TCTH011AE

TCTH0XXXE TOSHIBA | Alldatasheet

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Rev. 2.0 1 © 2023 Toshiba Electronic Devices & Storage Corporation TOSHIBA CMOS Linear Integrated Circuit Silicon Monolithic TCTH0xxxE Series ThermoflaggerTM (Over Temperature Detection IC) The TCTH0xxxE series are the CMOS process IC outputs abnormal-state signal on detecting over temperature as the resistor value changing of external PTC Thermistor. Output current to PTC thermistor is 1 μA (Typ.) and whole current consumption is 1.8 μA (Typ.), low consumption operation is realised. (TCTH01xxE) Selectable Push-pull type, or Open-drain type for FLAG signal output by product. Also, Selectable Auto retry type if PTC thermistor temperature goes down back to lower than threshold, or Latch the abnormal signal type. IC package is ESV (1.6 mm x 1.6 mm x 0.55 mm). Application (Ex)

• Notebook PC, Mobile equipment, home appliance, Industry equipment etc. for over temperature detection. Feature
• Selectable PTCO output current IPTCO = 1 μA (TCTH01xxE, Typ.) IPTCO = 10 μA (TCTH02xxE, Typ.)
• High PTCO output current accuracy ±8 % (VDD = 3.3 V, 25 °C)
• Low current consumption IDD= 1.8 μA (TCTH01xxE, Typ.) IDD= 11.3 μA (TCTH02xxE, Typ.)
• FLAG signal latch function (TCTH0x2xE)
• FLAG signal output (PTCGOOD) TCTH0xxAE: Push-pull type TCTH0xxBE: Open-drain type
• Standard package ESV (SOT-553) (1.6 mm x 1.6 mm x 0.55 mm) “ThermoflaggerTM” is a trademark of Toshiba Electronic Devices & Storage Corporation. ESV Weight: 2.98 mg (Typ.) Start of commercial production 2023-02

Rev. 2.0 2 © 2023 Toshiba Electronic Devices & Storage Corporation Absolute Maximum Ratings (Ta = 25 °C) Characteristics Symbol Ratings Unit Supply Voltage VDD -0.3 to 6.0 V PTCO Voltage VPTCO -0.3 to VDD + 0.3 ≤ 6.0 V PTCGOOD Voltage VPTCGOOD TCTH0xxAE -0.3 to VDD + 0.3 ≤ 6.0 V TCTH0xxBE -0.3 to 6.0 V RESET Voltage VRESET -0.3 to VDD + 0.3 ≤ 6.0 V Power dissipation PD 150 (Note 1) 320 (Note 2) mW Junction Temperature Tj 150 °C Storage Temperature Tstg -55 to 150 °C Note: Using continuously under heavy loads (e.g. the application of high temperature/current/voltage and the significant changing in temperature, etc.) may cause this product to reduce the reliability significantly even if the operating conditions (i.e. operating temperature/current/voltage, etc.) are within the absolute maximum ratings. Please design appropriatly upon reviewing the Toshiba Semiconductor Reliability Handbook (“Handling Precautions”/“Derating Concept and Methods”) and individual reliability data (i.e. reliability test report and estimated failure rate, etc). Note 1: Unit Rating Note 2: Rating at mounting on a board (FR4 board dimension: 30 mm x 30 mm x 0.8 mm) Operating Ranges Note3: There is possibility for significant negative affect for reliability, if this product used long time on the state includes limit or very close condition on Operating ranges. Exposure to such conditions may adver sely impact product reliability lifetime average junction temperature of 107 ºC. Characteristics Symbol Operating Ranges Unit Supply Voltage VDD 1.7 to 5.5 V PTCGOOD Output Voltage VPTCGOOD TCTH0xxAE 0 to VDD V TCTH0xxBE 0 to 5.5 V RESET Voltage VRESET 0 to VDD V Operation Temperature Topr -40 to 125 °C

Rev. 2.0 3 © 2023 Toshiba Electronic Devices & Storage Corporation Pin Assignment (Top view) TCTH0x1xE TCTH0x2xE GND1 21 3 5 4 VDDGND2 PTCGOODPTCO GND 21 3 5 4 VDDRESET PTCGOODPTCO Note4: All GND pin must connect to the system GND. Top Marking (Top view) Example: TCTH022BE PC8

