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LTC4057-4.2 Datasheet(PDF) 2 Page - Linear Technology |
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LTC4057-4.2 Datasheet(HTML) 2 Page - Linear Technology |
2 / 12 page LTC4057-4.2 2 4057f SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS VCC Input Supply Voltage q 4.25 6.5 V ICC Input Supply Current IBAT = 0mA, RPROG = 2k q 200 600 µA Shutdown Mode (SHDN = 0V, q 50 µA VCC < VBAT, or VCC < VUV) VFLOAT Regulated Output (Float) Voltage IBAT = 40mA, 0°C < TA < 85°C 4.158 4.2 4.242 V IBAT BAT Pin Charge Current RPROG = 10k; Current Mode q 93 100 107 mA RPROG = 2k; Current Mode q 465 500 535 mA Shutdown Mode (SHDN = 0V) ±1 ±2 µA Sleep Mode (VCC = 0V) ±1 ±2 µA ITRIKL Trickle Charge Current VBAT < 2.9V; RPROG = 2k (ICHG = 500mA) q 20 50 70 mA VTRIKL Trickle Charge Threshold Voltage RPROG = 10k; VBAT Rising 2.8 2.9 3.0 V Hysteresis 60 80 110 mV VUV VCC Undervoltage Lockout Voltage From Low to High q 3.7 3.8 3.9 V Hysteresis q 150 200 300 mV VASD VCC - VBAT Lockout Threshold Voltage VCC from Low to High 70 100 150 mV VCC from High to Low 5 30 70 mV VPROG PROG Pin Voltage RPROG = 10k; Current Mode q 0.93 1.0 1.07 V VSHDN-IL SHDN Pin Input Low Voltage 0.4 0.65 V VSHDN-IH SHDN Pin Input High Voltage 0.65 1.0 V ISHDN SHDN Pin Input Current VSHDN = 5V q 515 µA TLIM Junction Temperature in 120 °C Constant-Temperature Mode RON Power FET “ON” Resistance 600 m Ω (Between VCC and BAT) tSS Soft-Start Time IBAT = 0 to IBAT = 1000V/RPROG 100 µs (Note 1) Input Supply Voltage (VCC) ........................– 0.3V to 10V PROG .............................................. – 0.3V to VCC + 0.3V BAT .............................................................. – 0.3V to 7V SHDN .........................................................– 0.3V to 10V BAT Short Circuit Duration ........................... Continuous BAT Pin Current .................................................. 800mA PROG Pin Current ................................................ 800 µA Junction Temperature ........................................... 125 °C Operating Ambient Temperature Range (Note 2) .............................................. – 40 °C to 85°C Storage Temperature Range ................. – 65 °C to 125°C Lead Temperature (Soldering, 10 sec).................. 300 °C ORDER PART NUMBER S5 PART MARKING TJMAX = 125°C, (θJA = 100°C/W TO 150°C/W DEPENDING ON PC BOARD LAYOUT) (NOTE 3) LTAEW LTC4057ES5-4.2 ABSOLUTE AXI U RATI GS PACKAGE/ORDER I FOR ATIO ELECTRICAL CHARACTERISTICS The q denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. VCC = 5V Consult LTC Marketing for parts specified with wider operating temperature ranges. 5 PROG 4 VCC SHDN 1 TOP VIEW S5 PACKAGE 5-LEAD PLASTIC SOT-23 GND 2 BAT 3 |
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