S58LM20A

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www.sii-ic.com CMOS TEMPERATURE SENSOR IC © Seiko Instruments Inc., 2007-2015 Rev.3.1_00 Seiko Instruments Inc. 1 The S-58LM20A Series is a high-accuracy temperature sensor IC on a single chip, provides output voltage which is linear against the temperature change. Each chip consists of a temperature sensor, a constant current circuit, and an operational amplifier. The operating ambient temperature is from –55°C to 130°C. This IC has much better linearity than other conventional temperature sensors such as thermistor, it is possible to achieve the extensive application for temperature control.  Features

• Accuracy against temperature ±2.5°C (−55°C to +130°C)
• Linear output voltage −11.77 mV/°C Typ. Ta = −30°C： 2.205 V Typ. Ta = +30°C： 1.515 V Typ. Ta = +130°C： 0.303 V Typ.
• Nonlinearity ±0.4% Typ. (−20 to +80°C)
• Operation in wide range of power supply voltage V DD = 2.4 to 5.5 V (−30°C to +130°C) VDD = 2.7 to 5.5 V (−55°C to +130°C)
• Low current consumption 4.5 μA Typ. (+25°C) 6.0 μA Max. (−55°C to +130°C)
• Built-in operational amplifier
• Output voltage referred to VSS
• Lead-free, Sn 100%, halogen-free*1 *1. Refer to “ Product Name Structure” for details.  Applications
• Compensation of high-frequency circuits such as cellular phones and radio equipment
• Compensation of oscillation frequency in crystal oscillator
• LCD contrast compensation
• Compensation of amplifier gain
• Compensation of auto focus circuits
• Temperature detection in battery management
• Overheating prevention for charged batteries or halogen lights  Package
• SC-82AB
• SNT-4A
• WLP-4B

CMOS TEMPERATURE SENSOR IC S-58LM20A Series Rev.3.1_00 Seiko Instruments Inc. 2  Block Diagram Temperature sensor VOUT VDD VSS Figure 1

CMOS TEMPERATURE SENSOR IC Rev.3.1_00 S-58LM20A Series Seiko Instruments Inc. 3  Product Name Structure Users can select the product type in the S-58LM20A Series. Refer to “1. Product name” regarding the contents of product name, “2. Package” regarding the package drawings and “3. Product name list” regarding the product type. 1. Product name (1) SC-82AB package S-58LM20A - N4T1 x Package name (abbreviation) and packing specifications*1 N4T1 : SC-82AB, Tape Product name Environmental code U: Lead-free (Sn 100%), halogen-free G: Lead-free (for details, please contact our sales office) *1. Refer to the tape drawing. (2) SNT-4A package S-58LM20A - I4T1 U Package name (abbreviation) and packing specifications*1 I4T1 : SNT-4A, Tape Product name Environmental code U: Lead-free (Sn 100%), halogen-free *1. Refer to the tape drawing. (3) WLP-4B package S-58LM20A - H4T1 S Environmental code S: Lead-free, halogen-free Package name (abbreviation) and packing specifications*1 H4T1 : WLP-4B, Tape Product name *1. Refer to the tape drawing.

CMOS TEMPERATURE SENSOR IC S-58LM20A Series Rev.3.1_00 Seiko Instruments Inc. 4 2. Package Package Name Drawing Code Package Tape Reel Land SC-82AB NP004-A-P-SD NP004-A-C-SD NP004-A-R-SD ⎯ SNT-4A PF004-A-P-SD PF004-A-C-SD PF004-A-R-SD PF004-A-L-SD WLP-4B HB004-C-P-SD HB004-C-C-SD HB004-C-R-SD ⎯ 3. Product name list Table 1 Product Name Temperature Accuracy Package S-58LM20A-N4T1x ±2.5°C SC-82AB S-58LM20A-I4T1U ±2.5°C SNT-4A S-58LM20A-H4T1S ±2.5°C WLP-4B Remark 1. x: G or U 2. Please select products of environmental code = U for Sn 100%, halogen-free products.

