S-5855A Series PWM OUTPUT TEMPERATURE SENSOR IC www.sii-ic.com Rev.1.2_01 © SII Semiconductor Corporation, 2010-2013 The S-5855A Series, developed by CMOS technology, is a 1-wire PWM output temperature sensor IC of low current consumption that itself changes the duty ratio according to temperature. The duty ratio decreases from 100% if exceeding the temperature set by user, and this decrease is linear against the temperature rise. The output form is selectable from CMOS output and Nch open-drain output. Its small packages SNT-4A and SOT-23-5 enable high-density mounting. Features • PWM output • Temperature accuracy • Duty ratio change-start temperature • Duty ratio temperature sensitivity • Low current consumption • Low power supply voltage • Wide range of operation temperature • Lead-free (Sn 100%), halogen-free : 1-wire PWM interface : ±3.0°C : Selectable from +40°C to +80°C in 10°C step : Selectable from −1 %/°C to −4 %/°C in 1 %/°C step : 50 μA typ. (Ta = +25°C) : 1.65 V to 5.5 V : Ta = −40°C to +125°C Application • Temperature compensation for LED instruments Packages • SNT-4A • SOT-23-5 1 PWM OUTPUT TEMPERATURE SENSOR IC S-5855A Series Rev.1.2_01 Block Diagrams 1. CMOS output product VDD Temperature *1 sensor + Triangle wave − DOUT generator VSS CF CFREQ *1. Parasitic diode Figure 1 2. Nch open-drain output product VDD Temperature *1 sensor + Triangle wave generator VSS CF CFREQ *1. Parasitic diode Figure 2 2 DOUT − PWM OUTPUT TEMPERATURE SENSOR IC S-5855A Series Rev.1.2_01 Product Name Structure 1. Product name S-5855 A x x x − xxxx U Environmental code U ：Lead-free (Sn 100%), halogen-free Package name (abbreviation) and packing specifications*1 I4T1 ：SNT-4A, Tape M5T1 ：SOT-23-5, Tape Output form A ：CMOS output B ：Nch open-drain output Duty ratio temperature sensitivity A ：−1 %/°C B ：−2 %/°C C ：−3 %/°C D ：−4 %/°C Duty ratio change-start temperature A ：+40°C B ：+50°C C ：+60°C D ：+70°C E ：+80°C *1. Refer to the tape drawing. 2. Packages Package Name SNT-4A SOT-23-5 Package PF004-A-P-SD MP005-A-P-SD Drawing Code Tape Reel PF004-A-C-SD PF004-A-R-SD MP005-A-C-SD MP005-A-R-SD Land PF004-A-L-SD − 3 PWM OUTPUT TEMPERATURE SENSOR IC S-5855A Series 3. Rev.1.2_01 Product name list (1) SNT-4A Table 1 Duty ratio temperature sensitivity Ddt(s)*2 [%/°C] −3 Output form TSP5*3 [°C] TEM5*4 [°C] S-5855AACA-I4T1U Duty ratio change-start temperature TS*1 [°C] +40 CMOS output +45 +60 S-5855AEAA-I4T1U +80 −1 CMOS output +85 +125 S-5855AECA-I4T1U +80 −3 CMOS output +85 +100 Product name *1. TS : *2. Ddt(s) : *3. TSP5 : *4. TEM5 : Duty ratio change-start temperature set by user Duty ratio temperature sensitivity set by user Temperature 5°C higher than duty ratio change-start temperature TS (Refer to Table 12 for details) Higher temperature when measuring duty ratio temperature sensitivity (Refer to Table 12 for details) Remark Please contact our sales office for products other than those specified above. (2) SOT-23-5 Table 2 Duty ratio temperature sensitivity