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Part Number: ASM121

Function: Temperatue Sensor, Thermistor

Package: 1.2mm x 1.5mm QFN

Manufacturer: Andigilog

Images:

1 page
ASM121 pdf pinout

Description

The ASM121 is a high-precision, 3-lead CMOS silicon thermistor in an ultra-small leadless package that provides a cost-effective solution for applications requiring high-accuracy low-power temperature monitoring. The aSM121 functions in a way that is similar to a PTC thermistor.

However, it is linear-calibrated, enabling application developers to directly interpret output voltage as
temperature without complex compensation for nonlinearity.

Features

1. Precision Calibrated to ±1°C at 25°C

2. Temperature Range : -30°C to 125°C

3. Extremely Linear Output Ramp : 10mV/°C

4. 0°C Output : 0.50V

5. Output Ramp is Calibrated to Degrees Celsius

6. Low Operating Current : 14μA

7. Operating Voltage Range : +2.7 V to +3.6V

3 page
ASM121 datasheet

Applications:

1. Mobile Phones

2. Mobile Communications Terminals

3. Computers

4. Battery Management

5. FAX Machines/Printers/Copiers

6. Portable Medical Instruments

7. HVAC, Power Supply Modules

ASM121 PDF Datasheet

Features

1. Low drain-source ON resistance: RDS (ON) = 1.3 Ω (typ.)

2. High forward transfer admittance: |Yfs| = 3 S (typ.)

3. Low leakage current: IDSS = 100 μA (VDS = 500 V)

4. Enhancement model: Vth = 2.0 to 4.0 V (VDS = 10 V, ID = 1 mA)

Applications:

1. Switching Regulator

Absolute Maximum Ratings (Ta = 25°C)

1. Drain to source voltage: VDSS = 500 V

2. Gate to source voltage: VGSS = ± 30 V

3. Drain current: ID = 5 A

4. Drain Power Dissipation: Pd = 35 W

5. Channel temperature: Tch = 150 °C

6. Storage temperature: Tstg = -55 to +150 °C

Author: pinout

ASM121 PDF Datasheet – Temperatue Sensor, Thermistor

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