Protected Power Switch Devices Protected Power Switch Devices Raychem Circuit Protection offers silicon-based Protected Power Switch devices as well as the PolySwitch resettable devices for USB protection. USB bus-powered hubs and some USB host applications require power switching as well as overcurrent protection. Raychem Circuit Protection's protected power switch devices help meet both of these requirements as well as in-rush current control. 4 Benefits: Features: Application: * Reduced nuisance tripping during hot-plug * Reduced component count * Device designed such that a fault on one port does not disable remaining ports * Compliant to USB 1.1 and proposed USB 2.0 specifications * UL recognized component * Built-in hot-plug flag delay * Low On-Resistance (90m, typ) * Independent OC and OT protection * Resistance decreases as voltage decreases * Optional imbedded resistors on EN pins * USB Hosts Desktop PC Notebook PC * USB Self-Powered Hubs Monitor Stand-Alone Hub * USB Bus-Powered Hubs Keyboard * USB Function CCD Camera Joystick Raychem Circuit Protection Protected Power Switch Devices 325 Selection Guide for Protected Power Switch Devices Step 1. Verify the circuit's operating parameters. Confirm that the circuit's operating parameters are within the following device ratings. * * * * Input voltage (VIN) Output voltage (VOUT) Output current per port (IOUT) Operating temperature range +3 to +5.5V +3 to +5.5V 0.6A -40 to +85C Step 2. Determine the package type and number of switches per package. The RYC82xx series are available in a variety of package types and number of switches per package. Refer to Table P1 for the options available in package type and switches per package. Dimensions of each package type are available in Table P3 to confirm the device selected will fit in your space requirements. Step 3. Determine the output parameters of the USB controller chip used in your circuit. 4 Some USB controller chips have enable logic that requires the power switch to be active low while others require the switch to be active high. This signal will be connected to the enable pin of the device selected. See Table P1 to select the correct enable logic voltage of the device selected in Step 2 above. Step 4. Determine your preferred circuit implementation for the internal Enable (EN) pull-up/pull-down resistors. The RYC82xx series devices have been designed with an option to minimize the number of external components to achieve functionality. Depending on the design of your circuit you may or may not require the enable resistor to maximize performance of your USB circuit. Devices with the EN resistor on board may eliminate the need for an external resistor, thereby reducing external components. See Table P1 to select the desired configuration for your USB circuit. Step 5. Independently evaluate and test the suitability of and performance of the selected protected power switch. 