Datasheet LTC4007-1 (Analog Devices) - 5

LTC4007-1
Typical perForMance characTerisTics INFET Response Time to Reverse Current Line Regulation VOUT vs IOUT
0.10 0 Vgs OF PFET (2V/DIV) 0.05 V –0.5 gs = 0 0 –1.0 –0.05 –1.5 –0.10 C3C4 = OPEN –2.0 Vs OF PFET (5V/DIV) –0.15 –2.5 ERROR (%) –0.20 C3C4 = GND –3.0 –0.25 V OUT –3.5 V –0.30 s = 0V –4.0 I –0.35 OUTPUT VOLTAGE ERROR (%) d (REVERSE) OF PFET (5A/DIV) –0.40 –4.5 3C4C = GND 3C4C = OPEN Id = 0A –0.45 –5.0 1.25µs/DIV 13 15 17 19 21 23 25 27 29 31 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 TEST PERFORMED ON DEMOBOARD VDCIN (V) OUTPUT CURRENT (A) VIN = 15VDC VCHARGE = 12.6V 40071 G02 40071 G03 CHARGER = ON PFET = 1/2 Si4925DY ICHARGE = <10mA 40071 G01
Disconnect/Reconnect Battery PWM Frequency vs Duty Cycle (Load Dump) 1A Load Step (Battery Present)
350 300 3A STEP CHARGER CURRENT (1A/DIV) 250 1A STEP 1A STEP VFLOAT 200 1V/DIV 150 PROGRAMMED CURRENT = 10% OUTPUT VOLTAGE (500mV/DIV) 100 3A STEP PWM FREQUENCY (kHz) LOAD STATE DISCONNECT RECONNECT 50 DCIN = 15V DCIN = 20V DCIN = 24V 0 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 LOAD CURRENT = 1A, 2A, 3A DCIN = 20V DUTY CYCLE (VOUT/VIN) DCIN = 20V VFLOAT = 12.6V VFLOAT = 12.6V (3C4C = GND, CHEM = OPEN) 40071 G04 40071 G06 40071 G05
1A Load Step Battery Leakage Current vs (Battery Not Present) Battery Voltage
40 VDCIN = 0V 35 30 25 CHARGER CURRENT (500mA/DIV) 20 15 OUTPUT VOLTAGE (5V/DIV) 10 BATTERY LEAKAGE CURRENT (µA) 5 0 DCIN = 20V 0 5 10 15 20 25 30 VFLOAT = 12.6V BATTERY VOLTAGE (V) 40071 G07 40071 G08 40071fa For more information www.linear.com/LTC4007-1 5 Document Outline Description Typical Application Absolute Maximum Ratings Typical Performance Characteristics Pin Functions Block Diagram Operation Typical Application Related Parts