Datasheet

PCA9510A_4 © NXP B.V. 2009. All rights reserved.
Product data sheet Rev. 04 — 18 August 2009 3 of 24
NXP Semiconductors
PCA9510A
Hot swappable I
2
C-bus and SMBus bus buffer
6. Block diagram
Fig 1. Block diagram of PCA9510A
002aab781
1 VOLT
PRECHARGE
100 kΩ
RCH1
100 kΩ
RCH2
CONNECT
ENABLE
BACKPLANE-TO-CARD
CONNECTION
CONNECT CONNECT
BACKPLANE-TO-CARD
CONNECTION
CONNECT CONNECT
SDAIN
SCLIN
0.5 pF
SCLOUT
RD
S
QB
UVLO
20 pF
0.55V
CC
/
0.45V
CC
0.5 µA
STOP BIT AND
BUS IDLE
0.55V
CC
/
0.45V
CC
100 µs
DELAY
UVLO
ENABLE
SDAOUT
V
CC
CONNECT
CONNECT
READY
GND
PCA9510A