326 Protected Power Switch Devices Raychem Circuit Protection Protected Power Switch Devices Table P1. Product Series - Number of Switches, Package Type, Enable Logic and EN Resistor Options for Protected Power Switch Devices Part Number Number of Switches Package Type* Enable Logic RYC8210-1M 1 SO-8 Active high EN Resistor on Chip Yes RYC8210-1MM** 1 TSSOP-8 Active high Yes RYC8210-2M 1 SO-8 Active low Yes RYC8210-2MM** 1 TSSOP-8 Active low Yes RYC8210-3M 1 SO-8 Active high No RYC8210-4M 1 SO-8 Active low No RYC8220-1M 2 SO-8 Active high Yes RYC8220-2M 2 SO-8 Active low Yes RYC8220-3M 2 SO-8 Active high No RYC8220-4M 2 SO-8 Active low No RYC8240-1WM 4 SO-16 Active high Yes RYC8240-2WM 4 SO-16 Active low Yes Notes: *Leaded packages are available. Please contact your Raychem Circuit Protection representative for more information. **Please contact your Raychem Circuit Protection representative for availability. 4 Raychem Circuit Protection Protected Power Switch Devices 327 Table P2. Electrical and Thermal Specifications for Protected Power Switch Devices Thermal and Maximum Ratings 1, 2 Symbol Value Units Max. supply voltage VIN +8 V Fault flag voltage VFLG +8 V Fault flag current IFLG 50 A Output voltage VOUT +8 V Output current IOUT Internally limited A Control input VEN -0.3 to +12.0 V Storage temperature TS -65 to +150 C 260 C Max. lead temperature during soldering (5 sec.) Operating Ratings, 3 Supply voltage VIN +3 to +5.5 V Continuous output current IOUT 0.6 A Ambient operating temperature TA -40 to +85 C Thermal resistance (SO-8) JA 120 C/W Electrical Characteristics (VIN = 5V, TA = 25C, unless noted.) 4 Power Switch Condition Min Typ Max Units Switch resistance VIN = 5V, IOUT = 500mA, each switch -- 95 120 m VIN = 3.3V, IOUT = 500mA, each switch -- 90 110 m Output turn-on time RL = 10 each output, consists of delay+rise time -- 3.6 12 ms Output turn-off time RL = 10 each output, consists of delay+fall time -- 2 40 s Short-circuit current limit Each output (enable into 0 load) 0.6 0.9 1.25 A Each output (3 load hot-plugged into EN device), VOUT = 4.0V 0.6 0.9 1.25 A Enable input threshhold Enable input current Low-to-high transition, 4 -- 1.5 2.4 V High-to-low transition, 4 0.8 1.5 -- V VEN = 0V to 5.5V -- 0.01 1 A -- -- 5 pF Switch off, OUT = open -- 0.5 5 A Switches on, OUT = open, 5 -- 200 250 A Each output (output disabled) -- -- 10 A Enable input capacitance Supply current Output leakage current Over Temperature, Under Voltage (UVLO) Lock Out (OVLO) Over temperature shutdown TJ increasing -- 135 -- *C Threshold TJ decreasing -- 125 -- *C UVLO threshold VIN = increasing -- 2.5 -- V VIN = decreasing -- 2.3 -- V VIN = increasing -- 6.4 -- V VIN = decreasing -- 6.1 -- V OVLO threshold Error Flag Error flag output resistance VIN =5V, IL = 10mA, 6 -- 50 100 VIN = 3.3V, IL = 10mA, 6 -- 80 100 Error flag output delay Fault on overcurrent, 7 6 9 15 ms Error flag off current VFLAG = 5V -- 0.01 1 A Notes: 1. Exceeding the maximum rating may damage the device. 2. Devices are ESD sensitive. Handling precautions recommended. 3. The device is not designed to function outside its operating rating. 4. Off is 0.8V and on is 2.4V for the RYC82x0-1 and RYC82x0-3. Off is 2.4V and on is 0.8V for the RYC82x0-2 and RYC82x0-4. The enable input has approximately 200mV of hysteresis. Pull-down/pull-up resistors are on chip for "-1" and "-2" configurations. 5. With internal enable pull up/down resistors. 