Datasheet LT4356-1, LT4356-2 (Analog Devices) - 6

LT4356-1/LT4356-2
TYPICAL PERFORMANCE CHARACTERISTICS Specifications are at VCC = 12V, TA = 25°C unless otherwise noted. GATE Pull-Up Current vs SHDN Current vs Temperature GATE Pull-Up Current vs VCC Temperature
6 V 40 35 SHDN = 0V VGATE = VOUT = 12V 35 5 30 30 25 4 25 20 (µA) 3 (µA) 20 (µA) I SHDN I GATE I GATE 15 15 2 10 10 1 5 5 0 0 0 –50 –25 0 25 50 75 100 125 0 10 20 30 40 50 60 70 80 –50 –25 0 25 50 75 100 125 TEMPERATURE (°C) VCC (V) TEMPERATURE (°C) 4356 G04 4356 G05 4356 G06
GATE Pull-Down Current vs GATE Pull-Down Current vs Temperature Temperature
Δ
VGATE vs IGATE
220 OVERVOLTAGE CONDITION 12 OVERCURRENT CONDITION 14 VOUT = 12V VFB = 1.5V ∆VSNS = 120mV 200 10 12 10 180 8 (mA) (mA) (V) 8 160 6 GATE∆V 6 I GATE(DOWN) 140 I GATE(DOWN) 4 4 120 2 2 100 0 0 –50 –25 0 25 50 75 100 125 –50 –25 0 25 50 75 100 125 0 2 4 6 8 10 12 14 16 TEMPERATURE (°C) TEMPERATURE (°C) IGATE (µA) 4356 G07 4356 G08 4356 G09
Overvoltage TMR Current vs
Δ
VGATE vs Temperature
Δ
VGATE vs VCC (VCC – VOUT)
14 I 16 48 GATE = –1µA OVERVOLTAGE CONDITION TA = 130°C VOUT = 5V 12 14 V V CC = 8V 40 TMR = 1V 12 10 TA = –45°C 32 10 TA = 25°C (V) 8 (V) 8 (µA) 24 GATE GATE ∆V 6 ∆V I TMR 6 VCC = 4V 16 4 4 2 8 2 IGATE = –1µA VOUT = VCC 0 0 0 –50 –25 0 25 50 75 100 125 0 10 20 30 40 50 60 70 80 0 10 20 30 40 50 60 70 80 TEMPERATURE (°C) VCC (V) VCC – VOUT (V) 4356 G10 4356 G11 4356 G12 Rev. C 6 For more information www.analog.com 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