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PCA9545ABS,118

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24P25-P27P28-P30P31-P32
PCA9545A_45B_45C All information provided in this document is subject to legal disclaimers. © NXP Semiconductors N.V. 2014. All rights reserved.
Product data sheet Rev. 9 — 5 May 2014 13 of 32
NXP Semiconductors
PCA9545A/45B/45C
4-channel I
2
C-bus switch with interrupt logic and reset
8. Application design-in information
(1) If the device generating the interrupt has an open-drain output structure or can be 3-stated, a
pull-up resistor is required.
If the device generating the interrupt has a totem-pole output structure and cannot be 3-stated, a
pull-up resistor is not required.
The interrupt inputs should not be left floating.
Fig 16. Typical application
PCA9545A
SD0
SC0
A1
A0
V
SS
SDA
SCL
RESET
V
DD
= 3.3 VV
DD
= 2.7 V to 5.5 V
I
2
C-bus/SMBus master
002aab171
SDA
SCL
channel 0
V = 2.7 V to 5.5 V
INT INT0
see note
(1)
SD1
SC1
channel 1
V = 2.7 V to 5.5 V
INT1
see note
(1)
SD2
SC2
channel 2
V = 2.7 V to 5.5 V
INT2
see note
(1)
SD3
SC3
channel 3
V = 2.7 V to 5.5 V
INT3
see note
(1)
PCA9545A_45B_45C All information provided in this document is subject to legal disclaimers. © NXP Semiconductors N.V. 2014. All rights reserved.
Product data sheet Rev. 9 — 5 May 2014 14 of 32
NXP Semiconductors
PCA9545A/45B/45C
4-channel I
2
C-bus switch with interrupt logic and reset
9. Limiting values
[1] The performance capability of a high-performance integrated circuit in conjunction with its thermal
environment can create junction temperatures which are detrimental to reliability. The maximum junction
temperature of this integrated circuit should not exceed 125 C.
10. Thermal characteristics
Table 6. Limiting values
In accordance with the Absolute Maximum Rating System (IEC 60134). Voltages are referenced to
V
SS
(ground = 0 V).
Symbol Parameter Conditions Min Max Unit
V
DD
supply voltage 0.5 +7.0 V
V
I
input voltage 0.5 +7.0 V
I
I
input current - 20 mA
I
O
output current - 25 mA
I
DD
supply current - 100 mA
I
SS
ground supply current - 100 mA
P
tot
total power dissipation - 400 mW
T
j(max)
maximum junction temperature
[1]
- 125 C
T
stg
storage temperature 60 +150 C
T
amb
ambient temperature operating 40 +85 C
Table 7. Thermal characteristics
Symbol Parameter Conditions Typ Unit
R
th(j-a)
thermal resistance from junction
to ambient
HVQFN20 package 32 C/W
SO20 package 90 C/W
TSSOP20 package 146 C/W
PCA9545A_45B_45C All information provided in this document is subject to legal disclaimers. © NXP Semiconductors N.V. 2014. All rights reserved.
Product data sheet Rev. 9 — 5 May 2014 15 of 32
NXP Semiconductors
PCA9545A/45B/45C
4-channel I
2
C-bus switch with interrupt logic and reset
11. Static characteristics
[1] For operation between published voltage ranges, refer to the worst-case parameter in both ranges.
[2] V
DD
must be lowered to 0.2 V for at least 5 s in order to reset part.
Table 8. Static characteristics at V
DD
=2.3V to 3.6V
V
SS
= 0 V; T
amb
=
40
C to +85
C; unless otherwise specified. See Table 9 on page 16 for V
DD
= 4.5 V to 5.5 V
[1]
.
Symbol Parameter Conditions Min Typ Max Unit
Supply
V
DD
supply voltage 2.3 - 3.6 V
I
DD
supply current Operating mode; V
DD
= 3.6 V; no load;
V
I
=V
DD
or V
SS
; f
SCL
= 100 kHz
-1030A
I
stb
standby current Standby mode; V
DD
= 3.6 V; no load;
V
I
=V
DD
or V
SS
-0.11 A
V
POR
power-on reset voltage no load; V
I
=V
DD
or V
SS
[2]
-1.62.1V
Input SCL; input/output SDA
V
IL
LOW-level input voltage 0.5 - +0.3V
DD
V
V
IH
HIGH-level input voltage 0.7V
DD
-6 V
I
OL
LOW-level output current V
OL
=0.4V 3 7 - mA
V
OL
=0.6V 6 10 - mA
I
L
leakage current V
I
=V
DD
or V
SS
1-+1 A
C
i
input capacitance V
I
=V
SS
-1013pF
Select inputs A0, A1, INT0
to INT3, RESET
V
IL
LOW-level input voltage 0.5 - +0.3V
DD
V
V
IH
HIGH-level input voltage 0.7V
DD
-6 V
I
LI
input leakage current pin at V
DD
or V
SS
1-+1 A
C
i
input capacitance V
I
=V
SS
-1.63 pF
Pass gate
R
on
ON-state resistance V
DD
=3.6V; V
O
=0.4V; I
O
=15mA 5 11 30
V
DD
= 2.3 V to 2.7 V; V
O
=0.4V;
I
O
=10mA
71655
V
o(sw)
switch output voltage V
i(sw)
=V
DD
=3.3V; I
o(sw)
= 100 A- 1.9- V
V
i(sw)
=V
DD
= 3.0 V to 3.6 V;
I
o(sw)
= 100 A
1.6 - 2.8 V
V
i(sw)
=V
DD
=2.5V; I
o(sw)
= 100 A- 1.5- V
V
i(sw)
=V
DD
= 2.3 V to 2.7 V;
I
o(sw)
= 100 A
1.1 - 2.0 V
I
L
leakage current V
I
=V
DD
or V
SS
1-+1 A
C
io
input/output capacitance V
I
=V
SS
-35 pF
INT
output
I
OL
LOW-level output current V
OL
=0.4V 3 - - mA
I
OH
HIGH-level output current - - +10 A
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PCA9545ABS,118

Mfr. #:
Buy PCA9545ABS,118
Manufacturer:
NXP Semiconductors
Description:
Multiplexer Switch ICs I2C SWITCH 4CH
Lifecycle:
New from this manufacturer.
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