6. Pull-up resistors are on chip. 7. No error flag output delay on UVLO, OVLO and thermal shut down. 328 Protected Power Switch Devices Raychem Circuit Protection Protected Power Switch Devices Figures P1-P20. Typical Characteristics for Protected Power Switch Devices Figure P1. Test Circuit and Timing Diagram Figure P2. Turn-on Delay Time (VIN = 5V, RL = 10) OUT RL T tf tr CL VOUT 90% 90% 10% TEST CIRCUIT VEN 1 (5V/div) 10% Output rise and fall time T VFlg 2 (5V/div) 50% 50% VEN 50% toff ton off 90% VOUT 50% VEN ton T Vout 3 (5V/div) 90% VOUT 10% 10% Active-low switch delay time Active-high switch delay time T Iout 4 (500mA/div) 0 2.0 4.0 6.0 8.0 10.0 12.0 14.0 16.0 18.0 T (ms) 4 Figure P3. Enabled into Short Circuit Figure P4. Enabled into Short Circuit (extended time with thermal cycling) (VIN = 5V, RL = 0.1) (VIN = 5V, RL = 0.1) VEN 1 (10V/div) VEN 1 (10V/div) VFlg 2 (5V/div) VFlg 2 (5V/div) Vout 3 (5V/div) Vout 3 (5V/div) I out 4 (0.5A/div) Iout 4 (0.5A/div) 0 4.0 8.0 12.0 16.0 20.0 T (ms) Raychem Circuit Protection 24.0 28.0 32.0 36.0 40 1 2 3 4 5 6 7 8 9 10 T (sec) Protected Power Switch Devices 329 Figures P1-P20. Typical Characteristics for Protected Power Switch Devices continued Figure P5. Hot-Plugged Short Circuit Figure P6. Hot-Plugged Short Circuit (extended time with thermal cycling) (TA = 25C, VIN = 5V, RL = .05) (TA = 25C, VIN = 5V, RL = .05) VEN 1 (10V/div) VEN 1 (10V/div) VFLG 2 (5V/div) VFLG 2 (5V/div) VOUT 3 (5V/div) IOUT 4 (1A/div) 0 4 8 12 16 20 24 28 32 36 40 I OUT 4 (1A/div) T (ms) 1 2 3 4 5 6 7 8 9 10 11 T (s) 4 Figure P8. Independent OC/OT Coordination (VIN = 5V, RL = 10) (OC/OT protection in channel A, normal operation in channel B, VIN = 5V, RL = 0.1) (5V/div.) VFLG A Figure P7. Nuisance Trip Elimination (5V/div.) VIA (2.0A/div.) VIB C L = 2000F (0.1A/div.) C L = 1000F VFLG B VEN 1 (10V/div) C L = 100F I OUT 4 (200mA/div) 0 10 20 30 40 50 60 70 80 90 100 T (ms) Time (500ms/div.) 330 Protected Power Switch Devices Raychem Circuit Protection Protected Power Switch Devices Figures P1-P20. Typical Characteristics for Protected Power Switch Devices continued Figure P9. On-Resistance vs. Input Voltage Figure P10. On-Resistance vs. Ambient Temperature (TA = 25C, IL = 500 mA) (VIN = 5V, IL = 500 mA) 1.05E-01 0.11 1.00E-01 9.50E-02 RON [] RON() 0.1 0.09 9.00E-02 0.08 0.07 0.06 8.50E-02 0.05 -60 -45 -30 -15 0 15 30 45 60 75 90 105 Temperature [C] 8.00E-02 3.0 3.5 4.0 4.5 5.0 5.5 6.0 V_in(V) 4 Figure P11. Enable Threshold vs. Supply Voltage Figure P12. On-State Supply Current vs. Input Voltage 400 2 350 1.8 300 On-State Supply Current (A) Enable Threshold Voltage (V) 1.6 1.4 1.2 1 0.8 0.6 250 200 150 100 0.4 0.2 50 0 3 3.5 4 4.5 Supply Voltage (V) 5 5.5 0 3.0 3.5 4.0 4.5 5.0 5.5 Vin (V) -40C Raychem Circuit Protection 25C 125C Protected Power Switch Devices 331 Figures P1-P20. Typical Characteristics for Protected Power Switch Devices continued Figure P13. On-State Supply Current vs. Ambient Temperature Figure P14. Off-State Supply Current vs. Input Voltage (TA = 25C) (VIN = 5V) 1000 Off-State Supply Current (A) Current (A) 1.0 100 0.1 0.01 0.001 0.0001 0.00 1.00 2.00 3.00 4.00 5.00 6.00 7.00 Input Voltage (V) 10 0 20 40 60 80 100 Temperature (C) 4 Figure P15. Off-State Supply Current vs. Ambient Temperature Figure P16. Current Limit vs. Input Voltage (TA = 25C) (VIN = 5V) 1.2 1 10 0.8 Current Limit (A) Off-State Supply Current (A) 100 1.0 0.1 0.01 0.6 0.001 0.4 0.0001 0 20 40 60 80 100 Temperature (C) 0.2 0 3.5 4 4.5 5 5.5 Vin (V) 332 Protected Power Switch Devices Raychem Circuit Protection Protected Power Switch Devices Figures P1-P20. Typical Characteristics for Protected Power Switch Devices continued Figure