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UCD9111RHB Datasheet(PDF) 9 Page - Texas Instruments

Part # UCD9111RHB
Description  SINGLE PHASE SYNCHRONOUS BUCK CONTROLLER
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

UCD9111RHB Datasheet(HTML) 9 Page - Texas Instruments

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UCD9111
SEPEMBER 2006
9
www.ti.com
High level output voltage (VOH)
I PGOOD = -5 mA
2.8
V
PMBus AERT
PMBus Alert assertion delay
TBD
μs
PMBus Alert deassertion delay
TBD
μs
Low level output voltage (VOL)
I alert = 5 mA
0.4
V
High level output voltage (VOH)
I alert = -5 mA
2.8
V
THERMAL SHUTDOWN
Shutdown temperature
Junction temperature
TBD
ºC
Hysteresis
TBD
ºC
I/O CHARACTERISTICS
High input voltage, VIH
VD33=3.3V
2
3.45
V
Low input voltage, VIL
VD33=3.3V
0.8
V
Input hysteresis voltage.
VD33=3.3V
0.3
V
Output Voltage High (VOH)
VD33=3.3V, IOH = -5mA
2.8
Output Voltage Low (VOL)
VD33 = 3.3V, IOL = 5mA
0.4
PMBus/SMBus/I2C
FSMB
PMBus/SMBus
operating frequency
Slave mode, SMBC 50%
duty cycle
100
kHz
FI2C
I
2C operating frequency
Slave mode, SCL 50%
duty cycle
400
kHz
t(BUF)
Bus free time between
start and stop
4.7
us
t(HD:STA)
Hold time after
(repeated) start
4.0
us
t(SU:STA)
Repeated start setup
time
4.7
us
t(SU:STO)
Stop setup time
4.0
us
t(HD:DAT)
Data hold time
Receive Mode
0
ns
Transmit Mode
300
ns
t(SU:DAT)
Data setup time
250
ns
t(TIMEOUT)
Error signal/detect
(1)
25
35
ms
t(LOW)
Clock low period
4.7
us
t(HIGH)
Clock high period
(2)
4.0
50
us


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