900,000+ datasheet pdf search and download

Datasheet4U offers most rated semiconductors data sheet pdf






etcTI

LM26NV Datasheet Preview

LM26NV Datasheet

Factory Preset Thermostat

No Preview Available !

LM26NV
www.ti.com
SNIS151B – AUGUST 2008 – REVISED MARCH 2013
LM26NV SOT-23, ±3°C Accurate, Factory Preset Thermostat
(LM26 without VTEMP output)
Check for Samples: LM26NV
FEATURES
1
2 Internal Comparator with Pin Programmable
2°C or 10°C Hysteresis
• No External Components Required
• Open Drain or Push-Pull Digital Output;
Supports CMOS Logic Levels
• Internal Temperature Sensor
• Internal Voltage Reference and DAC for Trip-
Point Setting
• Currently Available in 5-Pin SOT-23 Plastic
Package
• Excellent Power Supply Noise Rejection
APPLICATIONS
• Microprocessor Thermal Management
• Appliances
• Portable Battery Powered Systems
• Fan Control
• Industrial Process Control
• HVAC Systems
• Remote Temperature Sensing
• Electronic System Protection
KEY SPECIFICATIONS
• Power Supply Voltage: 2.7V to 5.5 V
• Power Supply Current:
– 40µA(max)
– 20µA(typ)
• Hysteresis Temperature: 2°C or 10°C(typ)
DESCRIPTION
The LM26NV is a precision, single digital-output, low-
power thermostat comprised of an internal reference,
DAC, temperature sensor and comparator. Utilizing
factory programming, it can be manufactured with
different trip points as well as different digital output
functionality. The trip point (TOS) can be preset at the
factory to any temperature in the range of 55°C to
+110°C in 1°C increments. The LM26NV has one
digital output (OS/OS/US/US) and one digital input
(HYST). The digital output stage can be preset as
either open-drain or push-pull. In addition, it can be
factory programmed to be active HIGH or LOW. The
digital output can be factory programmed to indicate
an over temperature shutdown event (OS or OS) or
an under temperature shutdown event (US or US).
When preset as an overtemperature shutdown (OS),
it will go LOW to indicate that the die temperature is
over the internally preset TOS and go HIGH when the
temperature goes below (TOS–THYST). Similarly, when
preprogrammed as an undertemperature shutdown
(US) it will go HIGH to indicate that the temperature
is below TUS and go LOW when the temperature is
above (TUS+THYST). The typical hysteresis, THYST, can
be set to 2°C or 10°C and is controlled by the state of
the HYST pin.
Available parts are detailed in the ordering
information. For other part options, contact a Texas
Instruments Distributor or Sales Representative for
information on minimum order qualification. The
LM26NV is currently available in a 5-lead SOT-23
package.
Table 1. Temperature Trip Point Accuracy
Temperature Range
55°C to +110°C
+120°C
LM26NV
±3°C (max)
±4°C (max)
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
All trademarks are the property of their respective owners.
2
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2008–2013, Texas Instruments Incorporated




etcTI

LM26NV Datasheet Preview

LM26NV Datasheet

Factory Preset Thermostat

No Preview Available !

LM26NV
SNIS151B – AUGUST 2008 – REVISED MARCH 2013
www.ti.com
Connection Diagram
HYST
GND
NC or
GND
1
5
LM26NV
2
3
4
OS, OS,
US, or US
V+
Figure 1. 5-Lead SOT-23
See DBV Package
Pin
Number
1
2
3
4
5 (1)
Pin
Name
HYST
GND
NC
V+
OS
OS
US
US
PIN DESCRIPTIONS
Function
Connection
Hysteresis control, digital input
GND for 10°C or V+ for 2°C
Ground, connected to the back side of the die
through lead frame.
System GND
Not Connected Inside Part
Ground or No Connect
Supply input
2.7V to 5.5V with a 0.1µF bypass capacitor. For PSRR
information see Section Titled NOISE CONSIDERATIONS.
Overtemperature Shutdown open-drain active low Controller interrupt, system or power supply shutdown; pull-up
thermostat digital output
resistor 10kΩ
Overtemperature Shutdown push-pull active high Controller interrupt, system or power supply shutdown
thermostat digital output
Undertemperature Shutdown open-drain active
low thermostat digital output
System or power supply shutdown; pull-up resistor 10kΩ
Undertemperature Shutdown push-pull active
high thermostat digital output
System or power supply shutdown
(1) Pin 5 functionality and trip point setting are programmed during LM26NV manufacture.
LM26CIM5-YPE Simplified Block Diagram and Connection Diagram
HYST
GND
NC
REF
TEMP
SENSOR
HYST
+
-
TOS
OS
TOS - THYST
OS
V+ = 2.7V
to 5.5V
Temp. of
Leads
HYST = GND for 10°C Hysteresis
HYST = V+ for 2°C Hysteresis
The LM26CIM5-YPE has a fixed trip point of 115°C. For other trip point and output function availability, please see
ordering information or contact Texas Instruments.
Figure 2.
These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam
during storage or handling to prevent electrostatic damage to the MOS gates.
2
Submit Documentation Feedback
Product Folder Links: LM26NV
Copyright © 2008–2013, Texas Instruments Incorporated


Part Number LM26NV
Description Factory Preset Thermostat
Maker etcTI
PDF Download

LM26NV Datasheet PDF






Similar Datasheet

1 LM26NV Factory Preset Thermostat
etcTI





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

Privacy Policy