MAX34441 Datasheet, PDF (8/53 Pages) Maxim Integrated Products – PMBus 5-Channel Power-Supply Manager and Intelligent Fan Controller

PMBus 5-Channel Power-Supply Manager
and Intelligent Fan Controller
I²C/SMBus INTERFACE ELECTRICAL SPECIFICATIONS
(VDD = 2.7V to 5.5V, TA = -40NC to +85NC, unless otherwise noted. Typical values are at VDD = 3.3V, TA = +25NC, unless otherwise noted.)
PARAMETER
SCL Clock Frequency
Bus Free Time Between STOP
and START Conditions
SYMBOL
fSCL
tBUF
CONDITIONS
MIN TYP MAX UNITS
10
100
kHz
4.7
Fs
Hold Time (Repeated) START
Condition
tHD:STA
4.0
Fs
Low Period of SCL
High Period of SCL
tLOW
tHIGH
4.7
Fs
4.0
Fs
Data Hold Time
tHD:DAT
Receive
Transmit
0
ns
300
Data Setup Time
START Setup Time
tSU:DAT
tSU:STA
100
ns
4.7
Fs
SDA and SCL Rise Time
tR
300
ns
SDA and SCL Fall Time
tF
300
ns
STOP Setup Time
tSU:STO
4.0
Fs
Clock Low Timeout
tTO
25
35
ms
Note 1: All voltages are referenced to ground (VSS). 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.
I²C/SMBus Timing
SDA
tBUF
tF
tLOW
SCL
tHD:STA
STOP START
tR
tHD:DAT
NOTE: TIMING IS REFERENCED TO VIL(MAX) AND VIH(MIN).
tHIGH
tSU:DAT
tHD:STA
tSU:STA
REPEATED
START
tSP
tSU:STO
8