Datasheet LTC4007 (Analog Devices) - 4
| Fabricante | Analog Devices |
| Descripción | 4A, High Efficiency, Standalone Li-Ion Battery Charger |
| Páginas / Página | 24 / 4 — ELECTRICAL CHARACTERISTICS. The. denotes the specifications which apply … |
| Formato / tamaño de archivo | PDF / 259 Kb |
| Idioma del documento | Inglés |
ELECTRICAL CHARACTERISTICS. The. denotes the specifications which apply over the full operating
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link to page 9 LTC4007
ELECTRICAL CHARACTERISTICS The
l
denotes the specifications which apply over the full operating temperature range (Note 4), otherwise specifications are at TA = 25°C. VDCIN = 20V, VBAT = 12V unless otherwise noted. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
VOL Low Logic Level of ACP, CHG, FLAG, LOBAT, IOL = 100µA l 0.5 V ICL, FAULT VOH High Logic Level of CHG, LOBAT, ICL IOH = –1µA l 2.7 V IOFF Off State Leakage Current of ACP, FLAG, FAULT VOH = 3V –1 1 µA IPO Pull-Up Current on CHG, LOBAT, ICL V = 0V –10 µA Charge Termination Defeat Threshold at CHG 1 V
Programming Inputs (CHEM and 3C4C)
VIH High Logic Level l 3.3 V VIL Low Logic Level l 1 V IPI Pull-Up Current V = 0V –14 µA
Oscillator
fOSC Regulator Switching Frequency 255 300 345 kHz fMIN Regulator Switching Frequency in Drop Out Duty Cycle ≥ 98% 20 25 kHz DCMAX Regulator Maximum Duty Cycle VCSP = VBAT 98 99 %
Gate Drivers (TGATE, BGATE)
VTGATE High (VCLN – VTGATE) ITGATE = –1mA 50 mV VBGATE High CLOAD = 3000pF 4.5 5.6 10 V VTGATE Low (VCLN – VTGATE) CLOAD = 3000pF 4.5 5.6 10 V VBGATE Low IBGATE = 1mA 50 mV TGATE Transition Time TGTR TGATE Rise Time CLOAD = 3000pF, 10% to 90% 50 110 ns TGTF TGATE Fall Time CLOAD = 3000pF, 10% to 90% 50 100 ns BGATE Transition Time BGTR BGATE Rise Time CLOAD = 3000pF, 10% to 90% 40 90 ns BGTF BGATE Fall Time CLOAD = 3000pF, 10% to 90% 40 80 ns VTGATE at Shutdown (VCLN – VTGATE) ITGATE = –1µA, DCIN = 0V, CLN = 12V 100 mV VBGATE at Shutdown IBGATE = 1µA, DCIN = 0V, CLN = 12V 100 mV
Note 1:
Stresses beyond those listed under Absolute Maximum Ratings
Note 3:
Does not include tolerance of current sense resistor or current may cause permanent damage to the device. Exposure to any Absolute programming resistor. Maximum Rating condition for extended periods may affect device
Note 4:
The LTC4007E is guaranteed to meet performance specifications reliability and lifetime. from 0°C to 70°C. Specifications over the –40°C to 85°C operating
Note 2:
See "Test Circuit". temperature range are assured by design, characterization and correlation with statistical process controls. Rev D 4 For more information www.analog.com Document Outline Description Typical Application Absolute Maximum Ratings Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Package Description Typical Application Related Parts Features Applications Typical Application Description Absolute Maximum Ratings Order Information Electrical Characteristics Pin Configuration Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Test Circuit Operation Applications Information Package Description Revision History Typical Application Related Parts
ELECTRICAL CHARACTERISTICS The
l
denotes the specifications which apply over the full operating temperature range (Note 4), otherwise specifications are at TA = 25°C. VDCIN = 20V, VBAT = 12V unless otherwise noted. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
VOL Low Logic Level of ACP, CHG, FLAG, LOBAT, IOL = 100µA l 0.5 V ICL, FAULT VOH High Logic Level of CHG, LOBAT, ICL IOH = –1µA l 2.7 V IOFF Off State Leakage Current of ACP, FLAG, FAULT VOH = 3V –1 1 µA IPO Pull-Up Current on CHG, LOBAT, ICL V = 0V –10 µA Charge Termination Defeat Threshold at CHG 1 V
Programming Inputs (CHEM and 3C4C)
VIH High Logic Level l 3.3 V VIL Low Logic Level l 1 V IPI Pull-Up Current V = 0V –14 µA
Oscillator
fOSC Regulator Switching Frequency 255 300 345 kHz fMIN Regulator Switching Frequency in Drop Out Duty Cycle ≥ 98% 20 25 kHz DCMAX Regulator Maximum Duty Cycle VCSP = VBAT 98 99 %
Gate Drivers (TGATE, BGATE)
VTGATE High (VCLN – VTGATE) ITGATE = –1mA 50 mV VBGATE High CLOAD = 3000pF 4.5 5.6 10 V VTGATE Low (VCLN – VTGATE) CLOAD = 3000pF 4.5 5.6 10 V VBGATE Low IBGATE = 1mA 50 mV TGATE Transition Time TGTR TGATE Rise Time CLOAD = 3000pF, 10% to 90% 50 110 ns TGTF TGATE Fall Time CLOAD = 3000pF, 10% to 90% 50 100 ns BGATE Transition Time BGTR BGATE Rise Time CLOAD = 3000pF, 10% to 90% 40 90 ns BGTF BGATE Fall Time CLOAD = 3000pF, 10% to 90% 40 80 ns VTGATE at Shutdown (VCLN – VTGATE) ITGATE = –1µA, DCIN = 0V, CLN = 12V 100 mV VBGATE at Shutdown IBGATE = 1µA, DCIN = 0V, CLN = 12V 100 mV
Note 1:
Stresses beyond those listed under Absolute Maximum Ratings
Note 3:
Does not include tolerance of current sense resistor or current may cause permanent damage to the device. Exposure to any Absolute programming resistor. Maximum Rating condition for extended periods may affect device
Note 4:
The LTC4007E is guaranteed to meet performance specifications reliability and lifetime. from 0°C to 70°C. Specifications over the –40°C to 85°C operating
Note 2:
See "Test Circuit". temperature range are assured by design, characterization and correlation with statistical process controls. Rev D 4 For more information www.analog.com Document Outline Description Typical Application Absolute Maximum Ratings Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Package Description Typical Application Related Parts Features Applications Typical Application Description Absolute Maximum Ratings Order Information Electrical Characteristics Pin Configuration Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Test Circuit Operation Applications Information Package Description Revision History Typical Application Related Parts