TMP390 Ultra-small, dual-channel (hot & cold trip), 0.5-µA, resistor-programmable temperature switch | TI.com

TMP390
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Ultra-small, dual-channel (hot & cold trip), 0.5-µA, resistor-programmable temperature switch

 

Description

The TMP390 device is part of a family of ultra-low power, dual channel, resistor programmable temperature switches that enable protection and detection of system thermal events from –50°C to 130°C. The TMP390 offers independent overtemperature (hot) and undertemperature (cold) detection. The trip temperatures (TTRIP) and thermal hysteresis (THYST) options are programmed by two E96-series (1%) standard decade value resistors on the SETA and SETB pins. Each resistor can range from 1.05 KΩ to 909 KΩ, representing one of 48 unique values.

The values of the resistor to ground on SETA input sets the TTRIP threshold of Channel A. The value of the resistor to ground on SETB input sets the TTRIP threshold of Channel B, as well as the THYST options of 5°C, or 10°C for both channels, to prevent undesired digital output switching. Resistors accuracy has no impact to TTRIP accuracy.

To enable customer board-level manufacturing, the TMP390 supports a trip test function where the digital outputs are activated by exercising the SETA or SETB pin.

Features

  • Resistor programmable temperature trip points and hysteresis options
    • Resistor tolerances contribute zero error
    • Hysteresis options: 5°C, and 10°C
  • Separate outputs for overtemperature or undertemperature detection
    • Channel A (overtemperature): +30 to +124°C, 2°C steps
    • Channel B (undertemperature): –50 to +25°C, 5°C steps
  • Accuracy level options (maximum at −55°C to +130°C):
    • A2 Level: ±3.0°C (±1.5°C from 0°C to +70°C)
    • A3 Level: ±3.5°C (±2.0°C from 0°C to +70°C)
  • Ultra-low power consumption: 0.5 µA typical at 25°C
  • Operating temperature range: −55°C to +130°C
  • Supply voltage: 1.62 to 5.5 V
  • Open-drain outputs
  • Trip test function enables in-system testing
  • Available in an SOT-563 (1.60-mm × 1.20-mm), 6-pin package

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Parametrics

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Part number Order Operating temperature range (C) Accuracy over temp range (Max) (C) Sensor gain (mV/Deg C) SetPoint value (deg C) SetPoint type Output type Supply voltage (Min) (V) Supply voltage (Max) (V) Supply current (Typ) (uA) Comparator channels (#) Features Rating Package Group Package size: mm2:W x L (PKG) Interface
TMP390 Order now -55 to 130     1.5       -50C to 124C     Resistor Programmable     Open Drain     1.62     5.5     0.5     2     Hysteresis (5°C or 10°C)     Catalog     SOT-5X3 | 6     6SOT-5X3: 2 mm2: 1.2 x 1.6 (SOT-5X3 | 6)      
LM56 Order now -40 to 125     3     6.2     -40 to 125     Resistor Programmable     Open Drain     2.7     10     230     2     Built-in Hysteresis
Hysteresis (5°C)
Temperature Sensor and Switch    
Catalog     SOIC | 8
VSSOP | 8    
8SOIC: 19 mm2: 3.91 x 4.9 (SOIC | 8)
8VSSOP: 15 mm2: 4.9 x 3 (VSSOP | 8)    
Analog Output
Switch    
LM57 Order now -50 to 150     1.5     -5.2 to -12.9     -40 to 150     Resistor Programmable     Open Drain
Push Pull    
2.4     5.5     24     1     Built-in Hysteresis
Hysteresis (5°C or 10°C)
Temperature Sensor and Switch
Trip Test    
Catalog     TSSOP | 8
WSON | 8    
8TSSOP: 19 mm2: 6.4 x 3 (TSSOP | 8)
8WSON: 6 mm2: 2.5 x 2.5 (WSON | 8)    
Analog Output
Switch    
TMP302 Order now -40 to 125     2       50, 55, 60, 65
70, 75, 80, 85
90, 95, 100, 105
110, 115, 120, 125    
Pin-Selectable     Open Drain     1.4     3.6     8     1     Hysteresis (5°C or 10°C)
Pin-Selectable Hysteresis    
Catalog     SOT-5X3 | 6     6SOT-5X3: 2 mm2: 1.2 x 1.6 (SOT-5X3 | 6)     Switch    
TMP303 Order now -40 to 125     1       0, 60
0, 55
-20, 60    
Factory Programmed     Push Pull     1.4     3.6     3.5     2     Hysteresis (1°C or 2°C or 5°C or 10°C)     Catalog     SOT-5X3 | 6     6SOT-5X3: 2 mm2: 1.2 x 1.6 (SOT-5X3 | 6)     Switch    
TMP392 Order now -55 to 130     1.5       +30 to 124     Resistor Programmable     Open Drain     1.62     5.5     0.5     2     Hysteresis (5°C or 10°C)     Catalog     SOT-5X3 | 6     6SOT-5X3: 2 mm2: 1.2 x 1.6 (SOT-5X3 | 6)      
TMP708 Order now -40 to 125