MB3793-37APNF-G-JN-ER6E1 - CYPRESS SEMICONDUCTOR

MB3793-37A

Power Voltage Monitoring IC with

Watchdog Timer Datasheet

Cypress Semiconductor Corporation • 198 Champion Court • San Jose,CA 95134-1709 • 408-943-2600

Document Number: 002-08517 Rev. *A Revised March 15, 2016

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.

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

Model No. Marking code Detection voltage

MB3793-37A 3793AF 3.7 V

MB3793-37A

Document Number: 002-08517 Rev. *A Page 2 of 29

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

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

MB3793-37A

Document Number: 002-08517 Rev. *A Page 3 of 29

1. Pin Assignment

2. Pin Description

Pin no. Symbol Descriptions Pin no. Symbol Descriptions

1 RESET Outputs reset pin 5 VCC Power supply pin

2 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

RESET

CTW

CTP

GND

CK1

CK2

INH

VCC

(FPT-8P-M01)

(FPT-8P-M02)

(Top view)

MB3793-37A

Document Number: 002-08517 Rev. *A Page 4 of 29

3. Block Diagram

I1 = 3 μA

..I2 = 30 μA

R1 =

494 kΩ

CTP

To VCC of all blocks

Pulse generator 1

Watchdog

timer

Reference

voltage

generator

To GND of

all blocks

Pulse generator 2

Output circuit

Logic circuit

RESET

INH

CTW

CK1

CK2

VCC

GND

Comp.S

−

VREF = 1.24 V

R2 =

240 kΩ

MB3793-37A

Document Number: 002-08517 Rev. *A Page 5 of 29

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.

MB3793-37A

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5. Absolute Maximum Ratings

*: 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

*: 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.

Parameter Symbol Conditions Rating Unit

Min Max

Power supply voltage* VCC — –0.3 +7 V

Input voltage*

CK1 VCK1 —

–0.3 +7 VCK2 VCK2 —

INH IINH —

Reset output current RESET IOL

IOH — –10 +10 mA

Allowable loss PDTa  +85C — 200 mW

Storage temperature Tstg — –55 +125 C

Parameter Symbol Conditions Value Unit

Min Typ Max

Power supply voltage VCC — 1.2 — 6.0 V

Reset (RESET) output current IOL

IOH —–5—+5mA

Power-on reset hold time setting capacity CTP — 0.001 — 10 F

Watchdog-timer monitoring time setting

capacity* CTW — 0.001 — 1 F

Operating ambient temperature Ta — –40 — +85 C

MB3793-37A

Document Number: 002-08517 Rev. *A Page 7 of 29

7. Electrical Characteristics

7.1 DC Characteristics

(VCC = +5 V, Ta = +25C)

*: The values enclosed in parentheses ( ) are setting assurance values.

Parameter Symbol Conditions Value Unit

Min Typ Max

Power supply current ICC1 After exit from reset — 30 50 A

Detection voltage

VSL VCC falling Ta = +25C 3.60 3.70 3.80

Ta = –40C to +85C (3.55)* 3.70 (3.85)*

VSH VCC rising Ta = +25C 3.69 3.79 3.89

Ta = –40C to +85C (3.64)* 3.79 (3.94)*

Detection voltage hysteresis

difference VSHYS VSH – VSL 40 85 130 mV

Clock-input threshold voltage

VCIH CK rising (1.4)* 1.9 2.5 V

VCIL CK falling 0.8 1.3 (1.8)* V

Clock-input hysteresis VCHTS — (0.4)* 0.6 (0.8)* V

Inhibition-input voltage

VIIH —3.5——

VIIL ——00.8

Input current

(CK1, CK2, INH)

IIH VCK = 5 V —01.0A

IIL VCK = 0 V –1.0 0 — A

Reset output voltage

VOH IRESET = –5 mA 4.5 4.75 — V

VOL IRESET = +5 mA —0.120.4V

Reset-output minimum power

voltage VCCL IRESET = +50 A—0.81.2V

MB3793-37A

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7.2 AC Characteristics

(VCC = +5 V, Ta = +25C)

*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.

