HV430
Pin Description
VPP1
VPP2
Positive high voltage supply.
Positive gate voltage supply. Generated by an internal linear regulator. A 25V, 100nF capacitor should be
connected between VPP2 and VPP1
Negative high voltage supply.
.
VNN1
VNN2
Negative gate voltage supply. Generated by an internal linear regulator. A 25V, 100nF capacitor should be
connected between VNN2 and VNN1
Logic supply voltage.
.
VDD
SGnd
PGnd
PIN
Low voltage logic ground.
High voltage power ground.
Logic control input. When mode is high, logic input high turns ON the external high voltage P-channel MOSFET.
Internally pulled low.
NIN
Logic control input. When mode is high, logic input high turns ON the external high voltage N-channel MOSFET.
Internally pulled low.
ENABLE
MODE
Logic enable input. Logic high enables IC. Internally pulled low.
Logic mode input. 0=single-control; 1=dual-control. When MODE is high, NIN and PIN independently control NOUT
and POUT, respectively. When MODE is low, NIN controls both outputs in a complementary manner.
(See Truth Table)
FAULT
RESET
Logic output. Fault is at logic low when either current limit sense pin, VPsen or VNsen, is activated. Remains
active until overcurrent condition clears or ENABLE=0 or RESET=0.
Power-on reset. A capacitor connected between this pin and ground determines the delay time between application
of VDD and when the device outputs are enabled. Low leakage tantalum recommended.
DEADBAND A resistor between this pin and ground sets the ‘break-before-make’ time between output transitions. Applicable
only in single-control mode. For minimum deadtime, a 5.6kΩ resistor to ground should be used. For dual-input
mode, tie to Vdd.
VPgate
VNgate
VPsen
VNsen
Gate drive for external P-channel MOSFET.
Gate drive for external N-channel MOSFET.
Pulse by pulse over current sensing for P-Channel MOSFET.
Pulse by pulse over current sensing for N-Channel MOSFET.
Pin Configuration
VDD
1
20
19
18
17
16
15
14
13
12
11
VPP2
2
Fault
VPP1
3
Mode
VPSEN
VPGATE
N/C
4
PIN
5
NIN
6
Enable
Reset
Deadband
SGND
PGND
N/C
7
VNGATE
VNSEN
VNN1
8
9
10
VNN2
top view
SOW 20
12/13/010
1235 Bordeaux Drive, Sunnyvale, CA 94089
TEL: (408) 744-0100 • FAX: (408) 222-4895
www.supertex.com
©2001 Supertex Inc. All rights reserved. Unauthorized use or reproduction prohibited.
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SUPERTEX [ Supertex, Inc ]
