Datasheet
P82B715_8 © NXP B.V. 2009. All rights reserved.
Product data sheet Rev. 08 — 9 November 2009 13 of 23
NXP Semiconductors
P82B715
I
2
C-bus extender
9. Limiting values
[1] Voltages with respect to GND.
The bus voltages quoted are DC voltages and are allowed to be exceeded during any negative transient
undershoot that may be generated by normal operation of P82B715, P82B96 or PCA9600 when any of
those parts are driving long PCB traces, wiring or cables. The Lx/Sx pins have internal protective diodes to
GND that will conduct when the applied bus voltage exceeds approximately −0.6 V and these diodes will
limit the amplitude of the negative undershoot. If required, fitting additional Schottky diodes such as
BAT54A at Sx/Sy may be used to further ensure any undershoot at these pins does not cause conduction of
the diodes inside other ICs connected to Sx/Sy.
10. Characteristics
Table 4. Limiting values
In accordance with the Absolute Maximum Rating System (IEC 60134).
Symbol Parameter Conditions Min Max Unit
V
CC
supply voltage
[1]
−0.3 +12 V
V
bus
voltage range I
2
C-bus, SCL or SDA
[1]
0V
CC
V
V
buff
voltage range buffered bus
[1]
0V
CC
V
I DC current (any pin) - 60 mA
P
tot
total power dissipation - 300 mW
T
stg
storage temperature −55 +125 °C
T
amb
ambient temperature operating −40 +85 °C
Table 5. Characteristics
T
amb
=25
°
C; V
CC
= 5 V; unless otherwise specified.
Symbol Parameter Conditions Min Typ Max Unit
Power supply
V
CC
supply voltage operating
[1]
4.5 - 12 V
I
CC
supply current - 14 - mA
V
CC
=12V - 15 - mA
both I
2
C-bus inputs LOW; both
buffered outputs sinking 30 mA
-22-mA
Drive currents
I
Sx
, I
Sy
output sink on I
2
C-bus V
CC
>3V; V
Sx
,V
Sy
LOW = 0.4 V;
V
Lx
,V
Ly
LOW on buffered bus = 0.3 V;
I
Lx
, I
Ly
= −3mA
[2]
3- - mA
I
Lx
, I
Ly
output sink on buffered bus V
Lx
, V
Ly
LOW = 0.4 V;
V
Sx
,V
Sy
LOW on I
2
C-bus = 0.3 V
30 - - mA
Derated dynamic drive currents for V
CC
< 4.5 V
[1]
I
Lx
, I
Ly
output sink on buffered bus V
CC
>3V;
V
Lx
,V
Ly
LOW = 0.4 V to 1.5 V;
I
Sx
,I
Sy
sinking on I
2
C-bus < −4mA
24 - - mA
V
CC
>3V;
V
Lx
,V
Ly
LOW = 1.5 V to V
CC
;
I
Sx
,I
Sy
sinking on I
2
C-bus = −7mA
24 - - mA