SDC276

Switch Hall IC Datasheet SDC276 General Description Features The SDC276 is an integrated circuit which includes Hall Tsensor and output drive circuits. It’s widely used in 2-phase brushless DC motor and fan. It’s composed of Npower reverse protection circuit, high stable voltage Eregulator, Hall voltage generator, a differential amplifier, Schmitt trigger and open collector output (DO, DOB). MIn the case of power supply reverse connecting, the Uinternal protection diode can protect IC but not protect OCcoil, a protection diode can be added if necessary.  Wide operating voltage range: 3.5V~20V  300mA(AVG) output sink current  Building-in protection diode  Operating temperature range: -20°C~85°C  Package: TO-94 Applications  Brushless DC motor  Brushless DC fan  Revolution counting  Speed measurement CONFIDENTIAL DTO-94 SDC Figure 1. Package Type August, 2014 Rev. 1.3 ©2014 Shaoxing Devechip Microelectronics Co., Ltd. 1/8 www.sdc-semi.com Switch Hall IC Datasheet SDC276 Pin Configuration DOCUMENTPin Number L1 2 IA3 T4 IDENFunctional Block Diagram Package: TO-94 1.VDD 2.DO 3.DOB 4.GND 123 4 Figure 2. Pin Configuration Pin Name VCC DO DOB GND Table 1. Pin Description CONFREG Function Supply voltage pin Output 2 pin Output 3 pin Ground pin DO SDC AMP DOB VCC GND Figure 3. Functional Block Diagram August, 2014 Rev. 1.3 ©2014 Shaoxing Devechip Microelectronics Co., Ltd. 2/8 www.sdc-semi.com Switch Hall IC Datasheet SDC276 Ordering Information Pa...