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L6710 Datasheet(PDF) 1 Page - STMicroelectronics |
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L6710 Datasheet(HTML) 1 Page - STMicroelectronics |
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1 / 34 page  1/34 L6710 March 2004 ■ 2 PHASE OPERATION WITH SYNCRHONOUS RECTIFIER CONTROL ■ ULTRA FAST LOAD TRANSIENT RESPONSE ■ INTEGRATED HIGH CURRENT GATE DRIVERS: UP TO 2A GATE CURRENT ■ 6 BIT PROGRAMMABLE OUTPUT COMPLIANT WITH VRD 10 ■ DYNAMIC VID MANAGEMENT ■ 0.5% OUTPUT VOLTAGE ACCURACY ■ 10% ACTIVE CURRENT SHARING ACCURACY ■ DIGITAL 2048 STEP SOFT-START ■ OVERVOLTAGE PROTECTION ■ OVERCURRENT PROTECTION REALIZED USING THE LOWER MOSFET'S RdsON OR A SENSE RESISTOR ■ OSCILLATOR EXTERNALLY ADJUSTABLE AND INTERNALLY FIXED AT 150kHz ■ POWER GOOD OUTPUT AND ENABLE FUNCTION ■ INTEGRATED REMOTE SENSE BUFFER APPLICATIONS ■ POWER SUPPLY FOR HIGH CURRENT MICROPROCESSORS ■ POWER SUPPLY FOR SERVER AND WORKSTATION ■ DISTRIBUTED POWER SUPPLY DESCRIPTION The device implements a two phase step-down controller with a 180 phase-shift between each phase with integrated high current drivers in a compact 10x10mm body package with exposed pad. A precise 6-bit digital to analog converter (DAC) allows adjusting the output voltage from 0.8375V to 1.6000V with 12.5mV binary steps managing Dynamic VID code changes. The high precision internal reference assures the selected output voltage to be within 0.5% over line and temperature variations. The high peak current gate drive affords to have fast switching to the ex- ternal power mos providing low switching losses. The device assures a fast protection against load over current and load over/under voltage. An inter- nal crowbar is provided turning on the low side mosfet if an over-voltage is detected. In case of over-current, the system works in Con- stant Current mode until UVP PIN CONNECTION (top view) REF_OUT VSEN OUTEN N.C. N.C. FBR FBG ISEN1 PGNDS ISEN2 OSC / FAULT N.C. HGATE1 PHASE1 VCCDR LGATE1 PGND LGATE2 N.C. PHASE2 HGATE2 N.C. 34 35 36 37 38 39 40 41 42 43 1 44 2 3 4 5 6 7 8 9 10 11 22 21 20 19 18 17 16 15 14 13 12 33 32 31 30 29 28 27 26 25 24 23 TQFP44 (10 x 10 x 1mm) Exposed Pad ORDERING NUMBERS:L6710 L6710TR (Tape & Reel) 6 BIT PROGRAMMABLE DUAL-PHASE CONTROLLER WITH DYNAMIC VID MANAGEMENT |
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