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LTC4253ACGN-ADJ Datasheet(PDF) 2 Page - Linear Technology |
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LTC4253ACGN-ADJ Datasheet(HTML) 2 Page - Linear Technology |
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2 / 32 page  LTC4253A-ADJ 2 4253a-adjf GN PACKAGE 20-LEAD PLASTIC SSOP 1 2 3 4 5 6 7 8 9 10 TOP VIEW 20 19 18 17 16 15 14 13 12 11 EN2 PWRGD2 PWRGD1 VIN RESET SS SEL SENSE VEE VEE PWRGD3 EN3 SQTIMER TIMER UVL UV OVL OV DRAIN GATE Current into VIN (100µs Pulse) ........................... 100mA Current into DRAIN (100 µs Pulse)........................ 20mA VIN, DRAIN Minimum Voltage............................... –0.3V Input/Output (Except SENSE and DRAIN) Voltage ...................................– 0.3V to 16V SENSE Voltage ..........................................– 0.6V to 16V Current Out of SENSE (20 µs Pulse) .................. –200mA Maximum Junction Temperature .......................... 125 °C ORDER PART NUMBER TJMAX = 125°C, θJA = 95°C/W Consult LTC Marketing for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container. LTC4253ACGN-ADJ LTC4253AIGN-ADJ ABSOLUTE AXI U RATI GS PACKAGE/ORDER I FOR ATIO (Note 1) All voltages referred to VEE Operating Temperature Range LTC4253A-ADJC ..................................... 0 °C to 70°C LTC4253A-ADJI .................................. – 40 °C to 85°C Storage Temperature Range SSOP ................................................ – 65 °C to 150°C QFN .................................................. – 65 °C to 125°C Lead Temperature (Soldering, 10 sec) SSOP ................................................................ 300 °C ORDER PART NUMBER LTC4253ACUF-ADJ LTC4253AIUF-ADJ 20 19 18 17 16 6 7 8 TOP VIEW 21 UF PACKAGE 20-LEAD (4mm × 4mm) PLASTIC QFN 9 10 5 4 3 2 1 11 12 13 14 15 VIN RESET SS SEL SENSE SQTIMER TIMER UVL UV OVL TJMAX = 125°C, θJA = 37°C/W EXPOSED PAD (PIN 21) IS VEEMUST BE SOLDERED TO PCB UF PART MARKING* 253AJ ELECTRICAL CHARACTERISTICS The ● denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. (Note 2) SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS VZ VIN – VEE Zener Voltage IIN = 2mA ● 11.5 13 14.5 V RZ VIN – VEE Zener Dynamic Impedance IIN = (2mA to 30mA) 5 Ω IIN VIN Supply Current UV = UVL = OV = OVL = 4V, VIN = (VZ – 0.3V) ● 1.1 2 mA VLKO VIN Undervoltage Lockout Coming Out of UVLO (Rising VIN) ● 910 V VLKH VIN Undervoltage Lockout Hysteresis ● 0.25 0.5 0.75 V VIH TTL Input High Voltage ● 2V VIL TTL Input Low Voltage ● 0.8 V VHYST TTL Input Buffer Hysteresis 600 mV IRESET RESET Input Current VEE ≤ VRESET ≤ VIN ● ±0.1 ±10 µA IEN EN2, EN3 Input Current VEN = 4V (Sinking) ● 60 120 180 µA VEN = 0V ● ±0.1 ±10 µA Order Options Tape and Reel: Add #TR, Lead Free: Add #PBF, Lead Free Tape and Reel: Add #TRPBF, Lead Free Part Marking: http://www.linear.com/leadfree/ |
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