Parameter Symbol Conditions Value Unit

Min Typ Max

Power-on reset hold time tPR CTP = 0.1 F80 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 F7.5 15 22.5 ms

Watchdog timer reset time tWR CTP = 0.1 F51015ms

Clock input pulse width tCKW — 500 — — ns

Clock input pulse cycle tCKT —20——s

Reset (RESET) output transition time*1

Rising tr*1CL = 50 pF — — 500 ns

Falling tf*2CL = 50 pF — — 500 ns

MB3793-37A

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8. Diagram

8.1 Basic operation (Positive clock pulse)

CTP

RESET

INH

CTW

CK1

CK2

VSH

VCC

VSL

Vth

(1) (2) (3) (4)(5) (5) (6) (7) (8) (9) (10) (11) (12) (13)

tPR tWD tPR

tWR

tCKW

tCKT

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8.2 Basic operation (Negative clock pulse)

CTP

RESET

INH

CTW

CK1

CK2

VSH

VCC

VSL

Vth

tPR tWD tPR

tWR

tCKW

tCKT

(1) (2) (3) (4)(5) (5) (6) (7) (8) (9) (10) (11) (12) (13)

MB3793-37A

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8.3 Single-clock input monitoring (Positive clock pulse)

CTP

RESET

CTW

CK1

Vth

CK2

tWR

tWD

tCKT

tCKW

Note: The MB3793 can monitor only one clock.

The MB3793 checks the clock signal at every other input pulse. Therefore, set watchdog timer mon-

itor time tWD to the time that allows the MB3793 to monitor the period twice as long as the input

clock pulse.

MB3793-37A

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8.4 Inhibition operation (Positive clock pulse)

CTP

RESET

INH

CTW

CK1

CK2

VSH

VCC

VSL

Vth

tPR tWD tPR

tWR

tCKW

(1) (2) (3) (4)(5) (5) (6) (7) (11) (8) (9) (10) (12) (13)

MB3793-37A

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8.5 Clock pulse input supplementation (Positive clock pulse)

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”

CTW

CK1

CK2

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.

MB3793-37A

Document Number: 002-08517 Rev. *A Page 14 of 29

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.

MB3793-37A

Document Number: 002-08517 Rev. *A Page 15 of 29

10. Typical Characteristics

Power supply current: ICC (μA)Reset output voltage: VRESET (V)

Reset output voltage: VRESET (mV) Detection voltage: VSH and VSL (V)

Power supply voltage: VCC (V) Operating ambient temperature: Ta (°C)

Power supply current-Power supply voltage

Reset output current: IRESET (mA) Reset output current: IRESET (mA)

Reset output voltage-Reset output current

(P-MOS side)

Reset output voltage-Reset output current

(N-MOS side)

Detection voltage -

Operating ambient temperature

f = 1 kHz

Duty = 10%

VL = 0 V

VH = VCC

MB3793-37A

CTW CTP

VINH VCC

0.01 μF0.1 μF

0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0 10

Watchdog timer monitoring

(VINH = 0 V)

Ta = −40°C to +85°C

VSH (Ta = +25°C)

Max

VSL (Ta = +25°C)

(Ta = −40°C to +85°C)

Typ

Min

Max

Typ

Min

VSH

VSL

3.5

−20−40 0 +20 +40 +60 +80 +100

3.6

3.7

3.8

3.9

4.0

Ta = +25°C

Ta = +85°C

Ta = −40°C

4.00−1−2−3−4−5−6−7−8−9−10

4.1

4.2

4.3

4.4

4.5

4.6

4.7

4.8

4.9

5.0

VRESET IRESET

Ta RON

4.800 V

−5 mA

−40°C40 Ω

4.750 V

+25°C50 Ω

4.707 V

+85°C58.6 Ω

Ta = +25°C

Ta = +85°C

Ta = −40°C

012345678910

100

200

300

400

500 VRESET IRESET

Ta RON

98 mV

+5 mA

−40°C19.6 Ω

135 mV

+25°C27 Ω

167 mV

+85°C33.4 Ω

MB3793-37A

Document Number: 002-08517 Rev. *A Page 16 of 29

Watchdog timer reset time: tWR (ms)

012 34 56 7

Ta = +85°C

Ta = +25°C

Ta = −40°C

Reset output voltage -

Power supply voltage

Reset-on reset time -

Operating ambient temperature

(when VCC rising)

Watchdog timer reset time -

Operating ambient temperature

(when monitoring)

Watchdog timer monitoring time -

Operating ambient temperature

Reset output voltage: VRESET (V)

