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A3950SLPTR-T Datasheet

  • A3950SLPTR-T

  • DMOS Full-Bridge Motor Driver

  • 9頁

  • ALLEGRO   ALLEGRO

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Preliminary Data Sheet
Subject to Change without Notice
November 4, 2005
A3950
DMOS Full-Bridge Motor Driver
Designed for PWM (pulse width modulated) control of dc motors, the
A3950 is capable of peak output currents to 鹵2.8 A and operating volt-
ages to 36 V.
PHASE and ENABLE input terminals are provided for use in control-
ling the speed and direction of a dc motor with externally applied PWM
control signals. Internal synchronous rectification control circuitry is
provided to lower power dissipation during PWM operation.
Internal circuit protection includes motor lead short-to-supply / short-to-
ground, thermal shutdown with hysteresis, undervoltage monitoring of
V
BB
and V
CP
, and crossover-current protection.
The A3950 is supplied in a thin profile (<1.2 mm overall height) 16-pin
TSSOP package with exposed thermal pad (package LP). It is lead (Pb)
free with 100% matte tin leadframe plating.
Package LP, 16-pin TSSOP
with Exposed Thermal Pad
NFAULT 1
MODE 2
PHASE 3
GND 4
SLEEP 5
ENABL 6
OUTA 7
SENSE 8
Fault
16 NC
15 VREG
14 VCP
Control
Logic
Charge
Pump
13 GND
12 CP2
11 CP1
10 OUTB
9
VBB
FEATURES
Approximate Scale 1:1
Low R
DS(on)
outputs
Overcurrent protection
Motor lead short-to-supply protection
Short-to-ground protection
Sleep function
Synchronous rectification
Diagnostic output
Internal UVLO
Crossover-current protection
ABSOLUTE MAXIMUM RATINGS
Load Supply Voltage, V
BB.............................................
36 V
Output Current, I
OUT.......................................................
2.8 A
Sense Voltage, V
SENSE
.................................鹵500
mV
VBB to OUTx ....................................................
36 V
OUTx to SENSE ................................................
36 V
Logic Input Voltage, V
IN
..........................鈥?.3
to 7 V
Operating Temperature Range
Ambient, T
A
, Range S ....................
鈥?0擄C to 85擄C
Junction Temperature, T
J(MAX)
............................
150擄C
Storage Temperature, T
S
.................
鈥?0擄C to 125擄C
Use the following complete part numbers when ordering:
Part Number
A3950SLP-T
A3950SLPTR-T
Packing
96 pieces / tube
13-in. reel, 4000 pieces / reel
A3950DS

A3950SLPTR-T 產(chǎn)品屬性

  • 1

  • 集成電路 (IC)

  • PMIC - 電機(jī)和風(fēng)扇控制器，驅(qū)動器

  • -

  • PWM 電機(jī)驅(qū)動器

  • -

  • 1

  • ±2.8A

  • -

  • 8 V ~ 36 V

  • -20°C ~ 85°C

  • 表面貼裝

  • 16-TSSOP（0.173"，4.40mm）裸露焊盤

  • 16-TSSOP-EP

  • Digi-Reel®

  • 620-1297-6

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