S-19680 Series www.sii-ic.com FOR AUTOMOTIVE 105°C OPERATION CURRENT MONITOR HIGH SIDE SWITCH Rev.1.0_00 © SII Semiconductor Corporation, 2016 The S-19680 Series, developed by using CMOS technology, is a high side switch with the current monitor function. When the Pch output transistor is turned on, voltage is supplied to the load connected to the OUT pin. Monitoring the current which flows from the VIN pin to the OUT pin by using two external resistors, the S-19680 Series limits the current so that it does not exceed the set value. Depending on the monitored current value, the S-19680 Series detects the short-circuit status or the open status of the load connected to the OUT pin, and outputs an alarm signal. In addition, the S-19680 Series has the ON / OFF circuit to control the Pch output transistor's status, ON and OFF, and the thermal shutdown circuit to limit overheating. The hysteresis type or latch type can be selected for the thermal shutdown circuit. Caution This product can be used in vehicle equipment and in-vehicle equipment. Before using the product in the purpose, contact to SII Semiconductor Corporation is indispensable. Features • Power supply voltage: • Current consumption during operation: • ON resistance: • Limit current: • Load short-circuit detection current: • Load open detection current: • Built-in thermal shutdown circuit: • Built-in ON / OFF circuit: • Operation temperature range: • Lead-free (Sn 100%), halogen-free *1 • AEC-Q100 in process *1. VDD = 2.7 V to 10.0 V ISS1 = 12 μA typ., ISS1 = 24 μA max. (Tj = −40°C to +105°C) RON = 1.1 Ω typ., RON = 3.7 Ω max. (Tj = −40°C to +105°C) 40 mA to 100 mA, selectable in 10 mA step ILIM × 0.3 to ILIM × 1.0 (ISHORT ≥ 30 mA), selectable in 0.1 step 2.5 mA to 30 mA, selectable in 2.5 mA step Detection temperature 165°C typ. Selectable in hysteresis type or latch type Ensures long battery life. Ta = −40°C to +105°C Contact our sales office for details. Applications • Remote LNA phantom power such as GPS antenna • ADAS locator • e-call • Car navigation system • Car audio system Package • TMSOP-8 1 FOR AUTOMOTIVE 105°C OPERATION CURRENT MONITOR HIGH SIDE SWITCH S-19680 Series Rev.1.0_00 Block Diagram *1 VDD *2 VIN OUT SENSE − *2 + Thermal shutdown circuit Current sense amplifier Current limit circuit _____ SC ON / OFF ON / OFF I/V conversion Load short-circuit circuit detection circuit _____ *3 circuit OL Load open detection circuit VSS *1. The VDD pin supplies power to the internal circuit. *2. Parasitic diode *3. The ON / OFF circuit controls the internal circuit, the Pch output transistor and the Nch output transistor. Figure 1 2 FOR AUTOMOTIVE 105°C OPERATION CURRENT MONITOR HIGH SIDE SWITCH S-19680 Series Rev.1.0_00 AEC-Q100 in Process Contact our sales office for details of AEC-Q100 reliability specification. Product Name Structure Users can select the product type and current setting value (limit current, load short-circuit detection current, load open detection current) for the S-19680 Series. Refer to "1. Product name" regarding the contents of product name, "2. Function list of product types" regarding the product types, "3. Package" regarding the package drawings and "4. Product name list" for details of product names. 1. Product name S-19680 x xx H - K8T2 U Environmental code U: Lead free (Sn 100%), halogen free Package abbreviation and IC packing specifications*1 K8T2: TMSOP-8, Tape Operation temperature H: Ta = −40°C to +105°C Current setting value*2 Sequentially set from AA to ZZ Product type*3 A, B *1. *2. *3. 2. Refer to the tape drawing. Refer to "4. Product name list". Refer to "2. Function list of product types". Function list of product types Table 1 Product Type A B 3. ON / OFF Logic Active "H" Active "H" Thermal Shutdown Circuit Hysteresis type Latch type Package Table 2 Package Name TMSOP-8 Package Drawing Codes Dimension FM008-A-P-SD Tape FM008-A-C-SD Reel FM008-A-R-SD 3 FOR AUTOMOTIVE 105°C OPERATION CURRENT MONITOR HIGH SIDE SWITCH S-19680 Series 4. Rev.1.0_00 Product name list 4. 1 S-19680 Series A type Table 3 Load Open Detection Current Load Short-circuit Detection Product Name Limit Current (ILIM) (IOPEN) Current (ISHORT) S-19680AAAH-K8T2U 40 mA 40 mA 2.5 mA S-19680AABH-K8T2U 100 mA 50 mA 10 mA Remark Please contact our sales office for products with specifications other than the above. 4. 2 S-19680 Series B type Table 4 Load Open Detection Current Load Short-circuit Detection Product Name Limit Current (ILIM) (IOPEN) Current (ISHORT) S-19680BAAH-K8T2U 50 mA 40 mA 5.0 mA S-19680BABH-K8T2U 50 mA 35 mA 7.5 mA S-19680BACH-K8T2U 100 mA 50 mA 10 mA S-19680BADH-K8T2U 100 mA 50 mA 5.0 mA S-19680BAEH-K8T2U 60 mA 54 mA 15 mA S-19680BAFH-K8T2U 70 mA 70 mA 5.0 mA Remark Please contact our sales office for products with specifications other than the above. 