TCA9517A Datasheet, PDF (5/17 Pages) Texas Instruments – LEVEL-TRANSLATING I2C BUS REPEATER

TCA9517A
www.ti.com
SCPS245A – DECEMBER 2012 – REVISED APRIL 2013
ELECTRICAL CHARACTERISTICS
V_CCB = 2.7 V to 5.5 V, GND = 0 V, T_A = –40°C to 85°C (unless otherwise noted)
PARAMETER
TEST CONDITIONS
V_CCB
V_IK
Input clamp voltage
I_I = –18 mA
2.7 V to 5.5 V
V_OL
Low-level output
voltage
SDAB, SCLB
I_OL = 100 μA or 6 mA,
V_ILA = V_ILB = 0 V
2.7 V to 5.5 V
SDAA, SCLA I_OL = 6 mA
Low-level input voltage
V_OL – V_ILc below low-level output SDAB, SCLB guaranteed by design
voltage
2.7 V to 5.5 V
V_ILC
SDA and SCL low-level
input voltage contention
SDAB, SCLB
2.7 V to 5.5 V
Both channels low,
SDAA = SCLA = GND and
I_CC
Quiescent supply current for V_CCA
SDAB = SCLB = open, or
SDAA = SCLA = open and
SDAB = SCLB = GND
I_CC
Quiescent supply current
Both channels high,
SDAA = SCLA = V_CCA and
SDAB = SCLB = V_CCB and
EN = V_CCB
Both channels low,
SDAA = SCLA = GND and
SDAB = SCLB = open
5.5 V
In contention,
SDAA = SCLA = GND and
SDAB = SCLB = GND
SDAB, SCLB ^{VI = VCCB}
V_I = 0.2 V
I_I
Input leakage current
SDAA, SCLA ^{VI = VCCB}
V_I = 0.2 V
EN
V_I = V_CCB
V_I = 0.2 V
I_OH
High-level output
leakage current
SDAB, SCLB
SDAA, SCLA ^{VO = 3.6 V}
2.7 V to 5.5 V
2.7 V to 5.5 V
EN
V_I = 3 V or 0 V
C_I
Input capacitance
SCLA, SCLB V_I = 3 V or 0 V
3.3 V
3.3 V
0V
C_IO
Input/output
capacitance
SDAA, SDAB V_I = 3 V or 0 V
3.3 V
0V
MIN TYP MAX UNIT
–1.2 V
0.45 0.52
0.1
0.6
V
0.2
70
mV
0.45
V
1 mA
1.5
5
1.5
5 ^mA
3
5
±1
10
±1
μA
10
±1
–10
–30
10
μA
10
6
10
8
13 pF
7
11
8
13
pF
7
11
TIMING REQUIREMENTS
over recommended operating free-air temperature range (unless otherwise noted)
t_su
Setup time, EN high before Start condition⁽¹⁾
t_h
Hold time, EN high after Stop condition⁽¹⁾
(1) EN should change state only when the global bus and the repeater port are in an idle state.
MIN
MAX UNIT
100
ns
100
ns
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