SM72480

Manufacturer Part NumberSM72480
ManufacturerTexas Instruments
SM72480 datasheet
 


Specifications of SM72480

Pin/package6SON, 6USON, 6WSON  
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SolarMagic 1.6V, LLP-6 Factory Preset Temperature Switch
and Temperature Sensor
General Description
The SM72480 is a low-voltage, precision, dual-output, low-
power temperature switch and temperature sensor. The tem-
perature trip point (T
) is set at the factory to be 120°C.
TRIP
Built-in temperature hysteresis (T
HYST
ble in an environment of temperature instability.
In normal operation the SM72480 temperature switch outputs
assert when the die temperature exceeds T
ature switch outputs will reset when the temperature falls
below a temperature equal to (T
OVERTEMP digital output, is active-high with a push-pull
structure, while the OVERTEMP digital output, is active-low
with an open-drain structure.
The analog output, V
, delivers an analog output voltage
TEMP
with Negative Temperature Coefficient — NTC.
Driving the TRIP TEST input high: (1) causes the digital out-
puts to be asserted for in-situ verification and, (2) causes the
threshold voltage to appear at the V
could be used to verify the temperature trip point.
The SM72480's low minimum supply voltage makes it ideal
for 1.8 volt system designs. Its wide operating range, low
supply current , and excellent accuracy provide a temperature
switch solution for a wide range of commercial and industrial
applications.
Applications
PV Power Optimizers
Wireless Transceivers
Battery Management
Automotive
Disk Drives
Connection Diagram
LLP-6
Top View
See NS Package Number SDB06A
© 2011 National Semiconductor Corporation
SM72480
Features
Renewable Energy Grade
Low 1.6V operation
Latching function: device can latch the Over Temperature
) keeps the output sta-
condition
Push-pull and open-drain temperature switch outputs
Very linear analog V
. The temper-
TRIP
V
TEMP
− T
). The
2.2 mm by 2.5 mm (typ) LLP-6 package
TRIP
HYST
Excellent power supply noise rejection
Key Specifications
Supply Voltage
Supply Current
Accuracy, Trip Point
output pin, which
TEMP
Temperature
Accuracy, V
V
Output Drive
TEMP
Operating Temperature
Hysteresis Temperature
Typical Transfer Characteristic
V
TEMP
30142001
301420
temperature sensor output
TEMP
output short-circuit protected
0°C to 150°C
0°C to 150°C
TEMP
−50°C to 150°C
4.5°C to 5.5°C
Analog Voltage vs Die Temperature
30142024
www.national.com
May 11, 2011
1.6V to 5.5V
8 μA (typ)
±2.2°C
±2.3°C
±100 μA