LTC1921IS8#PBF

LTC1921
10
1921f
Complete –48V Telecom Supply Monitor and Hot Swap
TM
Controller
TYPICAL APPLICATIO S
U
+
V
EE
V
DD
C8
100nF
100V
LT4250L
PWRGD
SENSE
C1
470nF
25V
C2
15nF
100V
C3
0.1µF
100V
C4
0.1µF
100V
C6
0.1µF
100V
C5
100µF
100V
C7
100µF
16V
Q1
IRF530
R2
10
5%
R3
1k
5%
R8
100
R4
549k
1%
R5
6.49k
1%
R6
10k
1%
R1
0.02
5%
4
OV
3
2
48V A
48V
RTN
48V B
UV
5
6
8
7
1
GATE
DRAIN
LUCENT
JW050A1-E
V
OUT
+
SENSE
+
TRIM
SENSE
V
OUT
V
IN
+
9
5V
1921 TA02
8
7
6
5
3
1
2
4
ON/OFF
CASE
V
IN
V
OUT
+
V
OUT
V
IN
+
CASE
V
IN
1N4003
+
LUCENT
FLTR100V10
*
* DIODES INC. SMAT70A
MOC207
R7
51k
5%
MOC207
MOC207
MOC207
FUSE
STATUS
SUPPLY A
STATUS
R11
47k
1/4W
SUPPLY B
STATUS
OUT FV
A
3
4
57
2
8
1
6
V
B
FUSE A
3A
3A
RTN
LTC1921
FUSE B
OUT A
OUT B
R10
10k
1W
R9
10k
1W
= DIODES INC. B3100
Hot Swap is a trademark of Linear Technology Corporation
LTC1921
11
1921f
Information furnished by Linear Technology Corporation is believed to be accurate and reliable.
However, no responsibility is assumed for its use. Linear Technology Corporation makes no represen-
tation that the interconnection of its circuits as described herein will not infringe on existing patent rights.
PACKAGE DESCRIPTIO
U
MSOP (MS8) 0802
0.53 ± 0.015
(.021 ± .006)
SEATING
PLANE
NOTE:
1. DIMENSIONS IN MILLIMETER/(INCH)
2. DRAWING NOT TO SCALE
3. DIMENSION DOES NOT INCLUDE MOLD FLASH, PROTRUSIONS OR GATE BURRS.
MOLD FLASH, PROTRUSIONS OR GATE BURRS SHALL NOT EXCEED 0.152mm (.006") PER SIDE
4. DIMENSION DOES NOT INCLUDE INTERLEAD FLASH OR PROTRUSIONS.
INTERLEAD FLASH OR PROTRUSIONS SHALL NOT EXCEED 0.152mm (.006") PER SIDE
5. LEAD COPLANARITY (BOTTOM OF LEADS AFTER FORMING) SHALL BE 0.102mm (.004") MAX
0.18
(.077)
0.254
(.010)
1.10
(.043)
MAX
0.22 – 0.38
(.009 – .015)
TYP
0.13 ± 0.076
(.005 ± .003)
0.86
(.034)
REF
0.65
(.0256)
BSC
0
° – 6° TYP
DETAIL “A”
DETAIL “A”
GAUGE PLANE
12
3
4
4.90
± 0.15
(1.93 ± .006)
8
7
6
5
3.00 ± 0.102
(.118 ± .004)
(NOTE 3)
3.00 ± 0.102
(.118 ± .004)
NOTE 4
0.52
(.206)
REF
5.23
(.206)
MIN
3.2 – 3.45
(.126 – .136)
0.889
± 0.127
(.035 ± .005)
RECOMMENDED SOLDER PAD LAYOUT
0.42 ± 0.04
(.0165 ± .0015)
TYP
0.65
(.0256)
BSC
.016 – .050
(0.406 – 1.270)
.010 – .020
(0.254 – 0.508)
× 45°
0°– 8° TYP
.008 – .010
(0.203 – 0.254)
SO8 0502
.053 – .069
(1.346 – 1.752)
.014 – .019
(0.355 – 0.483)
TYP
.004 – .010
(0.101 – 0.254)
.050
(1.270)
BSC
1
N
2
3
4
N/2
.150 – .157
(3.810 – 3.988)
NOTE 3
8
7
6
5
.189 – .197
(4.801 – 5.004)
NOTE 3
.228 – .244
(5.791 – 6.197)
.245
MIN
N
1 2 3 N/2
.160
±.005
RECOMMENDED SOLDER PAD LAYOUT
.045 ±.005
.050 BSC
.030 ±.005
TYP
INCHES
(MILLIMETERS)
NOTE:
1. DIMENSIONS IN
2. DRAWING NOT TO SCALE
3. THESE DIMENSIONS DO NOT INCLUDE MOLD FLASH OR PROTRUSIONS.
MOLD FLASH OR PROTRUSIONS SHALL NOT EXCEED .006" (0.15mm)
MS8 Package
8-Lead Plastic MSOP
(Reference LTC DWG # 05-08-1660)
S8 Package
8-Lead Plastic Small Outline (Narrow .150 Inch)
(Reference LTC DWG # 05-08-1610)
LTC1921
12
1921f
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408) 432-1900
FAX: (408) 434-0507
www.linear.com
LINEAR TECHNOLOGY CORPORATION 2002
LT/TP 0902 2K • PRINTED IN USA
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PART NUMBER DESCRIPTION COMMENTS
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Single 48V Supply Monitor Single –48V Supply Monitor
TYPICAL APPLICATIO S
U
MOC207
1921 TA04
LOGIC V
+
LOGIC
COMMON
SUPPLY GOOD
47k
OUT FV
A
3
4
5
7
47k
1/4W
2
8
1
6
V
B
FUSE A
RTN
V
+
LTC1921
FUSE B
OUT A
OUT B
1921 TA03
R3
5.1k
2W
D5
GREEN
D4
GREEN
D3
GREEN
OUT F
48V RETURN
V
A
3
4
57
2
8
1
6
–48V OUT
V
B
FUSE A
RTN
LTC1921
FUSE B
OUT A
OUT B
D1
F1
SUPPLY A
48V
SUPPLY B
48V
F2
D2
R2
100k
R1
100k

LTC1921IS8#PBF

Mfr. #:
Manufacturer:
Analog Devices Inc.
Description:
Current & Power Monitors & Regulators 2x -48V S & Fuse Mon
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
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