CA3275 INTERSIL | Alldatasheet

Document overview

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Technical content

Features

  • Two Full Bridge Drivers
  • ± 150mA Maximum Current
  • Logic Controlled Switching
  • Direction Control
  • PWM I OUT Control
  • 18V Over-Voltage Protection
  • 300mA Short-Circuit Protection
  • Nominal 8V to 16V Operation
  • Internal Voltage Regulation With Bandgap Reference

Applications

  • Dual Full Bridge Driver For Air Core Gauge Instrumen- tation
  • µP Controlled Sensor Data Displays
  • Speedometer Displays
  • Tachometer Displays
  • Stepper Motors
  • Slave Position Indicators File Number 2159.3 April 1994 Pinout CA3275 (PDIP) TOP VIEW COIL A- VCC VCC PWMB DIR B VCC COIL B- COIL A+ GND PWMA DIR A GND GND COIL B+ Block Diagram SENSOR & CONVERTER A/D, V/F, ETC MICROPROCESSOR PHASE, DIRECTION & PWM CONTROL CA3275 DUAL-H DRIVER LA LB SIN COS ROTOR

Specifications CA3275 Absolute Maximum Ratings Thermal Information Each Drive Each Drive Thermal Resistance θJA Power Dissipation, PD Ambient Temperature Range At distance 1/16± 1/32" (1.59± 0.79mm) from case for 10s max CAUTION: Stresses above those listed in “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress only rating and operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied. Electrical SpecificationsTA = -40oC to +85oC, VCC = 16V Unless Otherwise Specified PARAMETERS SYMBOL MIN TYP MAX UNITS Operating Supply Voltage Range V CC 8 - 16 V Supply Current (Note 1) I CC - 8 20 mA INPUT LEVELS Logic Input, Low Voltage V IL - - 0.8 V Logic Input, High Voltage V IH 3.5 - - V Logic Input, Low Current, VIL = 0V I IL -10 - - µA Logic Input, High Current, VIH = 5V I IH -- 1 0 µA OUTPUT: RLA = RLB = 138Ω Maximum Source Saturated Voltage V SAT - High - 1.2 1.75 V Maximum Sink Saturated Voltage V SAT - Low - 0.25 0.5 V Differential VSAT Voltage, Both Outputs Saturated Diff - V SAT - 10 100 mV Switching Specifications PARAMETERS SYMBOL MIN TYP MAX UNITS SOURCE CURRENT (See Figure 3) Turn-Off Delay T SC-OFF --2 µs Fall Time T SC-F - - 2.2 µs Turn-On Time T SC-ON --1 µs Rise Time T SC-R - - 0.4 µs SINK CURRENT (See Figure 4) Turn-Off Delay T SK-OFF - - 1.6 µs Fall Time T SK-F - - 0.4 µs Turn-On Time T SK-ON - - 0.6 µs Rise Time T SK-R - - 0.2 µs NOTE: 1. No load, PWMA = PWMB = 5V, DIR A = DIR B = 0V

All Intersil semiconductor products are manufactured, assembled and tested underISO9000 quality systems certification. Intersil products are sold by description only. Intersil Corporation reserves the right to make changes in circuit design and/or specifications at any time without notice. Accordingly, the reader is cautioned to verify that data sheets are current before placing orders. Information furnished by Intersil is believed to be accurate and reli- able. However, no responsibility is assumed by Intersil or its subsidiaries for its use; nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Intersil or its subsidiaries. For information regarding Intersil Corporation and its products, see web sitehttp://www.intersil.com Sales Office Headquarters NORTH AMERICA Intersil Corporation P. O. Box 883, Mail Stop 53-204 Melbourne, FL 32902 TEL: (321) 727-9207 FAX: (321) 724-7240 EUROPE Intersil SA Mercure Center 100, Rue de la Fusee

1130 Brussels, Belgium

TEL: (32) 2.724.2111 ASIA Intersil (Taiwan) Ltd. Taiwan Limited 7F-6, No. 101 Fu Hsing North Road Taipei, Taiwan Republic of China TEL: (886) 2 2716 9310 FAX: (886) 2 2715 3029