ltc1643al Linear Technology Corporation, ltc1643al Datasheet - Page 10

• Manufacturer Part Number: ltc1643al
• Description: Pci-bus Hot Swap Controller
• Manufacturer: Linear Technology Corporation

LTC1643AL
LTC1643AL-1/LTC1643AH
APPLICATIONS
10
10V/DIV
10V/DIV
10V/DIV
10V/DIV
10V/DIV
PWRGD
12V
5V/DIV
V
5V/DIV
5V/DIV
5V/DIV
TIMER
5V
3V
FAULT
EEOUT
GATE
OUT
OUT
OUT
ON
Figure 2. Normal Power-Up Sequence
CONTROLLER
SYSTEM
U
SYSTEM
POWER
SUPPLY
POWER
PCI
RESET
INFORMATION
U
10ms/DIV
10k
10k
R3
R4
8
1
2
5
6
7
W
GND
12V
V
ON
FAULT
PWRGD
EEIN
3V
3
IN
1
IN
9
0.005
R2
3V
Figure 1. Typical PCI Application
SENSE
2
4
10
U
IRF7413
GATE
Q2
11
R5
10
1643A F02
3V
LTC1643AH
OUT
3
5V
3
10V/DIV
10V/DIV
10V/DIV
10V/DIV
10V/DIV
PWRGD
1
12V
IN
V
13
5V/DIV
5V/DIV
5V/DIV
5V/DIV
TIMER
FAULT
0.007
5V
3V
EEOUT
GATE
R1
OUT
OUT
OUT
ON
5V
SENSE
2
12
4
IRF7413
Q1
Figure 3. Normal Power-Down Sequence
R6
10
5V
OUT
12V
V
14
TIMER
EEOUT
OUT
100
R7
16
15
4
C1
0.047 F
C2
0.1 F
10ms/DIV
5V
5A
3.3V
7.6A
GND
12V
500mA
–12V
100mA
RESET
LOGIC
1643A F01
1643afa
1643A F03