Ddt(s)*2 [%/°C] −1 Output form TSP5*3 [°C] TEM5*4 [°C] S-5855AAAA-M5T1U Duty ratio change-start temperature TS*1 [°C] +40 CMOS output +45 +115 S-5855AAAB-M5T1U +40 −1 Nch open-drain output +45 +115 S-5855AADA-M5T1U +40 −4 CMOS output +45 +55 Product name Duty ratio change-start temperature set by user *1. TS : *2. Ddt(s) : Duty ratio temperature sensitivity set by user *3. TSP5 : Temperature 5°C higher than duty ratio change-start temperature TS (Refer to Table 12 for details) *4. TEM5 : Higher temperature when measuring duty ratio temperature sensitivity (Refer to Table 12 for details) Remark Please contact our sales office for products other than those specified above. 4 PWM OUTPUT TEMPERATURE SENSOR IC S-5855A Series Rev.1.2_01 Pin Configurations SNT-4A Table 3 Top view 1 4 2 3 Pin No. Symbol 1 VSS 2 CF 3 VDD 4 DOUT Pin Description GND pin Connection pin for frequency control capacitor Power supply pin Output pin Figure 3 Table 4 SOT-23-5 Top view 5 1 4 2 3 Pin No. Symbol Pin Description 1 CF 2 VSS Connection pin for frequency control capacitor GND pin 3 NC*1 No connection 4 DOUT 5 VDD Output pin Power supply pin *1. The NC pin is electrically open. The NC pin can be connected to VDD pin or VSS pin. Figure 4 5 PWM OUTPUT TEMPERATURE SENSOR IC S-5855A Series Rev.1.2_01 Absolute Maximum Ratings Table 5 (Ta = +25°C, VSS = 0 V, unless otherwise specified) Symbol Absolute Maximum Rating Unit Item Power supply voltage Output voltage VDD CMOS output product Nch open-drain output product VOUT VSS −0.3 to VSS +7.0 V VSS −0.3 to VDD +0.3 V VSS −0.3 to VSS +7.0 V CF voltage VCF VSS −0.3 to VDD +0.3 V Output current IOUT −13 to +13 300*1 mA mW 600*1 mW Power dissipation SNT-4A SOT-23-5 PD Operating ambient temperature Topr −40 to +125 °C Storage temperature Tstg −65 to +150 °C *1. When mounted on board [Mounted board] (1) Board size: 114.3 mm × 76.2 mm × t1.6 mm (2) Name: JEDEC STANDARD51-7 Caution The absolute maximum ratings are rated values exceeding which the product could suffer physical damage. These values must therefore not be exceeded under any conditions. 6 PWM OUTPUT TEMPERATURE SENSOR IC S-5855A Series Rev.1.2_01 Electrical Characteristics 1. Common items Table 6 Item (Ta = TSP5, VDD = 3.0 V, VSS = 0 V, unless otherwise specified) Test Condition Min. Typ. Max. Unit circuit Symbol Power supply voltage VDD Current consumption IDD Output leakage current ILEAK − No load at output pin 1.65 − 5.5 V 1 Ta = TSP5 − − 200 μA 1 Ta = +25°C (Duty ratio 100%) − 50 − μA 1 − − 1 μA 3 0.8 − − mA 3 3 − − mA 3 − 20 − ns 5 − 20 − ns 4 − 300 − ns 5 − 50 − ns 4 Nch open-drain output product VOUT = 5.5 V, Ta = +25°C CMOS output product VOUT = VDD − 0.3 V VOUT = VSS + 0.3 V Output source current ISOURCE Output sink current ISINK Fall time tF Nch open-drain output product CL = 100 pF, RL = 10 kΩ VOUT = 0.8 × VDD to 0.2 × VDD CMOS output product tR Nch open-drain output product CL = 15 pF, RL = 10 kΩ VOUT = 0.2 × VDD to 0.8 × VDD CMOS output product CL = 100 pF, RL = 10 kΩ VOUT = 0.2 × VDD to 0.8 × VDD Rise time 7 PWM OUTPUT TEMPERATURE SENSOR IC S-5855A Series Rev.1.2_01 Product with duty ratio temperature sensitivity Ddt(s) = −1 %/°C 2. Table 7 Item Duty ratio accuracy Symbol Dsp5 Duty ratio temperature Ddt(E)*1 sensitivity Oscillation frequency *1. *2. *3. 