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LTC4002EDD-4.2 Datasheet(PDF) 2 Page - Linear Technology |
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LTC4002EDD-4.2 Datasheet(HTML) 2 Page - Linear Technology |
2 / 16 page LTC4002 2 4002f Supply Voltage (VCC) .............................................. 24V GATE .................................................. (VCC – 8V) to VCC BAT, SENSE .............................................. – 0.3V to 14V CHRG, NTC ................................................. – 0.3V to 8V ORDER PART NUMBER Consult LTC Marketing for parts specified with wider operating temperature ranges. LTC4002EDD-4.2 LTC4002EDD-8.4 ABSOLUTE AXI U RATI GS PACKAGE/ORDER I FOR ATIO (Note 1) TJMAX = 125°C, θJA = 110°C/W 1 2 3 4 8 7 6 5 TOP VIEW NTC SENSE BAT CHRG COMP VCC GATE GND S8 PACKAGE 8-LEAD PLASTIC SO DD PART MARKING LAGG LBGY Operating Temperature Range (Note 4) .. – 40°C to 85°C Storage Temperature Range ................. – 65°C to 125°C Lead Temperature (S8 Package) (Soldering, 10 sec) ........................................... 300°C TOP VIEW 11 DD PACKAGE 10-LEAD (3mm × 3mm) PLASTIC DFN 10 9 6 7 8 4 5 3 2 1 NC NTC SENSE BAT CHRG COMP VCC GATE PGND SGND ORDER PART NUMBER LTC4002ES8-4.2 LTC4002ES8-8.4 S8 PART MARKING 400242 400284 ELECTRICAL CHARACTERISTICS (LTC4002-4.2) The ● denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. VCC = 10V unless otherwise noted. TJMAX = 125°C, θJA = 43°C/W EXPOSED PAD IS GND (PIN 11) MUST BE SOLDERED TO PCB SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS DC Characteristics VCC VCC Supply Voltage ● 4.7 22 V ICC VCC Supply Current Current Mode 3 5 mA Shutdown Mode 3 5 mA Sleep Mode 10 20 µA VBAT(FLT) Battery Regulated Float Voltage 5V ≤ VCC ≤ 22V (Note 2) 4.168 4.2 4.232 V ● 4.158 4.242 V VSNS(CHG) Constant Current Sense Voltage 3V ≤ VBAT ≤ 4V (Note 3) 0°C ≤ TA ≤ 85°C ● 93 100 107 mV –40°C ≤ TA ≤ 85°C ● 90 110 mV VSNS(TRKL) Trickle Current Sense Voltage VBAT = 0V (Note 3) 5 10 15 mV VTRKL Trickle Charge Threshold Voltage VBAT Rising 2.75 2.9 3.05 V VUV VCC Undervoltage Lockout Threshold Voltage VCC Rising 3.9 4.2 4.5 V ∆VUV VCC Undervoltage Lockout Hysteresis Voltage 200 mV VMSD Manual Shutdown Threshold Voltage COMP Pin Falling 200 360 500 mV VASD Automatic Shutdown Threshold Voltage VCC – VBAT 250 mV ICOMP COMP Pin Output Current VCOMP = 1.2V 100 µA ICHRG CHRG Pin Weak Pull-Down Current VCHRG = 1V 15 25 35 µA VCHRG CHRG Pin Output Low Voltage ICHRG = 1mA 0.15 0.3 V REOC End-of-Charge Ratio VSNS(EOC)/VSNS(CHG) 10 25 32 % tTIMER Charge Time Accuracy 10 % |
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