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LTC2913CDD-2#PBF

P1-P3P4-P6P7-P9P10-P12
LTC2913
10
2913fb
APPLICATIONS INFORMATION
where R
PD
is the on-resistance of the internal pull-down
transistor, typically 50Ω at V
CC
> 1V and at room tem-
perature (25°C). C
LOAD
is the external load capacitance
on the pin. Assuming a 150pF load capacitance, the fall
time is 16.5ns.
The rise time on the UV and OV pins is limited by a 400k
pull-up resistance to V
CC
. A similar formula estimates the
output rise time (10% to 90%) at the UV and OV pins:
t
RISE
≈ 2.2 • R
PU
• C
LOAD
where R
PU
is the pull-up resistance.
OV Latch (LTC2913-1)
With the LATCH pin held low, the OV pin latches low when
an OV condition is detected. The latch is cleared by raising
the LATCH pin high. If an OV condition clears while LATCH
is held high, the latch is bypassed and the OV pin behaves
the same as the UV pin with a similar timeout period at the
output. If LATCH is pulled low while the timeout period is
active, the OV pin latches as before.
Disable (LTC2913-2)
The LTC2913-2 allows disabling the UV and OV outputs
via the DIS pin. Pulling DIS high will force both outputs
to remain weakly pulled high, regardless of any faults
that occur on the inputs. However, if a UVLO condition
occurs, UV asserts and pulls low, but the timeout function
is bypassed. UV pulls high as soon as the UVLO condition
is cleared.
DIS has a weak 2μA (typical) internal pull-down current
guaranteeing normal operation with the pin left open.
Dual UV/OV Supply Monitor, 10% Tolerance, 5V, 3.3V
Supply Monitor Powered from 12V, 10% Tolerance, 12V, 5V
R
C2
27.4k
R
B1
1k
R
C1
44.2k
10
6
7
8
95
4
3
2
1
VH1
VL1
VH2
GND TMR
SYSTEM
POWER
SUPPLIES
VL2
OV
UV
2913 TA02
LATCH
R
A2
4.53k
C
TMR
22nF
TIMEOUT = 200ms
R
B2
1k
R
A1
4.53k
V
CC
LTC2913-1
C
BYP
0.1μF
5V
3.3V
R
C2
44.2k
R
B1
1k
R
C1
115k
R
Z
10k
10
6
7
8
9
5
4
3
2
1
VH1
VL1
VH2
GND
TMR
SYSTEM
POWER
SUPPLIES
VL2
OV
UV
2913 TA03
DIS
R
A2
4.53k
R
B2
1k
R
A1
4.53k
V
CC
LTC2913-2
C
BYP
0.1μF
12V
5V
TYPICAL APPLICATIONS
LTC2913
11
2913fb
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 representa-
tion that the interconnection of its circuits as described herein will not infringe on existing patent rights.
PACKAGE DESCRIPTION
DD Package
10-Lead Plastic DFN (3mm × 3mm)
(Reference LTC DWG # 05-08-1699)
MS Package
10-Lead Plastic MSOP
(Reference LTC DWG # 05-08-1661)
3.00 ±0.10
(4 SIDES)
NOTE:
1. DRAWING TO BE MADE A JEDEC PACKAGE OUTLINE M0-229 VARIATION OF (WEED-2).
CHECK THE LTC WEBSITE DATA SHEET FOR CURRENT STATUS OF VARIATION ASSIGNMENT
2. DRAWING NOT TO SCALE
3. ALL DIMENSIONS ARE IN MILLIMETERS
4. DIMENSIONS OF EXPOSED PAD ON BOTTOM OF PACKAGE DO NOT INCLUDE
MOLD FLASH. MOLD FLASH, IF PRESENT, SHALL NOT EXCEED 0.15mm ON ANY SIDE
5. EXPOSED PAD SHALL BE SOLDER PLATED
6. SHADED AREA IS ONLY A REFERENCE FOR PIN 1 LOCATION ON THE
TOP AND BOTTOM OF PACKAGE
0.38 ± 0.10
BOTTOM VIEW—EXPOSED PAD
1.65 ± 0.10
(2 SIDES)
0.75 ±0.05
R = 0.115
TYP
2.38 ±0.10
(2 SIDES)
15
106
PIN 1
TOP MARK
(SEE NOTE 6)
0.200 REF
0.00 – 0.05
(DD10) DFN 1103
0.25 ± 0.05
2.38 ±0.05
(2 SIDES)
RECOMMENDED SOLDER PAD PITCH AND DIMENSIONS
1.65 ±0.05
(2 SIDES)2.15 ±0.05
0.50
BSC
0.675 ±0.05
3.50 ±0.05
PACKAGE
OUTLINE
0.25 ± 0.05
0.50 BSC
MSOP (MS) 0603
0.53 ± 0.152
(.021 ± .006)
SEATING
PLANE
0.18
(.007)
1.10
(.043)
MAX
0.17 – 0.27
(.007 – .011)
TYP
