High-side Power Switch with Diagnostic Function SI-5151S External Dimensions (unit: mm) 4.2 ±0.2 3.2 ±0.2 10 ±0.2 16.9 ±0.3 4 ±0.2 2.8 ±0.2 20 max ● Built-in diagnostic function to detect short and open circuiting of loads and output status signals ● Low saturation PNP transistor use ● Allows direct driving using LS-TTL and C-MOS logic levels ● Built-in overcurrent and thermal protection circuits ● Built-in protection against reverse connection of power supply ● TO-220 equivalent full-mold package not require insulation mica 7.9 ±0.2 Features 2.6 ±0.1 a Parameter Symbol +0.2 0.94 ±0.15 (Ta=25ºC) Ratings Unit Power supply voltage VB 40 V Input terminal voltage VIN –0.3 to VB V DIAG terminal voltage VDIAG 6 V R-end Conditions +0.2 +0.2 0.45 –0.1 0.85 –0.1 Collector-emitter voltage P1.7 ±0.1 • 4 = 6.8 VCE 40 V IO 1.8 A PD1 18 W With infinite heatsink (Tc = 25ºC) PD2 1.5 W Stand-alone without heatsink (Tc = 25ºC) Junction temperature Tj –40 to +125 ºC Operating temperature TOP –40 to +100 ºC Storage temperature Tstg –40 to +125 ºC Output current Power Dissipation 3.6 ±0.5 Absolute Maximum Ratings 2.9 –0.3 b 4 ±0.6 1. GND 2. VIN 3. VO 4. DIAG 5. VB a: Type No. b: Lot No. (Forming No. 1123) Standard Circuit Diagram VB 5 Electrical Characteristics Symbol Operating power supply voltage VBopr Quiescent circuit current min Iq Saturation voltage of output transistor VCE (sat) Output leak current IO, leak typ 6.0 5 max Unit VO SI-5151S Conditions VIN 2 30 V 12 mA 0.5 V 1.0 V 2 mA V VBopr = 6 to 16V VBopr = 6 to 16V LS-TTL or CMOS IO 1.0A, VBopr = 6 to 16V VCC DIAG 4 VBopr = 14V, VIN = 0V PZ 3 5.1kΩ 1 Load Parameter (Ta=25ºC unless otherwise specified) Ratings IO 1.8A, VBopr = 6 to 16V VCEO = 16V Output ON VIH 2.0 VB Output OFF VIL –0.3 0.8 V Output ON I IH 1 mA VIN = 5V VIN = 0V GND Truth table VIN VO Input voltage H H L L Input current Output OFF I IL –0.1 mA Overcurrent protection starting current IS 1.9 A Thermal protection starting temperature TTSD 125 Open load detection resistor Ropen VBopr = 14V, VO = VBopr –1.5V Diagnostic Function ºC 145 30 kΩ VBopr = 6 to 16V TON 8 30 µS VBopr = 14V, IO = 1A TOFF 15 30 µS VBopr = 14V, IO = 1A Output transfer time 6 V VCC = 6V VDL 0.3 V VCC = 6V, IDD = 2mA TPLH 30 µS VBopr = 14V, IO = 1A TPHL 30 µS VBopr = 14V, IO = 1A VDH 4.5 DIAG output voltage DIAG output transfer time Minimum load inductance L 1 Normal Shorted load Overheat Normal VIN VO DIAG mH VIN DIAG VO L L L H H H L H H Open load H H H L L L Shorted load H L L L L L Overheat H L L ● DIAG output will be undetermined when a voltage exceeding 25V is applied to VB terminal. Mode Note: * The rule of protection against reverse connection of power supply is VB = –13V, one minute (all terminals except, VB and GND, are open). 20 Open load Normal ■ Quiescent Circuit Current ■ Circuit Current 10 ■ Saturation Voltage of Output Transistor 1.0 40 Ta = --40ºC 30 V B= 6 to 16V 25ºC --40ºC 20 VCE (sat) (V) 95ºC 5 IB (mA) Iq (mA) Ta = 25ºC Ta = 95ºC 95ºC 0.5 --40ºC 10 25ºC 0 0 10 20 30 0 40 0 0 10 20 VB (V) 50 0 14 14 VB = 14V 12 10 VO (V) VO (V) 8 8 8 6 6 6 4 4 4 2 2 2 0 0 0 1 2 0 0 3 1 2 0 3 20 2 3 IO (A) ■ Input Current (Output ON) ■ Threshold input voltage ■ Input Current (Output OFF) 2 1.0 15 1 IO (A) IO (A) Ta = 95ºC VB = 14V 12 10 10 3 16 14 VB = 14V 2 ■ Overcurrent Protection Characteristics (Ta=100ºC) 16 12 1 IO (A) ■ Overcurrent Protection Characteristics (Ta=25ºC) 16 VO (V) 40 VB (V) ■ Overcurrent Protection Characteristics (Ta= –40ºC) VIN = 0V VB = 14V VIN = 5V VB = 14V 25ºC –40ºC 10 IIL (µA) VB = 16V I O = 1A IIH (mA) VO (V) 30 0.5 1 5 0 –40 0 0 1 2 2.2 0 50 Ta (ºC) VIN (V) ■ Saturation Voltage of DIAG Output 0 50 100 Ta (ºC) 16 VB = 14V Vo 14 0.1 12 6 10 5 DIAG (V) VO (V) VDG (sat) (V) 0 –40 ■ Thermal Protection Characteristics 0.2 0 –40 100 8 6 DIAG VB = 14V IO = 10mA 4 3 4 2 2 1 0 0 50 Ta (ºC) 100 0 50 100 150 Ta (ºC) 21