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LTC4052-4.2 Datasheet(PDF) 2 Page - Linear Technology |
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LTC4052-4.2 Datasheet(HTML) 2 Page - Linear Technology |
2 / 12 page LTC4052-4.2 2 405242f Input Supply Voltage (VIN)....................................... 12V BAT Voltage ...............................................– 0.3V to 12V GATE (Note 2) .............................................– 0.3V to 8V SENSE, TIMER .................................. – 0.3V to VIN +0.3V CHRG, ACPR .............................................– 0.3V to 12V SENSE, BAT Peak Current ...................................... 1.5A Operating Temperature Range (Note 3) .. – 40 °C to 85°C Junction Temperature (Note 4) ............................. 125 °C Storage Temperature Range ................. – 65 °C to 150°C Lead Temperature (Soldering, 10 sec).................. 300 °C MS8 PART MARKING TJMAX = 125°C, θJA = 35°C/W EXPOSED PAD IS GROUND. (MUST BE SOLDERED TO PCB). ABSOLUTE AXI U RATI GS PACKAGE/ORDER I FOR ATIO (Note 1) SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS VIN Input Supply Voltage Wall Adapter Open Circuit Voltage q 4.5 10 V IIN Input Quiescent Supply Current Full Charge Mode q 0.7 1.4 mA VBAT Battery Float Voltage 0 °C ≤ TA ≤ 85°C 4.158 4.200 4.242 V q 4.137 4.200 4.242 V VRECHRG Recharge Battery Voltage Threshold Battery Voltage Falling 0 °C ≤ TA ≤ 85°C 3.990 4.050 4.110 V q 3.969 4.050 4.110 V VMARGIN VBAT – VRECHRG Margin q 75 150 225 mV VIMAX Overcurrent Trip Sense Voltage q 90 105 120 mV ITRICKLE Trickle Charge Current VBAT = 2V q 14 24 34 mA VTRICKLE Trickle Charge Threshold Voltage VBAT Rising q 2.35 2.45 2.55 V RDS(ON) Internal Switch On-Resistance VBAT = 2.6V 0.45 0.7 Ω VBAT = 4V 0.35 0.5 Ω VGATE GATE Pin Voltage VBAT = 2.6V 6.5 V VBAT = 4V 10.5 V TTIMER TIMER Period Accuracy CTIMER = 0.1µF, Full Charge Mode ±10 % ILEAK Battery Leakage Current Through Charger VBAT = 4V, VIN = 0V q 1 µA VSLEEP Sleep Threshold Voltage (VIN – VBAT) Low to High 20 45 70 mV (VIN – VBAT) High to Low 0 15 mV VACPR ACPR Pin Output Low Voltage IACPR = 3mA q 0.5 0.8 V ILEAKACPR ACPR Pin Leakage Current VIN = 0, VACPR = 6V q 1 µA VCHRG CHRG Pin Output Low Voltage ICHRG = 3mA, Charging, C/10 Not Reached q 0.5 0.8 V ILEAKCHRG CHRG Pin Leakage Current VIN = 0, VCHRG = 6V q 1 µA ICHRG CHRG Pin Weak Pull-Down Current VCHRG = 1V, Charging, C/10 Reached 20 40 70 µA ORDER PART NUMBER LTC4052EMS8E-4.2 1 2 3 4 8 7 6 5 TOP VIEW MSE EXPOSED PAD PACKAGE 8-LEAD PLASTIC MSOP BAT GATE CHRG TIMER SENSE ACPR VIN GND Consult LTC Marketing for parts specified with wider operating temperature ranges. LTYY DC ELECTRICAL CHARACTERISTICS The q denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. VIN = 6V unless otherwise noted. |
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