LTM4719 datasheet(13/53 Pages) AD

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Data Sheet

LTM4719

analog.com

Rev. 0

13 of 53

The LTM4719 is tested under pulsed load conditions such that TJ ≈ TA. The LTM4719E is guaranteed to meet

performance specifications over the 0°C to 125°C internal operating temperature range. Specification over the –

40°C to 125°C operation junction temperature range is assured by design, characterization, and correlation with

statistical process controls. The LTM4719I specifications are guaranteed over the –40°C to 125°C operating

junction temperature range. Note that the maximum ambient temperature consistent with these specifications

is determined by the specific operating conditions in conjunction with board layout, the rated package thermal

resistance, and other environmental factors.

Coulomb counter and peak current limit accuracy is at its best for VINC voltages above 2V. The voltage and

temperature monitor accuracy are at their best down to 1.8V.

The equivalent charge of a least-significant bit (LSB) in the accumulated charge register depends on the IPEAK

setting and the internal pre-scaling factor M. Note that 1mA × hr = 3.6A × s = 3.6C

The specified accuracy of qLSB in percent is better than that of the corresponding IPEAK because the time base

used for calculating coulombs is internally adjusted to compensate for errors in the actual IPEAK value. The total

coulomb counter error specified includes any inaccuracy in qLSB.

Data tested on the bench.

Timing Diagram

Figure 3. Definition of Timing on I2C Bus

START

CONDITION

STOP

CONDITION

REPEATED START

CONDITION

tSU(STO)

tHD(SDA)

tSP

tBUF

tHD(STA)

tHD(DAT)

tSU(STA)

tSU(DAT)

tLOW

tHIGH

SDA

SCL

START

CONDITION

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