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FAN5236MTC Folha de dados(PDF) 4 Page - Fairchild Semiconductor |
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FAN5236MTC Folha de dados(HTML) 4 Page - Fairchild Semiconductor |
4 / 20 page PRODUCT SPECIFICATION FAN5236 4 REV. 1.1.7 4/4/03 Absolute Maximum Ratings Absolute maximum ratings are the values beyond which the device may be damaged or have its useful life impaired. Functional operation under these conditions is not implied. Recommended Operating Conditions Note 1: Industrial temperature range (–40 to + 85°C) may be special ordered from Fairchild. Please contact your authorized Fairchild representative for more information. 14 VIN Input Voltage. Normally connected to battery, providing voltage feed-forward to set the amplitude of the internal oscillator ramp. When using the IC for 2-step conversion from 5V input, connect through 100K to ground, which will set the appropriate ramp gain and synchronize the channels 90˚ out of phase. 15 PG1 Power Good Flag. An open-drain output that will pull LOW when VSEN is outside of a ±10% range of the 0.9V reference. 16 PG2 / REF2OUT Power Good 2. When not in DDR Mode: Open-drain output that pulls LOW when the VOUT is out of regulation or in a fault condition Reference Out 2. When in DDR Mode, provides a buffered output of REF2. Typically used as the VDDQ/2 reference. 18 ILIM2 / REF2 Current Limit 2. When not in DDR Mode, A resistor from this pin to GND sets the current limit. Reference for reg #2 when in DDR Mode. Typically set to VOUT1 / 2. 28 VCC VCC. This pin powers the chip as well as the LDRV buffers. The IC starts to operate when voltage on this pin exceeds 4.6V (UVLO rising) and shuts down when it drops below 4.3V (UVLO falling). Parameter Min. Typ. Max. Units VCC Supply Voltage: 6.5 V VIN 27 V BOOT, SW, ISNS, HDRV 33 V BOOTx to SWx 6.5 V All Other Pins –0.3 VCC+0.3 V Junction Temperature (TJ ) –40 150 °C Storage Temperature –65 150 °C Lead Soldering Temperature, 10 seconds 300 °C Parameter Conditions Min. Typ. Max. Units Supply Voltage VCC 4.75 5 5.25 V Supply Voltage VIN 24 V Ambient Temperature (TA ) Note 1 –10 85 °C Pin Definitions (continued) |
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