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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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LTC4055EUF датащи(PDF) 2 Page - Linear Technology |
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LTC4055EUF датащи(HTML) 2 Page - Linear Technology |
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2 / 24 page  2 LTC4055 4055p ORDER PART NUMBER (Notes 1, 2, 3, 4, 5) Terminal Voltage IN1, IN2, OUT, BAT ................................ –0.3V to 6V NTC, VNTC, TIMER, PROG, CLPROG ..................... –0.3V to (VCC + 0.3V) CHRG, HPWR, SUSP, SHDN, WALL, ACPR .......................................... –0.3V to 6V IN2 .......................................................... VIN1 + 0.1V Pin Current (DC) IN1, IN2, OUT, BAT (Note 7) ............................. 1.6A Operating Temperature Range ............... – 40 °C to 85°C Maximum Operating Junction Temperature......... 125 °C Reflow Peak Body Temperature ........................... 260 °C Storage Temperature Range ................ – 65 °C to 125°C LTC4055EUF TJMAX = 125°C, θJA = 37°C/W EXPOSED PAD IS GND (PIN 17) MUST BE SOLDERED TO PCB ABSOLUTE MAXIMUM RATINGS PACKAGE/ORDER INFORMATION The q indicates specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. VIN1 = VIN2 = 5V, VBAT = 3.5V, HPWR = 5V, WALL = 0V, RPROG = RCLPROG = 100k, unless otherwise noted. Consult LTC Marketing for parts specified with wider operating temperature ranges. ELECTRICAL CHARACTERISTICS 16 15 14 13 5 6 7 8 TOP VIEW 17 UF PACKAGE 16-LEAD (4mm × 4mm) PLASTIC QFN 9 10 11 12 4 3 2 1 IN2 BAT OUT IN1 TIMER PROG GND CLPROG 4055 UF PART MARKING SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS VIN Input Supply Voltage IN1, IN2 and OUT q 4.35 5.5 V VBAT Input Voltage BAT q 4.3 V IIN Input Supply Current VBAT = 4.2V q 0.8 1.6 mA Suspend Mode q 50 100 µA Suspend Mode, Wall = 2V, VOUT = 4.8V 0.2 mA Shutdown q 10 20 µA IOUT Output Supply Current VOUT = 5V, VIN1 = VIN2 = 0V, VBAT = 4.2V q 450 900 µA IBAT Battery Drain Current VBAT = 4.2V, Charging Stopped q 15 30 µA Suspend Mode q 15 30 µA Shutdown q 2.5 5 µA VIN1 = VIN2 = 0V, BAT Powers OUT, No Load q 50 100 µA ILIM(MAX) Maximum Current Limit (Note 8) 1 A VUVLO Input or Output Undervoltage Lockout VIN Powers Part, Rising Threshold q 3.6 3.8 4 V VOUT Powers Part, Rising Threshold q 3.6 3.8 4 V ∆VUVLO Input or Output Undervoltage Lockout VIN Rising – VIN Falling or 125 mV Hysteresis VOUT Rising – VOUT Falling Current Limit ILIM Current Limit RCLPROG = 100k, HPWR = 5V q 465 490 515 mA RCLPROG = 100k, HPWR = 0V q 89 97 105 mA RON ON Resistance VIN to VOUT HPWR = 5V, 400mA Load 0.2 Ω HPWR = 0V, 80mA Load 0.2 Ω VPROG Programming Pin Voltage RCLPROG = RPROG = 100k q 0.98 1.000 1.02 V (PROG, CLPROG) RCLPROG = RPROG = 50k q 0.98 1.000 1.02 V ISS Soft-Start Inrush Current IN or OUT 5 mA/ µs VCLEN Input Current Limit Enable Threshold VIN Rising q 3.6 3.8 4 V ∆VCLEN Input Current Limit Enable Threshold VIN Rising – VIN Falling 125 mV VALEN Automatic Limit Enable Threshold (VIN – VOUT) VIN Rising 25 50 75 mV Voltage (VIN – VOUT) VIN Falling –75 –50 –25 mV |
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