Datasheet LTC4040 (Analog Devices) - 5
| Fabricante | Analog Devices |
| Descripción | 2.5A Battery Backup Power Manager |
| Páginas / Página | 26 / 5 — elecTrical characTerisTics The. denotes the specifications which apply … |
| Formato / tamaño de archivo | PDF / 1.4 Mb |
| Idioma del documento | Inglés |
elecTrical characTerisTics The. denotes the specifications which apply over the specified operating
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LTC4040
elecTrical characTerisTics The
l
denotes the specifications which apply over the specified operating junction temperature range, otherwise specifications are at TA = 25°C. (Note 3) VIN = 5V, VBAT = 3.6V, RPROG = 2k, unless otherwise noted. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS Open-Drain Output (CHRG, RST, FAULT)
Pin Leakage Current V = 5V 1 µA Pin Output Low Voltage I = 5mA 65 mV
Overvoltage Protection
VOV(CUTOFF) Overvoltage Protection Threshold Rising Threshold, ROVSNS = 6.2k 6.1 6.4 6.7 V VOVGT IGATE Output Voltage Active Input Voltage < VOV(CUTOFF) 1.88 • 12 V VOVSNS VOVGT(LOAD) IGATE Voltage Under Load 5V Through 6.2k Into OVSNS, IIGATE = 1µA 8 8.6 V IOVSNSQ OVSNS Quiescent Current VOVSNS = 5V 40 µA OVSNS Quiescent Current at Shutdown BSTOFF = H, CHGOFF = H 25 µA IGATE Time to Reach Regulation CIGATE = 2.2nF 3.5 ms
Note 1:
Stresses beyond those listed under Absolute Maximum Ratings
Note 3:
The LTC4040E is tested under pulsed load conditions such that may cause permanent damage to the device. Exposure to any Absolute TJ ≈ TA. The LTC4040E is guaranteed to meet performance specifications Maximum Rating condition for extended periods may affect device from 0°C to 85°C junction temperature. Specifications over the –40°C reliability and lifetime. to 125°C operating junction temperature range are assured by design,
Note 2:
This IC includes overtemperature protection that is intended characterization and correlation with statistical process control. The to protect the device during momentary overload conditions. Junction LTC4040I is guaranteed over the full –40°C to 125°C operating junction temperature will exceed 125°C when overtemperature protection is active. temperature range. The junction temperature (TJ in °C) is calculated from Continuous operation above the specified maximum operating junction the ambient temperature (TA, in °C) and power dissipation (PD, in watts) temperature may impair device reliability. according to the formula: TJ = TA + (PD • θJA) where the package thermal impedance θJA = 43°C/W. Note that the maximum ambient temperature consistent with these specifications is determined by specific operating conditions in conjunction with board layout, the rated package thermal resistance and other environmental factors. 4040fb For more information www.linear.com/LTC4040 5 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Pin Configuration Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Typical Application Package Description Revision History Typical Application Related Parts
elecTrical characTerisTics The
l
denotes the specifications which apply over the specified operating junction temperature range, otherwise specifications are at TA = 25°C. (Note 3) VIN = 5V, VBAT = 3.6V, RPROG = 2k, unless otherwise noted. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS Open-Drain Output (CHRG, RST, FAULT)
Pin Leakage Current V = 5V 1 µA Pin Output Low Voltage I = 5mA 65 mV
Overvoltage Protection
VOV(CUTOFF) Overvoltage Protection Threshold Rising Threshold, ROVSNS = 6.2k 6.1 6.4 6.7 V VOVGT IGATE Output Voltage Active Input Voltage < VOV(CUTOFF) 1.88 • 12 V VOVSNS VOVGT(LOAD) IGATE Voltage Under Load 5V Through 6.2k Into OVSNS, IIGATE = 1µA 8 8.6 V IOVSNSQ OVSNS Quiescent Current VOVSNS = 5V 40 µA OVSNS Quiescent Current at Shutdown BSTOFF = H, CHGOFF = H 25 µA IGATE Time to Reach Regulation CIGATE = 2.2nF 3.5 ms
Note 1:
Stresses beyond those listed under Absolute Maximum Ratings
Note 3:
The LTC4040E is tested under pulsed load conditions such that may cause permanent damage to the device. Exposure to any Absolute TJ ≈ TA. The LTC4040E is guaranteed to meet performance specifications Maximum Rating condition for extended periods may affect device from 0°C to 85°C junction temperature. Specifications over the –40°C reliability and lifetime. to 125°C operating junction temperature range are assured by design,
Note 2:
This IC includes overtemperature protection that is intended characterization and correlation with statistical process control. The to protect the device during momentary overload conditions. Junction LTC4040I is guaranteed over the full –40°C to 125°C operating junction temperature will exceed 125°C when overtemperature protection is active. temperature range. The junction temperature (TJ in °C) is calculated from Continuous operation above the specified maximum operating junction the ambient temperature (TA, in °C) and power dissipation (PD, in watts) temperature may impair device reliability. according to the formula: TJ = TA + (PD • θJA) where the package thermal impedance θJA = 43°C/W. Note that the maximum ambient temperature consistent with these specifications is determined by specific operating conditions in conjunction with board layout, the rated package thermal resistance and other environmental factors. 4040fb For more information www.linear.com/LTC4040 5 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Pin Configuration Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Typical Application Package Description Revision History Typical Application Related Parts