LTC1643ALC Просмотр технического описания (PDF) - Linear Technology
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LTC1643ALC Datasheet PDF : 16 Pages
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LTC1643AL
LTC1643AL-1/LTC1643AH
TYPICAL APPLICATIONS
MED 5V
MED 3.3V
12V
BD_SEL#
HEALTHY#
LONG GND
PCI_RST#
I/O
V(I/O)
R1
0.005Ω
1 1% 2
3
4
Q2
IRF7413
R3
10Ω
5%
R2
0.007Ω Q1
1 1% 2 IRF7413
5V
3
4
5A
3.3V
7.6A
R4
10Ω
R5
5%
100Ω
5%
D2* R8
12V
1.2k
5%
R12
2k
5%
V(I/O)
R11
R10
1Ω†
2k
5%
5%
C7
0.1µF
R9
2k
5%
1
9
3VIN
12VIN
2 VEEIN
5
ON
6
FAULT
7
PWRGD
10
11
3
13
3VSENSE GATE 3VOUT 5VIN
LTC1643AL-1
GND
8
12
5VSENSE
14
5VOUT
C1
0.047µF
16
12VOUT
NC
15
VEEOUT
NC
TIMER
4
C2
0.1µF
PRECHARGE OUT
1V ±20%
D1
IOUT = ±40mA 1N4148
C3
0.01µF R15
24Ω
5%
R6
130Ω
1%
R7
56.2Ω
1%
V(I/O)
LONG
3.3V
LT1117
OUT IN
ADJ
C4
1µF
DATA LINE EXAMPLE
DATA BUS
* BZX84C15 (SOT-23)
† VALUE MAY VARY FOR BACKPLANES WITHOUT BYPASS CAPACITANCE
LOCAL_PCI_RESET#
R14
10Ω, 5%
R13
10k
5%
LONG LONG
3.3V 5V
I/O 3.3V 5V
RESET#
PCI
BRIDGE
(21154)
1643A F10
Figure 10. CompactPCI Application without ±12V Outputs
RELATED PARTS
PART NUMBER
LTC1421
LTC1422
LT®1640A
LT1641-1/LT1641-2
LTC1642
LTC1644
LTC1645
LTC1646
LTC1647
LTC4211
LTC4230
LT4250
LTC4251
LTC4252
DESCRIPTION
Hot Swap Controller
Hot Swap Controller in SO-8
– 48V Hot Swap Controller in SO-8
Positive High Voltage Hot Swap Controller in SO-8
Fault Protected Hot Swap Controller
CompactPCI Hot Swap Controller
2-Channel Hot Swap Controller
Dual CompactPCI Hot Swap Controller
Dual Hot Swap Controller
Hot Swap Controller with Multifunction Current Control
Triple Hot Swap Controller
– 48V Hot Swap Controller in SO-8
– 48V Hot Swap Controller in SOT-23
– 48V Hot Swap Controller in MSOP
16 Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408) 432-1900 ● FAX: (408) 434-0507 ● www.linear.com
COMMENTS
Multiple Supplies from 3V to 12V and –12V
Single Supply form 3V to 12V, RESET Output
–10V to – 80V Supplies
Operates from 9V to 80V, Active Current Limiting
Operation Up to 15V, Handles Surges to 33V
3.3V, 5V, ±12V, Local Reset Logic, 1V Precharge
Operates from 1.2V to 12V, Power Sequencing
3.3V, 5V Supplies, 1V Precharge, Local Reset Logic
Dual ON Pins for Supplies from 3V to 15V
2.5V to 16.5V Operation, MSOP
1.7V to 16.5V Operation, Multifunction Current Control
– 20V to –80V Supplies, Active Current Limiting
–15V Minimum Floating Supply, Active Current Limiting
Floating Supply, Power Good, Active Current Limiting
1643afb
LT/LWI 1006 REV B • PRINTED IN USA
© LINEAR TECHNOLOGY CORPORATION 2002
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