P17. Current Limit vs. Ambient Temperature (VIN = 5V) Figure P18. Hot-Plug Short Circuit Current vs. Supply Voltage (TA = 25C) 0.9 16 0.8 14 0.7 12 Peak Short Circuit Current (A) Current Limit (A) 1 0.6 0.5 0.4 0.3 10 8 6 4 0.2 2 0.1 0 3 0 -40 -20 0 20 40 60 80 3.5 4 4.5 5 5.5 4 Input Voltage (V) 100 Temperature (C) Figure P19. Hot-Plug Short Circuit vs. Ambient Temperature Figure P20. Enable Voltage vs. Ambient Temperature (VIN = 5V) (VIN = 5V) 15 Tek Stop: 5.00kS/s 16 Acqs [ 14 T ] Peak Short Circuit Current (A) 13 12 11 VOUTA 2 (5V/div) 10 9 8 I OUTA 4 (500mA/div) 7 0 20 40 60 80 100 120 140 160 180 T (ms) 6 5 -50 -30 -10 10 30 50 70 90 110 130 Ambient Temperature (C) Raychem Circuit Protection Protected Power Switch Devices 333 200 RYC8210 & RYC8220 Pin Configurations for Protected Power Switch Devices Figure P21. Pin Configuration for RYC8210 Series RYC8210 RYC8210 1 8 OUT FLG 2 7 IN GND 3 6 OUT NC 4 5 NC EN (EN) 1 (FLG) 2 LOGIC CHARGE PUMP 6, 8 (OUT) 7 (IN) 5 (NC) (NC) 4 (GND) 3 Pin Descriptions 4 Pin Name Pin Number Pin Function EN 1 FLG 2 GND IN 3 7 OUT NC 6 and 8 4 and 5 Enable (Input): Logic-compatible enable input. High input > 2.4V. Low input < 0.8V (-1 active high, -2 active low). Do not float. Fault Flag (Output): Active-low open-drain output. Indicates overcurrent, UVLO, OVLO and thermal shutdown. Ground: Supply return Supply Input: Output MOSFET drain. Also supplies IC's internal circuitry. Connect to positive supply. Switch Output: Output MOSFET source. Typically connect to switched side of load. No connections Figure P22. Pin Configuration for RYC8220 Series RYC8220 ENA 1 RYC8220 8 OUTA FLGA 2 7 IN FLGB 3 6 GND ENB 4 5 OUTB (ENA) 1 (FLGA) 2 LOGIC CHARGE PUMP 8 (OUTA) 7 (IN) (FLGB) 3 (ENB) 4 LOGIC CHARGE PUMP 5 (OUTB) (GND) 6 Pin Descriptions Pin Number Pin Name Pin Function ENA ENB FLGA FLGB GND IN 1 4 2 3 6 7 OUTA OUTB 8 5 Enable (Input): Logic-compatible enable input. High input > 2.4V. Low input < 0.8V (-1 active high, -2 active low). Do not float. Fault Flag (Output): Active-low open-drain output. Indicates overcurrent, UVLO, OVLO and thermal shutdown. Ground: Supply return Supply Input: Output MOSFET drain. Also supplies IC's internal circuitry. Connect to positive supply. Switch Output: Output MOSFET source. Typically connect to switched side of load. 334 Protected Power Switch Devices Raychem Circuit Protection Protected Power Switch Devices RYC8240 Pin Configurations for Protected Power Switch Devices Figure P23. Pin Configuration for RYC8240 Series RYC8240 (GND A/B) RYC8240 GND(A/B) 1 16 ENA (ENA) OUTA 2 15 FLGA (FLGA) IN(A/B) 3 14 FLGB LOGIC CHARGE PUMP (OUTA) (IN) OUTB 4 13 ENB ENC 5 12 OUTC FLGC 6 11 IN(C/D) (FLGB) (ENB) FLGD 7 10 OUTD END 8 9 GND(C/D) (ENC) (FLGC) LOGIC CHARGE PUMP LOGIC CHARGE PUMP (OUTB) (OUTC) (IN) (FLGD) (END) LOGIC CHARGE PUMP (OUTD) GND(C/D) 4 Pin Descriptions Pin Number Pin Name Pin Function ENA ENB ENC END 16 13 5 8 Enable (Input): Logic-compatible enable input. High input > 2.4V Low input < 0.8V (-1 active high, -2 active low). FLGA FLGB FLGC FLGD 15 14 6 7 Fault Flag (Output): Active-low open-drain output. Indicates overcurrent, UVLO, OVLO and thermal shutdown. OUTA OUTB OUTC OUTD 2 4 12 10 Switch Output: Output MOSFET source. Typically connect to switched side of load. GND(A/B) GND(C/D) IN(A/B) IN(C/D) Raychem Circuit Protection 1 9 3 11 