CMOS TEMPERATURE SENSOR IC Rev.3.1_00 S-58LM20A Series Seiko Instruments Inc. 5  Pin Configuration 4 3 1 2 SC-82AB Top view Table 2 Pin No. Pin Name Description

1 VDD Power supply pin

2 VSS GND pin

3 NC*1 No connection

4 VOUT Output voltage pin

*1. The NC pin is electrically open. The NC pin can be connected to VDD or VSS. Figure 2 SNT-4A Top view 1 4 2 3 Table 3 Pin No. Pin Name Description

1 VSS GND pin

2 VDD Power supply pin

3 VOUT Output voltage pin

4 NC*1 No connection

*1. The NC pin is electrically open. The NC pin can be connected to VDD or VSS. Figure 3 WLP-4B Top view Table 4 Pin No. Pin Name Description

2 VSS*1 GND pin

3 VSS*1 GND pin

*1. Connect both VSS pins to GND. Figure 4 WLP-4B Bottom view 1 2 4 3 Figure 5

CMOS TEMPERATURE SENSOR IC S-58LM20A Series Rev.3.1_00 Seiko Instruments Inc. 6  Absolute Maximum Ratings Table 5 (Ta = 25°C unless otherwise specified) Item Symbol Absolute Maximum Rating Unit Power supply pin voltage V DD V SS – 0.3 to VSS + 6.5 V Output voltage V OUT V SS – 0.3 to VDD + 0.3 V Power dissipation SC-82AB PD 350*1 mW SNT-4A 300*1 mW WLP-4B 290*1 mW Operating ambient temperature T opr –55 to +130 °C Storage temperature T stg –65 to +150 °C *1. When mounted on board [Mounted board] (1) Board size: 114.3 mm × 76.2 mm × t1.6 mm (2) Board name: JEDEC STANDARD51-7 Caution The absolute maximum ra tings are rated values exceeding which the product could suffer physical damage. These values must therefore not be exceeded under any conditions.

CMOS TEMPERATURE SENSOR IC Rev.3.1_00 S-58LM20A Series Seiko Instruments Inc. 7  Electrical Characteristics Table 6 (Ta = 25°C, VDD = 2.7 V, IOUT = 0 A unless otherwise specified) Item Symbol Conditions Min. Typ. Max. Unit Test Circuit Range of power supply voltage V DD −30°C ≤ Ta ≤ +130°C 2.4 ⎯ 5.5 V 1 Output voltage VOUT Ta = −30°C 2.177 2.205 2.234 V 1 Ta = +30°C 1.486 1.515 1.545 V 1 Ta = +130°C 0.272 0.303 0.335 V 1 Temperature sensitivity V SE −30°C ≤ Ta ≤ +130°C −12.20 −11.77 −11.40 mV/ °C ⎯ Nonlinearity ΔNL −20°C ≤ Ta ≤ +80°C ⎯ ±0.4 ⎯ % ⎯ Operating temperature range Topr ⎯ −55 ⎯ 130 °C ⎯ Current consumption I DD −55°C ≤ Ta ≤ +130°C ⎯ 4.5 6.0 μA 1 Current consumption − Power supply voltage ΔIDD1 V DD = 2.4 V to 5.5 V ⎯ 0.1 ⎯ μA 1 Current consumption − Temperature ΔIDD2 ⎯ ⎯ －11 ⎯ nA/ °C 1 Line regulation ΔVOUT1 V DD = 2.4 V to 5.5 V ⎯ ⎯ 3.3 mV/V 2 Load regulation*1 ΔVOUT2 I OUT = 0 μA to 16 μA ⎯ ⎯ 0.156 mV/ μA2 *1. Do not flow current into the output voltage pin.

