Datasheet LTC4162-S (Analog Devices) - 7
| Manufacturer | Analog Devices |
| Description | 35V/3.2A Lead-Acid Step-Down Battery Charger with PowerPath and I2C Telemetry |
| Pages / Page | 46 / 7 — TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted. … |
| Revision | B |
| File Format / Size | PDF / 1.0 Mb |
| Document Language | English |
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted. Input Current and Charge Current
Text Version of Document
LTC4162-S
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted. Input Current and Charge Current Resistive Source Input Voltage and Charge Current vs Battery Voltage vs Load Current Charge Current vs Load Current
3.6 3.6 3.6 20 VIN = 18V, 12V BATTERY CHARGE 3.2 3.2 CHARGE 3.2 18 CURRENT CURRENT 2.8 2.8 2.8 16 2.4 2.4 14 INPUT VOL 2.4 2.0 INPUT 2.0 12 2.0 CURRENT 1.6 1.6 10 T 1.6 INPUT AGE (V) 1.2 CURRENT (A) 1.2 VOLTAGE 8 1.2 CHARGE CURRENT (A) 0.8 0.8 CHARGE CURRENT (A) 6 0.8 CC–CV 0.4 0.4 4 V SOURCE IMPEDANCE = 5Ω 0.4 ABSORB IN = 18V 0.0 0.0 2 EQUALIZE VBAT = 3.7V input_undervoltage_setting = 7V iin_limit_target = 1.2A cell_count = 1 0.0 −0.4 −0.4 0 6.0 7.2 8.4 9.6 10.8 12.0 13.2 14.4 15.6 16.8 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 0.0 0.5 1.0 1.5 2.0 2.5 3.0 BATTERY VOLTAGE (V) LOAD CURRENT (A) LOAD CURRENT (A) 4162S G01 4162S G02 4162S G03
No Input Battery Drain Current vs Ship Mode Battery Drain Current VOUT vs VIN Power Path Controller Battery Voltage vs Battery Voltage
12.3 100 4 125°C 125°C VOUT 80 25°C 12.2 3 60 25°C –50°C 12.1 –50°C 2 VOLTAGE (V) 40 OUTV Y DRAIN CURRENT (µA) Y DRAIN CURRENT (µA) 12.0 TTER 1 TTER 20 V BA BA BAT I V N VIN = 0V 11.9 0 0 −0.05 0.00 0.05 0.10 0.15 0.20 0 5 10 15 20 25 30 35 2.5 9.0 15.5 22.0 28.5 35.0 VIN − VBAT VOLTAGE (V) BATTERY VOLTAGE (V) BATTERY VOLTAGE (V) 4162S G04 4162S G05 4162S G06
Top and Bottom Switch RDS(ON) Efficiency vs Input Voltage Efficiency vs Switching Frequency
170 100.0 95.0 C I HARGE = 2.5A VBAT =12.5V ICHARGE = 2.5A 150 97.5 24V BATTERY 92.5 125°C 18V BATTERY 12V BATTERY 130 95.0 90.0 ANCE (mΩ) 75°C 6V BATTERY 110 92.5 87.5 25°C 90 EFFICIENCY (%) 90.0 EFFICIENCY (%) 85.0 SWITCH RESIST VIN = 20V 70 −50°C 87.5 82.5 VIN = 25V VIN = 30V VIN = 35V 50 85.0 80.0 0.2 0.7 1.2 1.7 2.2 2.7 3.2 5 10 15 20 25 30 35 1.0 1.5 2.0 2.5 3.0 3.5 4.0 SWITCH PIN CURRENT (A) INPUT VOLTAGE (V) SWITCHING FREQUENCY (MHz) 4162S G07 4162S G08 4162S G09 Rev 0 For more information www.analog.com 7 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Pin Configuration Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram ESD Diagram Timing Diagram Operation Applications Information Register Descriptions Typical Applications Package Description Typical Application Related Parts
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted. Input Current and Charge Current Resistive Source Input Voltage and Charge Current vs Battery Voltage vs Load Current Charge Current vs Load Current
3.6 3.6 3.6 20 VIN = 18V, 12V BATTERY CHARGE 3.2 3.2 CHARGE 3.2 18 CURRENT CURRENT 2.8 2.8 2.8 16 2.4 2.4 14 INPUT VOL 2.4 2.0 INPUT 2.0 12 2.0 CURRENT 1.6 1.6 10 T 1.6 INPUT AGE (V) 1.2 CURRENT (A) 1.2 VOLTAGE 8 1.2 CHARGE CURRENT (A) 0.8 0.8 CHARGE CURRENT (A) 6 0.8 CC–CV 0.4 0.4 4 V SOURCE IMPEDANCE = 5Ω 0.4 ABSORB IN = 18V 0.0 0.0 2 EQUALIZE VBAT = 3.7V input_undervoltage_setting = 7V iin_limit_target = 1.2A cell_count = 1 0.0 −0.4 −0.4 0 6.0 7.2 8.4 9.6 10.8 12.0 13.2 14.4 15.6 16.8 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 0.0 0.5 1.0 1.5 2.0 2.5 3.0 BATTERY VOLTAGE (V) LOAD CURRENT (A) LOAD CURRENT (A) 4162S G01 4162S G02 4162S G03
No Input Battery Drain Current vs Ship Mode Battery Drain Current VOUT vs VIN Power Path Controller Battery Voltage vs Battery Voltage
12.3 100 4 125°C 125°C VOUT 80 25°C 12.2 3 60 25°C –50°C 12.1 –50°C 2 VOLTAGE (V) 40 OUTV Y DRAIN CURRENT (µA) Y DRAIN CURRENT (µA) 12.0 TTER 1 TTER 20 V BA BA BAT I V N VIN = 0V 11.9 0 0 −0.05 0.00 0.05 0.10 0.15 0.20 0 5 10 15 20 25 30 35 2.5 9.0 15.5 22.0 28.5 35.0 VIN − VBAT VOLTAGE (V) BATTERY VOLTAGE (V) BATTERY VOLTAGE (V) 4162S G04 4162S G05 4162S G06
Top and Bottom Switch RDS(ON) Efficiency vs Input Voltage Efficiency vs Switching Frequency
170 100.0 95.0 C I HARGE = 2.5A VBAT =12.5V ICHARGE = 2.5A 150 97.5 24V BATTERY 92.5 125°C 18V BATTERY 12V BATTERY 130 95.0 90.0 ANCE (mΩ) 75°C 6V BATTERY 110 92.5 87.5 25°C 90 EFFICIENCY (%) 90.0 EFFICIENCY (%) 85.0 SWITCH RESIST VIN = 20V 70 −50°C 87.5 82.5 VIN = 25V VIN = 30V VIN = 35V 50 85.0 80.0 0.2 0.7 1.2 1.7 2.2 2.7 3.2 5 10 15 20 25 30 35 1.0 1.5 2.0 2.5 3.0 3.5 4.0 SWITCH PIN CURRENT (A) INPUT VOLTAGE (V) SWITCHING FREQUENCY (MHz) 4162S G07 4162S G08 4162S G09 Rev 0 For more information www.analog.com 7 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Pin Configuration Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram ESD Diagram Timing Diagram Operation Applications Information Register Descriptions Typical Applications Package Description Typical Application Related Parts