Ground: Supply return Supply Input: Output MOSFET drain. Also supplies IC's internal circuitry. Connect to positive supply. Protected Power Switch Devices 335 Figure P24-P26 Physical Descriptions for Dimensions of Protected Power Switch Devices Figure P24. TSSOP-8 Device Dimensions A G 8 5 P4 PL B 1 M .25 [0.010] M B 4 F J C Base Plane K .10 [0.004] D8PL 4 0.08 [0.003] M T B A Figure P25. SO-8 Device Dimensions A 8 5 P4 PL B 1 M .25 [0.010] M B M 4 F G J C Base Plane T K .10 [0.004] D8 PL 0.25 [0.010] M T A M B S 336 Protected Power Switch Devices Raychem Circuit Protection Protected Power Switch Devices Figure P24-P26 Physical Descriptions for Dimensions of Protected Power Switch Devices continued Figure P26. SO-16 Device Dimensions A 16 9 P8 PL B 1 M .25 [0.010] M B M 8 F G J C Base Plane T K .10 [0.004] D8 PL 4 0.25 [0.010] M T A M B S Table P3. Dimensions of Protected Power Switch Devices in Millimeters (Inches) Figure Package Type Dimension Figure P24 TSSOP-8 Figure P25 SO-8 Figure P26 SO-16 Min Max Min Max Min Max A 2.90 (0.114) 3.10 (0.122) 4.80 (0.190) 5.00 (0.197) 9.80 (0.386) 10.00 (0.393) B 2.90 (0.114) 3.10 (0.122) 3.80 (0.150) 4.00 (0.157) 3.80 (0.150) 4.00 (0.157) C 0.80 (0.032) 1.10 (0.043) 1.35 (0.054) 1.75 (0.068) 1.35 (0.054) 1.75 (0.068) D 0.25 (0.110) 0.40 (0.016) 0.35 (0.013) 0.49 (0.020) 0.35 (0.013) 0.49 (0.020) F 0.40 (0.016) 0.70 (0.027) 0.40 (0.016) 1.27 (0.050) 0.40 ( 0.016) 1.27 ( 0.050) G 0.65 BSC (0.026) BSC 1.27 BSC (0.05) BSC 1.27 BSC (0.05) BSC J 0.13 (0.005) 0.23 (0.009) 0.18 (0.0075) 0.25 (0.010) 0.18 ( 0.0075) 0.25 ( 0.010) K 0.05 (0.002) 0.15 (0.006) 0.10 (0.004) 0.25 (0.010) 0.10 (0.004) 0.25 (0.101) M 0 6 0 8 0 8 P 4.80 (0.189) 5.00 (0.197) 5.80 (0.228) 6.20 (0.244) 5.80 (0.228) 6.20 (0.244) Note: Dimensions and tolerancing per ANSI Y14.5M-1982. Dimensions A and B are datums and T is a datum surface. Dimensions A and C do not include mold flash. Mold flash shall not exceed 0.15 mm (0.006 in.) per side. Dimension D does not include interlead flash. Interlead flash shall not exceed 0.25 mm (0.010 in.) Raychem Circuit Protection Protected Power Switch Devices 337 Table P4. Environmental Specifications and Reliability Tests for Protected Power Switch Devices Test Conditions Flammability IEC 695-2-2 (Needle flame test) Pass Criteria 20 sec. Flame application Solderability ANSI/J-STD-002, Category 3 > 95% coverage Solder heat withstand IEC 68-2-2, 260C for 10 sec. no damage Solvent resistance MIL-STD 202 Method 215 no mechanical damage Temperature humidity bias per JESD26, Test Method A101-B 1000 hrs @ 85C/85% RH High temperature storage life per JESD26, Test Method A103-A 1000 hrs @ 150C High temperature operating life per JESD26, Test Method A108-A 1000 hrs @ rated current, 120C Thermal shock per JESD26, Test Method A104-A 1000 cycles @ -55C to 125C Autoclave (PTH) per JESD26, Test Method A102-B 96 hrs @ 121C, 100% RH, 15 psi Recommended Reflow Profile for Protected Power Switch Devices Power switches are compatible with standard reflow soldering techniques. The following guidelines will assist in the proper installation of the device: 338 Protected Power Switch Devices 300 Preheating Soldering 30 to 90 sec. 10 to 15 sec. Cooling 250 Temperature (C) 4 * Recommended reflow methods: IR, vapor phase oven, hot air oven. * Always preheat the device to prevent excessive