CMOS TEMPERATURE SENSOR IC Rev.3.1_00 S-58LM20A Series Seiko Instruments Inc. 9  Explanation of Terms 1. Output voltage (VOUT) VOUT indicates the output voltage at Ta = −30°C, Ta = +30°C, and Ta = +130°C. Output voltage 0°C +130°C +30°C Temperature [Ta] −30°C Max. Min. Figure 8

CMOS TEMPERATURE SENSOR IC S-58LM20A Series Rev.3.1_00 Seiko Instruments Inc. 10 2. Temperature Sensitivity (VSE) VSE is the temperature coefficient of output voltage which is calculated from an output voltage when Ta = −30°C and Ta = +130°C. VSE is calculated from the following formula. [ ] *2*1 160 VVV OUTOUT SE Output voltage VOUT (when Ta = −30°C) VOUT (when Ta = +130°C) VSE 0°C +130°C +30°C Temperature [Ta] −30°C Figure 9 *1. VOUT value at Ta = +130°C [V] *2. VOUT value at Ta = −30°C [V] *3. The difference of the temperature between Ta = +130°C and Ta = −30°C [°C]

CMOS TEMPERATURE SENSOR IC Rev.3.1_00 S-58LM20A Series Seiko Instruments Inc. 11 3. Nonlinearity (ΔNL) ΔNL is the nonlinearity of output voltage. Its deviation with the approximation line is shown below. ΔNL is calculated from the following formula. 100 b a∆NL ×= 2* Output voltage a VOUT (when −20°C) a b a VOUT (when +80°C) (B) Actual measured value (A) Approximation line 0°C +80°C Temperature [Ta] −20°C *1. The maximum deviation of the actual measurement of output voltage (B) and an approximation line (A) in temperature −20°C to +80°C. The approximation line is the one to be drawn so that “a” should be the minimum value. *2. The difference of the actual measured value of output voltage when −20°C and +80°C. Figure 10 4. Line regulation (ΔVOUT1) ΔVOUT1 indicates the dependency of output voltage against input voltage. This indicates how much the output voltage varies when changing the input voltage after fixing the output current constant. 5. Load regulation (ΔVOUT2) ΔVOUT2 indicates the dependency of output voltage against output current. This indicates how much the output voltage varies when changing output current after fixing the input voltage constant. 6. Current consumption – Power supply voltage (ΔIDD1) ΔIDD1 indicates the dependency of current consumption against power supply voltage. This indicates how much current consumption varies when changing the temperature after fixing an output current constant. 7. Current consumption － Temperature (ΔIDD2) ΔIDD2 indicates the dependency of current consumption against temperature. This indicates how much current consumption varies when changing the temperature after fixing an output current constant.

CMOS TEMPERATURE SENSOR IC S-58LM20A Series Rev.3.1_00 Seiko Instruments Inc. 12  Precautions

• Wire each pin of VDD, VSS and VOUT carefully in order to set them in low impedance when wiring an IC on a patterned board.
• In this IC, if load capacitance of the VOUT pin is large, VOUT pin voltage may oscillate. It is recommended not to use an external capacitor between the VOUT and VSS pin. When using an external capacitor, set near the VOUT pin. When connecting an A/D converter etc. to the VOUT pin, the input pin capacitance of the A/D converter and the parasitic capacitance component between wires are included as load capacitance. To prevent oscillation, it is recommended to use the following output load condition. Load capacitance of VOUT pin (C L1) : 300 pF or less VDD CL1 VOUT VSS CIN VOUT S-58LM20A Series Figure 11 Caution The above connection diag ram and constant will not guarantee successful operation. Perform through evaluation using the actual application to set the constant.

CMOS TEMPERATURE SENSOR IC S-58LM20A Series Rev.3.1_00 Seiko Instruments Inc. 14

• For stabilization, set a capacitor (C IN) of approx. 0.1 μF between VDD and VSS pin.
• Do not connect a pull-up resistor to the output pin.
• The application condition for input voltage, output vo ltage and load voltage must not exceed the package power dissipation.
• Do not apply an electrostatic discharge to this IC that ex ceeds the performance ratings of the built-in electrostatic protection circuit.
• Regarding the current at the output pin, refer to load regulation and footnote *1 in Table 6 “ Electrical Characteristics”.
• SII claims no responsibility for any disputes arising out of or in connection with any infringement by products including this IC of patents owned by a third party.