3. fOSC (Ta = TSP5, VDD = 3.0 V , VSS = 0 V, CFREQ = 2.2 nF, unless otherwise specified) Condition Min. Typ. Max. Unit Test circuit VDD = 3.0 V 92.0 95.0 98.0 % 2 VDD = 1.65 V to 5.5 V 91.0 95.0 99.0 % 2 −1.2 −1.0 −0.8 %/°C 2 Ta = TSP5*2, VDD = 3.0 V TEM5*3 VDD = 1.65 V to 5.5 V −1.26 −1.0 −0.76 %/°C 2 VDD = 3.0 V 1950 2300 2650 Hz 2 Ta = TSP5 VDD = 1.65 V to 5.5 V 1860 2300 2780 Hz 2 Ta = TEM5 VDD = 3.0 V 1670 2300 3040 Hz 2 Ddt(E): Actual duty ratio temperature sensitivity TSP5: Temperature 5°C higher than duty ratio change-start temperature TS (Refer to Table 12 for details) TEM5: Higher temperature when measuring duty ratio temperature sensitivity (Refer to Table 12 for details) Product with duty ratio temperature sensitivity Ddt(s) = −2 %/°C Table 8 Item Duty ratio accuracy Symbol Dsp5 Duty ratio temperature Ddt(E)*1 sensitivity Oscillation frequency *1. *2. *3. 8 fOSC (Ta = TSP5, VDD = 3.0 V , VSS = 0 V, CFREQ = 4.7 nF, unless otherwise specified) Conditions Min. Typ. Max. Unit Test circuit VDD = 3.0 V 84.0 90.0 96.0 % 2 VDD = 1.65 V to 5.5 V 82.0 90.0 98.0 % 2 −2.4 −2.0 −1.6 %/°C 2 Ta = TSP5*2, VDD = 3.0 V TEM5*3 VDD = 1.65 V to 5.5 V −2.52 −2.0 −1.52 %/°C 2 VDD = 3.0 V 1840 2160 2740 Hz 2 Ta = TSP5 VDD = 1.65 V to 5.5 V 1750 2160 2600 Hz 2 Ta = TEM5 VDD = 3.0 V 1560 2160 2850 Hz 2 Ddt(E): Actual duty ratio temperature sensitivity TSP5: Temperature 5°C higher than duty ratio change-start temperature TS (Refer to Table 12 for details) TEM5: Higher temperature when measuring duty ratio temperature sensitivity (Refer to Table 12 for details) PWM OUTPUT TEMPERATURE SENSOR IC S-5855A Series Rev.1.2_01 4. Product with duty ratio temperature sensitivity Ddt(s) = −3 %/°C Table 9 Items Duty ratio accuracy Symbol Dsp5 Duty ratio temperature Ddt(E)*1 sensitivity Oscillation frequency *1. *2. *3. 5. fOSC (Ta = TSP5, VDD = 3.0 V , VSS = 0 V, CFREQ = 6.8 nF, unless otherwise specified) Conditions Min. Typ. Max. Unit Test circuit VDD = 3.0 V 76.0 85.0 94.0 % 2 VDD = 1.65 V to 5.5 V 73.0 85.0 97.0 % 2 −3.6 −3.0 −2.4 %/°C 2 Ta = TSP5*2, VDD = 3.0 V TEM5*3 VDD = 1.65 V to 5.5 V −3.78 −3.0 −2.28 %/°C 2 VDD = 3.0 V 1900 2240 2570 Hz 2 Ta = TSP5 VDD = 1.65 V to 5.5 V 1810 2240 2700 Hz 2 Ta = TEM5 VDD = 3.0 V 1620 2240 2950 Hz 2 Ddt(E): Actual duty ratio temperature sensitivity TSP5: Temperature 5°C higher than duty ratio change-start temperature TS (Refer to Table 12 for details) TEm5: Higher temperature when measuring duty ratio temperature sensitivity (Refer to Table 12 for details) Product with duty ratio temperature sensitivity Ddt(s) = −4 %/°C Table 10 Items Duty ratio accuracy Symbol Dsp5 Duty ratio temperature Ddt(E)*1 sensitivity