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NCP81063 डेटा पत्रक PDF( Datasheet डाउनलोड )


डेटा पत्रक - Synchronous Buck MOSFET Drivers - ON Semiconductor

भाग संख्या NCP81063
समारोह Synchronous Buck MOSFET Drivers
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NCP81063 pdf
VCC
PWM
NCP81063
BST 1
DRVH
PWM
EN
FLAG
9
SW
GND
VCC
DRVL
(Top View)
Figure 1. Pin Diagram
Logic
Anti−Cross
Conduction
VCC
BST
DRVH
SW
DRVL
EN ZCD
UVLO
Detection
Fault
Pre−OV
Figure 2. Block Diagram
Table 1. Pin Descriptions
Pin No.
Symbol
1 BST
2 PWM
3 EN
4 VCC
5 DRVL
6 GND
7 SW
8 DRVH
9 FLAG
Description
Floating bootstrap supply pin for high side gate driver. Connect the bootstrap capacitor between this pin
and the SW pin.
Control input:
PWM = High DRVH is high, DRVL is low.
PWM = Mid Zero current detect enabled. Diode emulation mode.
PWM = Low DRVH is low, DRVL is high.
3−state input:
EN = High Driver is enabled.
EN = Low Driver is disabled.
Power supply input. Connect a bypass capacitor (0.1 mF) from this pin to ground.
Low side gate drive output. Connect to the gate of low side MOSFET.
Bias and reference ground. All signals are referenced to this node (QFN Flag).
Switch node. Connect this pin to the source of the high side MOSFET and drain of the low side MOSFET.
High side gate drive output. Connect to the gate of high side MOSFET.
Thermal flag. There is no electrical connection to the IC. Connect to ground plane.
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