ZXBM1016 Datasheet | Zetex Semiconductors

High efficiency variable speed single-phase fan motor controller Description The ZXBM1016 is a high efficiency, low noise, single-phase, DC brushless motor pre-driver with PWM variable speed control and current control suitable for fan and blower motors. High efficiency and low noise are achieved using a novel technique (patent pending) for mutation current control. The controllers are primarily intended to meet industry standard OEM fan specifications where external PWM control are applied, however, they can also be used with other thermal control techniques using an external voltage, PWM signal or thermistor. Features - - - - - - - - - - - - pliant with external PWM speed control pliant with thermistor control Minimum speed setting High efficiency utilizing tail-end current control Low noise Auto restart Built in Hall amplifier Hall bias Speed pulse (FG) output Integrated current control Up to 18V input voltage (60V with external regulator) Small TSSOP20 package Applications - - - - Mainframe and personal puter fans and blowers Instrumentation fans Central heating blowers Automotive climate control .. Applications circuit 12V D1 1N4148 VCC C1 1μF Hall H+ H-Bias HR14 47kΩ R12 1kΩ R15 4.7kΩ CONTROL R16 4.7kΩ R13 1kΩ FG 0V Q6 Q5 C4 0.1μF R18 4.7kΩ R10 16kΩ C2 100p F CLCK R11 Range C3 220kΩ 0.47μF CINT Gnd C5 0.47μF R17 10kΩ R9 12kΩ SPD SMIN CPWM Th Ref ZXBM1016 Ph2Hi Ph1Lo Ph2Lo Ph1Hi D2 1N4004 R6 1kΩ R5 100Ω R1 470Ω R2 470Ω R3 2 3 4 3 R4 1kΩ 4 Q1-4 ZXMC 3A17DN8 5&6 7&8 5&6 W1 7 & 8 C6 2.2μF 2 100Ω Set Th Ref R7 Sense 33kΩ Set Th FG R8 470Ω Rsense 0.1Ω 1 1 TSSOP20 Ordering information - TSSOP20 Device ZXBM1016ST20TA ZXBM1016ST20TC Reel size (inches) 7 (180mm) 13 (330mm) Tape width (mm) 16 16 Quantity per reel 1000 2,500 Device marking ZETEX ZXBM1016 Date code Issue 1 - February 2007 © Zetex Semiconductors plc...