Datasheet LTC4162-L (Analog Devices) - 6

LTC4162-L
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 Serial Port, SDA, SCL, SMBALERT
DVCC Logic Reference Level l 1.8 5.5 V IDVCCQ DVCC Current SCL/SDA = DVCC, 0kHz 0 µA ADDRESS I2C Address 0b1101000[R/W] VIHI2C Input High Threshold 70 % DVCC VILI2C Input Low Threshold 30 % DVCC VOLI2C Digital Output Low (SDA/SMBALERT) ISDA/SMBALERT = 3mA 400 mV FSCL SCL Clock Frequency 400 kHz 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 0°C to 85°C junction temperature. Specifications over the –40°C to may cause permanent damage to the device. Exposure to any Absolute 125°C operating junction temperature range are assured by design, Maximum Rating condition for extended periods may affect device characterization, and correlation with statistical process controls. The reliability and lifetime. I-grade is guaranteed over the full –40°C to 125°C operating junction
Note 2:
The LTC4162 includes over-temperature protection that is temperature range. The junction temperature (TJ) is calculated from the intended to protect the device during momentary overload conditions. ambient temperature (TA) and power dissipation (PD) according to the The maximum rated junction temperature will be exceeded when this formula TJ = TA + (PD • θJA). Note that the maximum ambient temperature protection is active. Continuous operation above the specified absolute consistent with these specifications is determined by specific operating maximum operating junction temperature may impair device reliability or conditions in conjunction with board layout, the rated package thermal permanently damage the device. resistance and other environmental factors.
Note 3:
The safety current limit features of this part are intended to
Note 5:
Charge Current is given by the charger servo voltage, VCSP-CSN, protect the IC from short term or intermittent fault conditions. Continuous divided by the charge current setting resistor RSNSB. Errors in the value of operation above the maximum specified pin current may result in device the external resistor contribute directly to the total charge current error. degradation or failure.
Note 6:
Input Current is given by the VCLP-CLN servo voltage divided by
Note 4:
The E-grade is tested under pulsed load conditions such the input current setting resistor RSNSI. Errors in the value of the external that T resistor contribute directly to the total input current error. J ≈ TA. The E-grade is guaranteed to meet specifications from Rev A 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 Revision History Typical Application Related Parts