TPD1028BS TOSHIBA Intelligent Power Device Silicon Monolithic Power MOS IC TPD1028BS Low-Side Switch for Motors, Solenoids, and Lamp Drivers TPD1028BS is a monolithic power IC for low-side switch. The IC has a vertical MOSFET output which can be directly driven from a CMOS or TTL logic circuit (e.g., an MPU). The IC offers intelligent self-protection functions. Features l A monolithic power IC with a new structure combining a control block and a vertical power MOSFET (π-MOS) on a single chip. l Can directly drive a power load from a CMOS or TTL logic. l Built-in Protection circuits against overvoltage, load short circuiting, and thermal shutdown. Weight: 0.36 g (typ.) l Low on-resistance. RDS (ON) = 0.25 (max) (@VIN = 5 V, Tj = 25°C) l Package TO-92(MOD) can be packed in tape. Pin Assignment Note: That because of its MOS structure, this product is sensitive to static electricity. 1 2002-10-24 TPD1028BS Block Diagram Pin Description Pin No. Symbol Pin Description 1 IN Input pin. This pin is connected to a pull-down resistor internally, so that even when input wiring is open-circuited, outputcan never be turned on inadvertently. 2 OUT Output pin. If an inrush current flows (e.g., from a lamp), the current is clamped at 10 A (typ.) by an overcurrent protective circuit. Also, a 150 µs (typ.) mask circuit is included internally, so that if VDS≥12 V (typ.) after this mask time, the current is clamped at 3 A (typ.). 3 GND Ground pin. Timing Chart 2 2002-10-24 TPD1028BS Truth Table In Vout L H H L L H H L L H H L L H H H State Normal Overcurrent (during inrush) Overcurrent (shorted load) Overtemperature Maximum Rating (Ta = 25°C) Characteristic Symbol Rating Unit VDS (DC) 40 V ID 1.5 A Input voltage VIN − 0.5 ~ 6 V Power dissipation PD 0.9 W Energy tolerance ES / B 200 mJ Topr − 40 ~ 85 °C Tj 150 °C Drain-source voltage Output current Operating temperature Junction temperature 3 2002-10-24 TPD1028BS Electrical Characteristics (Tj = 25°C) Symbol Test Circuit Drain-source breakdown voltage V (BR) DSS ― Operating supply voltage VDD ― VIH(1) ― VIH(2) Characteristic High level input voltage Low level input voltage Current at output off Min Typ. Max Unit 40 ― ― V ― ― 38 V VDS = 24 V, ID = 1 A 4.5 5 5.5 ― VDS = 10 V, ID = 0.75 A 3.9 5 5.7 VIH(3) ― VDS = 38 V, ID = 0.75 A 3.9 5 5.7 VIL(1) ― VDS = 24 V, ID = 10 µA ― ― 0.8 VIL(2) ― VDS = 10 V, ID = 10 µA ― ― 0.8 VIL(3) ― IDSS(1) IDSS(2) ― Test Condition VIN = 0 V, ID = 10 mA ― VDS = 38 V, ID = 10 µA ― ― 0.8 VIN = 0 V, VDS = 40 V ― ― 100 VIN = 0 V, VDS = 24 V ― ― 10 ― ― 300 V V µA Input current IIN ― VIN = 5 V, at normal operation On resistance RDS(ON) ― VIN = 5 V, ID = 1 A ― ― 0.25 Ω TS ― VIN = 5 V ― 160 ― °C IS(1) ― VDS = 24 V, VIN = 5 V, during inrush ― 10 ― IS(2) ― VDS = 24 V, VIN = 5 V, when shorted load ― 3 ― VDS ― when shorted load ― 12 ― 1 VDS = 24 V, VIN = 5 V, RL = 24 Ω ― 70 ― ― 120 ― ― IF = 1.5 A ― 0.9 1.8 Thermal shutdown temperature Overcurrent protection Shorted load detection voltage Switching time Diode forward voltage between drain and source tON tOFF VDSF µA A V µs V Test Circuit 1 4 2002-10-24 TPD1028BS 5 2002-10-24 TPD1028BS 6 2002-10-24 TPD1028BS Package Dimensions Weight: 0.36 g (typ.) 7 2002-10-24 TPD1028BS RESTRICTIONS ON PRODUCT USE 000707EBA · TOSHIBA is continually working to improve the quality and reliability of its products. Nevertheless, semiconductor devices in general can malfunction or fail due to their inherent electrical sensitivity and vulnerability to physical stress. It is the responsibility of the buyer, when utilizing TOSHIBA products, to comply with the standards of safety in making a safe design for the entire system, and to avoid situations in which a malfunction or failure of such TOSHIBA products could cause loss of human life, bodily injury or damage to property. In developing your designs, please ensure that TOSHIBA products are used within specified operating ranges as set forth in the most recent TOSHIBA products specifications. Also, please keep in mind the precautions and conditions set forth in the “Handling Guide for Semiconductor Devices,” or “TOSHIBA Semiconductor Reliability Handbook” etc.. · The TOSHIBA products listed in this document are intended for usage in general electronics applications (computer, personal equipment, office equipment, measuring equipment, industrial robotics, domestic appliances, etc.). These TOSHIBA products are neither intended nor warranted for usage in equipment that requires extraordinarily high quality and/or reliability or a malfunction or failure of which may cause loss of human life or bodily injury (“Unintended Usage”). Unintended Usage include atomic energy control instruments, airplane or spaceship instruments, transportation instruments, traffic signal instruments, combustion control instruments, medical instruments, all types of safety devices, etc.. Unintended Usage of TOSHIBA products listed in this document shall be made at the customer’s own risk. · The products described in this document are subject to the foreign exchange and foreign trade laws. · The information contained herein is presented only as a guide for the applications of our products. No responsibility is assumed by TOSHIBA CORPORATION for any infringements of intellectual property or other rights of the third parties which may result from its use. No license is granted by implication or otherwise under any intellectual property or other rights of TOSHIBA CORPORATION or others. · The information contained herein is subject to change without notice. 8 2002-10-24