FPF2143 Fairchild Semiconductor, FPF2143 Datasheet
FPF2143
Specifications of FPF2143
Related parts for FPF2143
FPF2143 Summary of contents
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... ON pin is still active. The FPF2142/46 do not have this auto-restart feature so the switch will remain off until the ON pin is cycled. For the FPF2143/47, a current limit condition will immediately pull the fault signal pin low and the part will remain in the constant-current mode until the switch current falls below the current limit ...
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Typical Application Circuit OFF ON Functional Block Diagram V IN UVLO ON THERMAL SHUTDOWN FLAGB FPF2140/42/43/44/46/47 Rev OUT FPF2140/2/3/4/6/7 FLAGB PGOOD ON GND CONTROL LOGIC CURRENT LIMIT 2 TO LOAD REVERSE CURRENT BLOCKING V OUT PGOOD ...
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Pin Configuration Pin Description Pin Name 1 PGOOD OUT 4 FLAGB 5, 7 GND 6 ON Absolute Maximum Ratings Parameter ON, FLAGB, PGOOD to GND IN OUT Power Dissipation Operating and ...
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... I = 10mA IN SINK 5. 5V 10mA IN SINK V = 1.8V 10mA IN SINK 0V 5.5V, ON OUT V = short to GND IN FPF2140, FPF2142, FPF2143 V = 3.3V LIM V = 3.0V FPF2144, FPF2146, OUT FPF2147 Shutdown Threshold T increasing J Return from Shutdown Hysteresis V V Increasing UVLO 500Ω 0.1µ 500Ω 0.1µ 500Ω ...
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Typical Characteristics 1.5 2 2.5 3 3.5 SUPPLY VOLTAGE (V) Figure 1. Quiescent Current vs. Input Voltage 1.3 1.2 1.1 1 0.9 0.8 0.7 0.6 1.5 2 2.5 3 3.5 SUPPLY VOLTAGE ...
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Typical Characteristics 350 300 250 200 150 100 OUT Figure 7. Current Limit vs. Output Voltage 320 FPF2140 / 315 310 305 300 295 290 -65 -40 ...
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Typical Characteristics 33 32.5 32 31.5 31 30.5 30 29.5 -40 - JUNCTION TEMPERATURE (°C) J Figure 13. T vs. Temperature BLANK V ON 2V/DIV I OUT 10mA/DIV V OUT 2V/DIV 100µs/DIV Figure 15. T Response DR ...
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Typical Characteristics V IN 2V/DIV V ON 2V/DIV I OUT 500mA/DIV V OUT 2V/DIV 50µs/DIV Figure 19. Current Limit Response Time (Output is loaded by 2.2Ω 5V/DIV V ON 5V/DIV V OUT 5V/DIV PGOOD 5V/DIV 10µs/DIV Figure ...
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... FPF2143/47. FLAGB remains LO through the Auto-Restart Time for the FPF2140/44. For the FPF2142/ 46, FLAGB is latched LO and ON must be toggled to release it. With the FPF2143/47, FLAGB is LO during the faults and immediately returns HI at the end of the fault condition. FLAGB is an open-drain MOSFET which requires a pull-up resistor between V and FLAGB ...
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... An improper layout could result higher junction temperature and triggering the thermal shutdown protection feature. This concern applies specially with FPF2143 and FPF2147 where load switch turns on into an overcurrent condition and switch supplies constant current limit value. In this case power dissipation of the ...
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Application Notes V IN1 OFF ON V IN2 TP Power good function in sequential startup. No battery is loaded to the output Power Good FPF214X family has a "Power Good" feature. PGOOD pin is an open-drain MOSFET which asserts high ...
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Dimensional Outline and Pad Layout FPF2140/42/43/44/46/47 Rev www.fairchildsemi.com ...
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... TRADEMARKS The following are registered and unregistered trademarks and service marks Fairchild Semiconductor owns or is authorized to use and is not intended exhaustive list of all such trademarks. ® ACEx Build it Now™ CorePLUS™ CROSSVOLT™ CTL™ Current Transfer Logic™ ® ...