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MIC4609 Datasheet(PDF) 14 Page - Microchip Technology

Part # MIC4609
Description  600V 3-Phase MOSFET/IGBT Driver
PDF  34 Pages
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Manufacturer  MICROCHIP [Microchip Technology]
Direct Link  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

MIC4609 Datasheet(HTML) 14 Page - Microchip Technology

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MIC4609
DS20005531A-page 14
 2016 Microchip Technology Inc.
3.0
PIN DESCRIPTIONS
The descriptions of the pins are listed Table 3-1.
TABLE 3-1:
PIN FUNCTION TABLE
SOICW-28LD
Symbol
I/O
Description
1VDD
Power Input Supply for Gate Drivers
Decouple this pin to VSS with a > 2.2 µF capacitor.
Connect anode of bootstrap diodes to this pin.
2
AHI
IN
A-Phase High-Side Drive Input
3
BHI
IN
B-Phase High-Side Drive Input
4
CHI
IN
C-Phase High-Side Drive Input
5
ALI
IN
A-Phase Low-Side Drive Input
6
BLI
IN
B-Phase Low-Side Drive Input
7
CLI
IN
C-Phase Low-Side Drive Input
8FAULT
OUT
Fault Output
Open drain asserts low to indicate Overcurrent or VDD Undervoltage condition.
9
ISNS
IN
Current Sense Input for Overcurrent Shutdown
10
EN
IN
Enable Input
Logic high on the Enable pin results in normal operation.
Logic low forces the device to enter Shutdown mode.
11
RCIN
OUT
Overcurrent Fault Clear Delay Pin
Connect to an external capacitor to set the fault clear delay.
12
VSS
GND
Logic Ground Pin
13
COM
—
Low-Side Driver Return Pin
14
CLO
OUT
C-Phase Low-Side Drive Output
Connect to the gate of the external low-side power MOSFET or IGBT.
15
BLO
OUT
B-Phase Low-Side Drive Output
Connect to the gate of the external low-side power MOSFET or IGBT.
16
ALO
OUT
A-Phase Low-Side Drive Output
Connect to the gate of the external low-side power MOSFET or IGBT.
17, 21, 25
NC
—
No Connect
18
CHS
—
C-Phase High-Side Drive Return Connection
Connect to the emitter or source of the external high-side power device.
Connect the bootstrap capacitor between this pin and the CHB pin.
19
CHO
OUT
C-Phase High-Side Drive Output
Connect to the gate of the external high-side power MOSFET or IGBT.
20
CHB
Power C-Phase High-Side Bootstrap Supply
External bootstrap capacitor is required.
Connect the bootstrap capacitor between this pin and CHS.
Connect to the anode of the external bootstrap diode.
22
BHS
—
B-Phase High-Side Drive Return Connection
Connect to the emitter or source of the external high-side power device.
Connect the bootstrap capacitor between this pin and the BHB pin.
23
BHO
OUT
B-Phase High-Side Drive Output
Connect to the gate of the external high-side power MOSFET or IGBT.



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