A3910EEETR-T

A3910 Dual Half Bridge Motor Driver Description Features and Benefits Low R outputs DS(on) The A3910 is a dual half bridge motor driver, designed for Standby mode with zero current drain low cost, low voltage battery operated power applications. Small 2 2 DFN package The outputs are rated for operation up to 500 mA. Crossover Current protection Direct control of high- and low-side drivers is implemented Thermal Shutdown protection 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. Package: 8-contact DFN with Exposed Thermal Pad (suffix EE) Not to scale Typical Application Diagram V V SUPPLY SUPPLY A3910 A3910 System System Controller Controller M M M M (A) Connection to Supply (B) Connection to Ground A3910-DS, Rev. 1A3910 Dual Half Bridge Motor Driver Selection Guide Part Number Packing* Package 8-contact DFN A3910EEETR-T 3000 pieces per 7-in. reel with exposed thermal pad *Contact Allegro for additional packing options. Absolute Maximum Ratings* Characteristic Symbol Notes Rating Unit Supply Voltage V 0.3 to 5.5 V BB Logic Input Voltage Range V 0.3 to 6 V IN Output Current I 500 mA OUT Output Voltage V 0.3 to V + 1 V OUT BB Operating Ambient Temperature T E temperature range 40 to 85 C A Maximum Junction Temperature T (max) 150 C J Storage Temperature T 55 to 150 C stg Thermal Characteristics may require derating at maximum conditions, see application information Characteristic Symbol Test Conditions* Value Unit On 4-layer PCB based on JEDEC standard 49 C/W R Package Thermal Resistance JA 2 On 2-layer PCB based with 0.23 in. exposed 92 C/W copper each side *Additional thermal information available on the Allegro website. Terminal List Table Number Name Function 1 HIN1 Logic input Pin-out Diagram 2 LIN1 Logic input HIN1 1 8 OUT1 3 LIN2 Logic input LIN1 2 7 VBB PAD 4 HIN2 Logic input LIN2 3 6 GND HIN2 5 OUT2 Motor terminal 4 5 OUT2 6 GND Ground 7 VBB Input Supply 8 OUT1 Motor terminal Allegro MicroSystems, LLC 2 115 Northeast Cutoff Worcester, Massachusetts 01615-0036 U.S.A. 1.508.853.5000 www.allegromicro.com