0.127 ± 0.076
(.005 ± .003)
0.86
(.034)
REF
0.50
(.0197)
BSC
12
3
45
4.90 ± 0.152
(.193 ± .006)
0.497 ± 0.076
(.0196 ± .003)
REF
8910
7
6
3.00 ± 0.102
(.118 ± .004)
(NOTE 3)
3.00 ± 0.102
(.118 ± .004)
(NOTE 4)
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
0.254
(.010)
0° – 6° TYP
DETAIL “A”
DETAIL “A”
GAUGE PLANE
5.23
(.206)
MIN
3.20 – 3.45
(.126 – .136)
0.889 ± 0.127
(.035 ± .005)
RECOMMENDED SOLDER PAD LAYOUT
0.305 ± 0.038
(.0120 ± .0015)
TYP
0.50
(.0197)
BSC
LTC2913
12
2913fb
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408) 432-1900
●
FAX: (408) 434-0507
●
www.linear.com
© LINEAR TECHNOLOGY CORPORATION 2006
LT 1007 • REV B • PRINTED IN USA
TYPICAL APPLICATION
Dual UV/OV Supply Monitor with LED Undervoltage and Overvoltage Indicator and Manual
Undervoltage Reset Button, 10% Tolerance, 12V, 5V
PART NUMBER DESCRIPTION COMMENTS
LTC1326/
LTC1326-2.5
Micropower Precision Triple Supply Monitor for 5V/2.5V, 3.3V
and ADJ
4.725V, 3.118V, 1V Threshold (±0.75%)
LTC1726-2.5/
LTC1726-5
Micropower Triple Supply Monitor for 2.5V/5V, 3.3V and ADJ Adjustable RESET and Watchdog Time-Outs
LTC1727-2.5/
LTC1727-5
Micropower Triple Supply Monitor with Open-Drain Reset Individual Monitor Outputs in MSOP
LTC1728-1.8/
LTC1728-3.3
Micropower Triple Supply Monitor with Open-Drain Reset 5-Lead SOT-23 Package
LTC1728-2.5/
LTC1728-5
Micropower Triple Supply Monitor with Open-Drain Reset 5-Lead SOT-23 Package
LTC1985-1.8 Micropower Triple Supply Monitor with Open-Drain Reset 5-Lead SOT-23 Package
LTC2900 Programmable Quad Supply Monitor Adjustable RESET, 10-Lead MSOP and 3mm × 3mm
10-Lead DFN Package
LTC2901 Programmable Quad Supply Monitor Adjustable RESET and Watchdog Timer, 16-Lead SSOP Package
LTC2902 Programmable Quad Supply Monitor Adjustable RESET and Tolerance, 16-Lead SSOP Package,
Margining Functions
LTC2903 Precision Quad Supply Monitor 6-Lead SOT-23 Package, Ultralow Voltage Reset
LTC2904 3-State Programmable Precision Dual Supply Monitor Adjustable Tolerance, 8-Lead SOT-23 Package
LTC2905 3-State Programmable Precision Dual Supply Monitor Adjustable RESET and Tolerance, 8-Lead SOT-23 Package
LTC2906 Precision Dual Supply Monitor 1-Selectable and 1 Adjustable Separate V
CC
Pin, RST/RST Outputs
LTC2907 Precision Dual Supply Monitor 1-Selectable and 1 Adjustable Separate V
CC
, Adjustable Reset Timer
LTC2908 Precision Six Supply Monitor (Four Fixed & 2 Adjustable) 8-Lead SOT-23 and DFN Packages
LTC2909 Prevision Dual Input UV, OV and Negative Voltage Monitor Separate V
CC
Pin, Adjustable Reset Timer, 8-Lead TSOT-23 and
DFN Packages
LTC2910 Octal Positive/Negative Voltage Monitor Separate V
CC
Pin, Eight Inputs, Up to Two Negative Monitors
Adjustable Reset Timer, 16-Lead SSOP and DFN Packages
LTC2914 Quad UV/OV Positive/Negative Voltage Monitor Separate V
CC
Pin, Four inputs, Up To Two Negative Monitors,
Adjustable Reset Timer, 16-Lead SSOP and DFN Packages
2.05M
10k100k
510Ω
LED
1k
44.2k
VH1
VL1
VH2
GND TMR
SYSTEM
POWER
SUPPLIES
VL2
OV
UV
2913 TA05
DIS
22nF
TIMEOUT = 200ms
4.53k
MANUAL
RESET BUTTON
(NORMALLY OPEN)
V
CC
LTC2913-2
0.1μF
12V
5V
510Ω
LED
RELATED PARTS
P1-P3P4-P6P7-P9P10-P12

LTC2913CDD-2#PBF

Mfr. #:
Buy LTC2913CDD-2#PBF
Manufacturer:
Analog Devices Inc.
Description:
Supervisory Circuits 2x UV/OV V Mon
Lifecycle:
New from this manufacturer.
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