Power-on reset time: tPR (ms)Watchdog timer monitoring time: tWD (ms)

Power supply voltage: VCC (V)

Operating ambient temperature: Ta (°C)

Pull-up resistance: 100 kΩ

−40 −20 0 +20 +40 +60+80 +100

100

120

140

160

180

200

220

240

260

Ta = −40°C to +85°C

Ta = +25°C

Max

Typ

Min

−40 −20 0 +20 +40 +60 +80+100

Ta = −40°C to +85°C

Ta = +25°C

Max

Typ

Min

−40 −20 0 +20 +40 +60 +80+100

Ta = −40°C to +85°C

Ta = +25°C

Max

Typ

Min

MB3793-37A

Document Number: 002-08517 Rev. *A Page 17 of 29

104

103

102

101

10 −1

10−410−310−210−1110

1102

Ta = −40°C

Power-on reset hold time: tPR (ms)

Power-on reset hold time setting capacitance:

CTP (μF)

Power-on reset hold time -

capacitance

Watchdog-timer monitoring time: tWD (ms)

Watchdog-timer monitoring time

setting capacitance: CTW (μF)

Watchdog-timer monitoring time -

capacitance

Watchdog timer reset time: tWR (ms)

Power-on reset hold time setting capacitance:

CTP (μF)

Watchdog timer reset time -

capacitance

Ta = +25°C

Ta = +85°C

103

102

101

10−1

10−410−310−210−1110

1102

10−2

Ta = −40°C

Ta = +25°C

Ta = +85°C

103

102

101

10−1

10−410−310−210−1110

10−5

Ta = −40°C

Ta = +25°C

Ta = +85°C

MB3793-37A

Document Number: 002-08517 Rev. *A Page 18 of 29

11. Application Example

11.1 Supply voltage monitor and watchdog timer (1-clock monitor)

RESET

Microprocessor

VCC

RESET

GND

CTW*CTP*

VCC

CTW

CTP CK1

CK2INH

MB3793

*: Use a capacitor with less leakage current.

The MB3793 monitors the clock (CK1/CK2) at every other input pulse.

MB3793-37A

Document Number: 002-08517 Rev. *A Page 19 of 29

11.2 Supply voltage monitor and watchdog timer stop

GND

RESET V

GND

RESET

Microprocessor 1 Microprocessor 2

GND

HALT

RESET

GND

INH

CTW CK1

CK2CTP

MB3793

*: Use a capacitor with less leakage current.

MB3793-37A

Document Number: 002-08517 Rev. *A Page 20 of 29

12. Typical Application

VCC

CTW*CTP*

GND

INH GND

VCC

CTP

CTW RESET

CK1

CK2

RESET

Microprocessor 1 Microprocessor 2

GND

VCC RESET

GND

VCC

MB3793

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]

However, when tWD [ms] B  CTW [F]

tWR [ms] D  CTP [F]

Values of A, B, C, and D

2. (Example) when CTP = 0.1 F and CTW = 0.01 F

A B C D Remark

1300 1500 0 100 VCC = 5.0 V

time

(ms)

tPR 130

tWD 15

tWR 10

about 10,

CTP

CTW

*: Use a capacitor with less leakage current.

MB3793-37A

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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

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.

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

MB3793-37A

Document Number: 002-08517 Rev. *A Page 22 of 29

16. Marking Format (Lead Free version)

INDEX

3793AF

E1XXXX

XXX

Lead

Free version

SOP-8

(FPT-8P-M01)

3793AF

XXXX

E1 XXX

Lead

Free version

SOP-8

(FPT-8P-M02)

MB3793-37A

Document Number: 002-08517 Rev. *A Page 23 of 29

17. Labeling Sample (Lead free version)

2006/03/01

ASSEMBLED IN JAPAN

QC PASS

(3N) 1MB123456P-789-GE1

1000

(3N)2 1561190005 107210

1,000

PCS

0605 - Z01A

1000

1/1

1561190005

MB123456P - 789 - GE1

Lead Free version

lead-free mark

JEITA logo JEDEC logo

MB3793-37A

Document Number: 002-08517 Rev. *A Page 24 of 29

18. MB3793-37APF-❏❏❏E1, MB3793-37APNF-❏❏❏E1

Recommended Conditions Of Moisture Sensitivity Level

[Temperature Profile for Cypress Standard IR Reflow]

