Datasheet

TCA9509
www.ti.com SCPS225B –AUGUST 2011– REVISED JANUARY 2012
ELECTRICAL CHARACTERISTICS
V
CCB
= 2.7 V to 5.5 V, V
CCA
= 0.9 V to (V
CCB
-1), T
A
= –40°C to 85°C (unless otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
V
IK
Input clamp voltage I
I
= –18 mA –1.5 –0.5 V
I
OL
= 10 μA,
SDAA, SCLA V
ILA
= V
ILB
= 0 V, 0.18 0.25
V
CCA
= 0.9 to 1.2V
V
OL
Low-level output voltage V
I
OL
= 20 μA,
SDAA, SCLA V
ILA
= V
ILB
= 0 V, 0.2 0.3
1.2V < V
CCA
<= (V
CCB
- 1V)
Low-level input voltage
V
OL
– V
ILc
below low-level output SDAA, SCLA 50 mV
voltage
SDA and SCL low-level
V
ILc
SDAA, SCLA –0.5 0.15 V
input voltage contention
V
OLB
Low-level output voltage SDAB, SCLB I
OL
= 6 mA 0.1 0.2 V
All port A Static high 0.25 0.45 0.9
I
CC
Quiescent supply current for V
CCA
mA
All port A Static low 1.25 3 5
I
CC
Quiescent supply current for V
CCB
All port B Static high 0.5 0.9 1.1 mA
V
I
= V
CCB
±1
SDAB, SCLB
V
I
= 0.2 V 10
V
I
= V
CCA
±1
I
I
Input leakage current SDAA, SCLA μA
V
I
= 0.2 V 10
V
I
= V
CCB
±1
EN
V
I
= 0.2 V –10
SDAB, SCLB 10
High-level output leakage
I
OH
V
O
= 3.6 V μA
current
SDAA, SCLA 10
C
IOA
I/O capacitance of A-side SCLA, SDAA V
I
= 0 V 6 6.5 7 pF
C
IOB
I/O capacitance of B-side SCLB, SDAB V
I
= 0 V 5.5 6 6.2 pF
TIMING REQUIREMENTS
over recommended operating free-air temperature range (unless otherwise noted)
MIN MAX UNIT
t
su
Setup time, EN high before Start condition
(1)
100 ns
t
h
Hold time, EN high after Stop condition
(1)
100 ns
(1) EN should change state only when the global bus and the repeater port are in an idle state.
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