CMOS TEMPERATURE SENSOR IC Rev.3.1_00 S-58LM20A Series Seiko Instruments Inc. 15  Characteristics (Typical Data) 1. Output voltage (VOUT) vs. Temperature (Ta) 2. Current consumption (I DD) vs. Temperature (Ta) −55 −20 0 100 3.0 2.5 2.0 1.5 1.0 0.5 130 VOUT [V] Ta [°C] 804020 60 120−40 −55 −20 0 100 5.0 4.4 4.0 3.6 3.0 130 IDD [μA] Ta [°C] 804020 60 120−40 3.2 3.4 3.8 4.2 4.6 4.8 VDD = 5.5 V VDD = 2.7 V VDD = 2.4 V 3. Error range of each temperature 4. Current consumption (IDD) vs. Power supply voltage (VDD) −55 −20 0 100 130 Ta [°C] 804020 60 120−40 2.4 3.0 5.0 5.5 IDD [μA] VDD [V] 4.0 4.5 Ta = 30°C Ta = 130°C Ta = −30°C Ta = −55°C 3.5 5. Output voltage (VOUT) vs. Power supply voltage (VDD) 2.4 3.0 5.0 2.210 2.203 2.202 2.200 5.5 Ta = 30C VOUT [V] VDD [V] 4.0 4.5 2.201 2.209 3.5 2.204 2.205 2.206 2.207 2.208 2.4 3.0 5.0 1.520 1.513 1.512 1.510 5.5 Ta = 30C VOUT [V] VDD [V] 4.0 4.5 1.511 1.519 3.5 1.514 1.515 1.516 1.517 1.518 2.4 3.0 5.0 0.310 0.303 0.302 0.300 5.5 Ta = 130C VOUT [V] VDD [V] 4.0 4.5 0.301 0.309 3.5 0.304 0.305 0.306 0.307 0.308 Difference between the temperature converted into approximation line and actual temperature [°C]

CMOS TEMPERATURE SENSOR IC S-58LM20A Series Rev.3.1_00 Seiko Instruments Inc. 16 6. Output voltage (VOUT) vs. Load current (IOUT) 3.0 1.0 2.0 VDD = 2.4 V VOUT [V] IOUT [mA] 0.5 2.5 0.5 1.5 1.0 1.5

2.0 Ta = 30°C

Ta = 130°C Ta = 30°C 3.0 1.0 3.0 VDD = 2.7 V VOUT [V] IOUT [mA] 0.5 2.5 1.0 1.5 1.5 2.5 Ta = 130°C Ta = 55°C 0.5 2.0 3.0 1.0 10.0 VDD = 5.5 V VOUT [V] IOUT [mA] 0.5 2.5 4.0 1.5 6.0 8.0 2.0 2.0 Ta = 30°C Ta = 130°C Ta = −55°C 7. Heat response Output voltage (VOUT) vs. Time (t) When packages are put into the air of 130°C from the air of 25°C When packages are put into the liquid of 130°C from the air of 25°C 0 20 200 1.8 0.6 0.4 240 VOUT [V] t [s] 80 140 0.2 1.6 0.8 1.0 1.2 1.4 40 100 120 220 160 160 SC-82AB SNT-4A WLP-4B 0 5 1.8 0.6 0.4 VOUT [V] t [s] 15 25 0.2 1.6 0.8 1.0 1.2 1.4 20 40 30 35 SC-82AB SNT-4A WLP-4B 8. Start up response VOUT t (50s / div.) Ta = 25C, CL = 100pF, RL = 10 M 1 V / div. GND 1 V / div. GND VDD (= 5.5 V) Ta = 25C, CL = 100pF, RL = 10 M VDD (= 2.4 V) VOUT t (50s / div.) 1 V / div. GND 1 V / div. GND

CMOS TEMPERATURE SENSOR IC Rev.3.1_00 S-58LM20A Series Seiko Instruments Inc. 17  Marking Specifications 1. SC-82AB (1) (2) (3) 1 2 Top view (1) to (3) : Product code (refer to Product name vs. Product code) Product name vs. Product code Product name Product code (1) (2) (3) S-58LM20A-N4T1x D R E Remark 1. x: G or U 2. Please select products of environmental code = U for Sn 100%, halogen-free products. 2. SNT-4A Top view (1) (2) (3) (1) to (3) : Product code (refer to Product name vs. Product code) Product name vs. Product code Product name Product code (1) (2) (3) S-58LM20A-I4T1U D R E 3. WLP-4B Top view (1) (2) (1) to (2) : Lot number

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