поискавой системы для электроныых деталей |
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BAT54 датащи(PDF) 4 Page - Fairchild Semiconductor |
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BAT54 датащи(HTML) 4 Page - Fairchild Semiconductor |
4 / 19 page © 2002 Fairchild Semiconductor Corporation www.fairchildsemi.com FAN5236 • Rev. 1.3.2 4 Pin Descriptions (Continued) Pin # Name Description 13 DDR DDR Mode Control . HIGH = DDR Mode. LOW = two separate regulators operating 180° out of phase. 14 VIN Input Voltage . Normally connected to battery, providing voltage feedforward to set the amplitude of the internal oscillator ramp. When using the IC for two-step conversion from 5V input, connect through 100K Ω resistor to ground, which sets the appropriate ramp gain and synchronizes the channels 90° out of phase. 15 PG1 Power Good Flag . An open-drain output that pulls LOW when VSEN is outside 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). |
Аналогичный номер детали - BAT54 |
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Аналогичное описание - BAT54 |
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