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A3946KLP Datasheet(PDF) 10 Page - Allegro MicroSystems

Part # A3946KLP
Description  Half-Bridge Power MOSFET Controller
Download  14 Pages
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Manufacturer  ALLEGRO [Allegro MicroSystems]
Direct Link  http://www.allegromicro.com
Logo ALLEGRO - Allegro MicroSystems

A3946KLP Datasheet(HTML) 10 Page - Allegro MicroSystems

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10
Worcester, Massachusetts 01615-0036 (508) 853-5000
115 Northeast Cutoff, Box 15036
www.allegromicro.com
3946
Half-Bridge Power MOSFET Controller
VREG
+VBAT
+5 Vref
Charge
Pump
BOOT
GH
S
GL
LGND
VREG
CP1
CP2
Charge
Pump
RESET
Protection
VREG Undervoltage
Overtemperature
UVLOBOOT
IN2
~FAULT
DT
Control
Logic
Turn-On
Delay
IN1
VREF
Bootstrap
UVLO
10
k
C
REG
C1
0.47 µF
R
GATE
R
GATE
I
LIM
High Side
Driver
Low Side
Driver
C2
10 µF
0.1 uF
VREF
10 µF
IRF2807
IRF2807
33
33
External
+5 V
Slow
Decay
Forward
VREF
Forward
Slow
Decay
DC Motor #1
DC Motor #2
200
k
200
k
PGND
DC Motor
#2
M
DC Motor
#1
M
P
L
P
L
P
L
L
L
L
P
P
L
P
P
Diagram C. Independent drivers. Two low-side drives.


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