7
TCA9406
www.ti.com.cn
ZHCSIH8G –OCTOBER 2010–REVISED NOVEMBER 2018
Copyright © 2010–2018, Texas Instruments Incorporated
(1) V
CCA
must be less than or equal to V
CCB
(except during power-on transient time), and V
CCA
must not exceed 3.6 V.
(2) The maximum V
IL
value is provided to ensure that a valid V
OL
is maintained. The V
OL
value is V
IL
plus the voltage drop across the pass-
gate transistor.
6.3 Recommended Operating Conditions
V
CCI
is the supply voltage associated with the input port. V
CCO
is the supply voltage associated with the output port.
V
CCA
V
CCB
MIN MAX UNIT
V
CCA
Supply voltage
(1)
1.65 3.6 V
V
CCB
Supply voltage 2.3 5.5 V
V
IH
High-level
input voltage
A-port I/Os
1.65 V to 1.95 V
2.3 V to 5.5 V
V
CCI
– 0.2 V
CCI
V
2.3 V to 3.6 V V
CCI
– 0.4 V
CCI
B-port I/Os
1.65 V to 3.6 V 2.3 V to 5.5 V
V
CCI
– 0.4 V
CCI
OE input V
CCA
× 0.65 5.5
V
IL
(2)
Low-level
input voltage
A-port I/Os
1.65 V to 3.6 V 2.3 V to 5.5 V
0 0.15
VB-port I/Os 0 0.15
OE input 0 V
CCA
× 0.35
Δt/Δv
Input transition
rise or fall rate
A-port I/Os, push-
pull driving
1.65 V to 3.6 V 2.3 V to 5.5 V
10
ns/VB-port I/Os, push-
pull driving
10
Control input 10
T
A
Operating free-air temperature –40 85 °C
(1) For more information about traditional and new thermal metrics, see the Semiconductor and IC Package Thermal Metrics application
report.
6.4 Thermal Information
THERMAL METRIC
(1)
TCA9406
UNITDCT DCU YZP
8 PINS 8 PINS 8 PINS
R
θJA
Junction-to-ambient thermal resistance 182.6 199.1 105.8 °C/W
R
θJC(top)
Junction-to-case (top) thermal resistance 113.3 72.4 1.6 °C/W
R
θJB
Junction-to-board thermal resistance 94.9 77.8 10.8 °C/W
ψ
JT
Junction-to-top characterization parameter 39.4 6.2 3.1 °C/W
ψ
JB
Junction-to-board characterization parameter 93.9 77.4 10.8 °C/W
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