LTC2916CDDB-1#PBF Linear Technology, LTC2916CDDB-1#PBF Datasheet

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LTC2916CDDB-1#PBF

Manufacturer Part Number
LTC2916CDDB-1#PBF
Description
Manufacturer
Linear Technology
Datasheet

Specifications of LTC2916CDDB-1#PBF

Operating Supply Voltage (min)
1.5V
Operating Supply Voltage (max)
5.5V
Operating Temperature Classification
Commercial
Operating Temp Range
0C to 70C
Pin Count
8
Mounting
Surface Mount
Lead Free Status / RoHS Status
Compliant

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
LTC2916CDDB-1#PBFLTC2916CDDB-1
Manufacturer:
LT
Quantity:
10 000
FEATURES
APPLICATIONS
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
TYPICAL APPLICATION
9 Selectable Supply Voltages
3 Selectable Tolerances
Manual Reset Input (LTC2916)
1.5V to 5.5V Supply Operation
6.2V Shunt Regulator for High Voltage Operation
Guaranteed Operation to 125˚C
Guaranteed Threshold Accuracy: ±1.5%
Low Quiescent Current: 30μA Typical
Power Supply Glitch Immunity
Guaranteed RST for V
Low Profi le (1mm) 8-Lead TSOT-23 (ThinSOT
(3mm × 2mm) DFN Packages
Handheld Devices
Cell Phone Base Stations
Automotive Control Systems
Network Servers
Optical Networking Systems
12V, 5V, 3.3V, 2.5V, 1.8V
1.5V, 1.2V, 1.0V, +ADJ (0.5V)
–5%, –10%, –15% (LTC2915)
0.1μF
1.8V, –5% Tolerance Supply Monitor
VM
RT
MR
LTC2916
1.8V
GND
V
CC
SEL1
SEL2
RST
CC
≥ 0.8V
t
RST
= 200ms
10k
RESET
V
μP
CC
29156 TA01
TM
) and
DESCRIPTION
The LTC
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 fi xed at –5%. Threshold accuracy is guaranteed
at ±1.5% over the entire operating temperature range.
Glitch fi ltering 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.
NOMINAL VOLTAGE
27 Selectable Thresholds
ADJ (0.5V)
Voltage Supervisor with
3.3V
2.5V
1.8V
1.5V
1.2V
12V
5V
1V
®
2915/LTC2916 are low voltage single-supply
Monitor Selection Table
LTC2915/LTC2916
SEL1
Open
Open
Open
GND
GND
GND
V
V
V
CC
CC
CC
SEL2
Open
Open
Open
GND
GND
GND
V
V
V
CC
CC
CC
29156fa
1

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LTC2916CDDB-1#PBF Summary of contents

Page 1

... 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. ...

Page 2

... TAPE AND REEL LTC2916CTS8-1#PBF LTC2916CTS8-1#TRPBF LTC2916ITS8-1#PBF LTC2916ITS8-1#TRPBF LTC2916HTS8-1#PBF LTC2916HTS8-1#TRPBF LTC2916CDDB-1#PBF LTC2916CDDB-1#TRPBF LTC2916IDDB-1#PBF LTC2916IDDB-1#TRPBF LTC2916HDDB-1#PBF LTC2916HDDB-1#TRPBF Consult LTC Marketing for parts specifi ed with wider operating temperature ranges. *The temperature grade is identifi label on the shipping container. Consult LTC Marketing for information on non-standard lead based fi nish parts. ...

Page 3

ELECTRICAL CHARACTERISTICS temperature range, otherwise specifi cations are at T SYMBOL PARAMETER Supply Voltage for Guaranteed RST Low RST Driven Low V CC(MIN) V Supply Undervoltage Lockout CC(UVLO) V Shunt Regulation Voltage CC(SHUNT Pin Current CC CC Monitor ...

Page 4

LTC2915/LTC2916 ELECTRICAL CHARACTERISTICS temperature range, otherwise specifi cations are at T SYMBOL PARAMETER Reset Timer Control (RT Pull-Up Current RT(UP Pull-Down Current RT(DOWN) I Internal RT V Detect Current RT(INT Internal Timer Threshold ...

Page 5

TYPICAL PERFORMANCE CHARACTERISTICS Threshold Voltage vs Temperature 1.5 1.0 0.5 V MTADJ 0 V –0.5 MT25 V MT120 –1.0 –1.5 –50 – 100 TEMPERATURE (°C) 29156 G01 Internal Reset Timeout Period vs Temperature 250 RT = ...

Page 6

LTC2915/LTC2916 PIN FUNCTIONS (TSOT/DFN) GND (Pin 4/Pin 1): Device Ground. MR (Pin 3/Pin 2) (LTC2916 only): Manual Reset Input (Active Low). A low level on the MR input causes the part to issue a reset, which is released one reset ...

Page 7

APPLICATIONS INFORMATION Supply Monitoring The LTC2915/LTC2916 are low voltage single supply monitors with selectable thresholds. Two three-state inputs select one of nine internally programmed thresholds. For the LTC2915, a third three-state input selects the tolerance at which the supply connected ...

Page 8

LTC2915/LTC2916 APPLICATIONS INFORMATION Any power supply has some tolerance band within which it is expected to operate (e.g. 5V±10%). It is generally undesirable that a supervisor issue a reset when the power supply is inside this tolerance band. Such a ...

Page 9

APPLICATIONS INFORMATION Typically, the user will pick a value of R1 based on accept- able current draw. Current used by the resistor divider will be approximately ⎛ ⎞ ⎝ ⎜ ⎠ ⎟ I ...

Page 10

LTC2915/LTC2916 TYPICAL APPLICATIONS 12V Supply Monitor Powered from 12V, Utilizing Internal Shunt Regulator with 3.3V Logic Out 12V 3. 11k C BYPASS 0.1μ LTC2915 RST VM SEL1 SEL2 TOL GND 9V, –15% Tolerance ...

Page 11

... SHADED AREA IS ONLY A REFERENCE FOR PIN 1 LOCATION ON THE TOP AND BOTTOM OF PACKAGE 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. ...

Page 12

... MOSP and 3mm × 3mm DFN Packages 16-Lead SSOP and 5mm × 3mm DFN Packages www.linear.com ● 10k V CC μP RST RST GND 29156 TA10 Pin, RST/RST Outputs CC Pin, Adjustable Reset Timer CC LT 0108 REV A • PRINTED IN USA © LINEAR TECHNOLOGY CORPORATION 2007 29156fa ...

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