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MAX17703EVKITA Datasheet(PDF) 9 Page - Maxim Integrated Products |
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MAX17703EVKITA Datasheet(HTML) 9 Page - Maxim Integrated Products |
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9 / 15 page  Maxim Integrated │ 9 www.maximintegrated.com Evaluates: MAX17703 in 4.2V Li-Ion Battery Charger Application MAX17703EVKITA# Evaluation Kit (VDCIN = 24V, VOUT = 4.2V, ICHGMAX = 10A, fSW = 350kHz, TA = +25ºC, unless otherwise noted.) MAX17703EVKITA# Performance Report 0 1 2 3 4 5 0 2 4 6 8 10 CHARGING CURRENT (A) TOC02 VDCIN = 12V VOUT vs. ICHG CURVE VDCIN = 24V V DCIN = 48V 20V/div TOC05 20ms/div VDCIN VCC 5V/div 20V/div DCIN STARTUP 5V/div VLX (VGATEN - VDCIN) CONDITIONS: CC STATE TOC08 2µs/div VOUT(AC) 50mV/div STEADY-STATE PERFORMANCE VLX 5A/div 20V/div IL CONDITIONS: CV STATE, ICHG = 5A 0 2 4 6 8 10 12 2.5 2.8 3.1 3.4 3.7 4.0 4.3 0 2 4 6 8 10 TIME (hrs) TOC03 LI-ION BATTERY CHARGING PROFILE 20V/div TOC06 4ms/div VCC 2V/div 5V/div 2V/div VLX VEN/UVLO CONDITIONS: CV STATE, ICHG = 2A SHUTDOWN THROUGH EN/UVLO VOUT ILIM TRANSIENT PERFORMANCE VILIM IS VARIED BETWEEN 0.9V AND 1.5V TOC09 40µs/div VILIM 5A/div 1V/div 5A/div IL ICHG CONDITIONS: CC STATE 30 40 50 60 70 80 90 100 0 2 4 6 8 10 CHARGING CURRENT (A) EFFICIENCY vs. CHARGING CURRENT VDCIN = 48V VDCIN = 24V VDCIN = 12V TOC01 TOC04 400 μs/div VOUT 5V/div AUTO RECHARGING OF LI-ION BATTERY VFLG2 5A/div 5V/div 1V/div ILX VFLG1 TOC07 2µs/div VDL 5V/div STEADY-STATE SWITCHING VLX (VDH - VLX) 10A/div 20V/div 5V/div IL CONDITIONS: CC STATE |
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