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L296PHT Datasheet(PDF) 1 Page - STMicroelectronics |
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L296PHT Datasheet(HTML) 1 Page - STMicroelectronics |
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1 / 22 page  L296 L296P June 2000 HIGH CURRENT SWITCHING REGULATORS . 4 A OUTPUT CURRENT . 5.1 V TO 40 V OUTPUT VOLTAGE RANGE . 0 TO 100 % DUTY CYCLE RANGE . PRECISE ( ±2 %) ON-CHIP REFERENCE . SWITCHING FREQUENCY UP TO 200 KHz . VERY HIGH EFFICIENCY (UP TO 90 %) . VERY FEW EXTERNAL COMPONENTS . SOFT START . RESET OUTPUT . EXTERNAL PROGRAMMABLE LIMITING CURRENT (L296P) . CONTROL CIRCUIT FOR CROWBAR SCR . INPUT FOR REMOTE INHIBIT AND SYNCHRONUS PWM . THERMAL SHUTDOWN DESCRIPTION The L296 andL296P are stepdownpower switching regulators delivering 4 A at a voltage variable from 5.1 V to 40 V. Featuresof the devices includesoft start, remote in- hibit, thermal protection, a reset output for micro- processors and a PWM comparator input for syn- chronization in multichip configurations. The L296P incudes external programmable limiting current. The L296 and L296P are mounted in a 15-lead Mul- tiwatt ® plasticpowerpackageandrequiresvery few external components. Efficient operation at switching frequencies up to 200 KHz allows a reduction in the size and cost of external filter components. A voltage sense input and SCR drive output are provided for optional crowbar overvoltage protection with an external SCR. Multi watt ® (15 lead) ORDERING NUMBERS : L296 (Vertical) L296HT (Horizontal) L296P (Vertical) L296PHT (Horizont al) PIN CONNECTION (top view) ® 1/22 |
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