LTC2915/LTC2916
Voltage Supervisor with
27 Selectable Thresholds
FEATURES DESCRIPTION
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9 Selectable Supply Voltages
The LTC 2915/LTC2916 are low voltage single-supply
12V, 5V, 3.3V, 2.5V, 1.8V
monitors with selectable thresholds. The parts operate
1.5V, 1.2V, 1.0V, +ADJ (0.5V)
from 1.5V to 5.5V and consume a quiescent current of
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3 Selectable Tolerances
only 30A.
5%, 10%, 15% (LTC2915)
Two three-state inputs select one of nine internally pro-
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Manual Reset Input (LTC2916)
grammed thresholds without the need for external resistors.
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1.5V to 5.5V Supply Operation
For the LTC2915, an additional three-state input determines
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6.2V Shunt Regulator for High Voltage Operation
the tolerance (5%, 10%, 15%). The tolerance for the
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Guaranteed Operation to 125C
LTC2916 is xed at 5%. Threshold accuracy is guaranteed
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Guaranteed Threshold Accuracy: 1.5%
at 1.5% over the entire operating temperature range.
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Low Quiescent Current: 30A Typical
Glitch ltering ensures reliable reset operation without
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Power Supply Glitch Immunity
false triggering.
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Guaranteed RST for V 0.8V
CC
TM
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The reset timeout may be set to 200ms or adjusted using
Low Pro le (1mm) 8-Lead TSOT-23 (ThinSOT ) and
an external capacitor. A separate manual reset input on the
(3mm 2mm) DFN Packages
LTC2916 allows a simple push button interface.
APPLICATIONS
Operation to 125C makes the LTC2915 and LTC2916
suitable for automotive applications.
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Handheld Devices
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L, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.
Cell Phone Base Stations
ThinSOT is a trademark of Linear Technology Corporation.
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Automotive Control Systems
All other trademarks are the property of their respective owners.
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Network Servers
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Optical Networking Systems
TYPICAL APPLICATION
1.8V, 5% Tolerance Supply Monitor Monitor Selection Table
1.8V
NOMINAL VOLTAGE SEL1 SEL2
12V V V
CC CC
0.1F
V
CC 5V V Open
CC
10k
V
CC
P 3.3V V GND
CC
LTC2916
VM RST RESET 2.5V Open V
CC
RT SEL1
1.8V Open Open
t = 200ms
RST
29156 TA01
SEL2
1.5V Open GND
MR
GND
1.2V GND V
CC
1V GND Open
ADJ (0.5V) GND GND
29156fa
1LTC2915/LTC2916
ABSOLUTE MAXIMUM RATINGS (Notes 1, 2)
Terminal Voltages Operating Temperature Range
V (Note 3) .......................................... 0.3V to 5.7V LTC2915C/LTC2916C ............................... 0C to 70C
CC
SEL1, SEL2, TOL, MR, RST .................. 0.3V to 7.5V LTC2915I/LTC2916I .............................. 40C to 85C
VM ......................................................... 0.3V to 15V LTC2915H/LTC2916H ......................... 40C to 125C
RT .............................................0.3V to (V + 0.3)V Storage Temperature Range ................... 65C to 150C
CC
Terminal Currents TS8 Lead Temperature (Soldering, 10 sec) ........... 300C
V (Note 3) .......................................................5mA
CC
PIN CONFIGURATION
TOP VIEW
TOP VIEW
GND 1 8 RST
VM 1 8 V
CC
TOL/MR 2 7 RT
SEL1 2 7 SEL2
9
SEL1 3 6 SEL2
TOL/MR 3 6 RT
VM 4 5 V
GND 4 5 RST CC
TS8 PACKAGE
8-LEAD PLASTIC TSOT-23
DDB PACKAGE
8-LEAD (3mm s 2mm) PLASTIC DFN
TOL FOR LTC2915
MR FOR LTC2916
TOL FOR LTC2915
T = 150C, = 250C/W
JMAX JA
MR FOR LTC2916
T = 150C, = 76C/W
JMAX JA
EXPOSED PAD (PIN 9) PCB GND CONNECTION OPTIONAL
ORDER INFORMATION
LEAD FREE FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE
LTC2915CTS8-1#PBF LTC2915CTS8-1#TRPBF LTCVQ 8-Lead TSOT-23 0C to 70C
LTC2915ITS8-1#PBF LTC2915ITS8-1#TRPBF LTCVQ 8-Lead TSOT-23 40C to 85C
LTC2915HTS8-1#PBF LTC2915HTS8-1#TRPBF LTCVQ 8-Lead TSOT-23 40C to 125C
LTC2915CDDB-1#PBF LTC2915CDDB-1#TRPBF LCVR 8-Lead (3mm 2mm) Plastic DFN 0C to 70C
LTC2915IDDB-1#PBF LTC2915IDDB-1#TRPBF LCVR 8-Lead (3mm 2mm) Plastic DFN 40C to 85C
LTC2915HDDB-1#PBF LTC2915HDDB-1#TRPBF LCVR 8-Lead (3mm 2mm) Plastic DFN 40C to 125C
LEAD FREE FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE
LTC2916CTS8-1#PBF LTC2916CTS8-1#TRPBF LTDCW 8-Lead TSOT-23 0C to 70C
LTC2916ITS8-1#PBF LTC2916ITS8-1#TRPBF LTDCW 8-Lead TSOT-23 40C to 85C
LTC2916HTS8-1#PBF LTC2916HTS8-1#TRPBF LTDCW 8-Lead TSOT-23 40C to 125C
LTC2916CDDB-1#PBF LTC2916CDDB-1#TRPBF LDCX 8-Lead (3mm 2mm) Plastic DFN 0C to 70C
LTC2916IDDB-1#PBF LTC2916IDDB-1#TRPBF LDCX 8-Lead (3mm 2mm) Plastic DFN 40C to 85C
LTC2916HDDB-1#PBF LTC2916HDDB-1#TRPBF LDCX 8-Lead (3mm 2mm) Plastic DFN 40C to 125C
Consult LTC Marketing for parts speci ed with wider operating temperature ranges. *The temperature grade is identi ed by a label on the shipping container.
Consult LTC Marketing for information on non-standard lead based nish parts.
For more information on lead free part marking, go to: