LT1640AH LINER [Linear Technology], LT1640AH Datasheet - Page 16

• Manufacturer Part Number: LT1640AH
• Description: Negative Voltage Hot Swap Controller
• Manufacturer: LINER [Linear Technology]

LT1640AL/LT1640AH
TYPICAL
Using an EMI Filter Module
Many applications place an EMI filter module in the power
path to prevent switching noise of the module from being
injected back onto the power supply. A typical application
* DIODES INC. SMAT70A
RELATED PARTS
PART NUMBER
LTC
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LTC1642
LTC1643
LTC1645
LTC1646
LTC1647
CompactPCI is a trademark of the PCI Industrial Computer Manufacturers Group
16
– 48V
GND
®
1421
*
GND
9.09k
562k
10k
1%
1%
1%
R4
R5
R6
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
[phone] FAX: [phone] www.linear-tech.com
(SHORT PIN)
3
2
APPLICATION
UV
OV
3
V
V
DD
EE
DESCRIPTION
Dual Channel, Hot Swap Controller
Hot Swap Controller in SO-8
Positive 48V Hot Swap Controller in SO-8
Fault Protected Hot Swap Controller
PCI Hot Swap Controller
Dual Hot Swap Controller
CompactPCI
Dual Hot Swap Controller
4
8
1
LT1640AL
0.02
5%
R1
PWRGD
DRAIN
SENSE
2
GATE
4
1
5
TM
Hot Swap Controller
7
6
C1
150nF
25V
U
3.3nF
100V
C2
Figure 14. Typical Application Using a Filter Module
IRF530
Q1
R3
18k
5%
R2
10
5%
C3
0.1 F
100V
V
V
FLTR100V10
IN
IN
4N25
LUCENT
+
–
R7
51k
5%
CASE
V
V
using the Lucent FLTR100V10 filter module is shown in
Figure 14. When using a filter, an optoisolator is required
to prevent common mode transients from destroying the
PWRGD and ON/OFF pins.
OUT
OUT
+
–
COMMENTS
Operates from 3V to 12V
System Reset Output with Programmable Delay, 3V to 12V
Operates Up to 16.5V, Protected to 33V
3.3V, 5V, 12V, – 12V Supplies for PCI Bus
Operates from 1.2V to 12V, Power Sequencing
3.3V, 5V Supplies, 1V Precharge, Local PCI Reset Logic
Dual ON Pins for Supplies from 3V to 15V
Foldback Analog Current Limit
C4
0.1 F
100V
+
C5
100 F
100V
C6
0.1 F
100V
LINEAR TECHNOLOGY CORPORATION 2001
1640alahf LT/TP 0501 4K • PRINTED IN USA
1
2
4
V
ON/OFF
V
IN
IN
JW050A1-E
+
–
LUCENT
CASE
SENSE
SENSE
3
V
V
TRIM
OUT
OUT
+
+
–
–
1640A F14
9
8
7
6
5
+
C7
100 F
16V
5V