Data Sheet

V
DPUX
(V)
R
p(min)
(kOhm)
0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5
0
0.2
0.4
0.6
0.8
1
1.2
1.4
1.6
1.8
D009
V
DPUX
> 2V
V
DPUX
<= 2
C
b
(pF)
R
p(max)
(kOhm)
0 50 100 150 200 250 300 350 400 450
0
5
10
15
20
25
D008
Standard-mode
Fast-mode
2
Maximum
Typical
Minimum
V
CC
(V)
4.543.532.5 5 5.5
1
5
4.5
4
3.5
3
2.5
2
1.5
V
pass
(V)
18
PCA9546A
SCPS148G –OCTOBER 2005–REVISED MAY 2016 www.ti.com
Product Folder Links: PCA9546A
Submit Documentation Feedback Copyright © 2005–2016, Texas Instruments Incorporated
Typical Application (continued)
9.2.3 PCA9546A Application Curves
Space
space
space
Space
space
space
Figure 12. Pass-Gate Voltage (V
pass
) vs Supply Voltage
(V
CC
) at Three Temperature Points
Standard-mode
(f
SCL
= 100 kHz, t
r
= 1 µs)
Fast-mode
(f
SCL
= 400 kHz, t
r
= 300 ns)
Figure 13. Maximum Pull-Up resistance (R
p(max)
) vs Bus
Capacitance (C
b
)
V
OL
= 0.2×V
DPUX
, I
OL
= 2 mA when V
DPUX
≤ 2 V
V
OL
= 0.4 V, I
OL
= 3 mA when V
DPUX
> 2 V
Figure 14. Minimum Pull-Up Resistance (R
p(min)
) vs Pull-Up Reference Voltage (V
DPUX
)