DRV8837_15 Datasheet, PDF (1/24 Pages) Texas Instruments – Low-Voltage H-Bridge Driver

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DRV8837, DRV8838
SLVSBA4D – JUNE 2012 – REVISED DECEMBER 2015
DRV883x Low-Voltage H-Bridge Driver
1 Features
•1 H-Bridge Motor Driver
– Drives a DC Motor or Other Loads
– Low MOSFET On-Resistance: HS + LS
280 mΩ
• 1.8-A Maximum Drive Current
• Separate Motor and Logic Supply Pins:
– Motor VM: 0 to 11 V
– Logic VCC: 1.8 to 7 V
• PWM or PH-EN Interface
– DRV8837: PWM, IN1 and IN2
– DRV8838: PH and EN
• Low-Power Sleep Mode With 120-nA Maximum
Sleep Current
– nSLEEP pin
• Small Package and Footprint
– 8-Pin WSON With Thermal Pad
– 2.0 × 2.0 mm
• Protection Features
– VCC Undervoltage Lockout (UVLO)
– Overcurrent Protection (OCP)
– Thermal Shutdown (TSD)
2 Applications
• Cameras
• DSLR Lenses
• Consumer Products
• Toys
• Robotics
• Medical Devices
3 Description
The DRV883x family of devices provides an
integrated motor driver solution for cameras,
consumer products, toys, and other low-voltage or
battery-powered motion control applications. The
device can drive one dc motor or other devices like
solenoids. The output driver block consists of N-
channel power MOSFETs configured as an H-bridge
to drive the motor winding. An internal charge pump
generates needed gate drive voltages.
The DRV883x family of devices can supply up to
1.8 A of output current. It operates on a motor power
supply voltage from 0 to 11 V, and a device power
supply voltage of 1.8 V to 7 V.
The DRV8837 device has a PWM (IN1-IN2) input
interface; the DRV8838 device has a PH-EN input
interface. Both interfaces are compatible with
industry-standard devices.
Internal shutdown functions are provided for
overcurrent protection, short-circuit protection,
undervoltage lockout, and overtemperature.
Device Information⁽¹⁾
PART NUMBER
PACKAGE
BODY SIZE (NOM)
DRV8837
DRV8838
WSON (8)
2.00 mm × 2.00 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
DRV883x Simplified Diagram
1.8 V to 7 V
V_CC
0 V to 11 V
VM
PWM
or
PH and EN
DRV8837 and
DRV8838
nSLEEP
Brushed DC Motor
Driver
1.8 A
M
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.