4 FOR AUTOMOTIVE 105°C OPERATION CURRENT MONITOR HIGH SIDE SWITCH S-19680 Series Rev.1.0_00 Pin Configuration 1. TMSOP-8 Table 5 Top view 1 2 3 4 8 7 6 5 Figure 2 Pin No. 1 2 3 4 5 Symbol VIN SENSE VDD ON / OFF _____ OL _____ 6 SC 7 8 VSS OUT Description Voltage input pin Current sense input pin IC power supply pin ON / OFF pin Load open detection signal output pin Load short-circuit detection signal output pin GND pin Voltage output pin 5 FOR AUTOMOTIVE 105°C OPERATION CURRENT MONITOR HIGH SIDE SWITCH S-19680 Series Rev.1.0_00 Absolute Maximum Ratings Table 6 (Ta = +25°C unless otherwise specified) Item Symbol Absolute Maximum Rating Unit VDD VSS − 0.3 to VSS + 12 V VIN VSS − 0.3 to VDD + 0.3 ≤ VSS + 12 V VSENSE VSS − 0.3 to VDD + 0.3 ≤ VSS + 12 V Input voltage VON / OFF VSS − 0.3 to VDD + 0.3 ≤ VSS + 12 V VIN − VSENSE −3.0 to +3.0 V VSS − 0.3 to VIN + 0.3 ≤ VSS + 12 VOUT V VOL VSS − 0.3 to VSS + 12 V Output voltage VS C VSS − 0.3 to VSS + 12 V IOUT 120 mA IOL 6 mA Output current IS C 6 mA Tj −40 to +150 Junction temperature °C −40 to +105 Topr °C Operation ambient temperature −40 to +150 Tstg °C Storage temperature 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. ____ _____ ____ _____ Thermal Resistance Value Table 7 Condition Board 1 Junction-to-ambient thermal resistance*1 θja TMSOP-8 Board 2 *1. Test environment: compliance with JEDEC STANDARD JESD51-2A Item Symbol Min. − − Typ. 160 133 Remark Refer to " Thermal Characteristics" for details of power dissipation and test board. 6 Max. − − Unit °C/W °C/W Rev.1.0_00 FOR AUTOMOTIVE 105°C OPERATION CURRENT MONITOR HIGH SIDE SWITCH S-19680 Series Electrical Characteristics Table 8 Power supply voltage Current consumption during operation Current consumption during power-off VDD (VDD = 5.0 V, Tj = −40°C to +105°C unless otherwise specified) Test Condition Min. Typ. Max. Unit circuit −40°C ≤ Tj ≤ +150°C 2.7 − 10.0 V − ISS1 VON / OFF = VDD, IOUT = 0 mA − 12 24 μA 1 ISS2 VON / OFF = 0 V, IOUT = 0 mA − − 1.0 μA 1 ON resistance*1 RON − 1.1 3.7 Ω 2 Leakage current ILEAK − 3 mA 4 ILIM 1.0 ILIM(S) × 1.2 ILIM(S) + 10 μA Limit current*2, *5 − ILIM(S) × 0.8 ILIM(S) − 10 mA 4 mA 5 mA 5 mA 5 mA 5 V μA V μA 6 7 6 7 V 8 V 8 μA 8 μA 8 °C − °C − Item Symbol VIN = VDD − 0.51 V VON / OFF = VDD, IOUT = 100 mA VON / OFF = 0 V, VOUT = 0 V RSHUNT = 5.1 Ω RSENSE = 5.1 kΩ VOUT ˂ VDD × 0.8 Load short-circuit detection ISHORT current*3, *5 RSHUNT = 5.1 Ω RSENSE = 5.1 kΩ Load open detection current*4, *5 RSHUNT = 5.1 Ω RSENSE = 5.1 kΩ _____ IOPEN _____ _____ 50 mA ≤ ILIM(S) ≤ 100 mA 40 mA ≤ ILIM(S) ˂ 50 mA 50 mA ≤ ISHORT(S) ≤ 100 mA 30 mA ≤ ISHORT(S) ˂ 50 mA 10 mA ˂ IOPEN(S) ≤ 30 mA 2.5 mA ≤ IOPEN(S) ≤ 10 mA ISHORT(S) × 0.8 ISHORT(S) − 10 IOPEN(S) − 10 IOPEN(S) × 0.3 − − − − ILIM(S) ILIM(S) ISHORT(S) ISHORT(S) IOPEN(S) IOPEN(S) ISHORT(S) × 1.2 ISHORT(S) + 10 IOPEN(S) + 10 IOPEN(S) × 1.7 0.4 1 0.4 1 VS C I S C = 1 mA SC pin output voltage − I S C _LEAK V S C = 10 V SC pin leakage current − _____ V I O L pin output voltage OL OL = 1 mA − _____ IOL_LEAK VOL = 10 V O L pin leakage current − ON / OFF pin input voltage − 2.1 − − VSH "H" ON / OFF pin input voltage − − − 0.6 VSL "L" ON / OFF pin input current VON / OFF = VDD −0.1 − 0.1 ISH "H" ON / OFF pin input current VON / OFF = 0 V −0.1 − 0.1 ISL "L" Thermal shutdown Junction temperature − 165 − TSD detection temperature Thermal shutdown release Junction temperature − 135 − TSR temperature (VIN − VOUT) *1. RON = IOUT *2. ILIM: Actual limit current ILIM(S): Set limit current Attention should be paid to the power dissipation when the output current is large. *3. ISHORT: Actual load short-circuit detection current ISHORT(S): Set load short-circuit detection current *4. IOPEN: Actual load open detection current IOPEN(S): Set load open detection current *5. Only the variation of the IC is considered. The variation of the external shunt resistor (RSHUNT) and resistor (RSENSE) are not included. _____ _____ ____ ____ _____ ____ ____ the sense 7 FOR AUTOMOTIVE 105°C OPERATION CURRENT MONITOR HIGH SIDE SWITCH S-19680 Series Rev.1.0_00 Test Circuits + RSHUNT A RSENSE VDD OUT VIN SENSE _____ SC VDD _____ OL ON / OFF VSS Set to VDD or GND Figure 3 Test Circuit 1 OUT VIN RSENSE VIN + SENSE V _____ SC VDD _____ ON / OFF VDD OL VSS Set to ON Figure 4 Test Circuit 2 OUT VIN RSENSE VDD + A SENSE VOUT _____ SC VDD ON / OFF _____ OL VSS Set to GND Figure 5 RSHUNT RSENSE VDD Test Circuit 3 OUT VIN SENSE SC ON / OFF _____ OL VSS Set to ON Figure 6 8 A VOUT _____ VDD + Test Circuit 4 FOR AUTOMOTIVE 105°C OPERATION CURRENT MONITOR HIGH SIDE SWITCH S-19680 Series Rev.1.0_00 RSHUNT RSENSE VDD _____ SC ON / OFF OL VDD Test Circuit 5 SENSE SC OL V Set to ON Figure 8 ____ IOL _____ VSS VDD _____ IS C _____ ON / OFF RSENSE + OUT VIN VDD RSHUNT V V Set to ON Figure 7 + _____ VSS RSENSE A SENSE VDD RSHUNT + OUT VIN + V + Test Circuit 6 OUT VIN SENSE _____ SC VDD ON / OFF _____ OL A A + + _____ VS C VSS ____ VOL Set to ON Figure 9 RSHUNT RSENSE VDD OUT VIN + V SENSE _____ SC VDD + A Test Circuit 7 ON / OFF _____ OL VSS Figure 10 Test Circuit 8 9 FOR AUTOMOTIVE 105°C OPERATION CURRENT MONITOR HIGH SIDE SWITCH S-19680 Series Rev.1.0_00 Standard Circuit RSHUNT *3 C IN OUT VIN Input *1 RSENSE Output *4 R SENSE *5 R *5 