ZXBM1004 VARIABLE SPEED SINGLE-PHASE BLDC MOTOR CONTROLLER DESCRIPTION The ZXBM1004 is a single-phase, DC brushless motor pre-driver with PWM variable speed control suitable for fan and blower motors. The controller is intended for applications where the fan or blower speed is controlled by an external PWM signal, thermistor or DC voltage. FEATURES Compliant with external PWM speed control Compliant with thermistor control Minimum speed setting Low noise Auto restart Built in hall amplifier Speed pulse (FG) and lock rotor (RD) outputs Up to 18V input voltage (60V with external regulator) QSOP16 package Associated application notes:- AN41 - Thermistor control AN42 - External PWM control AN43 - Interfacing to the motor windings APPLICATIONS Mainframe and personal computer fans and blowers Instrumentation fans Central heating blowers Automotive climate control ORDERING INFORMATION - QSOP16 REEL SIZE TAPE WIDTH QUANTITY PER REEL DEVICE 7 (180mm) 12mm 500 ZXBM1004Q16TA ZXBM1004Q16TC 13 (330mm) 12mm 2,500 DEVICE MARKING ZETEX ZXBM 1004 ISSUE 6 - MAY 2007 1 SEMICONDUCTORS QSOP16ZXBM1004 ABSOLUTE MAXIMUM RATINGS PARAMETER SYMBOL LIMITS UNIT Supply voltage V -0.6 to 20 V CCmax Input current I 200 mA CCmax -0.5 to V +0.5 V Input voltage V max CC IN -0.5 to V +0.5 V Output voltage V max CC OUT Power dissipation P 500 mW Dmax Operating temp. T -40 to 110 C OPR Storage temp. T -55 to 150 C STG Power Dissipation and P is power generated due to either one of PhLo the phase outputs Ph1Lo or Ph2Lo being 1) Maximum allowable Power Dissipation, P , D active, given by: is shown plotted against Ambient Temperature, T , in the accompanying Power Derating Curve, A indicating the Safe Operating Area for the device. P = I x (V - V ) PhLo OH CC OH 2) Power consumed by the device, P , can be T where I is the application Ph1Lo and Ph2Lo OH calculated from the equation: output currents and Vcc is the application device Supply P = P + P + P T Q PhHi PhLo Voltage and V is the minimum High Level OH where P is power dissipated under quiescent Q Output Voltage for the Ph1Lo and current conditions, given by: Ph2Lo outputs given in the Electrical Characteristics P = Vcc x Icc Q where Vcc is the application device Supply Voltage and Icc is the maximum Supply Current given in the Electrical Characteristics and P is power generated due to either one of PhHi the phase outputs Ph1Hi or Ph2Hi being active, given by: P = I x V PhHi OL OL where I is the application Ph1Hi and Ph2Hi OL output currents and V is the maximum Low Level OL Output Voltage for the Ph1Hi and Ph2Hi outputs given in the Electrical Characteristics ISSUE 6 - MAY 2007 2 SEMICONDUCTORS