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NCP81146MNTBG डेटा पत्रक PDF( Datasheet डाउनलोड )


डेटा पत्रक - VR12.5 Compatible Synchronous Buck MOSFET Driver - ON Semiconductor

भाग संख्या NCP81146MNTBG
समारोह VR12.5 Compatible Synchronous Buck MOSFET Driver
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NCP81146MNTBG pdf
VCC
PWM
NCP81146
BST 1
DRVH
PWM
EN
FLAG
9
SW
GND
VCC
DRVL
(Top View)
Figure 1. Pin Diagram
Logic
AntiCross
Conduction
VCC
BST
DRVH
SW
DRVL
EN ZCD
UVLO
Detection
Fault
PreOV
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. The PWM signal has three distinctive states: Low = Low Side FET Enabled, Mid = Diode
Emulation Enabled, High = High Side FET Enabled.
Logic input. A logic high to enable the part and a logic low to disable the part.
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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NCP81146MNTBGVR12.5 Compatible Synchronous Buck MOSFET DriverON Semiconductor
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