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AP3039 Datasheet(PDF) 2 Page - BCD Semiconductor Manufacturing Limited |
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AP3039 Datasheet(HTML) 2 Page - BCD Semiconductor Manufacturing Limited |
2 / 16 page BOOST CONTROLLER AP3039 Preliminary Datasheet 2 BCD Semiconductor Manufacturing Limited May 2008 Rev. 1. 0 Pin Description Pin Number Pin Name Function 1 EN Enable pin 2 VIN Input supply pin, must be locally bypassed 3, 12 NC No connection 4VCC 6V linear regulator output pin. VCC is used to bias the gate driver for the external MOSFET. If VIN is less than 8.5V, the VCC is equal to VIN minus drop voltage across bypass switch. This pin should be bypassed to GND (recommend to connect with AGND pin) with a ceramic capacitor 5 OUT Connect this pin to the gate of external MOSFET, the gate driver has 0.6A peak current capa- bility 6 PGND Power ground 7 RT An external resistor connected from this pin to GND to set the operating frequency 8 CS Sense switch current pin, which is used for current mode control and for current limit 9 AGND Reference ground 10 SHDN This pin can be connected to current matched chip and receives error signal used to shut down the system 11 FB Voltage Feedback Pin. The reference voltage is 500mV 13 COMP Compensation Pin. This pin is the output of the internal Error Amplifier Figure 2. Pin Configuration of AP3039 (Top View) Pin Configuration (QFN-3x3-16) NC AGND OUT PGND FN Package VIN RT VCC SHDN SS UVLO EN OV FB NC COMP CS E P 56 7 8 13 14 15 16 1 2 3 49 10 11 12 Pin 1 Identification Exposed PAD |
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