thermal shock and stress. * Recommended maximum paste thickness of 0.25 mm (0.010 in.) * Profile may vary among different soldering systems, depending on board density and types of components used. * Devices may be cleaned using standard industry methods and solvents. * Due to potential damage, it is recommended that reworked boards should use a new device. Figure P27. Recommended Reflow Profile 200 150 100 50 0 120 sec. Time Raychem Circuit Protection Protected Power Switch Devices Table P5. Packaging and Marking Information for Protected Power Switch Devices Part Number Tape & Reel Quantity Standard Package Quantity Part Marking Agency Recognition RYC8210-1M 2,500 10,000 8210-1M UL RYC8210-1MM 2,500 10,000 8210-1MM UL RYC8210-2M 2,500 10,000 8210-2M UL RYC8210-2MM 2,500 10,000 8210-2MM UL RYC8210-3M 2,500 10,000 8210-3M UL RYC8210-4M 2,500 10,000 8210-4M UL RYC8220-1M 2,500 10,000 8220-1M UL RYC8220-2M 2,500 10,000 8220-2M UL RYC8220-3M 2,500 10,000 8220-3M UL RYC8220-4M 2,500 10,000 8220-4M UL RYC8240-1WM 2,500 10,000 8240-1WM UL RYC8240-2WM 2,500 10,000 8240-2WM UL Agency Recognition for Protected Power Switch Devices UL File # E211484 Part Numbering System for Protected Power Switch Devices RYC82 20 - 3 M 4 Package type indicator M - SO-8 MM - TSSOP-8 WM - SO-16 Enable and resistor indicator 1 - Enable high/with internal resistor 2 - Enable low/with internal resistor 3 - Enable high/without internal resistor 4 - Enable low/without internal resistor Number of ports 1 - 1 port 2 - 2 ports 4 - 4 ports Product Series Raychem Circuit Protection Protected Power Switch Devices 339 Table P6. Tape and Reel Specifications for Protected Power Switch Devices Protected power switch devices are supplied on tape and reel per EIA481-2 standards. See Figures P28 and P29 on the next page for details. Dimension Description SO-8 Dimension (mm) W 12 0.3 Dimension (mm) 16 Tolerance 0.3 P0 4.0 0.10 4.0 0.10 P1 8.0 0.10 8.0 0.10 P2 2.0 0.10 2.0 0.10 A0 6.40 0.10 6.55 0.10 B0 5.2 0.10 10.38 0.10 B1 max. 6.0 -- 11.18 -- D0 1.55 0.05 1.55 F 7.5 0.10 7.5 0.10 E1 1.75 0.10 1.75 0.10 10.25 T max. 0.3 0.05 0.3 0.05 T1 max 0.1 -- 0.1 -- 2.10 -- 0.1 14.25 0.05 E 2 min. K0 4 SO-16 Tolerance 2.10 -- 0.1 Leader min. 390 -- 390 -- Trailer min. 160 -- 160 -- Reel Dimensions A max 340 -- 340 -- N min. 50 -- 50 -- W1 12.4 +2.0,-0 12.4 +2.0,-0 W2 max. 16.4 -- 16.4 -- 340 Protected Power Switch Devices Raychem Circuit Protection Protected Power Switch Devices Figure P28. EIA Taped Component Dimensions P0 D0 T Embossment P2 E1 Cover tape A0 W F E2 B1 B0 K0 T1 P1 Center lines of cavity Figure P29. EIA Reel Dimensions W2 (measured at hub) A N (hub dia.) W1 (measured at hub) Cover tape Carrier tape Embossed cavity Raychem Circuit Protection Protected Power Switch Devices 341 4 WARNING: * Operation beyond the maximum ratings or improper use may result in device damage and possible electrical arcing and flame. * The devices are intended for protection against occasional overcurrent fault conditions and should not be used when repeated fault conditions or prolonged trip events are anticipated. * Device performance can be impacted negatively if devices are handled in a manner inconsistent with recommended electronic, thermal, and mechanical procedures for electronic components. 4 342 Protected Power Switch Devices Raychem Circuit Protection