Rev. 2.0 4 © 2023 Toshiba Electronic Devices & Storage Corporation List for Product name, Output type, Top marking Block diagram TCTH0x1AE TCTH0x2AE PTCGOOD Ref GND1 PTCO GND2 Pull down VDD PTCGOOD Ref GND Latch PTCO RESET Pull down VDD TCTH0x1BE TCTH0x2BE PTCGOOD Ref GND1 PTCO GND2 Pull down VDD PTCGOOD Ref GND Latch VDD PTCO RESET Pull down Product name PTCO output current FLAG signal latch function Output type Top Marking TCTH011AE 1 μA (Typ.) － Push-pull PC1 TCTH012AE 1 μA (Typ.) ✓ included Push-pull PC2 TCTH021AE 10 μA (Typ.) － Push-pull PC3 TCTH022AE 10 μA (Typ.) ✓ included Push-pull PC4 TCTH011BE 1 μA (Typ.) － Open-drain PC5 TCTH012BE 1 μA (Typ.) ✓ included Open-drain PC6 TCTH021BE 10 μA (Typ.) － Open-drain PC7 TCTH022BE 10 μA (Typ.) ✓ included Open-drain PC8

Rev. 2.0 5 © 2023 Toshiba Electronic Devices & Storage Corporation Pin Description Pin name Description VDD Power supply pin. GND Ground level pin. RESET Reset pin release Latching function for FLAG signal. PTCO Constant-current output pin. Single or several pcs of PTC thermistor(s) for temperature detecting is(are) to be connected in series between PTCO and GND. Do not apply a voltage exceeding 1 V from outside. If a high voltage is applied from the outside for a long time , the Detect Voltag e (V DET) characteristics may be changed. PTCGOOD FLAG signal output pin. Operation list 8-1. TCTH0x1AE (without RESET) VDD VPTCO PTCGOOD VDD < VUVLO X Indefinite VDD ≥ VUVLO VPTCO < VDET H VDD ≥ VUVLO VPTCO ≥ VDET L X : Don’t care, 8-2. TCTH0x1BE (without RESET) VDD VPTCO PTCGOOD VDD < VUVLO X Indefinite VDD ≥ VUVLO VPTCO < VDET Hi-Z VDD ≥ VUVLO VPTCO ≥ VDET L X : Don’t care, Hi-Z : High-impedance 8-3. TCTH0x2AE (RESET included) VDD RESET VPTCO PTCGOOD VDD < VUVLO X X Indefinite VDD ≥ VUVLO H X H VDD ≥ VUVLO L VPTCO < VDET H VDD ≥ VUVLO L VPTCO ≥ VDET L (Latch) X : Don’t care, 8-4. TCTH0x2BE (RESET included) VDD RESET VPTCO PTCGOOD VDD < VUVLO X X Indefinite VDD ≥ VUVLO H X Hi-Z VDD ≥ VUVLO L VPTCO < VDET Hi-Z VDD ≥ VUVLO L VPTCO ≥ VDET L (Latch) X : Don’t care, Hi-Z : High-impedance PTCGOOD latch will be released if the RESET inputs “H” or re-input using the VDD.

Rev. 2.0 6 © 2023 Toshiba Electronic Devices & Storage Corporation

Electrical characteristics

(Unless otherwise specified, VDD = 3.3 V) Characteristics symbol Test Condition Tj = 25 °C Tj = -40 to 125 °C (Note 5) Unit PTCO output current IPTCO Hysteresis Voltage VDETHYS TCTH0x1xE ― 0.1 ― ― ― V Response time tDET1 PTCO terminal voltage ：1 V to 10 mV ― 17 ― ― ― μs tDET2 PTCO terminal voltage ：1 V to 10 mV, TCTH0x1xE ― 214 ― ― ― μs Current Consumption IDD1U TCTH01xxE ― 1.8 2.4 ― 2.6 μA IDD10U TCTH02xxE ― 11.3 14.7 ― 16.5 μA UVLO voltage VUVLO ― 1.5 ― ― ― V Operation MASK time tope ― 20 ― ― ― μs Threshold of RESET pin High level VIHRESET 0.84 ― VDD 1.00 VDD V Pull-down current at RESET pin IRESET ― 0.04 ― ― ― μA PTCGOOD High level output voltage VOH TCTH0xxAE, IPTCGOOD = -4 mA 3.03 ― ― ― ― V PTCGOOD Low level output voltage VOL IPTCGOOD = 4 mA ― ― 0.2 ― ― V Note 5: These parameters are guaranteed by design. VDD PTCGOOD tope Indefinite VUVLO VPTCO PTCGOOD VDET VDETHYS tDET1 tDET2 tope, tDET1, tDET2 Waveforms

