Datasheet LT1158 (Analog Devices) - 4

LT1158
TYPICAL PERFORMANCE CHARACTERISTICS DC Supply Current DC Supply Current Dynamic Supply Current (V+)
14 14 30 I I 2 + I10 + I16 V13 = 0V 2 + I10 + I16 50% DUTY CYCLE 12 12 V+ = 12V CGATE = 3000pF 25 INPUT HIGH V13 = V+ INPUT HIGH 10 10 20 INPUT LOW V+ = 24V 8 8 INPUT LOW 15 V+ = 12V 6 6 10 4 4 V+ = 6V SUPPLY CURRENT (mA) SUPPLY CURRENT (mA) SUPPLY CURRENT (mA) ENABLE LOW ENABLE LOW 2 2 5 0 0 0 0 5 10 15 20 25 30 35 40 –50 –25 0 25 50 75 100 125 1 10 100 SUPPLY VOLTAGE (V) TEMPERATURE (°C) INPUT FREQUENCY (kHz) LT1158 G01 LT1158 G02 LT1158 G03
Dynamic Supply Current Charge Pump Output Voltage Input Thresholds
40 50 2.0 50% DUTY CYCLE 45 35 V+ = 12V 1.8 40 30 35 V(HIGH) 1.6 25 –40°C 30 +25°C CGATE = 10000pF NO LOAD +85°C 20 25 1.4 C –40°C GATE = 3000pF 15 20 +25°C 10μA LOAD 1.2 +85°C 15 SUPPLY CURRENT (mA) 10 TOP GATE VOLTAGE (V) V(LOW) CGATE = 1000pF 10 INPUT THRESHOLD VOLTAGE (V) 1.0 5 5 0 0 0.8 1 10 100 0 5 10 15 20 25 30 35 40 0 5 10 15 20 25 30 35 40 INPUT FREQUENCY (kHz) SUPPLY VOLTAGE (V) SUPPLY VOLTAGE (V) LT1158 G04 LT1158 G05 LT1158 G06
Enable Thresholds Fault Conduction Threshold Current Limit Threshold
3.5 160 200 CLOSED LOOP 150 V11 = 0V 190 3.0 V(HIGH) –40°C 140 180 +25°C 2.5 +85°C 130 170 120 160 2.0 +85°C 110 +25°C 150 +85°C 1.5 +25°C –40°C 100 –40°C 140 +25°C –40°C 1.0 V(LOW) +85°C 90 130 80 120 ENABLE THRESHOLD VOLTAGE (V) 0.5 CURRENT LIMIT THRESHOLD (mV) FAULT CONDUCTION THRESHOLD (mV) 70 110 0 60 100 0 5 10 15 20 25 30 35 40 0 5 10 15 20 25 30 35 40 0 5 10 15 20 25 30 35 40 SUPPLY VOLTAGE (V) SUPPLY VOLTAGE (V) SUPPLY VOLTAGE (V) LT1158 G07 LT1158 G08 LT1158 G09 1158fb 4