 .199 -.008 0.22 -0.07 +.001 .009 -.003 8 5 *2 3.900.30 6.000.20 (.154.012) (.236.008) Details of "A" part 45 1.550.20 (Mounting height) (.061.008) 0.25(.010) 0.40(.016) 1 "A" 4 1.27(.050) 0.440.08 (.017.003) 0.13(.005) 0~8 M 0.500.20 (.020.008) 0.600.15 (.024.006) 0.150.10 (.006.004) (Stand off) 0.10(.004) C 2002-2012 FUJITSU SEMICONDUCTOR LIMITED F08004S-c-5-10 Document Number: 002-08517 Rev. *A Dimensions in mm (inches). Note: The values in parentheses are reference values. Page 27 of 29 MB3793-37A 20. Major Changes Spansion Publication Number: MB3793-37A_DS04-27403 Page Section Change Results Revision 5.0 1 - Company name and layout design change Deleted "There is also a mask option that can detect voltages of 4.9 V to 2.4 V in 0.1-V steps." Description NOTE: Please see "Document History" about later revised information. Document History Document Title: MB3793-37A Power Voltage Monitoring IC with Watchdog Timer Datasheet Document Number: 002-08517 Revision ECN ** *A 5175893 Orig. of Change Submission Date TAOA 01/30/2015 Migrated to Cypress and assigned document number 002-08517. No change to document contents or format. TAOA 03/15/2016 Updated to Cypress template Document Number: 002-08517 Rev. *A Description of Change Page 28 of 29 MB3793-37A Sales, Solutions, and Legal Information Worldwide Sales and Design Support Cypress maintains a worldwide network of offices, solution centers, manufacturer's representatives, and distributors. To find the office closest to you, visit us at Cypress Locations. PSoC(R) Solutions Products ARM(R) Cortex(R) Microcontrollers Automotive cypress.com/arm cypress.com/automotive Clocks & Buffers Interface Lighting & Power Control Memory cypress.com/clocks cypress.com/interface cypress.com/powerpsoc cypress.com/memory PSoC cypress.com/psoc Touch Sensing PSoC 1 | PSoC 3 | PSoC 4 | PSoC 5LP Cypress Developer Community Community | Forums | Blogs | Video | Training Technical Support cypress.com/support cypress.com/touch USB Controllers Wireless/RF cypress.com/psoc cypress.com/usb cypress.com/wireless (c) Cypress Semiconductor Corporation 2001-2016. This document is the property of Cypress Semiconductor Corporation and its subsidiaries, including Spansion LLC ("Cypress"). This document, including any software or firmware included or referenced in this document ("Software"), is owned by Cypress under the intellectual property laws and treaties of the United States and other countries worldwide. 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Document Number: 002-08517 Rev. *A Revised March 15, 2016 Page 29 of 29