Oscillation frequency *1. *2. *3. fOSC (Ta = TSP5, VDD = 3.0 V , VSS = 0 V, CFREQ = 10 nF, unless otherwise specified) Conditions Min. Typ. Max. Unit Test circuit VDD = 3.0 V 68.0 80.0 92.0 % 2 VDD = 1.65 V to 5.5 V 64.0 80.0 96.0 % 2 −4.8 −4.0 −3.2 %/°C 2 Ta = TSP5*2, VDD = 3.0 V TEM5*3 VDD = 1.65 V to 5.5 V −5.05 −4.0 −3.04 %/°C 2 VDD = 3.0 V 1730 2030 2330 Hz 2 Ta = TSP5 VDD = 1.65 V to 5.5 V 1640 2030 2440 Hz 2 Ta = TEM5 VDD = 3.0 V 1470 2030 2680 Hz 2 Ddt(E): Actual duty ratio temperature sensitivity TSP5: Temperature 5°C higher than duty ratio change-start temperature TS (Refer to Table 12 for details) TEM5: Higher temperature when measuring duty ratio temperature sensitivity (Refer to Table 12 for details) 9 PWM OUTPUT TEMPERATURE SENSOR IC S-5855A Series Rev.1.2_01 Test Circuits 1. A CIN VDD CF V S-5855A DOUT Series Open VSS CFREQ Figure 5 2. *1 R 10 kΩ CIN VDD VSS Oscilloscope S-5855A CF Series DOUT V CFREQ *1. Resistor (R) is unnecessary for the CMOS output product. Figure 6 3. CIN VDD S-5855A CF Series DOUT VSS V Figure 7 10 A PWM OUTPUT TEMPERATURE SENSOR IC S-5855A Series Rev.1.2_01 4. CIN VDD S-5855A CF Series DOUT VSS RL V CL Figure 8 5. RL CIN VDD S-5855A CF Series DOUT VSS V CL Figure 9 11 PWM OUTPUT TEMPERATURE SENSOR IC S-5855A Series Rev.1.2_01 Standard Circuit CIN *1 VDD CF S-5855A DOUT Series VSS CFREQ*2 *1. CIN is a capacitor for stabilization. *2. CFREQ is a capacitor for oscillation frequency. Figure 10 Caution The above connection diagram and constant will not guarantee successful operation. Perform thorough evaluation using the actual application to set the constant. 12 PWM OUTPUT TEMPERATURE SENSOR IC S-5855A Series Rev.1.2_01 Operation 1. Duty ratio The following equation is the definition of duty ratio. Duty ratio = PW / T × 100 [%] The definitions of PW and T are shown in Figure 11. PW T Figure 11 2. Oscillation frequency The oscillation frequency is set by the capacitance value of the capacitor CFREQ for the oscillation frequency. The relationship between the CFREQ capacitance value of each duty ratio temperature sensitivity and the center value of the oscillation frequency are shown in Table 11. Table 11 Duty ratio temperature sensitivity Ddt(s) [%/°C] −1 −2 −3 −4 CFREQ capacitance value [nF] 2.2 4.7 6.8 10.0 Center value of oscillation frequency [Hz] 2300 2160 2240 2030 13 PWM OUTPUT TEMPERATURE SENSOR IC S-5855A Series Rev.1.2_01 Explanation of Terms 1. Duty ratio accuracy (Dsp5) Dsp5 shows duty ratio in temperature TSP5 5°C higher than duty ratio change-start temperature TS. 100 % Dsp5 Duty ratio [%] 5°C TS TSP5 Ta [°C] Figure 12 2. Duty ratio temperature sensitivity (Ddt(E)) Duty ratio temperature sensitivity (Ddt(E)) is the temperature coefficient of duty ratio calculated from the output duty ratio at Ta = TSP5 and Ta = TEM5. TEM5 is the temperature decided for each product shown in Table 11, and Dem5 is the output duty ratio at Ta = TEM5. Ddt(E) is calculated using the following formula. Ddt(E) = (Dem5 − Dsp5) / (TEM5 − TSP5) [%/°C] 100% Ddt(E) Dsp5 Duty ratio [%] Dem5 TS TSP5 Ta [°C] *1. Selectable from −1 %/°C to −4 %/°C in 1 %/°C step Figure 13 14 TEM5 *1 PWM OUTPUT TEMPERATURE SENSOR IC S-5855A Series Rev.1.2_01 Table 12 TSP5 and TEM5 in Each Product Duty ratio change-start temperature TS [°C] Duty ratio temperature sensitivity Ddt(s) [%/°C] +40 +40 +40 +40 +50 +50 +50 +50 +60 +60 +60 +60 +70 +70 +70 +70 +80 +80 +80 +80 −1 −2 −3 −4 −1 −2 −3 −4 −1 −2 −3 −4 −1 −2 −3 −4 −1 −2 −3 −4 TSP5 [°C] +45 +45 +45 +45 +55 +55 +55 +55 +65 +65 +65 +65 +75 +75 +75 +75 +85 +85 +85 +85 TEM5 [°C] +115 +75 +60 +55 +125 +85 +70 +65 +125 +95 +80 +75 +125 +105 +90 +85 +125 +115 +100 +95 15 PWM OUTPUT TEMPERATURE SENSOR IC S-5855A Series Rev.1.2_01 Precaution • Note that this IC may itself heat depending on a connected load to the output pin, resulting in error in measuring temperature. • Set a capacitor (CIN) of approx. 0.1 μF between the VDD pin and VSS pin for stabilization as close to IC as possible. • Connect a capacitor CFREQ for oscillation frequency as close to IC as possible. • Leakage current applied on the CF pin may cause error in the output duty ratio. Do not connect other components than CFREQ. • Since the error of the output duty ratio may become large depending on an application circuit or the design of a board pattern on this IC, perform thorough evaluation with the actually mounted model in the case of use. • The application conditions for the input voltage, output voltage, and load current should not exceed the package power dissipation. • Do not apply an electrostatic discharge to this IC that exceeds the performance ratings of the built-in electrostatic protection circuit. • SII Semiconductor Corporation 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. 16 PWM OUTPUT TEMPERATURE SENSOR IC S-5855A Series Rev.1.2_01 Characteristics (Typical Data) IDD [μA] 1. 2. Current consumption (IDD) vs. Power supply voltage (VDD) 55 50 45 40 35 30 25 20 +125°C +65°C −40°C 1.0 4.0 3.0 VDD [V] 2.0 5.0 6.0 Output source current (ISOURCE) vs. Power supply voltage (VDD) 6.00 +25°C −40°C 5.00 ISOURCE [mA] +25°C 4.00 3.00 +65°C 2.00 +125°C 1.00 0.00 1 3 5 7 VDD [V] 3. Output sink current (ISINK) vs. Power supply voltage (VDD) 12.00 −40°C ISINK [mA] 10.00 +25°C 8.00 6.00 4.00 +125°C 2.00 0.00 1 3 5 +65°C 7 VDD [V] 17 PWM OUTPUT TEMPERATURE SENSOR IC S-5855A Series 4. Rev.1.2_01 Fall time (tF) vs. Power supply voltage (VDD) dependency 50 tF [ns] 40 30 25 10 0 5. 4 3 VDD [V] 2 1 5 6 Rise time (tR) vs.Power supply voltage (VDD) dependency 6. 140 120 100 80 60 40 20 0 5.2 Nch open-drain output product 500 400 tR [ns] tR [ns] 5.1 CMOS output product 200 100 4 3 VDD [V] 2 1 5 0 6 2 1 Ratio [%] 15 10 15 10 5 0 0 92 93 94 95 96 97 98 76 78 80 82 84 86 88 90 92 94 Duty accuracy [%] Duty accuracy [%] Oscillation frequency 7.1 Oscillation frequency (fOSC) vs. Power supply voltage (VDD) 7.2 Oscillation frequency (fOSC) vs. Temperature(Ta) 2300 2300 Ddt(s) = −3%/°C 2250 Ddt(s) = −1%/°C 2200 2150 2100 Ddt(s) = −3%/°C 2250 fOSC [Hz] fOSC [Hz] 6 20 5 18 5 6.2 Product with Ta = TSP5, Ddt(s) = −3 %/°C 25 20 7. 