APX9781

APX9781 Single-Phase digital calibration Motor Pre-Driver for Fan Motor Features General Description Single Phase Fan Pre-Driver The APX9781 is a single phase full wave DC brushless Easy digital programming (EDP.) Built-in direct PWM input terminal motor driver with variable speed control that works with a speed feedback signal and current limit features suitable for the fan of server system and high power cooling Built-in soft start function fan.APX9781 currect protection can be set via digital programming. Multi PWM curve, soft start, output signal, Multi Signal Output for SOUT (FG,RD,FG+RD,Low the lock protection.The APX9781 is available in TSSOP- RPM Alarm ) 16 package (see Pin Configuration).Using digital cali- Built-in Current Limit bration (OTP), the design speed curve for more easily. LDO 5V output Low Quiescent Current Built-in Lock Protection and Auto Restart Function Thermal shut down circuit Lead Free and Green Device Available (RoHS Compliant) Pin Configuration Applications CPU And Server Cooling Fans Variable Speed Control Fans OUT2P 1 OUT2N 2 VCC 3 VLIM 4 NC 5 5VREG 6 PWM 7 SOUT 8 TSSOP-16 16 OUT1P 15 OUT1N 14 SENSE 13 GND 12 NC 11 IN+ 10 HB 9 IN- ANPEC reserves the right to make changes to improve reliability or manufacturability without notice, and advise customers to obtain the latest version of relevant information to verify before placing orders. Copyright © ANPEC Electronics Corp. 1 Rev. A.2 - Nov., 201...