Datasheet LT4356-1, LT4356-2 (Analog Devices) - 7

LT4356-1/LT4356-2
TYPICAL PERFORMANCE CHARACTERISTICS Specifications are at VCC = 12V, TA = 25°C unless otherwise noted. Overcurrent TMR Current vs Warning Period TMR Pull-Down Current vs (VCC – VOUT) TMR Current vs VCC Temperature
280 14 3.0 OVERCURRENT CONDITION OVERVOLTAGE, EARLY VTMR = 1V VOUT = 0V WARNING PERIOD 240 VTMR = 1V 12 VFB = 1.5V 2.5 VTMR = 1.3V 200 10 2.0 160 8 (µA) (µA) (µA) 1.5 I TMR 120 I TMR 6 I TMR 1.0 80 4 40 2 0.5 0 0 0 0 10 20 30 40 50 60 70 80 0 10 20 30 40 50 60 70 80 –50 –25 0 25 50 75 100 125 VCC – VOUT (V) VCC (V) TEMPERATURE (°C) 4356 G13 4356 G14 4356 G15
Overvoltage Turn-Off Time vs Output Low Voltage vs Current Temperature
4.0 500 OVERVOLTAGE CONDITION V 3.5 FB = 1.5V AOUT 400 3.0 2.5 FLT 300 (V) 2.0 (ns) V OL EN t OFF 1.5 200 1.0 100 0.5 0 0 0 0.5 1.0 1.5 2.0 2.5 3.0 –50 –25 0 25 50 75 100 125 CURRENT (mA) TEMPERATURE (°C) 4356 G16 4356 G17
Overcurrent Turn-Off Time vs Reverse Current vs Reverse Temperature Voltage
4.0 OVERCURRENT CONDITION –20 V ∆V CC = SNS SNS = 120mV 3.5 –15 3.0 (µs) 2.5 (mA) –10 t OFF I CC 2.0 –5 1.5 1.0 0 –50 –25 0 25 50 75 100 125 0 –20 –40 –60 –80 TEMPERATURE (°C) VCC (V) 4356 G18 4356 G19 Rev. C For more information www.analog.com 7 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Typical Applications Package Description Revision History Typical Application Related Parts