http://www.datasheet4u.com

900,000+ Datasheet PDF Search and Download

Datasheet4U offers most rated semiconductors datasheets pdf




Linear Technology Electronic Components Datasheet

LTC2934 Datasheet

Ultra-Low Power Adjustable Supervisor

No Preview Available !

LTC2934 pdf
FEATURES
n 500nA Quiescent Current
n ±1.5% (Max) Accuracy over Temperature
n Operates Down to 1.6V Supply
n Adjustable Reset Threshold
n Adjustable Power-Fail Threshold
n Early Warning Power-Fail Output
n Selectable 15ms or 200ms Reset Timeout
n Manual Reset Input
n Compact 8-Lead, 2mm × 2mm DFN and TSOT-23
(ThinSOT™) Packages
APPLICATIONS
n Portable Equipment
n Battery-Powered Equipment
n Security Systems
n Point-of-Sale Devices
n Wireless Systems
, LT, LTC, 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.
LTC2934
Ultra-Low Power
Adjustable Supervisor with
Power-Fail Output
DESCRIPTION
The LTC®2934 ultra-low power voltage monitor provides
system initialization, power-fail warning and reset gen-
eration functions. Low quiescent current (500nA typical)
makes the LTC2934 an ideal choice for battery-operated
applications.
Precision power-fail and reset voltages can be configured
independently. Early warning of an impending low volt-
age condition is provided at the power-fail output (PFO)
when the PFI input falls below 0.4V. Supervisory circuits
monitor the ADJ input and pull RST low when ADJ falls
below 0.4V. When ADJ is rising from an under-threshold
condition, an internal reset timer is started after exceeding
the ADJ threshold by 5%. The reset timeout delays the
return of the RST output to a high state. A pushbutton
switch connected to the MR input is typically used to
force a manual reset. Outputs RST and PFO are available
with open-drain (LTC2934-1) or active pull-up circuits
(LTC2934-2). Operating temperature range is from –40ºC
to 85ºC.
www.DataSheet4U.com
TYPICAL APPLICATION
Configurable Low Power Voltage Supervisor
Selectable Reset Timeout Period
VIN
750k
0.1μF
11.8k
237k
VCC
ADJ PFO
LTC2934-2
PFI
MR
RT GND
RST
POWER FAIL FALLING THRESHOLD = 1.686V
RESET FALLING THRESHOLD = 1.606V
BATTERY
POWERED
SYSTEM
LOGIC
2934 TA01a
VCC
RST, RT = GND
15ms
RST, RT = VCC
200ms
2934 TA01b
2934f
1


Linear Technology Electronic Components Datasheet

LTC2934 Datasheet

Ultra-Low Power Adjustable Supervisor

No Preview Available !

