MAX14544 Maxim, MAX14544 Datasheet
MAX14544
Related parts for MAX14544
MAX14544 Summary of contents
Page 1
... After the retry time, the device recloses for the duration of the blanking time to check if the load current is lower than the limit. The MAX14544 repeats this cycle if the overload condition is present. During the cycle, FLAG remains asserted. The MAX14544 remains on after the overload condition is removed and FLAG deasserts ...
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... Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability ...
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... OFF 3.3V, output high and then short circuit applied 10FF ceramic, LIM 1FF ceramic OUT 3.3V, Figures 1 and MAX14544, Figure 1 RETRY V = 3.3V 250mA REVERSE t DET ceramic 1FF ceramic OUT 500mV to OUT IN t REC 500mV ...
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... I CURRENT LIMIT LOAD CURRENT ON SWITCH OFF FLAG ON EN OFF Figure 1. MAX14544 Timing Diagram (Waveforms Not to Scale) CURRENT LIMIT LOAD CURRENT Figure 2. MAX14545 Timing Diagram (Waveforms Not to Scale Accessory Switch LIM BUS BLANK BLANK RETRY t t BLANK BLANK ON SWITCH ...
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+3.3V 10FF 1FF OUT QUIESCENT SUPPLY CURRENT vs. SUPPLY VOLTAGE 450 400 350 300 250 200 150 100 50 0 2.3 2.7 3.1 3.5 ...
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... POWER-UP RESPONSE MAX14544/5 toc12 200µs/div 85 CURRENT LIMIT RESPONSE MAX14544/5 toc15 ISET HIGH I OUT 200mA/div V OUT 5V/div V FLAG 5V/div 20ms/div BLANKING TIME MAX14544/5 toc18 MAX14544 ISET HIGH I OUT 200mA/div V OUT 2V/div V FLAG 2V/div 10ms/div V IN 5V/div V OUT 5V/div I OUT 50mA/div ...
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... Exposed Pad. Connect EP to GND. For enhanced thermal dissipation, connect large copper ground — EP plane. Do not use EP as the sole ground connection. IN UVLO OVLO EN ISET FLAG V Accessory Switch LIM BUS FUNCTION CHARGE PUMP REVERSE CURRENT FORWARD CURRENT MAX14544 MAX14545 Pin Description Functional Diagram OUT CONTROL GND 7 ...
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... FLAG to the microprocessor. After the retry time elapses, the MAX14544 switch is closed for the duration of the blank- ing time to check if the load current is lower than the limit. Cycle the power or EN input to turn the MAX14545 switch back on ...
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... FLAG goes low immediately with no fault-blanking time. When IN drops below V (1.8V min), the switch turns off but FLAG stays high. The MAX14544/MAX14545 turns back on when the operating range. Applications Information To limit the input-voltage drop during momentary output short-circuit conditions, connect a capacitor from IN to GND ...
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... LIM BUS Li+ BATTERY CHARGER VBUS OUT GND IN OUT MAX14544 MAX14545 FLAG V CC NOTE: DRIVE ISET HIGH TO HAVE A 400mA CURRENT LIMIT. EN ISET GND DRIVE ISET LOW TO HAVE A 200mA CURRENT LIMIT. For the latest package outline information and land pat- terns www.maxim-ic.com/packages. Note that a “ ...