Rev. 2.0 7 © 2023 Toshiba Electronic Devices & Storage Corporation Application Note 10.1. Operation description (TCTH0x1AE, TCTH0x1BE) PTCO output c urrent and PTC Thermistor(s) resistance, externally placed near the heat source determines the voltage level on PTCO pin. When this terminal -voltage exceeds the specified voltage, immediately PTCGOOD pin outputs “Low”. When PTCO pin voltage become lower than the specified voltage, automatically returns and PTCGOOD pin outputs “High” (TCTH0x1AE), or “High-impedance” (TCTH0x1BE). Detecting temperature varies on selection of PTC thermistor(s). If the detection on higher temperature than this IC operation range is necessary, take care the PCB design ing and keep enough distance between PTC Thermistor(s) and this IC to avoid heat propagation to this IC. TCTH0x1AE PTCGOODVDD PTCOGND1 TCTH0x1AE GND2 PTC Thermistor PTC Thermistor PTC Thermistor TCTH0x1BE TCTH0x1xE Timing chart VDD

0 Times

L PTCGOOD Times H VUVLO MASK 20 μs(Typ.) tDET1 VUVLO tDET2 Voltage Voltage Temerature Detect Temp. (set by PTC thermistor select) VDETHYS MASK 20 μs(Typ.) Indefinite Indefinite Note 6: TCTH0x1BE is using Open-drain output. Therefore, PTCGOOD pin of TCTH0x1BE outputs High-impedance instead of “High”. (Note 6)

Rev. 2.0 8 © 2023 Toshiba Electronic Devices & Storage Corporation 10.2. Operation description (TCTH0x2AE, TCTH0x2BE) PTCO output current and PTC Thermistor(s) resistance, externally placed near the heat source determines the voltage level on PTCO pin. When this terminal -voltage exceeds the specified voltage, immediately PTCGOOD pin outputs “Low” and keep the output state. Input the “High” signal into RESET pin, to cancel this PTCGOOD latch signal. If “High” signal is input to RESET pin, this device is in reset state, PTCGOOD pin outputs “High” (TCTH0x2AE), or “High-impedance” (TCTH0x2BE). Detecting temperature varies on selection of PTC thermistor(s). If the detection on higher temperature than this IC operation range is necessary, take care the PCB designing and keep enough distance between PTC Thermistor(s) and this IC to avoid heat propagation to this IC. TCTH0x2AE PTCGOOD PTCOGND TCTH0x2AE RESET VDD PTC Thermistor PTC Thermistor PTC Thermistor TCTH0x2BE TCTH0x2xE Timing chart VDD L PTCGOOD Times H VUVLO MASK 20 μs(Typ.) tDET1 Voltage Voltage Temerature Detect Temp. (set by PTC thermistor select) L RESET Times H Voltage tDET1 MASK 20 μs(Typ.) VUVLO Indefinite Indefinite (Note 7) Note 7: TCTH0x2BE is using Open-drain output. Therefore, PTCGOOD pin of TCTH0x2BE outputs High-impedance instead of “High”.

