PCA9509AGM,125 NXP Semiconductors, PCA9509AGM,125 Datasheet - Page 10

• Manufacturer Part Number: PCA9509AGM,125
• Description: Interface - Signal Buffers, Repeaters I2CbusSMBus repeater
• Manufacturer: NXP Semiconductors

Specifications of PCA9509AGM,125

• Rohs: yes
• Operating Supply Voltage: 0.8 V to 5.5 V
• Mounting Style: SMD/SMT
• Package / Case: XQFN-8
• Logic Type: I2C, SMBus
• Maximum Clock Frequency: 400 KHz
• Maximum Operating Frequency: 400 KHz
• Power Dissipation: 100 mW
• Factory Pack Quantity: 4000

NXP Semiconductors
[2]
[5]
10. Dynamic characteristics
Table 6.
V
[1]
[2]
[3]
PCA9509A
Product data sheet
[3]
[4]
[6]
[7]
[4]
Symbol
V
t
t
SR
SR
t
t
t
SR
t
t
PLH
PHL
PLH
PLH2
PHL
en
dis
CC(A)
CC(A)
r
f
f
V
Care must be taken to minimize the resistance in series with the ground pin of the PCA9509A to the ground reference point of the V
supply because there is only 80 mV margin between the power good threshold and the 0.8 V minimum supply voltage at cold
temperature (40 C). Because the B-side I
reduces the V
example, if the resistance is 1.4 , then 1.4   60 mA = 84 mV and 0.8 V  0.084 V = 0.716 V, which is less than the power good
threshold, so the PCA9509A disables when both outputs drive LOW.
The port A current source has a typical value of about 270 A, but varies with both V
As long as the chip ground is common with the input ground reference the driver resistance may be as large as 120 . However, ground
offset rapidly decreases the maximum allowed driver resistance.
Current load is a requirement for ATE testing, not part operation.
Guaranteed by design.
Load capacitance = 50 pF; load resistance on port B = 1.35 k. Port A = no pull-up, and an input falling slew rate of 0.05 V/ns.
V
Typical values were measured with V
Enable pin (EN) should only change state when the bus and the repeater port are in an idle state, that is, the t
the set-up time before START and t
CC(A)
CC(A)
= 0.8 V to 1.5 V; V
= 1.1 V; V
must be  V
+ 1.0 V  V
Parameter
LOW to HIGH propagation delay
HIGH to LOW propagation delay
rising slew rate
falling slew rate
LOW to HIGH propagation delay
LOW to HIGH propagation delay 2
HIGH to LOW propagation delay
falling slew rate
enable time
disable time
Dynamic characteristics
CC(A)
CC(B)
CC(B)
CC(B)
to chip ground voltage and when V
= 3.3 V
.
CC(B)
 1 V, that is, V
= 2.3 V to 5.5 V; GND = 0 V; T
dis
CC(A)
should be considered the hold time after STOP.
CC(A)
= 1.1 V; V
All information provided in this document is subject to legal disclaimers.
OL
= 1.5 V and V
of up to 30 mA flows through the resistance causing a voltage drop that effectively
Conditions
port B to port A
port B to port A
port A; 0.3V
port A; 0.7V
port A to port B
port A to port B;
measured from 0.15V
to 0.5V
port A to port B
port B; 0.7V
EN HIGH to enabled
EN LOW to disabled
Rev. 1 — 29 February 2012
CC(B)
CC(A)
= 3.3 V at T
CC(B)
CC(B)
is less than the power good voltage ~0.72 V, the PCA9509A is disabled. For
amb
= 2.3 V is not a valid combination.
CC(A)
CC(A)
CC(B)
Low power level translating I
on port B
=
amb
to 0.7V
to 0.3V
to 0.3V

40
= 25 C, unless otherwise noted.

CC(A)
C to +85
CC(A)
CC(A)
CC(B)
on port A
CC(A)

C; unless otherwise specified.
and V
[1]
[1]
[1]
[1]
[1]
[1]
[1]
[1]
[4]
[4]
CC(B)
Min
76
106
0.001 0.005
0.007 0.015
79
54
56
0.02
10
300
.
2
C-bus/SMBus repeater
PCA9509A
Typ
146
162
144
147
96
0.05
-
-
en
© NXP B.V. 2012. All rights reserved.
[3]
should be considered
Max
257
259
0.009 V/ns
0.03
228
356
494
0.11
-
-
[1][2]
10 of 23
Unit
ns
ns
V/ns
ns
ns
ns
V/ns
s
ns
CC(A)