CL *2 _____ SC VDD _____ ON / OFF OL Load short-circuit detection signal output Load open detection signal output VSS Single GND GND *1. CIN is a capacitor for stabilizing the input. *2. CL is a capacitor for stabilizing the output. *3. RSHUNT is a shunt resistor for current monitor. *4. RSENSE is a sense resistor for current monitor. _____ _____ *5. R is the external pull-up resistor for the SC pin or the O L pin. Figure 11 Caution The above connection diagram and constants will not guarantee successful operation. Perform thorough evaluation using the actual application to set the constants. Condition of Application Input capacitor (CIN): Output capacitor (CL): Shunt resistor (RSHUNT): Sense resistor (RSENSE): External pull-up resistor (R): A ceramic capacitor with 0.1 μF or more is recommended. A ceramic capacitor with 0.1 μF or more is recommended. 5.1 Ω 5.1 kΩ A resistor with 100 kΩ is recommended. Selection of Input Capacitor (CIN) and Output Capacitor (CL) In the S-19680 Series, it is recommended to connect CIN between the VDD pin and the VSS pin for stable operation. In addition, in order to supply stable power to the load connected to the OUT pin, it is recommended to connect CL between the OUT pin and the VSS pin. The recommended capacitance for both CIN and CL is 0.1 μF or more. Caution Perform thorough evaluation including the temperature characteristics with an actual application to select CIN and CL. Selection of Shunt Resistor (RSHUNT) and Sense Resistor (RSENSE) In the S-19680 Series, RSHUNT and RSENSE are required for the current monitor function. A resistor with 5.1 Ω can be used for RSHUNT and 5.1 kΩ for RSENSE. Select RSHUNT and RSENSE carefully since the accuracy of the limit current (ILIM), the load short-circuit detection current (ISHORT) and the load open detection current (IOPEN) are affected by RSHUNT and RSENSE characteristics. In addition, a load current flows in RSHUNT, so the heat generation must also be considered. 10 FOR AUTOMOTIVE 105°C OPERATION CURRENT MONITOR HIGH SIDE SWITCH S-19680 Series Rev.1.0_00 Operation 1. Basic operation Figure 12 shows the block diagram of the S-19680 Series to describe the basic operation. Connect an external power supply to the VDD pin and a load to the OUT pin. Also, connect the external shunt resistor (RSHUNT) between the VDD pin and the VIN pin and the external sense resistor (RSENSE) between the VDD pin and the SENSE pin. Due to the IC internal control signal, the Pch output transistor is turned on or off, and the switch operation is performed between the VIN pin and the OUT pin. When the Pch output transistor is turned on, the VIN pin and the OUT pin are connected. Since the output current which flows from the OUT pin to the load (IOUT) is supplied from VDD via RSHUNT and the Pch output transistor, the current which flows in RSHUNT (ISHUNT) will be ISHUNT = IOUT. Since a voltage drop (VSHUNT) occurs by flowing ISHUNT in RSHUNT and the Pch output transistor with ON resistance (RON), the voltage supplied to the load (VOUT) is calculated by using formula (1). (1) VOUT = VDD − ISHUNT × (RSHUNT + RON) ISHUNT *1 RSHUNT OUT VIN VDD CIN CL RL RSENSE SENSE Control signal VDD *1. Parasitic diode Figure 12 2. Current monitor operation Figure 13 shows the block diagram of the current monitor operation in the S-19680 Series. By using RSHUNT and RSENSE, the S-19680 Series monitors the current which flows from the VIN pin to the OUT pin. A resistor with 5.1 Ω can be used for RSHUNT and 5.1 kΩ for RSENSE. The current depending on the load (ISHUNT) flows in RSHUNT. The current sense amplifier operates so that the SENSE pin voltage becomes the same voltage as the VIN pin voltage. VSHUNT generated in RSHUNT is calculated by using formula (2). (2) VSHUNT = ISHUNT × RSHUNT Similarly, the same voltage as VSHUNT is generated in RSENSE, so the current which flows in RSENSE (ISENSE) is calculated by using formula (3). (3) RSHUNT ISENSE = ISHUNT × R SENSE The current limit circuit, the load short-circuit detection circuit and the load open detection circuit monitors ISHUNT depending on ISENSE value. 2. 1 Current limit circuit By the current limit circuit, the S-19680 Series limits the current so that ISHUNT does not exceed the set value. The current limit circuit monitors ISHUNT depending on ISENSE value. When ISHUNT reaches the limit current (ILIM), the circuit controls the Pch output transistor and limits the current so that ISHUNT does not exceed ILIM. Caution Be aware that ISHUNT which is larger than ILIM flows during the period from when ISHUNT reaches ILIM to when the current limit circuit responds. 11 FOR AUTOMOTIVE 105°C OPERATION CURRENT MONITOR HIGH SIDE SWITCH S-19680 Series 2. 