A3910_16 Datasheet, PDF (1/7 Pages) Allegro MicroSystems – Dual Half Bridge Motor Driver

A3910
Dual Half Bridge Motor Driver
Features and Benefits
• Low R_DS(on) outputs
• Standby mode with zero current drain
• Small 2 × 2 DFN package
• Crossover Current protection
• Thermal Shutdown protection
Package: 8-contact DFN with Exposed
Thermal Pad (suffix EE)
Description
The A3910 is a dual half bridge motor driver, designed for
low cost, low voltage battery operated power applications.
The outputs are rated for operation up to 500 mA.
Direct control of high- and low-side drivers is implemented
to allow either high-side or low-side PWM. The motor can
be connected to either supply or GND. Using a MOS switch
results in improved braking action for the motor, compared to
implementation with simple clamp diode.
The A3910 is supplied in a 2 mm × 2 mm 8-contact DFN
package (EE) with exposed thermal pad. The package is lead
(Pb) free, with 100% matte tin leadframe plating.
Not to scale
Typical Application Diagram
System
Controller
A3910
V_SUPPLY
System
Controller
M
A3910
V_SUPPLY
M
M
(A) Connection to Supply
M
(B) Connection to Ground
A3910-DS, Rev. 1