ZXBM1004 Diodes, Inc., ZXBM1004 Datasheet
ZXBM1004
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ZXBM1004 Summary of contents
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... 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. ...
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... ZXBM1004 ABSOLUTE MAXIMUM RATINGS PARAMETER Supply voltage Input current Input voltage Output voltage Power dissipation Operating temp. Storage temp. Power Dissipation 1) Maximum allowable Power Dissipation shown plotted against Ambient Temperature the accompanying Power Derating Curve, A indicating the Safe Operating Area for the device. ...
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... OThRef -0.25 -0.5 I ISMIN 1 V SPDL 3 V SPDH -0 ISPD - LCKC 0.2 0.35 I LCKD 3 V THH 1 V THL 1: 0 ZXBM1004 UNIT CONDITIONS V ( load mV diff p =80mA OH ( =16mA =100mA kHz C =0 ...
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... ZXBM1004 Block diagram Pin assignments V+OP Vcc 1 H+ Ph1Lo H- Ph2Lo ZXBM1004 ThRef Ph2Hi QSOP16 Ph1Hi SPD S FG MIN RD C PWM C Gnd LCK 4 ISSUE 6 - MAY 2007 ...
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... THH THL T PWM I PWMC Where PWM threshold voltages I PWMC discharge currents PWM 5 ZXBM1004 resistor ) is determined by the PWM − THH THL I PWMD +15 and V are the C pin and I ...
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... ZXBM1004 As these threshold voltages are nominally set and the equations can be simplified as THL follows PWM I I PWMC PWMD C - Locked rotor timing capacitor LCK Should the fan stop rotating for any reason, i.e. an obstruction in the fan blade or a seized bearing, then the device will enter a Rotor Locked condition ...
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... T Off RD FG Applications Information The ZXBM1004 is primarily controlled by a voltage on the SPD pin. A voltage of 1V represents a 100% PWM at the Phase Outputs and in turn represents full speed the SPD pin conversely represents 0% PWM. The motor can therefore be controlled simply by applying a control voltage onto the SPD pin with the minimal use of external components ...
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... ZXBM1004 Figure 1: Typical circuit for thermistor controlled speed Figure 2: Typical circuit for external PWM controlled speed ISSUE 6 - MAY 2007 8 ...
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... Figure 3: Typical circuit for 48V input and external PWM control Figure 4: Typical circuit for constant speed operation ISSUE 6 - MAY 2007 ZXBM1004 ...
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... ZXBM1004 Drive transisitors Zetex offers a range of devices that are ideally suited to interface between the ZXBM1004 controller and the motor. The following tables show a selection of products ranging from single packaged H-bridge devices to individual power components that can be used in this application. If your needs are not covered ...
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... However, changes to specifications may occur, at any time and without notice. ISSUE 6 - MAY 2007 ZXBM1004 ...
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... ZXBM1004 PACKAGE OUTLINE QSOP16 Note: Dimensions in inches are control dimensions, dimensions in millimeters are approximate. © Zetex Semiconductors plc 2007 Europe Americas Zetex GmbH Zetex Inc Kustermann-Park 700 Veterans Memorial Hwy Balanstraße 59 Hauppauge, NY 11788 D-81541 München USA Germany Telefon: (49 ...