STLM20DD9F STMicroelectronics, STLM20DD9F Datasheet - Page 5

• Manufacturer Part Number: STLM20DD9F
• Description: Board Mount Temperature Sensors 2.4V Analog
• Manufacturer: STMicroelectronics

Specifications of STLM20DD9F

• Full Temp Accuracy: +/- 1.5 C
• Package / Case: UDFN-4
• Supply Voltage (max): 6.5 V
• Supply Voltage (min): - 0.2 V
• Gain: - 11.77 mV / C
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Output Type: Analog
• Supply Current: 8 uA
• Ic Output Type: Voltage
• Sensing Accuracy Range: ± 1.5°C
• Temperature Sensing Range: -40°C To +85°C
• Supply Voltage Range: 2.4V To 5.5V
• Sensor Case Style: UDFN
• No. Of Pins: 4
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

STLM20
1
Description
The STLM20 is a precision analog output temperature sensor for low current applications
where maximizing battery life is important. It operates over a –55 °C to 130 °C (grade 7) or
–40 °C to 85 °C (grade 9) temperature range. The power supply operating range is 2.4 V to
5.5 V. The maximum temperature accuracy of the STLM20 is ± 1.5 °C (±0.5 °C typ) at an
ambient temperature of 25 °C and V
and reaches a maximum of ±2.5 °C at the temperature range extremes. The temperature
range is affected by the power supply voltage. For the temperature grade 7 device, a power
supply voltage of 2.7 V to 5.5 V, the temperature range extremes are +130 °C and –55 °C
(decreasing the power supply voltage from 2.7 V to 2.4 V changes the low end of the
operating temperature range from –55 °C to –30 °C, while the positive remains at +130 °C).
The STLM20 has a maximum quiescent supply current of 8 µA. Therefore, self-heating is
negligible.
Figure 1.
1. Pin 2 GND may be grounded or left floating (SOT323-5L only). For optimum thermal conductivity to the PC
Table 1.
Figure 2.
1. Pin 1 NC should be left floating or grounded.
2. Pin 2 GND may be grounded or left floating. For optimum thermal conductivity to the PC board ground
board ground plane, it should be grounded.
plane, it should be grounded.
GND
V
V
NC
OUT
CC
GND (2)
V OUT
NC (1)
Supply voltage
Ground
Output voltage
No connect
Logic diagram
Signal names
Connections (top view)
SOT323-5L
1
2
3
5
4
Doc ID 12495 Rev 13
AI12253
GND
V CC
CC
of 2.7 V. The temperature error increases linearly
V CC
STLM20
GND
(1)
V OUT
V OUT
NC (1)
1
2
UDFN-4L
4
3
Description
AI12253_a
V CC
GND
AI12252
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