ADP5501 datasheet(4/28 Pages) AD

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ADP5501

Parameter

Symbol

Conditions1

Min

Typ

Max

Unit

Hold Time for Start/Repeated Start

tHD, STA

0.6

μs

Bus Free Time for Stop and Start Condition

tBUF

1.3

μs

Setup Time for Stop Condition

tSU, STO

0.6

μs

Rise Time for SCL and SDA

20 + 0.1 CB

300

Fall Time for SCL and SDA

20 + 0.1 CB

300

Pulse Width of Suppressed Spike

tSP

μs

Capacitive Load for Each Bus Line

CB5

400

SDA

SCL

1 All limits at temperature extremes are guaranteed via correlation using standard statistical quality control (SQC). Typical values are at TA = 25°C, VBAT = 3.6 V.

2 3.3 V or VBAT, whichever is smaller.

3 Internal LDO powered down, digital blocks inactive, I2C inactive, boost inactive.

4 Internal LDO powered up, digital blocks active, I2C active, boost inactive.

5 CB is the total capacitance of one bus line in picofarads (pF).

Rev. 0 | Page 4 of 28

S = START CONDITION

Sr = REPEATED START CONDITION

P = STOP CONDITION

tLOW

tHD, DAT

tHIGH

tSU, DAT

tSU, STA

tHD, STA

tSP

tSU, STO

tBUF

Figure 2. Interface Timing Diagram

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