Datasheet LTM8062, LTM8062A (Analog Devices) - 3

LTM8062/LTM8062A
elecTrical characTerisTics The
l
denotes the specifications which apply over the full internal operating temperature range, otherwise specifications are at TA = 25°C. RUN = 2V. PARAMETER CONDITIONS MIN TYP MAX UNITS
VIN Maximum Operating Voltage 32 V VIN Start Voltage VBAT = 4.2V (Note 3) 7.5 V VIN OVLO Threshold VIN Rising 32 35 40 V VIN OVLO Hysteresis 1 V VIN UVLO Threshold VIN Rising 4.6 4.95 V VIN UVLO Hysteresis 0.3 V VINA to VIN Diode Forward Voltage Drop VINA Current = 2A 0.55 V Maximum BAT Float Voltage LTM8062 14.7 V LTM8062A 19.3 V Input Supply Current Standby Mode 85 µA RUN = 0, VINREG = 15V 18 µA Maximum BAT Charging Current (Note 4) 1.8 2.1 A ADJ Float Reference Voltage 3.275 3.3 3.325 V l 3.25 3.34 V ADJ Recharge Threshold Voltage Threshold Relative to ADJ Float Reference 82.5 mV ADJ Precondition Threshold Voltage ADJ Rising 2.3 V ADJ Precondition Threshold Hysteresis Voltage Relative to ADJ Precondition Threshold 95 mV ADJ Input Bias Current Charging Terminated 65 nA CV Operation 110 nA VINREG Reference Voltage ADJ = 3V, IBAT = 1A l 2.61 2.7 2.83 V VINREG Bias Current VINREG = 2.7V 27 µA NTC Range Limit (High) Voltage VNTC Rising 1.25 1.36 1.45 V NTC Range Limit (Low) Voltage VNTC Falling 0.27 0.29 0.315 V NTC Disable Impedance 250 500 kΩ NTC Bias Current VNTC = 0.8V 45 53 µA NTC Threshold Hysteresis For Both High and Low Range Limits 20 % RUN Threshold Voltage VRUN Rising 1.15 1.20 1.25 V RUN Hysteresis Voltage 120 mV RUN Input Bias Current –10 nA CHRG, FAULT Output Low Voltage 10mA Load 0.4 V TMR Charge/Discharge Current 25 µA TMR Disable Threshold Voltage 0.25 V Operating Frequency 0.85 1 1.15 MHz
Note 1:
Stresses beyond those listed under Absolute Maximum Ratings the maximum internal temperature is determined by specific operating may cause permanent damage to the device. Exposure to any Absolute conditions in conjunction with board layout, the rated package thermal Maximum Rating condition for extended periods may affect device resistance and other environmental factors. reliability and lifetime.
Note 3:
This parameter is valid for programmed output battery float
Note 2:
The LTM8062E/LTM8062AE are guaranteed to meet performance voltages ≤ 4.2V. For other float voltages, VIN Start is 3.3V above the specifications from 0°C to 125°C internal. Specifications over the full programmed output battery float voltage. This parameter is guaranteed by –40°C to 125°C internal operating temperature range are assured by design, characterization, and correlation with statistical process controls. design, characterization and correlation with statistical process controls.
Note 4:
The maximum BAT charging current is reduced by thermal The LTM8062I/LTM8062AI are guaranteed to meet specifications over foldback. See the Typical Performance Characteristics for details. the full –40°C to 125°C internal operating temperature range. Note that 8062fd For more information www.linear.com/LTM8062 3 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Applications Information Typical Application Related Parts