2 Rev.1.0_00 Load short-circuit detection circuit By the load short-circuit detection circuit, the S-19680 Series detects the _____ short-circuit status of the load connected to the OUT pin, and outputs an alarm signal. The output form of the SC pin which outputs the alarm signal is Nch open-drain output, the output logic is active "L". The load short-circuit detection circuit monitors ISHUNT depending on ISENSE value. When the condition of ISHUNT ≥ load short-circuit detection current (ISHORT) is satisfied, the status changes to the load short-circuit detection status and the Nch output transistor is turned on. When the condition of ISHUNT ˂ ISHORT is satisfied, the status changes to the load short-circuit release status and the Nch output transistor is turned off. Caution 1. As a result of the power supply startup and the power supply fluctuation, an inrush current may flow from the VIN pin to the OUT pin. Even in the load short-circuit release status, when the condition of ISHUNT ≥ ISHORT is satisfied temporarily due to the inrush current, the status changes to the load short-circuit detection status. Therefore, caution should be exercised. 2. As a result of the power supply fluctuation, the VIN pin voltage may drop lower than the OUT pin voltage. At this time, no current flows from the VIN pin to the OUT pin. For this reason, even in the load short-circuit detection status, the condition of ISHUNT ˂ ISHORT is satisfied temporarily and the status changes to the load short-circuit release status. Therefore, caution should be exercised. 2. 3 Load open detection circuit By the load open detection circuit, the S-19680 Series detects _____ the open status of the load connected to the OUT pin, and outputs an alarm signal. The output form of the O L pin which outputs the alarm signal is Nch open-drain output, the output logic is active "L". The load open detection circuit monitors I SHUNT depending on I SENSE value. When the condition of ISHUNT ≤ load open detection current (IOPEN) is satisfied, the status changes to the load open detection status and the Nch output transistor is turned on. When the condition of ISHUNT > IOPEN is satisfied, the status changes to the load open release status and the Nch output transistor is turned off. Caution 1. As a result of the power supply startup and the power supply fluctuation, an inrush current may flow from the VIN pin to the OUT pin. Even in the load open detection status, when the condition of ISHUNT > IOPEN is satisfied temporarily due to the inrush current, the status changes to the load open release status. Therefore, caution should be exercised. 2. As a result of the power supply fluctuation, the VIN pin voltage may drop lower than the OUT pin voltage. At this time, no current flows from the VIN pin to the OUT pin. For this reason, even in the load open release status, the condition of ISHUNT ≤ IOPEN is satisfied temporarily and the status changes to the load open detection status. Therefore, caution should be exercised. ISHUNT VDD CIN *1 OUT VIN RSHUNT CL VSHUNT RSENSE SENSE − VDD + Current *1 ISENSE Current limit circuit sense amplifier I/V conversion circuit _____ SC Load short-circuit detection circuit _____ OL Load open detection circuit *1. Parasitic diode Figure 13 12 RL FOR AUTOMOTIVE 105°C OPERATION CURRENT MONITOR HIGH SIDE SWITCH S-19680 Series Rev.1.0_00 2. 4 Truth-value table of load status _____ _____ According to the SC pin output and the O L pin output, the S-19680 Series can confirm the status of_____ the load _____ connected to the OUT pin. Refer to Table 9 for details. Since the output form of the SC pin or the O L pin is Nch open-drain output, "H" is output by the external pull-up resistor. _____ SC Pin Output "L" "H" "H" 2. 5 _____ Table 9 O L Pin Output "H" "L" "H" Load Status Load short-circuit status Load open status Load normal status Effects caused from shunt resistor (RSHUNT) and sense resistor (RSENSE) characteristics RSHUNT and RSENSE variations and temperature characteristics affect the accuracy of ILIM, ISHORT and IOPEN. The values shown in " Electrical Characteristics" are only considered the variation of the IC. In practice, RSHUNT and RSENSE variations also need to be considered, so caution should be exercised. The following example is for ILIM. The same results are obtained similarly in both ISHORT and IOPEN. When RSHUNT and RSENSE variations are considered, ILIM maximum value can be expressed by using formula (1), and the minimum value by using formula (2). (1) (RSENSEmax / RSENSE) ILIMmax' = ILIMmax × (R SHUNTmin / RSHUNT) (2) (RSENSEmin / RSENSE) ILIMmin' = ILIMmin × (R SHUNTmax / RSHUNT) In case of RSHUNT = 5.1 Ω ± 1% and RSENSE = 5.1 kΩ ± 1%, ILIM values are calculated by using formula (3) and formula (4), and the values have approximately ± 2% variation compared to the values shown in " Electrical Characteristics". (3) ILIMmax' = (4) ILIMmin' = ILIMmax × 1.01 = ILIMmax × 1.02 0.99 ILIMmin × 0.99 = ILIMmin × 0.98 1.01 Remark RSHUNTmax, RSHUNTmin: RSHUNT variation maximum value and minimum value RSENSEmax, RSENSEmin: RSENSE variation maximum value and minimum value ILIMmax, ILIMmin: ILIM maximum value and minimum value which are considered only the IC variation. ILIMmax', ILIMmin': ILIM maximum value and minimum value which are considered variations of RSHUNT and RSENSE. 