SDC477

Switch Hall IC Datasheet SDC477 General Description Features The SDC477, is an integrated Hall sensor with H-bridged Toutput driver designed for brushless DC motor applications. The high sensitivity of Hall-effect sensor is Nsuitable for motors from mini-type CPU coolers to Eblowers and DC fans. Typical operation current is 250mA OCUMand operating voltage range is wide.  One-chip hall sensor  Wide operating voltage range: 3.8V~20V  Output sink current up to 250mA  Output thermal shutdown protection  Package : TO-94 Applications  Brushless DC motor  Brushless DC fan  Revolution counting  Speed measurement FIDENTIAL DTO-94 CON Figure 1. Package Type SDC December, 2013 Rev. 1. 2 ©2013 Shaoxing Devechip Microelectronics Co., Ltd. 1/8 www.sdc-semi.com Switch Hall IC Datasheet SDC477 Pin Configuration Package: TO-94 1.VDD T2.DO 3.DOB N4.GND OCUMEPin Number 1 D2 L3 IA4 NTFunctional Block Diagram 123 4 Figure 2. Pin Configuration Pin Name VCC DO DOB ...