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RT9625A Datasheet(PDF) 2 Page - Richtek Technology Corporation |
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RT9625A Datasheet(HTML) 2 Page - Richtek Technology Corporation |
2 / 14 page RT9625A 2 DS9625A-02 September 2012 www.richtek.com © Copyright 2012 Richtek Technology Corporation. All rights reserved. is a registered trademark of Richtek Technology Corporation. Function Pin Description Pin No. Pin Name Pin Function 1 BOOT2 8 BOOT1 Bootstrap Power Pins for Channel 2 and Channel 1. This pin powers the high side MOSFET driver. Connect this pin to the junction of the bootstrap capacitor and the cathode of the bootstrap diode. 2, 13 (Exposed Pad) GND Ground. The exposed pad must be soldered to a large PCB and connected to GND for maximum power dissipation. 3 PWM2 6 PWM1 PWM Signal Input. Connect this pin to the PWM output of the controller. 4 EN2 5 EN1 Chip Enable. When this pin is low, both UGATEx and LGATEx are driven to low. 7 POR Power On Reset Signal. 9 UGATE1 16 UGATE2 High Side Gate Drive Outputs for channel 1 and channel 2. Connect this pin to Gate of high side power MOSFET. 10 PHASE1 15 PHASE2 Switch Nodes of High Side Driver 1 and Driver 2. Connect this pin to the high side MOSFET Source together with the low side MOSFET Drain and the inductor. 11 LGATE1 14 LGATE2 Low Side Gate Drive Output for Channel 1 and Channel 2. This pin drives the Gate of low side MOSFET. 12 VCC Supply Input. VCC supplies current for Channel 1 and Channel 2 gate drivers. Ordering Information Note : Richtek products are : RoHS compliant and compatible with the current require- ments of IPC/JEDEC J-STD-020. Suitable for use in SnPb or Pb-free soldering processes. (TOP VIEW) WQFN-16L 4x4 Pin Configurations Lead Plating System Z : ECO (Ecological Element with Halogen Free and Pb free) RT9625A Package Type QW : WQFN-16L 4x4 (W-Type) BOOT2 GND PWM2 EN2 VCC LGATE1 UGATE1 PHASE1 1 2 3 4 56 7 8 12 11 10 9 13 16 14 15 17 GND |
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