13 FOR AUTOMOTIVE 105°C OPERATION CURRENT MONITOR HIGH SIDE SWITCH S-19680 Series 3. Rev.1.0_00 ON / OFF pin This pin starts and stops the switch operation and the current monitor operation. When the ON / OFF pin is set to _____ OFF, the_____ internal circuit stops operating and the Pch output transistor and the Nch output transistor (the SC pin and the O L pin) are turned off, reducing current consumption significantly. The internal equivalent circuit related to the ON / OFF pin is configured as shown in Figure 14, the ON / OFF pin is neither pulled down nor pulled up. For this reason, do not use it in the floating status. When not using the ON / OFF pin, connect it to the VDD pin. The current consumption increases when a voltage of 0.6 V to VDD − 0.3 V is applied to the ON / OFF pin, so caution should be exercised. Table 10 Product ON / OFF Type Pin A/B Internal Circuit "H": ON Operate "L": OFF Stop OUT Pin Voltage _____ SC Pin Voltage*3 _____ O L Pin Voltage*3 Current Consumption Power Supply "H": Load normal status "H": Load normal status ISS1 Voltage*1 "L": Load short-circuit status "L": Load open status VSS*2 "H" "H" ISS2 *1. Power supply voltage is output by turning the Pch output transistor on. A voltage drop occurs by flowing ISHUNT in RSHUNT and the Pch output transistor with ON resistance (RON). *2. The OUT pin is neither pulled up nor pulled down internally. The OUT pin voltage changes to VSS level by the load connected to the OUT pin. _____ _____ *3. Since the output form of the SC pin or the O L pin is Nch open-drain output, it changes to "H" by an external pull-up resistor. VDD ON / OFF VSS Figure 14 4. Low power supply voltage detection circuit The S-19680 Series has a built-in low power supply voltage detection circuit. When power supply voltage drops lower than the detection voltage,_____ the internal circuit stops operating and the Pch output transistor and Nch output _____ transistor (the SC pin and the O L pin) are turned off. In the latch type thermal shutdown circuit, the detection status latch is released. When power supply voltage rises higher than the release voltage, the internal circuit starts operating. The detection voltage is 2.15 V typ. and the release voltage is 2.2 V typ. Even if the power supply voltage is higher than the release voltage immediately after power supply startup, the _____ _____ Pch output transistor and Nch output transistor (the SC pin and the O L pin) are turned off until the internal IC operates stably. Power supply voltage Release voltage 2.2 V typ. Detection voltage 2.15 V typ. Internal circuit stops operating Pch output transistor and Nch transistor turn off Figure 15 14 FOR AUTOMOTIVE 105°C OPERATION CURRENT MONITOR HIGH SIDE SWITCH S-19680 Series Rev.1.0_00 5. Thermal shutdown circuit The S-19680 Series has a built-in thermal shutdown circuit to limit overheating. The hysteresis type or latch type can be selected for the thermal shutdown circuit. 5. 1 Hysteresis type When the junction temperature increases to 165°C typ., the thermal shutdown circuit becomes the detection status, and the Pch output transistor is turned off. When the junction temperature decreases to 135°C typ., the thermal shutdown circuit becomes the release status, and the Pch output transistor is turned on again. If the thermal shutdown circuit becomes the detection status due to self-heating, the Pch output transistor is turned off and VOUT decreases. For this reason, the self-heating is limited and the temperature of the IC decreases. The thermal shutdown circuit becomes the release status when the temperature of the IC decreases, and the Pch output transistor is turned on, generating the self-heating again. Repeating this procedure makes the waveform of VOUT into a pulse-like form. This phenomenon continues unless decreasing either or both of the VDD or IOUT in order to reduce the internal power consumption, or decreasing the ambient temperature. Note that the product may suffer physical damage such as deterioration if the above phenomenon occurs continuously. 5. 2 Latch type When the junction temperature increases to 165°C typ., the thermal shutdown circuit becomes the detection status, and the Pch output transistor is turned off. Even if the junction temperature would decrease to 135°C typ., the thermal shutdown circuit detection status is latched and the Pch output transistor remains in the status, OFF. The thermal shutdown circuit detection status latch is released by using the ON / OFF pin to set the IC power-off status or lowering the power supply voltage to change the low power supply voltage detection circuit to the detection status. Set the power supply voltage 0.5 V or lower in order to change the low power supply voltage detection circuit to the detection status. Caution 1. When a steep fluctuation of the power supply occurs, the thermal shutdown circuit may become the detection status even if the junction temperature would not reach 165°C typ., so pay enough attention to the power supply voltage to ensure stable status sufficiently. Perform thorough evaluation using the actual application. 