FAN5355BUC79X datasheet(9/32 Pages) ONSEMI

Part #	FAN5355BUC79X

Description	5 A, 2.4 MHz, Digitally Programmable TinyBuck Regulator

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FAN53555

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Table 11. I2C TIMING SPECIFICATIONS

Guaranteed by design.

Symbol

Unit

Max.

Typ.

Min.

Condition

Parameter

tFDA

SDA Fall Time

Standard Mode

20+0.1CB

300

ns

Fast Mode

20+0.1CB

300

Fast Mode Plus

20+0.1CB

120

High−Speed Mode, CB ≤ 100 pF

10

80

High−Speed Mode, CB ≤ 400 pF

20

160

tSU;STO

Stop Condition Setup Time

Standard Mode

4

ms

Fast Mode

600

ns

Fast Mode Plus

120

ns

High−Speed Mode

160

ns

CB

Capacitive Load for SDA and SCL

400

pF

TIMING DIAGRAMS

START

REPEATED

START

SCL

SDA

t

F

t

HD;STA

t

LOW

t

R

t

HD;DAT

t

HIGH

T

SU;DAT

t

SU;STA

t

HD;STO

t

BUF

START

STOP

t

HD;STA

Figure 4. I2C Interface Timing for Fast Plus, Fast, and Slow Modes

REPEATED

START

SCLH

SDAH

t

FDA

t

LOW

t

RCL1

t

HD;DAT

t

HIGH

t

SU;STO

REPEATED

START

t

RDA

t

FCL

t

SU;DAT

t

RCL

STOP

= MCS Current Source Pull−up

= R

P Resistor Pull−up

note A

Note A: First rising edge of SCLH after Repeated Start and after each ACK bit.

t

HD;STA

t

SU;STA

Figure 5. I2C Interface Timing for High−Speed Mode

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