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MC34652EFR2 Datasheet(PDF) 3 Page - Freescale Semiconductor, Inc |
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MC34652EFR2 Datasheet(HTML) 3 Page - Freescale Semiconductor, Inc |
3 / 26 page Analog Integrated Circuit Device Data Freescale Semiconductor 3 34652 PIN CONNECTIONS PIN CONNECTIONS Figure 3. 16-SOICN Pin Connections Table 1. 16-SOICN Pin Definitions A functional description of each pin can be found in the FUNCTIONAL PIN DESCRIPTION section beginning on page 10. Pin Pin Name Formal Name Definition 1, 8, 9, 16 VIN Negative Supply Input Voltage This is the most negative power supply input. All pins except DISABLE are referenced to this input. 2 PG Power Good Output (Active High) This is an active high power good output signal. This pin is referenced to VIN. 3 PG Power Good Output (Active Low) This is an active low power good output signal. This pin is referenced to VIN. 4, 5 VOUT Output Voltage This pin is the drain of the internal Power MOSFET and supplies a current limited voltage to the load. 6 TIMER Start-Up and Retry Delay Timer This input is used to control the time base used to generate the timing sequences at start-up and the retry delay when the device experiences any fault. 7 NC No Connect Not connected. 10 OV Overvoltage Control This pin is used to set the upper limit of the input voltage operation range. 11 UV Undervoltage Control This pin is used to set the lower limit of the input voltage operation range. 12 VPWR Positive Supply Input Voltage This is the most-positive power supply input. The load connects between this pin and the VOUT pin. 13 DISABLE Disable Input Control This pin is used to easily disconnect or connect the load from the main power line by disabling or enabling the 34652. It can also be used to reset the fault conditions that cause a “Power No Good” signal. This pin is referenced to VPWR. 14 ILIM Current Limit Control This pin is used to set the overcurrent limit during normal operation. 15 ICHG Charging Current Limit Control This pin is used to set the load’s input capacitor charging current limit, hence limiting the inrush current to a known constant value. VIN VIN ICHG ILIM DISABLE VPWR OV UV VIN VIN PG PG VOUT VOUT NC TIMER 8 2 3 4 5 7 6 9 16 15 14 13 12 10 11 1 |
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