FEATURES
n 9 Selectable Supply Voltages
12V, 5V, 3.3V, 2.5V, 1.8V
1.5V, 1.2V, 1.0V, +ADJ (0.5V)
n 3 Selectable Tolerances
–5%, –10%, –15% (LTC2915)
n Manual Reset Input (LTC2916)
n 1.5V to 5.5V Supply Operation
wwwn.Da6t.a2SVheSeht4uUn.ct oRmegulator for High Voltage Operation
n Guaranteed Operation to 125˚C
n Guaranteed Threshold Accuracy: ±1.5%
n Low Quiescent Current: 30μA Typical
n Power Supply Glitch Immunity
n Guaranteed RST for VCC ≥ 0.8V
n Low Profile (1mm) 8-Lead TSOT-23 (ThinSOTTM) and
(3mm × 2mm) DFN Packages
APPLICATIONS
n Handheld Devices
n Cell Phone Base Stations
n Automotive Control Systems
n Network Servers
n Optical Networking Systems
LTC2915/LTC2916
Voltage Supervisor with
27 Selectable Thresholds
DESCRIPTION
The LTC®2915/LTC2916 are low voltage single-supply
monitors with selectable thresholds. The parts operate
from 1.5V to 5.5V and consume a quiescent current of
only 30μA.
Two three-state inputs select one of nine internally pro-
grammed thresholds without the need for external resistors.
For the LTC2915, an additional three-state input determines
the tolerance (–5%, –10%, –15%). The tolerance for the
LTC2916 is fixed at –5%. Threshold accuracy is guaranteed
at ±1.5% over the entire operating temperature range.
Glitch filtering ensures reliable reset operation without
false triggering.
The reset timeout may be set to 200ms or adjusted using
an external capacitor. A separate manual reset input on the
LTC2916 allows a simple push button interface.
Operation to 125°C makes the LTC2915 and LTC2916
suitable for automotive applications.
L, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.
ThinSOT is a trademark of Linear Technology Corporation.
All other trademarks are the property of their respective owners.
TYPICAL APPLICATION
1.8V, –5% Tolerance Supply Monitor
1.8V
0.1μF
VCC
LTC2916
VM RST
RT SEL1
SEL2
MR
GND
10k
tRST = 200ms
VCC
μP
RESET
29156 TA01
Monitor Selection Table
NOMINAL VOLTAGE
12V
5V
3.3V
2.5V
1.8V
1.5V
1.2V
1V
ADJ (0.5V)
SEL1
VCC
VCC
VCC
Open
Open
Open
GND
GND
GND
SEL2
VCC
Open
GND
VCC
Open
GND
VCC
Open
GND
29156fa
1
