Datasheet LT4356-3 (Analog Devices) - 5

LT4356-3
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) 43563 G04 43563 G05 43563 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) 43563 G07 43563 G08 43563 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) 43563 G10 43563 G11 43563 G12 Rev D For more information www.analog.com 5 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Typical Applications Revision History Typical Application .18702 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