Datasheet LTC4162-F (Analog Devices) - 6

LTC4162-F
ELECTRICAL CHARACTERISTICS The
l
denotes the specifications which apply over the full specified operating junction temperature range, otherwise specifications are at TA = 25°C (Note 4). VIN = 18V, DVCC = 3.3V, RSNSI = 10mΩ, RSNSB = 10mΩ unless otherwise noted. SYMBOL
PARAMETER CONDITIONS
MIN TYP MAX UNITS
tLOW LOW Period of SCL Clock 1.3 µs tHIGH HIGH Period of SCL Clock 0.6 µs tBUF Bus Free Time Between Start and Stop 1.3 µs Conditions tHD,STA Hold Time, After (Repeated) Start 0.6 µs Condition tSU,STA Setup Time after a Repeated Start 0.6 µs Condition tSU,STO Stop Condition Set-Up Time 0.6 µs tHD,DAT(OUT) Output Data Hold Time 0 900 ns tHD,DAT(IN) Input Data Hold Time 0 ns tSU,DAT Data Set-Up Time 100 ns tSP Input Spike Suppression Pulse Width 50 ns
SYNC Pin
VIHSYNC Input High Threshold l 1.5 V VILSYNC Input Low Threshold l 0.2 V
Pin Leakages (NTC, CELLS0, CELLS1, SDA, SCL, SYNC, SMBALERT)
Pin Current –50 50 nA
Note 1:
Stresses beyond those listed under Absolute Maximum Ratings operating junction temperature range are assured by design, may cause permanent damage to the device. Exposure to any Absolute characterization, and correlation with statistical process controls. The Maximum Rating condition for extended periods may affect device I-grade is guaranteed over the full –40°C to 125°C operating junction reliability and lifetime. temperature range. The junction temperature (TJ) is calculated from the
Note 2:
The LTC4162 includes over-temperature protection that is ambient temperature (TA) and power dissipation (PD) according to the intended to protect the device during momentary overload conditions. formula TJ = TA + (PD • θJA). Note that the maximum ambient temperature The maximum rated junction temperature will be exceeded when this consistent with these specifications is determined by specific operating protection is active. Continuous operation above the specified absolute conditions in conjunction with board layout, the rated package thermal maximum operating junction temperature may impair device reliability or resistance and other environmental factors. permanently damage the device.
Note 5:
Charge Current is given by the charger servo voltage, VCSP-CSN,
Note 3:
The safety current limit features of this part are intended to divided by the charge current setting resistor RSNSB. Errors in the value of protect the IC from short term or intermittent fault conditions. Continuous the external resistor contribute directly to the total charge current error. operation above the maximum specified pin current may result in device
Note 6:
Input Current is given by the VCLP-CLN servo voltage divided by degradation or failure. the input current setting resistor RSNSI. Errors in the value of the external
Note 4:
The E-grade is tested under pulsed load conditions such that resistor contribute directly to the total input current error. TJ ≈ TA. The E-grade is guaranteed to meet specifications from 0°C to 85°C junction temperature. Specifications over the –40°C to 125°C Rev 0 6 For more information www.analog.com 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