2. If the OUT pin is steeply shorted with GND, a negative voltage exceeding the absolute maximum ratings may occur in the OUT pin due to resonance phenomenon of the inductance and the capacitance including CL on the application. When a negative voltage exceeding the absolute maximum rating occurs, the thermal shutdown circuit may become the detection status even if the junction temperature would not reach 165°C typ. If VOUT does not rise when the short-circuit is eliminated after the OUT pin is steeply shorted with the GND, release the detection status latch with the method shown in "5. 2 Latch type". 15 FOR AUTOMOTIVE 105°C OPERATION CURRENT MONITOR HIGH SIDE SWITCH S-19680 Series Rev.1.0_00 Precautions • The wiring patterns for the power supply and GND should be designed so that the impedance is low. When mounting the input capacitor (CIN) between the VDD pin and the VSS pin, and the output capacitor (CL) between the OUT pin and the VSS pin, connect them as close as possible to the respective destination pins of the IC. • The following use conditions are recommended to ensure stable operation of the S-19680 Series; however, perform thorough evaluation including the temperature characteristics with an actual application to select CIN and CL . Input capacitor (CIN) : A ceramic capacitor with 0.1 μF or more is recommended. Output capacitor (CL) : A ceramic capacitor with 0.1 μF or more is recommended. • Wiring patterns on the application related to the VDD pin, the VIN pin and the SENSE pin should be designed so that the impedance is low. When mounting the shunt resistor (RSHUNT) between the VDD pin and the VIN pin, and the sense resistor (RSENSE) between the VDD pin and SENSE pin, connect them as close as possible to the respective destination pins of the IC. If capacitance is added to the SENSE pin, the current sense amplifier may oscillate, so caution should be exercised. • For RSHUNT or RSENSE, use the resistor with the following resistance. The values shown in " Electrical Characteristics" are considered only the variation of the IC. In practice, RSHUNT and RSENSE variations also need to be considered, so caution should be exercised. Shunt resistor (RSHUNT) : Sense resistor (RSENSE) : 5.1 Ω 5.1 kΩ • When voltage of 3 V or higher is continuously applied between the VIN pin and SENSE pin, the current sense amplifier characteristics may change, so caution should be exercised. • If the OUT pin is steeply shorted with GND, a negative voltage exceeding the absolute maximum ratings may occur in the OUT pin due to resonance phenomenon of the inductance and the capacitance including CL on the application. The resonance phenomenon is expected to be weakened by inserting a series resistance into the resonance path, and the negative voltage is expected to be limited by inserting a protection diode between the OUT pin and the VSS pin. • Make sure of the conditions for the power supply voltage and the load current so that the internal loss does not exceed the 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 FOR AUTOMOTIVE 105°C OPERATION CURRENT MONITOR HIGH SIDE SWITCH S-19680 Series Rev.1.0_00 Characteristics (Typical Data) Current consumption during operation vs. Power supply voltage ISS1 [A] 1. 14 12 10 8 6 4 2 0 Ta = 105C Ta = 25C Ta = 40C 0 3. 4 6 VDD [V] 8 10 Current consumption during operation vs. Temperature ISS1 [μA] 2. 2 14 12 10 8 6 4 2 0 VDD = 5.0 V −40 −25 0 25 50 Ta [°C] 75 105 ON resistance vs. Power supply voltage IOUT = 100 mA 5.0 RON [] 4.0 3.0 Ta = +25C Ta = 40C 2.0 Ta = +105C 1.0 0.0 0 4 6 VDD [V] 8 10 ON resistance vs. Temperature VDD = 5.0 V, IOUT = 100 mA 5.0 4.0 RON [Ω] 4. 2 3.0 2.0 1.0 0.0 −40 −25 0 25 50 Ta [°C] 75 105 17 FOR AUTOMOTIVE 105°C OPERATION CURRENT MONITOR HIGH SIDE SWITCH S-19680 Series 5. Output voltage vs. Output current 5. 1 ILIM = 100 mA product 5. 2 ILIM = 40 mA product VDD = 5.0 V 6 4 Ta = 40C 3 Ta = 25C 2 4 VOUT [V] VOUT [V] 5 1 0 20 40 1 Ta = 105C 0 60 80 IOUT [mA] 100 120 0 110 6. 2 10 20 30 IOUT [mA] 50 40 Ta = +25C 100 90 Ta = +105C Ta = 40C ISHORT = 40 mA product 50 45 ISHORT [mA] ISHORT [mA] ISHORT = 100 mA product 120 Ta = +25C Ta = +105C 40 Ta = 40C 35 80 70 30 0 2 4 6 VDD [V] 8 10 0 2 4 6 VDD [V] 8 10 Load short-circuit detection current vs. Temperature 7. 1 ISHORT = 100 mA product 7. 2 110 100 45 40 90 80 VDD = 5.0 V 50 ISHORT [mA] ISHORT [mA] ISHORT = 40 mA product VDD = 5.0 V 120 35 −40 −25 0 25 50 Ta [°C] 75 30 105 −40 −25 0 25 50 Ta [°C] 75 105 Load open detection current vs. Power supply voltage IOPEN = 30 mA product 50 40 Ta = +25C 30 8. 2 IOPEN [mA] IOPEN [mA] 8. 1 Ta = 40C Ta = +105C 20 10 IOPEN = 2.5 mA product 4.0 3.0 Ta = +25C Ta = 40C Ta = +105C 2.0 1.0 0 18 Ta = 25C 2 Load short-circuit detection current vs. Power supply voltage 6. 1 8. Ta = 40C 3 Ta = 105C 0 7. VDD = 5.0 V 6 5 6. Rev.1.0_00 2 4 6 VDD [V] 8 10 0 2 4 6 VDD [V] 8 10 FOR AUTOMOTIVE 105°C OPERATION CURRENT MONITOR HIGH SIDE SWITCH S-19680 Series Rev.1.0_00 9. Load open detection current vs. Temperature 9. 