LTC4244CGN#PBF Linear Technology, LTC4244CGN#PBF Datasheet - Page 28

• Manufacturer Part Number: LTC4244CGN#PBF
• Description: IC CTLR HOT SWAP PCI 20-SSOP
• Manufacturer: Linear Technology
• Type: Hot-Swap Controllerr

Specifications of LTC4244CGN#PBF

• 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)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

LTC4244/LTC4244-1
RELATED PARTS
PART NUMBER
LTC1421
LTC1422
LT1640AL/LT1640AH
LT1641-1/LT1641-2
LTC1642
LTC1643AL/LTC1643AL-1 PCI Bus Hot Swap Controllers
LTC1643AH
LTC1644
LTC1645
LTC1646
LTC1647
LTC4211
LTC4240
LT4250
LTC4251
28
TYPICAL APPLICATIO
LONG V(I/O)
I/O PIN 128
LONG 3.3V
HEALTHY#
PCI_RST#
LONG 5V
BD_SEL#
GROUND
I/O PIN 1
3.3V
12V
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
[phone] FAX: [phone]
5V
•
•
•
DESCRIPTION
Hot Swap Controller
Hot Swap Controller
Negative Voltage Hot Swap Controllers in SO-8
Positive Voltage Hot Swap Controllers in SO-8
Fault Protected Hot Swap Controller
Compact PCI Bus Hot Swap Controller
2-Channel Hot Swap Controller
Dual CompactPCI Hot Swap Controller
Dual Hot Swap Controller
Hot Swap Controller with Multifunction Current Control
CompactPCI Hot Swap Controller
–48V Hot Swap Controller in SO-8
–48V Hot Swap Controller in SOT-23
I/O DATA LINE 1
I/O DATA LINE 128
Z1, Z2: SMAJ12A
R15
1
C4
0.01 F
C8
0.01 F PER
POWER PIN
R17
10k
U
Z3, Z4: SMAJ5.0A
Z2
R20
1.2k
2.7
1.8
R22
R21
C7
0.01 F
www.linear.com
Figure 17. Typical LTC4244-1 Application
•
•
•
R18 10k
R19 1k
C9
0.01 F PER
POWER PIN
3.3V
Z3
IN
10
10
R13
R14
5V
12V
V
OFF/ON
FAULT
PWRGD
RESETIN
Z4
3.3V
EEIN
IN
GND PRECHARGE
IN
IN
R10 18
0.005
R1
3.3V
SENSE
R11
10k
IRF7457
GATE
Q1
C3 4.7nF
R3
10
COMMENTS
Dual Supplies from 3V to 12V, Additional –12V
Single Supply Hot Swap in SO-8 from 3V to 12V
Negative High Voltage Supplies from –10V to –80V
Supplies from 9V to 80V, Latch Off/Autoretry
3V to 15V, Overvoltage Protection Up to 33V
3.3V, 5V, 12V, –12V Supplies for PCI Bus
3.3V, 5V, 12V, Local Reset Logic and Precharge
Operates from 1.2V to 12V, Power Sequencing
3.3V, 5V Supplies Only
Dual ON Pins for Supplies from 3V to 15V
Single Supply, 2.5V to 16.5V, MSOP
I
–20V to –80V, Active Current Limiting
Floating Supply, Active Current Limiting and Fast Circuit Breaker
2
3.3V
LTC4244-1
C Interface Allows Control and Readback of Device Functions
R12
10k
OUT
10%
5V
1V
R9 24
IN
0.007
R2
MMBT2222A
5V
DRIVE
SENSE
Q3
IRF7457
Q2
RESETOUT
R4
10
R7 12
R8 1k
12V
V
TIMER
5V
EEOUT
OUT
OUT
•
•
•
+
+
LINEAR TECHNOLOGY CORPORATION 2003
R5
LOCAL_PCI_RST#
1k
+
V
3.3V
0.33 F
C
C
IN
LOAD(5VOUT)
LOAD(3.3VOUT)
C1
C
C2
0.082 F
LOAD(12VOUT)
LT/TP 0204 1K • PRINTED IN USA
I/O #128
I/O #1
RESET#
BRIDGE
10k
R6
CHIP
PCI
4244 F17
V
5V
5A
V
3.3V
7A
V
12V
500mA
V
3.3V
OUT
OUT
OUT
OUT
42441f