LTC2934 pdf
LTC2934
ABSOLUTE MAXIMUM RATINGS
(Note 1)
Input Voltages
VCC........................................................... –0.3V to 6V
ADJ, PFI................................................... –0.3V to 6V
RT, MR ......................................–0.3V to (VCC + 0.3V)
Output Voltages
PFO, RST (LTC2934-1)............................. –0.3V to 6V
PFO, RST (LTC2934-2)..............–0.3V to (VCC + 0.3V)
RMS Currents
PFO, RST ..........................................................±5mA
Operating Ambient Temperature Range
LTC2934C ................................................ 0°C to 70°C
LTC2934I.............................................. –40°C to 85°C
Storage Temperature Range................... –65°C to 150°C
Lead Temperature (Soldering, 10 sec)
TSOT-23 Package.............................................. 300°C
PIN CONFIGURATION
TOP VIEW
VCC 1
8 ADJ
MR 2
7 PFI
9
RST 3
6 RT
PFO 4
5 GND
DC PACKAGE
8-LEAD (2mm × 2mm) PLASTIC DFN
TJMAX = 125°C, θJA = 102°C/W
EXPOSED PAD (PIN 9) PCB GND CONNECTION OPTIONAL
TOP VIEW
ADJ 1
PFI 2
RT 3
GND 4
8 VCC
7 MR
6 RST
5 PFO
TS8 PACKAGE
8-LEAD PLASTIC TSOT-23
TJMAX = 125°C, θJA = 195°C/W
ORDER INFORMATION
wwwL.DeaatdaSFhreeeetF4Uin.icsohm
TAPE AND REEL (MINI)
TAPE AND REEL
PART MARKING* PACKAGE DESCRIPTION
LTC2934CTS8-1#TRMPBF LTC2934CTS8-1#TRPBF LTDKR
8-Lead Plastic TSOT-23
LTC2934ITS8-1#TRMPBF LTC2934ITS8-1#TRPBF
LTDKR
8-Lead Plastic TSOT-23
LTC2934CTS8-2#TRMPBF LTC2934CTS8-2#TRPBF LTDKS
8-Lead Plastic TSOT-23
LTC2934ITS8-2#TRMPBF LTC2934ITS8-2#TRPBF
LTDKS
8-Lead Plastic TSOT-23
LTC2934CDC-1#TRMPBF LTC2934CDC-1#TRPBF
LDKT
8-Lead (2mm × 2mm) Plastic DFN
LTC2934IDC-1#TRMPBF
LTC2934IDC-1#TRPBF
LDKT
8-Lead (2mm × 2mm) Plastic DFN
LTC2934CDC-2#TRMPBF LTC2934CDC-2#TRPBF
LDKV
8-Lead (2mm × 2mm) Plastic DFN
LTC2934IDC-2#TRMPBF
LTC2934IDC-2#TRPBF
LDKV
8-Lead (2mm × 2mm) Plastic DFN
TRM = 500 pieces. *Temperature grades are identified by a label on the shipping container.
Consult LTC Marketing for parts specified with wider operating temperature ranges.
Consult LTC Marketing for information on lead based finish parts.
For more information on lead free part marking, go to: http://www.linear.com/leadfree/
For more information on tape and reel specifications, go to: http://www.linear.com/tapeandreel/
TEMPERATURE RANGE
0°C to 70°C
–40°C to 85°C
0°C to 70°C
–40°C to 85°C
0°C to 70°C
–40°C to 85°C
0°C to 70°C
–40°C to 85°C
2934f
2


Part Number LTC2934
Description Ultra-Low Power Adjustable Supervisor
Maker Linear Technology
Total Page 12 Pages
PDF Download
LTC2934 pdf
Download PDF File


Buy Electronic Components




Related Datasheet

1 LTC2930 Confi gurable Six Supply Monitor Linear Technology
Linear Technology
LTC2930 pdf
2 LTC2931 Confi gurable Six Supply Monitor Linear Technology
Linear Technology
LTC2931 pdf
3 LTC2932 Confi gurable Six Supply Monitor Linear Technology
Linear Technology
LTC2932 pdf
4 LTC2933 Programmable Hex Voltage Supervisor Linear
Linear
LTC2933 pdf
5 LTC2934 Ultra-Low Power Adjustable Supervisor Linear Technology
Linear Technology
LTC2934 pdf
6 LTC2935 Ultra-Low Power Supervisor Linear Technology
Linear Technology
LTC2935 pdf
7 LTC2936 Programmable Hex Voltage Supervisor Linear Technology
Linear Technology
LTC2936 pdf
8 LTC2938 (LTC2938 / LTC2939) Configurable 4- and 6-Supply Monitors Linear Technology
Linear Technology
LTC2938 pdf
9 LTC2939 (LTC2938 / LTC2939) Configurable 4- and 6-Supply Monitors Linear Technology
Linear Technology
LTC2939 pdf






Part Number Start With

0    1    2    3    4    5    6    7    8    9    A    B    C    D    E    F    G    H    I    J    K    L    M    N    O    P    Q    R    S    T    U    V    W    X    Y    Z

site map

webmaste! click here

contact us

Buy Components