1 IOPEN = 30 mA product 50 40 30 20 10 −40 −25 0 25 50 Ta [°C] 75 IOPEN = 2.5 mA product VDD = 5.0 V 4.0 IOPEN [mA] IOPEN [mA] 9. 2 VDD = 5.0 V 3.0 2.0 1.0 105 −40 −25 0 25 50 Ta [°C] 75 105 10. Power supply startup characteristics (ILIM = 100 mA, ISHORT = 40 mA, IOPEN = 2.5 mA product) 10. 1 Load normal status (IOPEN ˂ IOUT ˂ ISHORT) 10. 2 Load open status (IOUT ˂ IOPEN) VDD = 0 V → 5.0 V, CL = 0.1 μF, VDD = 0 V → 5.0 V, CL = 0.1 μF, IOUT = 20 mA, Ta = +25°C IOUT = 0.01 mA, Ta = +25°C VDD 5 V / div. GND VDD 5 V / div. GND VOUT 5 V / div. GND VOUT 5 V / div. GND "H" VSC "L" "H" VOL "L" 0.0 0.5 1.0 1.5 2.0 2.5 3.0 Time [ms] 10. 3 VSC VOL "H" "L" "H" "L" 0.0 0.5 1.0 1.5 2.0 2.5 3.0 Time [ms] Load short-circuit status (ISHORT ˂ IOUT ˂ ILIM) VDD = 0 V → 5.0 V, CL = 0.1 μF, IOUT = 60 mA, Ta = +25°C VDD 5 V / div. GND VOUT 5 V / div. GND VSC VOL "H" "L" "H" "L" 0.0 0.5 1.0 1.5 2.0 2.5 3.0 Time [ms] 19 FOR AUTOMOTIVE 105°C OPERATION CURRENT MONITOR HIGH SIDE SWITCH S-19680 Series 11. Power supply fluctuation characteristics (ILIM = 100 mA, ISHORT = 40 mA, IOPEN = 2.5 mA product) 11. 1 Load normal status (IOPEN ˂ IOUT ˂ ISHORT) VDD = 2.7 V ↔ 10.0 V (0.1 V/μs), CL = 0.1 μF, IOUT = 20 mA, Ta = +25°C Load open status (IOUT ˂ IOPEN) VDD = 2.7 V ↔ 10.0 V (0.1 V/μs), CL = 0.1 μF, IOUT = 0.01 mA, Ta= +25°C 5 V / div. GND VDD 5 V / div. GND VOUT 5 V / div. GND VOUT 5 V / div. GND VSC VOL 50 mA / div. GND "H" "L" "H" "L" 0.0 0.5 1.0 1.5 2.0 2.5 3.0 Time [ms] 11. 3 11. 2 VDD IOUT Load short-circuit status (ISHORT ˂ IOUT ˂ ILIM) VDD = 2.7 V ↔ 10.0 V (0.1 V/μs), CL = 0.1 μF, IOUT = 60 mA, Ta = +25°C VDD 5 V / div. GND VOUT 5 V / div. GND IOUT VSC VOL 50 mA / div. GND "H" "L" "H" "L" 0.0 0.5 1.0 1.5 2.0 2.5 3.0 Time [ms] 20 Rev.1.0_00 IOUT VSC VOL 50 mA / div. GND "H" "L" "H" "L" 0.0 0.5 1.0 1.5 2.0 2.5 3.0 Time [ms] FOR AUTOMOTIVE 105°C OPERATION CURRENT MONITOR HIGH SIDE SWITCH S-19680 Series Rev.1.0_00 12. Turning on (ILIM = 100 mA, ISHORT = 40 mA, IOPEN = 2.5 mA product) 12. 1 Load normal status (IOPEN ˂ IOUT ˂ ISHORT) 12. 2 VDD = 5.0 V, VON / OFF = 0 V → 5.0 V, CIN = 0.1 μF, CL = 0.1 μF, IOUT = 20 mA, Ta = +25°C Load open status (IOUT ˂ IOPEN) VDD = 5.0 V, VON / OFF = 0 V → 5.0 V, CIN = 0.1 μF, CL = 0.1 μF, IOUT = 0.01 mA, Ta = +25°C VON / OFF 5 V / div. GND VON / OFF 5 V / div. GND VOUT 5 V / div. GND VOUT 5 V / div. GND "H" VSC "L" "H" VOL "L" VSC VOL 0.0 0.5 1.0 1.5 2.0 2.5 3.0 Time [ms] 12. 3 "H" "L" "H" "L" 0.0 0.5 1.0 1.5 2.0 2.5 3.0 Time [ms] Load short-circuit status (ISHORT ˂ IOUT ˂ ILIM) VDD = 5.0 V, VON / OFF = 0 V → 5.0 V, CIN = 0.1 μF, CL = 0.1 μF, IOUT = 60 mA, Ta = +25°C VON / OFF 5 V / div. GND VOUT 5 V / div. GND "H" VSC "L" "H" VOL "L" 0.0 0.5 1.0 1.5 2.0 2.5 3.0 Time [ms] 13. Turning off (ILIM = 100 mA, ISHORT = 40 mA, IOPEN = 2.5 mA product) 13. 1 Load normal status (IOPEN ˂ IOUT ˂ ISHORT) VDD = 5.0 V, VON / OFF = 5.0 V → 0 V, CIN = 0.1 μF, CL = 0.1 μF, IOUT = 20 mA, Ta = +25°C VON / OFF 5 V / div. GND VOUT 5 V / div. GND VSC VOL "H" "L" "H" "L" 0.0 0.5 1.0 1.5 2.0 2.5 3.0 Time [ms] 21 FOR AUTOMOTIVE 105°C OPERATION CURRENT MONITOR HIGH SIDE SWITCH S-19680 Series 14. Rev.1.0_00 Current limit response characteristics 14. 1 ILIM = 100 mA product VDD = 5.0 V, CIN = 0.1 μF, CL = 0.1 μF, IOUT = 20 mA → 130 mA, Ta = +25°C VDD 5 V / div. GND IOUT 100 mA / div. GND 5 V / div. GND VOUT 0.0 0.5 1.0 1.5 2.0 2.5 3.0 Time [ms] 15. Load fluctuation characteristics 15. 1 IOPEN = 2.5 mA product VDD = 5.0 V, CIN = 0.1 μF, CL = 0.1 μF, IOUT = 0 mA ↔ 20 mA, Ta = +25°C ISHORT = 40 mA product VDD = 5.0 V, CIN = 0.1 μF, CL = 0.1 μF, IOUT = 20 mA ↔ 60 mA, Ta = +25°C VDD 5 V / div. GND VDD 5 V / div. GND IOUT 50 mA / div. GND IOUT 50 mA / div. GND VSC VOL "H" "L" "H" "L" 0.0 0.5 1.0 1.5 2.0 2.5 3.0 Time [ms] 22 15. 2 VSC VOL "H" "L" "H" "L" 0.0 0.5 1.0 1.5 2.0 2.5 3.0 Time [ms] FOR AUTOMOTIVE 105°C OPERATION CURRENT MONITOR HIGH SIDE SWITCH S-19680 Series Rev.1.0_00 Thermal Characteristics 1. TMSOP-8 Tj = +150°C max. 1.0 Board 2 0.94 W Power dissipation (PD) [W] 0.8 Board 1 0.78 W 0.6 0.4 0.2 0 Figure 16 0 50 100 150 Ambient temperature (Ta) [C] Power Dissipation of Package (When Mounted on Board) 1. 1 Board 1 Table 11 114.3 mm Item Thermal resistance value (θja) Size Material Number of copper foil layers 1 2 Copper foil layer 3 4 Thermal via 114.3 mm 76.2 mm Item Thermal resistance value (θja) Size Material Number of copper foil layers 1 2 Copper foil layer 3 4 Thermal via Specification 160°C/W 114.3 mm × 76.2 mm × t1.6 mm FR-4 2 Land pattern and wiring for testing: t0.070 mm − − 74.2 mm × 74.2 mm × t0.070 mm − Figure 17 1. 