A3946KLP Allegro Microsystems Inc, A3946KLP Datasheet - Page 10
A3946KLP
Manufacturer Part Number
A3946KLP
Description
IC CTRLR MOSFET 16-TSSOP
Manufacturer
Allegro Microsystems Inc
Datasheet
1.A3946KLPTR-T.pdf
(14 pages)
Specifications of A3946KLP
Applications
DC Motor Controller, Brushless (BLDC), 3 Phase
Number Of Outputs
1
Voltage - Supply
7 V ~ 60 V
Operating Temperature
-40°C ~ 135°C
Mounting Type
Surface Mount
Package / Case
16-TSSOP Exposed Pad, 16-eTSSOP, 16-HTSSOP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Current - Output
-
Voltage - Load
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
A3946KLPTR-T
Manufacturer:
ALLEGRO/雅丽高
Quantity:
20 000
A3946
Diagram B. Independent drivers. One high-side drive and one low-side drive.
Forward
Forward
VREF
DC Motor #1
DC Motor #2
Decay
Slow
External
Decay
Slow
+5 V
k
10
VREF
L
~FAULT
RESET
0.1 uF
VREF
IN2
DT
IN1
L
L
L
P
C2
10 μF
+5 Vref
L
Protection
VREG Undervoltage
Overtemperature
UVLOBOOT
Turn-On
Delay
VBB
P
Control
Logic
CP
2
Charge
Pump
Charge Pump
C1
0.47 μF
Bootstrap
Top-Off
Half-Bridge Power MOSFET Controller
UVLO
CP1
High Side
Low Side
Driver
Driver
I
LIM
P
VREG
L
GH
VREG
BOOT
GL
LGND
S
PGND
0.47 μF
L
C
33
R
BOOT
GATE
115 Northeast Cutoff
1.508.853.5000; www.allegromicro.com
Allegro MicroSystems, Inc.
Worcester, Massachusetts 01615-0036 U.S.A.
P
IRF2807
C
10 μF
REG
DC Motor #1
470
k
M
+VBAT
P
R
DC Motor #2
33
GATE
P
IRF2807
470
k
M
10