4 3 VDD [V] Duty ratio accuracy 6.1 Product with Ta = TSP5, Ddt(s) = −1 %/°C 25 Ratio [%] 300 1 2 4 3 VDD [V] 5 2150 2100 6 Ddt(s) = −1%/°C 2200 50 75 100 Ta [°C] 125 PWM OUTPUT TEMPERATURE SENSOR IC S-5855A Series Rev.1.2_01 Marking Specifications (1) SNT-4A SNT-4A Top view (1) to (3) : Product code (Refer to Product name vs. Product code.) 4 1 (1) (2) (3) 2 3 Product name vs. Product code Product Name S-5855AACA-I4T1U S-5855AEAA-I4T1U S-5855AECA-I4T1U Product Code (1) (2) (3) V Q C V Q Y V Q 3 (2) SOT-23-5 SOT-23-5 Top view 5 (1) to (3) : (4) : 4 Product code (refer to Product name vs. Product code) Lot number (1) (2) (3) (4) 1 2 3 Product name vs. Product code Product Name S-5855AAAA-M5T1U S-5855AAAB-M5T1U S-5855AADA-M5T1U Product Code (1) (2) (3) V Q A V R A V Q D 19 1.2±0.04 3 4 +0.05 0.08 -0.02 2 1 0.65 0.48±0.02 0.2±0.05 No. PF004-A-P-SD-4.0 TITLE SNT-4A-A-PKG Dimensions PF004-A-P-SD-4.0 No. SCALE UNIT mm SII Semiconductor Corporation +0.1 ø1.5 -0 4.0±0.1 2.0±0.05 0.25±0.05 +0.1 5° 1.45±0.1 2 1 3 4 ø0.5 -0 4.0±0.1 0.65±0.05 Feed direction No. PF004-A-C-SD-1.0 TITLE SNT-4A-A-Carrier Tape No. PF004-A-C-SD-1.0 SCALE UNIT mm SII Semiconductor Corporation 12.5max. 9.0±0.3 Enlarged drawing in the central part ø13±0.2 (60°) (60°) No. PF004-A-R-SD-1.0 SNT-4A-A-Reel TITLE PF004-A-R-SD-1.0 No. SCALE UNIT QTY. 5,000 mm SII Semiconductor Corporation 0.52 1.16 2 0.52 0.35 1. 2. 0.3 1 (0.25 mm min. / 0.30 mm typ.) (1.10 mm ~ 1.20 mm) 0.03 mm 1. Pay attention to the land pattern width (0.25 mm min. / 0.30 mm typ.). 2. Do not widen the land pattern to the center of the package (1.10 mm to 1.20 mm). Caution 1. Do not do silkscreen printing and solder printing under the mold resin of the package. 2. The thickness of the solder resist on the wire pattern under the package should be 0.03 mm or less from the land pattern surface. 3. Match the mask aperture size and aperture position with the land pattern. 4. Refer to "SNT Package User's Guide" for details. 1. 2. (0.25 mm min. / 0.30 mm typ.) (1.10 mm ~ 1.20 mm) No. PF004-A-L-SD-4.1 TITLE SNT-4A-A -Land Recommendation No. PF004-A-L-SD-4.1 SCALE UNIT mm SII Semiconductor Corporation 2.9±0.2 1.9±0.2 4 5 1 2 +0.1 0.16 -0.06 3 0.95±0.1 0.4±0.1 No. MP005-A-P-SD-1.2 TITLE No. SOT235-A-PKG Dimensions MP005-A-P-SD-1.2 SCALE UNIT mm SII Semiconductor Corporation 4.0±0.1(10 pitches:40.0±0.2) +0.1 ø1.5 -0 2.0±0.05 +0.2 ø1.0 -0 0.25±0.1 4.0±0.1 1.4±0.2 3.2±0.2 3 2 1 4 5 Feed direction No. MP005-A-C-SD-2.1 TITLE SOT235-A-Carrier Tape No. MP005-A-C-SD-2.1 SCALE UNIT mm SII Semiconductor Corporation 12.5max. 9.0±0.3 Enlarged drawing in the central part ø13±0.2 (60°) (60°) No. MP005-A-R-SD-1.1 SOT235-A-Reel TITLE No. MP005-A-R-SD-1.1 SCALE QTY. UNIT 3,000 mm SII Semiconductor Corporation Disclaimers (Handling Precautions) 1. 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