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LTC4090 Datasheet(PDF) 4 Page - Linear Technology |
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LTC4090 Datasheet(HTML) 4 Page - Linear Technology |
4 / 28 page LTC4090/LTC4090-5 4 4090fa SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS tTIMER TIMER Accuracy VBAT = 4.3V –10 10 % Recharge Time Percent of Total Charge Time 50 % Low Battery Trickle Charge Time Percent of Total Charge Time, VBAT <2.9V 25 % TLIM Junction Temperature in Constant Temperature Mode 105 °C Internal Ideal Diode RFWD Incremental Resistance, VON Regulation IOUT = 100mA 125 m Ω RDIO, ON On-Resistance VBAT to VOUT IOUT = 600mA 215 m Ω VFWD Voltage Forward Drop (VBAT – VOUT)IOUT = 5mA IOUT = 100mA IOUT = 600mA ● 10 30 55 160 50 mV mV mV VOFF Diode Disable Battery Voltage 2.7 V IFWD Load Current Limit for VON Regulation 550 mA ID(MAX) Diode Current Limit 2.2 A External Ideal Diode VFWD, EXT External Diode Forward Voltage 20 mV Logic (⎯C⎯H⎯R⎯G, ⎯H⎯V⎯P⎯R, TIMER, SUSP, HPWR, HVEN, PG, SYNC) VCHG, SD Charger Shutdown Threshold Voltage on TIMER ● 0.14 0.4 V ICHG, SD Charger Shutdown Pull-Up Current on TIMER VTIMER = 0V ● 514 μA VOL Output Low Voltage (⎯C⎯H⎯R⎯G, ⎯H⎯V⎯P⎯R); ISINK = 5mA ● 0.1 0.4 V VIH Input High Voltage SUSP, HPWR 1.2 V VIL Input Low Voltage SUSP, HPWR 0.4 V VHVEN, H HVEN High Threshold 2.3 V VHVEN, L HVEN Low Threshold 0.3 V IPULLDN Logic Input Pull-Down Current SUSP, HPWR 2 μA IHVEN HVEN Pin Bias Current HVEN = 2.5V 5 10 μA VPG PG Threshold HVOUT Rising 2.8 V ΔVPG PG Hysteresis 35 mV IPGLK PG Leakage PG = 5V 0.1 1 μA IPG PG Sink Current PG = 0.4V ● 100 900 μA VSYNC, L SYNC Low Threshold 0.5 V VSYNC, H SYNC High Threshold 0.8 V ISYNC SYNC Pin Bias Current VSYNC = 0V 0.1 μA ELECTRICAL CHARACTERISTICS The ● denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. HVIN = HVEN = 12V, BOOST = 17V, VIN = HPWR = 5V, VBAT = 3.7V, RPROG = 100k, RCLPROG = 2k and SUSP = 0V, unless otherwise noted. |
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Similar Description - LTC4090 |
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