Datasheet LT3652 (Analog Devices) - 4
| 制造商 | Analog Devices |
| 描述 | Power Tracking 2A Battery Charger for Solar Power |
| 页数 / 页 | 26 / 4 — ELECTRICAL CHARACTERISTICS The. denotes the specifications which apply … |
| 文件格式/大小 | PDF / 534 Kb |
| 文件语言 | 英语 |
ELECTRICAL CHARACTERISTICS The. denotes the specifications which apply over the full operating
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LT3652
ELECTRICAL CHARACTERISTICS The
l
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C (Note 2). VIN = 20V, Boost – SW = 4V, SHDN = 2V, VFB = 3.3V, CTIMER = 0.68µF. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
tTIMER Full Charge Cycle Timeout 3 hr Precondition Timeout 22.5 min Timer Accuracy l –10 10 % fO Operating Frequency 1 MHz DC Duty Cycle Range Continuous Operation l 15 90 %
Note 1:
Stresses beyond those listed under Absolute Maximum Ratings
Note 3:
VIN minimum voltages below the start threshold are only may cause permanent damage to the device. Exposure to any Absolute supported if (VBOOST-VSW) > 2V. Maximum Rating condition for extended periods may affect device
Note 4:
This parameter is valid for programmed output battery float reliability and lifetime. voltages ≤ 4.2V. VIN operating range minimum is 0.75V above the
Note 2:
The LT3652EDD is guaranteed to meet performance specifications programmed output battery float voltage (VBAT(FLT) + 0.75V). VIN Start from 0°C to 125°C junction temperature. Specifications over the –40°C Voltage is 3.3V above the programmed output battery float voltage to 125°C operating junction temperature range are assured by design, (VBAT(FLT) + 3.3V). characterization, and correlation with statistical process controls. The
Note 5:
Output battery float voltage (VBAT(FLT)) programming resistor LT3652IDD specifications are guaranteed over the full –40°C to 125°C divider equivalent resistance = 250k compensates for input bias current. operating junction temperature range. Note that the maximum ambient
Note 6:
All V temperature consistent with these specifications is determined by specific FB voltages measured through 250k series resistance. operating conditions in conjunction with board layout, the rated package
Note 7:
VSENSE(DC) is reduced by thermal foldback as junction temperature thermal impedance and other environmental factors. approaches 125°C. 3652fe 4 For more information www.linear.com/LT3652 Document Outline Description Typical Application Absolute Maximum Ratings Pin Configuration Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Applications Information Package Description Typical Application Related Parts
ELECTRICAL CHARACTERISTICS The
l
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C (Note 2). VIN = 20V, Boost – SW = 4V, SHDN = 2V, VFB = 3.3V, CTIMER = 0.68µF. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
tTIMER Full Charge Cycle Timeout 3 hr Precondition Timeout 22.5 min Timer Accuracy l –10 10 % fO Operating Frequency 1 MHz DC Duty Cycle Range Continuous Operation l 15 90 %
Note 1:
Stresses beyond those listed under Absolute Maximum Ratings
Note 3:
VIN minimum voltages below the start threshold are only may cause permanent damage to the device. Exposure to any Absolute supported if (VBOOST-VSW) > 2V. Maximum Rating condition for extended periods may affect device
Note 4:
This parameter is valid for programmed output battery float reliability and lifetime. voltages ≤ 4.2V. VIN operating range minimum is 0.75V above the
Note 2:
The LT3652EDD is guaranteed to meet performance specifications programmed output battery float voltage (VBAT(FLT) + 0.75V). VIN Start from 0°C to 125°C junction temperature. Specifications over the –40°C Voltage is 3.3V above the programmed output battery float voltage to 125°C operating junction temperature range are assured by design, (VBAT(FLT) + 3.3V). characterization, and correlation with statistical process controls. The
Note 5:
Output battery float voltage (VBAT(FLT)) programming resistor LT3652IDD specifications are guaranteed over the full –40°C to 125°C divider equivalent resistance = 250k compensates for input bias current. operating junction temperature range. Note that the maximum ambient
Note 6:
All V temperature consistent with these specifications is determined by specific FB voltages measured through 250k series resistance. operating conditions in conjunction with board layout, the rated package
Note 7:
VSENSE(DC) is reduced by thermal foldback as junction temperature thermal impedance and other environmental factors. approaches 125°C. 3652fe 4 For more information www.linear.com/LT3652 Document Outline Description Typical Application Absolute Maximum Ratings Pin Configuration Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Applications Information Package Description Typical Application Related Parts