Rev. 2.0 9 © 2023 Toshiba Electronic Devices & Storage Corporation 10.3. How to choose PTC thermistor The resistor value of PTC thermistor is increased when the temperature exceeds threshold. PTCO voltage (VPTCO) generates with PTC thermistor characteristics and PTCO output current. PTCGOOD outputs “Low” when PTC PTCO voltage is higher than the detect voltage (VDET). There are 2 types of products, have different PTCO output current. Select PTC thermistor matches each PTCO output current. Refer to the following. 10.3.1. Usage with single PTC thermistor Refer to the following to select a PTC thermistor for IC detecting when resistance of PTC thermistor becomes α times the one on normal conditions. VDET (Max.) IPTCO (Min.) × α < PTC thermistor resistance at normal operation < VDET (Min.) IPTCO (Max.) × β α: The rate of changing PTC thermistor resistance (α = resistance at over temperature operation resistance at normal operation ) β: VDET margin coefficient, Set with guideline as 10 ≤ β ≤ α/4 Note: Design for PTC thermistor resistance variation and margins. Ex.) Reference PTC thermistor resistance for single pc. Product name PTCO output current (Typ.) PTC thermistor resistance (25 °C) α = 50, β = 10 α = 100, β = 10 TCTH01xxE 1 μA 17.8 kΩ to 27 kΩ 9.1 kΩ to 27 kΩ TCTH02xxE 10 μA 1.78 kΩ to 2.7 kΩ 910 Ω to 2.7 kΩ 10.3.2. Using several (N pcs) PTC thermistors When using several PTC thermistors, select the thermistors with same resistance value at 25 °C. if using different thermistors in same system, the IC does not correctly detect the setting temperature as blow. Maximum number of PTC thermistors can be connected is around 30 pcs. Ex.) Refer next formula to select the PTC thermistors, to detect with this IC when the resistor value changed to α times when one of the PTC thermistors is overheated, using N pcs of PTC thermistors have same resistor value at 25 °C. VDET (Max.) IPTCO (Min.) × (α + N - 1) < PTC thermistor resistance at normal operation < VDET (Min.) IPTCO (Max.) × β × N N: PTC thermistor quantity α: The rate of changing PTC thermistor resistance (α = resistance at over temperature operation resistance at normal operation ) Set α to be at least (4 + N/2) × β or more, as guideline. β: VDET margin coefficient, set β to be N + 10 as guideline. Note: Design for PTC thermistor resistance variation and margins. If in a condition that multiple PTC thermistors are to be overheated at the same time, the combined resistance after overheating should be considered to set the system , to avoid false positive of the IC on the temperature below detecting temperature. Ex.) Reference PTC thermistor resistance using several (N) pcs. Product name PTCO output current (Typ.) PTC thermistor resistance (25 °C) N = 10, α = 180, β = 20 N = 10, α = 300, β = 20 (when α is increased) TCTH01xxE 1 μA 4.7 kΩ to 9.4 kΩ 2.8 kΩ to 9.4 kΩ TCTH02xxE 10 μA 470 Ω to 940 Ω 280 Ω to 940 Ω

Rev. 2.0 10 © 2023 Toshiba Electronic Devices & Storage Corporation 10.4. Power Dissipation Both unit and board mounted power dissipation ratings for TCTH0 series are available in the Absolute Maximum Ratings table. Power dissipation is measured on the board shown below. [The Board Condition] FR4 board dimension: 30 mm × 30 mm × 0.8 mm 100 200 300 400 -40 0 40 80 120 160 Power dissipation PD (mW) Ambient temperature Ta (ºC) ① Mounted on FR4 board ② Unit rating ①

Rev. 2.0 11 © 2023 Toshiba Electronic Devices & Storage Corporation Representative Typical Characteristics Unless otherwise specified, VDD = 3.3 V, VPTCO = 0.61 V, Tj = 25 °C PTCO output current IPTCO TCTH01xxE PTCO output current IPTCO TCTH02xxE Current Consumption IDD1U TCTH01xxE Current Consumption IDD10U TCTH02xxE Detect Voltage VDET 0.6 0.7 0.8 0.9 1.0 1.1 1.2 1.3 1.4 PTCO output current IPTCO (μA) Power supply voltage VDD (V) -40 ºC 25 ºC 85 ºC 125 ºC 6 PTCO output current IPTCO (μA) Power supply voltage VDD (V) -40 ºC 25 ºC 85 ºC 125 ºC 1.0 1.5 2.0 2.5 3.0 Current Consumption IDD1U (μA) Power supply voltage VDD (V) -40 ºC 25 ºC 85 ºC 125 ºC Power supply voltage VDD (V) -40 ºC 25 ºC 85 ºC 125 ºC 0.0 0.2 0.4 0.6 0.8 1.0 -40 -20 0 20 40 60 80 100120140 Detect Voltage VDET (V) Temperature Tj (ºC) Tj Tj Tj Tj Current Consumption IDD10U (μA)

Rev. 2.0 12 © 2023 Toshiba Electronic Devices & Storage Corporation TCTH0x1xE Operation VDD = 3.3 V, VPTCO = 0 V to 0.61 V TCTH0x2xE Operation VDD = 3.3 V, VPTCO = 0 V to 0.61 V, VRESET = 0 V to 1 V Note: The above characteristics curves are presented for reference only and not guaranteed by production test, unless otherwise noted.

Rev. 2.0 13 © 2023 Toshiba Electronic Devices & Storage Corporation Package Dimension ESV(SOT-553) Unit: mm Weight: 2.98 mg (Typ.)

Rev. 2.0 14 © 2023 Toshiba Electronic Devices & Storage Corporation RESTRICTIONS ON PRODUCT USE Toshiba Corporation and its subsidiaries and affiliates are collectively referred to as “TOSHIBA”. Hardware, software and systems described in this document are collectively referred to as “Product”.

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