ES211

Datasheet 2 Phase DC Motor Drive IC ES211 1. Description The ES211, a 1-chip composed of hall sensor and output coil drivers, applied to 2-phase DC motor. The high sensitivity of Hall Effect sensor is suitable for motors from mini-type CPU coolers to blowers and DC fans. The device also include an amplifier that amplifies the Hall voltage, and a Schmitt trigger to provide switching hysteresis for noise rejection, and complementary open-collector drivers for sinking large current loads. An internal bandgap regulator is used to provide temperature compensated supply voltage for internal circuits and allows a wide operating supply voltage. Typical operation current is 0.3A and operating voltage range is wide. FG single, an open collector, provides a square waveform output for the detection of the motor speed. 2. Features  1 chip hall sensor/drivers  Wide operating voltage range: 4V~20V  Output sink current up to 0.35A  Low quiescent supply current under 5mA  Built-in FG output  Package: TO-94 3. Typical Application Circuit 211 yww ©2009-2014 Innosen Technology Co., Ltd. Rev3.0. 4.140108 www.innosensor.com 1/9 2 Phase DC Motor Drive IC 4. Functional Block Diagram Datasheet ES211 Regulator Hall Sensor Pre-driver AMP 4 1 5. Pin Definitions and Descriptions Name FG NO SO GND No. 1 2 3 4 Status O O/P O/P Description Frequency output Output Pin of N pole Output Pin of S pole Ground Pin 2 3 211 yww ©2009-2014 Innosen Technology Co., Ltd. Rev3.0. 4.140108...