ADP8860ACPZ-R7 datasheet(4/52 Pages) AD

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ADP8860

Rev. 0 | Page 4 of 52

Parameter

Symbol

Test Conditions/Comments

Min

Typ

Max

Unit

AMBIENT LIGHT SENSING

COMPARATORS

Ambient Light Sensor Current

IALS

CMP_IN = VD6 = 2.8 V, Bit CMP2_SEL = 1

0.70

1.08

1.33

DAC Bit Step

Threshold L2 Level

IL2BIT

IL2BIT = IALS/250

4.3

μA

Threshold L3 Level

IL3BIT

IL3BIT = IALS/2000

0.54

μA

FAULT PROTECTION

Startup Charging Current Source

ISS

VIN = 3.6 V, VOUT = 0.8 × VIN

2.5

3.75

5.5

Output Voltage Threshold

VOUT

Exit Soft Start

VOUT(START)

VOUT rising

0.92 × VIN

Short-Circuit Protection

VOUT(SC)

VOUT falling

0.55 × VIN

Output Overvoltage Protection

VOVP

Activation Level

5.8

OVP Recovery Hysteresis

500

Thermal Shutdown

Threshold

TSD

150

°C

Hysteresis

TSD(HYS)

°C

Isolation from Input to Output

During Fault

IOUTLKG

VIN = 5.5 V, VOUT = 0 V, Bit nSTBY = 0

1.5

μA

Time to Validate a Fault

tFAULT

μs

I2C INTERFACE

VDDIO Voltage Operating Range

VDDIO

5.5

Logic Low Input2

VIL

VIN = 3.6 V

0.6

Logic High Input3

VIH

VIN = 3.6 V

1.30

I2C TIMING SPECIFICATIONS

Guaranteed by design

Delay from Reset Deassertion to

I2C access

tRESET

μs

SCL Clock Frequency

fSCL

400

KHz

SCL High Time

tHIGH

0.6

μs

SCL Low Time

tLOW

1.3

μs

Setup Time

Data

tSU, DAT

100

Repeated Start

tSU, STA

0.6

μs

Stop Condition

tSU, STO

0.6

μs

Hold Time

Data

tHD, DAT

0.9

μs

Start/Repeated Start

tHD, STA

0.6

μs

Bus Free Time (Stop and Start

Conditions)

tBUF

1.3

μs

Rise Time (SCL and SDA)

20 + 0.1 CB

300

Fall Time (SCL and SDA)

20 + 0.1 CB

300

Pulse Width of Suppressed Spike

tSP

Capacitive Load Per Bus Line

400

1 Current source matching is calculated by dividing the difference between the maximum and minimum current from the sum of the maximum and minimum.

2 VIL is a function of the input voltage. See

in the

section for typical values over operating ranges.

Figure 16

Typical Performance Characteristics

3 VIH is a function of the input voltage. See

in the

section for typical values over operating ranges.

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