LTC1644CGN#TR Linear Technology, LTC1644CGN#TR Datasheet - Page 19

• Manufacturer Part Number: LTC1644CGN#TR
• Description: IC CONTROLLER HOT SWAP 20-SSOP
• Manufacturer: Linear Technology
• Type: Hot-Swap Controllerr

Specifications of LTC1644CGN#TR

• Applications: CompactPCI™
• Internal Switch(s): No
• Voltage - Supply: 3.3V, 5V, ±12V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 20-SSOP (0.154", 3.91mm Width)
• Family Name: LTC1644
• Package Type: SSOP N
• Operating Supply Voltage (min): 2.75/10.8/-10.8V
• Operating Supply Voltage (max): 13.2/-14V
• Operating Temperature (min): 0C
• Operating Temperature (max): 70C
• Operating Temperature Classification: Commercial
• Product Depth (mm): 3.99mm
• Product Height (mm): 1.5mm
• Mounting: Surface Mount
• Pin Count: 20
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: LTC1644CGNTR

APPLICATIO S I FOR ATIO
I/O PIN 128
LONG 3.3V
HEALTHY#
PCI_RST#
BD_SEL#
LONG 5V
GROUND
I/O PIN 1
3.3V
12V
5V
CONNECTOR
BACKPLANE
LONG 3.3V
GROUND
3.3V
CONNECTOR
BACKPLANE
U
PCB EDGE
CONNECTOR
BACKPLANE
Z3: 1PMT5.0AT3
*ADDITIONAL PINS OMITTED FOR CLARITY
I/O DATA LINE 1
I/O DATA LINE 128
0.01 F
U
Z1: SMAJ12CA Z3, Z4: 1PMT5.0AT3
*5V
IN
C6
R15
1
CONNECTOR
EARLY V(I/O)
BACKPLANE
AND 3V
PCB EDGE
C4
0.01 F
C8 0.1 F
PER 10
POWER
PINS
R17
2k
IN
Z1
5V
MAY BE USED AS SOURCES OF EARLY POWER
W
IN
R22 2.74
R21 1.74
Figure 11. No V
C7
0.01 F
R21 1.74
R20 1.2k
Figure 12. No 5V Supply Application Circuit
C6
0.01 F
C9 0.1 F
PER 10
POWER
PINS
C8 0.1 F
PER 10
POWER PINS
Z3
3V
U
R19
R18
Z3
1k
2k
3V
IN
10
10
8
R13
R14
*
IN
GND
1
2
5
6
7
9
EE
5V
5V
Z4
12V
V
OFF/ON
FAULT
PWRGD
RESETIN
IN
(–12V) Supply Application Circuit
IN
EEIN
13
*
3V
IN
GND
IN
17
5V
0.005
8
18 5%
SENSE
R1
R10
14
PRECHARGE
3V
SENSE
16
3V
12
R11
51k
IN
IRF7413
17
GATE
0.005
Q1
R1
15
R3
10
LTC1644*
3V
3V
R12
51k
SENSE
C3 4.7nF
LTC1644
OUT
16
18
5V
IRF7413
GATE
IN
10%
1V
13
Q1
0.007
15
24
R3
10
R2
R9
5V
MMBT2222A
3V
SENSE
DRIVE
OUT
Q3
14
18
IRF7413
11
Q2
R8 1k
R4
10
5V
5V
RESETOUT
OUT
3
OUT
12V
V
C
C
3
TIMER
EEOUT
LOAD(5VOUT)
LOAD(3VOUT)
R5
1k
OUT
12
R5
1k
R7
1644 F12
0.047 F
20
C
19
4
10
LTC1644
0.047 F
LOAD(12VOUT)
C1
3V
C1
I/O #128
I/O #128
3V
IN
+
+
V
NC
I/O #1
I/O #1
EEOUT
OUT
C2
0.1 F
R6
2k
5V
3V
RESET#
+
OUT
OUT
BRIDGE
(21154)
19
PCI
3V
OUT
12V
1644 F11
1644f
OUT