A4952ELYTR-T Allegro Microsystems Inc, A4952ELYTR-T Datasheet
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A4952ELYTR-T
Manufacturer Part Number
A4952ELYTR-T
Description
IC PWM MOTOR DVR FULL 10-MSOP
Manufacturer
Allegro Microsystems Inc
Specifications of A4952ELYTR-T
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
with exposed thermal pad
Features and Benefits
• Low R
• Overcurrent protection (OCP)
• Low Power Standby mode
• Adjustable PWM current limit
• Synchronous rectification
• Internal undervoltage lockout (UVLO)
• Crossover-current protection
• Fault output (A4952 only)
• Selectable retry (A4952 only)
Packages:
A4952-DS
▫ Motor short protection
▫ Motor lead short to ground protection
▫ Motor lead short to battery protection
8-pin SOICN
(LJ package)
DS(on)
outputs
A4952 only
A4952 only
RTRY
FLTn
VREF
GND
IN1
IN2
V
INT
with exposed thermal pad
÷
Not to scale
10
10-pin MSOP
(LY package)
Functional Block Diagram
Full-Bridge DMOS PWM Motor Drivers
Control
Logic
Disable
OSC
Description
Designed for pulse width modulated (PWM) control of DC
motors, the A4952 and A4953 are capable of peak output
currents to ±2 A and operating voltages to 40 V.
Input terminals are provided for use in controlling 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 overcurrent protection,
motor lead short to ground or supply, thermal shutdown with
hysteresis, undervoltage monitoring of V
current protection.
The A4952 is provided in a low-profile 10-pin MSOP package
(suffix LY) and the A4953 is provided in a low-profile
8-pin SOICN package. Both packages have an exposed
thermal pad, and are lead (Pb) free, with 100% matte tin
leadframe plating.
UVLO
TSD
Charge
Pump
7V
A4952 and A4953
Load Supply
OUT1
OUT2
VBB
LSS
(Optional)
BB
, and crossover-