Datasheet

LTC2974
91
2974fc
For more information www.linear.com/LTC2974
Figure 38. DC1613 Controller Connections When V
PWR
Is Used
2974 F38
V
PWR
V
DD33
LTC2974*
WP GND
*PIN CONNECTIONS
OMITTED FOR CLARITY
REPEAT OUTLINED CIRCUIT FOR EVERY LTC2974
TO/FROM OTHER
LTC2974s
0.1µF
5.49k
10k10k
V
DD33
0.1µF
V
DD25
V
DD25
0.1µF
49.9k
150k
SCL
SDA
SHARE_CLK
TO DC1613
I
2
C/SMBUS/PMBUS
CONTROLLER
ISOLATED 3.3V
Si1303
4.5V TO 15V
SCL
GND
SDA
TO DC1613
I
2
C/SMBUS/PMBUS
CONTROLLER
ISOLATED 3.3V
SCL
GND
SDA
2974 F39
LTC4412
NOTE: DC1613 CONTROLLER I
2
C CONNECTIONS ARE OPTO-ISOLATED
ISOLATED 3.3V FROM LTC CONTROLLER CAN BE BACK DRIVEN AND WILL ONLY DRAW <10µA
ISOLATED 3.3V CURRENT LIMIT IS 100mA
SENSEV
IN
GATEGND
STATCTL
V
PWR
V
DD33
LTC2974*
WP GND
*PIN CONNECTIONS
OMITTED FOR CLARITY
TO/FROM OTHER
LTC2974s
IDEAL DIODE
OR’D 3.3V
TP0101K-SOT23
SYSTEM 3.3V
0.1µF
V
DD33
V
DD25
V
DD25
0.1µF
SCL
SDA
SHARE_CLK
applicaTions inForMaTion
Figure 39. DC1613 Controller Connections When LTC2974 Is Powered Directly from 3.3V