2 Board 2 Table 12 76.2 mm Specification 133°C/W 114.3 mm × 76.2 mm × t1.6 mm FR-4 4 Land pattern and wiring for testing: t0.070 mm 74.2 mm × 74.2 mm × t0.035 mm 74.2 mm × 74.2 mm × t0.035 mm 74.2 mm × 74.2 mm × t0.070 mm − Figure 18 23 2.90±0.2 8 5 1 4 0.13±0.1 0.2±0.1 0.65±0.1 No. FM008-A-P-SD-1.2 TITLE TMSOP8-A-PKG Dimensions No. FM008-A-P-SD-1.2 ANGLE UNIT mm SII Semiconductor Corporation 2.00±0.05 4.00±0.1 4.00±0.1 1.00±0.1 +0.1 1.5 -0 1.05±0.05 0.30±0.05 3.25±0.05 4 1 5 8 Feed direction No. FM008-A-C-SD-2.0 TITLE TMSOP8-A-Carrier Tape FM008-A-C-SD-2.0 No. ANGLE UNIT mm SII Semiconductor Corporation 16.5max. 13.0±0.3 Enlarged drawing in the central part 13±0.2 (60°) (60°) No. FM008-A-R-SD-1.0 TITLE TMSOP8-A-Reel No. FM008-A-R-SD-1.0 ANGLE UNIT QTY. 4,000 mm SII Semiconductor Corporation Disclaimers (Handling Precautions) 1. All the information described herein (product data, specifications, figures, tables, programs, algorithms and application circuit examples, etc.) is current as of publishing date of this document and is subject to change without notice. 2. The circuit examples and the usages described herein are for reference only, and do not guarantee the success of any specific mass-production design. SII Semiconductor Corporation is not responsible for damages caused by the reasons other than the products or infringement of third-party intellectual property rights and any other rights due to the use of the information described herein. 3. SII Semiconductor Corporation is not responsible for damages caused by the incorrect information described herein. 4. Take care to use the products described herein within their specified ranges. Pay special attention to the absolute maximum ratings, operation voltage range and electrical characteristics, etc. SII Semiconductor Corporation is not responsible for damages caused by failures and/or accidents, etc. that occur due to the use of products outside their specified ranges. 5. When using the products described herein, confirm their applications, and the laws and regulations of the region or country where they are used and verify suitability, safety and other factors for the intended use. 6. When exporting the products described herein, comply with the Foreign Exchange and Foreign Trade Act and all other export-related laws, and follow the required procedures. 7. The products described herein must not be used or provided (exported) for the purposes of the development of weapons of mass destruction or military use. SII Semiconductor Corporation is not responsible for any provision (export) to those whose purpose is to develop, manufacture, use or store nuclear, biological or chemical weapons, missiles, or other military use. 8. The products described herein are not designed to be used as part of any device or equipment that may affect the human body, human life, or assets (such as medical equipment, disaster prevention systems, security systems, combustion control systems, infrastructure control systems, vehicle equipment, traffic systems, in-vehicle equipment, aviation equipment, aerospace equipment, and nuclear-related equipment), excluding when specified for in-vehicle use or other uses. Do not use those products without the prior written permission of SII Semiconductor Corporation. Especially, the products described herein cannot be used for life support devices, devices implanted in the human body and devices that directly affect human life, etc. Prior consultation with our sales office is required when considering the above uses. SII Semiconductor Corporation is not responsible for damages caused by unauthorized or unspecified use of our products. 9. Semiconductor products may fail or malfunction with some probability. The user of these products should therefore take responsibility to give thorough consideration to safety design including redundancy, fire spread prevention measures, and malfunction prevention to prevent accidents causing injury or death, fires and social damage, etc. that may ensue from the products' failure or malfunction. The entire system must be sufficiently evaluated and applied on customer's own responsibility. 10. The products described herein are not designed to be radiation-proof. The necessary radiation measures should be taken in the product design by the customer depending on the intended use. 11. The products described herein do not affect human health under normal use. However, they contain chemical substances and heavy metals and should therefore not be put in the mouth. The fracture surfaces of wafers and chips may be sharp. Take care when handling these with the bare hands to prevent injuries, etc. 12. When disposing of the products described herein, comply with the laws and ordinances of the country or region where they are used. 13. The information described herein contains copyright information and know-how of SII Semiconductor Corporation. The information described herein does not convey any license under any intellectual property rights or any other rights belonging to SII Semiconductor Corporation or a third party. Reproduction or copying of the information described herein for the purpose of disclosing it to a third-party without the express permission of SII Semiconductor Corporation is strictly prohibited. 14. For more details on the information described herein, contact our sales office. 1.0-2016.01 www.sii-ic.com