Rainbow-electronics MAX34440 Manual do Utilizador descarregar pdf (Página 8)

PMBus 6-Channel Power-Supply Manager

MAX34440

C/SMBus INTERFACE ELECTRICAL SPECIFICATIONS

= 2.7V to 5.5V, T

= -40NC to +85NC, unless otherwise noted. Typical values are at V

= 3.3V, T

= +25NC, unless otherwise noted.)

Note 1: All voltages are referenced to ground (V

). Currents entering the IC are specified as positive, and currents exiting the IC

are negative.

Note 2: This does not include pin input/output currents.

Note 3: Guaranteed by design.

C/SMBus Timing

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

SCL Clock Frequency f

SCL

10 100 kHz

Bus Free Time Between STOP

and START Conditions

BUF

4.7

Hold Time (Repeated) START

Condition

HD:STA

4.0

Low Period of SCL t

LOW

4.7

High Period of SCL t

HIGH

4.0

Data Hold Time t

HD:DAT

Receive 0

Transmit 300

Data Setup Time t

SU:DAT

100 ns

START Setup Time t

SU:STA

4.7

SDA and SCL Rise Time t

300 ns

SDA and SCL Fall Time t

300 ns

STOP Setup Time t

SU:STO

4.0

Clock Low Timeout t

25 35 ms

SCL

NOTE: TIMING IS REFERENCED TO V

IL(MAX)

AND V

IH(MIN)

SDA

STOP START REPEATED

START

BUF

HD:STA

HD:DAT

SU:DAT

SU:STO

HD:STA

SU:STA

HIGH

LOW

1 2 3 4 5 6 7 8 9 10 11 12 13 ... 42 43

MAX34440 1
43 43

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