(1) IR (infrared reflow)

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 (125°C, 24h)

Storage conditions 5°C to 30°C, 70RH or less (the lowest possible humidity)

260 °C

(e)

(d')

(d)

255 °C

170 °C

190 °C

RT (b)

(a)

(c)

Note : Temperature : the top of the package body

(a) Temperature Increase gradient : Average 1°C/s to 4°C/s

(b) Preliminary heating : Temperature 170°C to 190°C, 60s to 180s

(d) Actual heating : Temperature 260°C MAX; 255°C or more, 10s or less

(d’) : Temperature 230°C or more, 40s or less

Temperature 225°C or more, 60s or less

Temperature 220°C or more, 80s or less

(e) Cooling : Natural cooling or forced cooling

H rank : 260°C Max.

MB3793-37A

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(2) Manual soldering (partial heating method)

Conditions : Max Temperature 400°C

Times : 5 s max/pin

MB3793-37A

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19. Package Dimensions

8-pin plastic SOP Lead pitch 1.27 mm

Package width

package length

5.3 × 6.35 mm

Lead shape Gullwing

Sealing method Plastic mold

Mounting height 2.25 mm MAX

Weight 0.10 g

Code

(Reference) P-SOP8-5.3×6.35-1.27

8-pin plastic SOP

(FPT-8P-M01)

2002-2010 FUJITSUSEMICONDUCTOR LIMITED F08002S-c-6-9

0.13(.005)

Details of "A" part

7.80±0.405.30±0.30

(.209±.012) (.307±.016)

.250 –.008

+.010

–0.20

+0.25

6.35

INDEX

1.27(.050)

0.10(.004)

0.47±0.08

(.019±.003)

–0.04

+0.03

0.17

.007 +.001

–.002

"A" 0.25(.010)

(Stand off)

0~8°

(Mounting height)

2.00 +0.25

–0.15

.079 +.010

–.006

0.50±0.20

(.020±.008)

0.60±0.15

(.024±.006)

0.10 +0.10

–0.05

–.002

+.004

.004

0.10(.004)

Dimensions in mm (inches).

Note: The values in parentheses are reference values.

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.

MB3793-37A

Document Number: 002-08517 Rev. *A Page 27 of 29

8-pin plastic SOP Lead pitch 1.27 mm

Package width ×

package length 3.9 mm × 5.05 mm

Lead shape Gullwing

Sealing method Plastic mold

Mounting height 1.75 mm MAX

Weight 0.06 g

8-pin plastic SOP

(FPT-8P-M02)

(

FPT-8P-M02

)

1.27(.050)

3.90±0.30 6.00±0.20

.199 –.008

+.010

–0.20

+0.25

5.05

0.13(.005) M

(.154±.012) (.236±.008)

0.10(.004)

0.44±0.08

(.017±.003)

–0.07

+0.03

0.22

.009 +.001

–.003

45°

0.40(.016)

"A" 0~8°

0.25(.010)

(Mounting height)

Details of "A" part

1.55±0.20

(.061±.008)

0.50±0.20

(.020±.008)

0.60±0.15

(.024±.006)

0.15±0.10

(.006±.004)

(Stand off)

0.10(.004)

2002-2012 FUJITSUSEMICONDUCTOR LIMITED F08004S-c-5-10

Dimensions in mm (inches).

Note: The values in parentheses are reference values.

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.

MB3793-37A

Document Number: 002-08517 Rev. *A Page 28 of 29

20. Major Changes

Spansion Publication Number: MB3793-37A_DS04-27403

NOTE: Please see “Document History” about later revised information.

Document History

Page Section Change Results

Revision 5.0

--Company name and layout design change

1 Description Deleted "There is also a mask option that can detect voltages of 4.9 V to 2.4

V in 0.1-V steps."

Document Title: MB3793-37A Power Voltage Monitoring IC with Watchdog Timer Datasheet

Document Number: 002-08517

Revision ECN Orig. of

Change

Submission

Date Description of Change

** TAOA 01/30/2015 Migrated to Cypress and assigned document number 002-08517.

No change to document contents or format.

*A 5175893 TAOA 03/15/2016 Updated to Cypress template

Document Number: 002-08517 Rev. *A Revised March 15, 2016 Page 29 of 29

MB3793-37A

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