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High-side Power Switch with Diagnostic Function SI-5151S Features q Built-in diagnostic function to detect short and open circuiting of loads and output status signals q Low saturation PNP transistor use q Allows direct driving using LS-TTL and C-MOS logic levels q Built-in overcurrent and thermal protection circuits q Built-in protection against reverse connection of power supply q TO-220 equivalent full-mold package not require insulation mica External Dimensions (unit: mm) 3.2 0.2 10 0.2 4.2 0.2 2.8 0.2 4 0.2 7.9 0.2 16.9 0.3 2.6 0.1 a 2.9 -0.3 +0.2 b Absolute Maximum Ratings Parameter Power supply voltage Input terminal voltage DIAG terminal voltage Collector-emitter voltage Output current Symbol VB VIN VDIAG VCE IO PD1 Power Dissipation PD2 Junction temperature Operating temperature Storage temperature Tj TOP Tstg 1.5 -40 to +125 -40 to +100 -40 to +125 W C C C Ratings 40 -0.3 to VB 6 40 1.8 18 Unit V V V V A W (Ta=25C) Conditions 0.94 0.15 R-end 0.85 -0.1 P1.7 0.1 * 4 = 6.8 +0.2 0.45 -0.1 4 0.6 With infinite heatsink (Tc = 25C) Stand-alone without heatsink (Tc = 25C) 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 Parameter Operating power supply voltage Quiescent circuit current Saturation voltage of output transistor Output leak current Output ON Input voltage Output OFF Output ON Input current Output OFF Overcurrent protection starting current Thermal protection starting temperature Open load detection resistor Output transfer time TOFF VDH DIAG output voltage VDL TPLH DIAG output transfer time TPHL Minimum load inductance L 1 30 0.3 30 4.5 15 30 6 IIL IS -0.1 1.9 VIL IIH -0.3 0.8 1 Symbol VBopr Iq VCE (sat) 1.0 IO, leak VIH 2.0 2 VB Ratings min 6.0 5 typ max 30 12 0.5 (Ta=25C unless otherwise specified) Unit V mA V V mA V V mA mA A VBopr = 14V, VIN = 0V IO 1.0A, VBopr = 6 to 16V IO 1.8A, VBopr = 6 to 16V VCEO = 16V VBopr = 6 to 16V VBopr = 6 to 16V VIN = 5V VIN = 0V VBopr = 14V, VO = VBopr -1.5V LS-TTL or CMOS 1 VO PZ VCC Conditions VIN 2 SI-5151S 3 DIAG 4 5.1k Load Truth table VIN VO H L H L GND Diagnostic Function TTSD Ropen TON 8 125 145 30 30 C k S S V V S S 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 q DIAG output will be undetermined when a voltage exceeding 25V is applied to VB terminal. VBopr = 6 to 16V VBopr = 14V, IO = 1A VBopr = 14V, IO = 1A VCC = 6V VCC = 6V, IDD = 2mA VBopr = 14V, IO = 1A VBopr = 14V, IO = 1A Normal Open load Shorted load Overheat Normal VIN VO DIAG 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). Normal 20 3.6 0.5 +0.2 20 max s Quiescent Circuit Current 10 s Circuit Current 40 Ta = --40C s Saturation Voltage of Output Transistor 1.0 30 Ta = 25C V B= 6 to 16V IB (mA) 5 95C 25C --40C VCE (sat) (V) Iq (mA) 20 Ta = 95C 0.5 95C --40C 25C 10 0 0 10 20 30 40 0 0 0 10 20 30 40 50 0 1 2 3 VB (V) VB (V) IO (A) s Overcurrent Protection Characteristics (Ta= -40C) 16 14 12 10 VB = 14V s Overcurrent Protection Characteristics (Ta=25C) 16 14 12 10 VB = 14V s Overcurrent Protection Characteristics (Ta=100C) 16 14 12 10 VB = 14V VO (V) VO (V) 8 6 4 2 0 0 1 2 3 8 6 4 2 0 0 1 2 3 VO (V) 8 6 4 2 0 0 1 2 3 IO (A) IO (A) IO (A) s Threshold input voltage 20 Ta = 95C 15 VB = 16V I O = 1A 25C -40C s Input Current (Output ON) 1.0 VIN = 5V VB = 14V s Input Current (Output OFF) 2 VIN = 0V VB = 14V IIH (mA) VO (V) IIL (A) 0 50 100 10 0.5 1 5 0 0 1 2 2.2 0 -40 0 -40 0 50 100 VIN (V) Ta (C) Ta (C) s Saturation Voltage of DIAG Output 0.2 VB = 14V s Thermal Protection Characteristics 16 14 12 6 5 Vo DIAG VB = 14V IO = 10mA VDG (sat) (V) DIAG (V) 10 VO (V) 0.1 8 6 4 2 4 3 2 1 0 -40 0 0 50 100 0 50 100 150 Ta (C) Ta (C) 21 |
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