Datasheet LT3652HV (Analog Devices) - 6

LT3652HV
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted. Thermal Foldback – Maximum Maximum Charge Current Charge Current (VSENSE–VBAT) Maximum Charge Current (VSENSE–VBAT) vs Temperature vs Temperature (VSENSE–VBAT) vs VIN_REG Voltage
101.0 120 100 VFB = 3V 100.8 100 100.6 80 100.4 80 60 (mV) 100.2 (mV) (mV) 100.0 60 99.8 40 V SENSE(DC) V SENSE(DC) 40 V SENSE(DC) 99.6 99.4 20 20 99.2 99.0 0 0 –50 –25 0 25 50 75 100 125 25 35 45 55 65 75 85 95 105 115 125 135 2.65 2.66 2.67 2.68 2.69 2.7 2.71 2.72 2.73 2.74 2.75 TEMPERATURE (°C) TEMPERATURE (°C) VIN_REG (V) 3652 G08 3652 G07 3652 G10
Battery Bias Current with VFLOAT Programming Resistor CC/CV Charging; BAT Pin Bias Charger Disabled (I Current vs V BAT + ISENSE + FLOAT for 2-Resistor Current vs VBAT I Network BOOST + ISW)
2.2 18 12 2.0 16 1.8 10 1.6 14 1.4 12 8 1.2 VIN FLOATING 1.0 10 (mA) (µA) 6 0.8 I BAT 8 I RFB 0.6 0.4 6 4 0.2 BATTERY CURRENT (µA) 4 0.0 2 VIN = 20V –0.2 V 2 BAT(FLT) VSHDN = 0V –0.4 0 0 0 0.5 1 1.5 2 2.5 3 0 2 4 6 8 10 12 14 16 18 0 2 4 6 8 10 12 14 16 18 VBAT (V) V V BAT (V) BAT(FLT) (V) 3652 G09 3652 F14 3652 G11
Charge Current, Efficiency, and Power Loss vs Time Charger Efficiency vs Battery (ICHG(MAX) = 2A; VFLOAT = 8.2V) Voltage (ICHG = 2A)
3.0 95 90 VIN = 20V EFFICIENCY 88 2.5 85 86 POWER EFFICIENCY (%) 2.0 84 LOSS 75 CHARGE (%) 82 CURRENT 1.5 65 80 78 1.0 55 EFFICIENCY 76 0.5 45 74 CHARGE CURRENT (A); POWER LOSS (W) 72 VIN = 20V WITH INPUT BLOCKING DIODE 0 35 70 0 20 40 60 80 100 120 140 160 180 200 3 4 5 6 7 8 9 10 11 12 13 14 15 TIME (MINUTES) VBAT (V) 3652 G12 3652 G13 3652hvfb 6 For more information www.linear.com/LT3652HV Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Applications Information Typical Applications Package Description Revision History Typical Application Related Parts