High-side Power Switch with Diagnostic Function SI-5155S External Dimensions (unit: mm) ● 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 ● Tj = 150ºC guaranteed ● TO-220 equivalent full-mold package not require insulation mica 4.2 ±0.2 3.2 ±0.2 10 ±0.2 20 max 16.9 ±0.3 4.0 ±0.2 2.8 ±0.2 7.9 ±0.2 Features a 2.6 ±0.1 Symbol Ratings Unit Conditions +0.2 +0.2 0.45 –0.1 0.85 –0.1 P1.7 ±0.15 • 4 VB –13 to +40 V Input terminal voltage VIN –0.3 to VB V DIAG terminal voltage VDIAG 6 V VCE 40 V IO 2.5 A PD1 22 W With infinite heatsink (Tc=25ºC) PD2 1.8 W Stand-alone without heatsink Junction temperature Tj –40 to +150 ºC Operating temperature TOP –40 to +100 ºC Storage temperature Tstg –40 to +150 ºC Output current +0.2 (Ta=25ºC) Power supply voltage Collector-emitter voltage 3.6 ±0.5 0.94 ±0.15 Absolute Maximum Ratings Parameter 2.9 –0.3 b 1 2 3 4 4 ±0.6 1. GND 2. VIN 3. Vo 4. DIAG 5. VB 5 a: Type No. b: Lot No. (Forming No. 1111) Power dissipation Standard Circuit Diagram VB 5 VO (Ta=25ºC unless otherwise specified) SI-5155S Ratings Parameter Symbol Operating power supply voltage VBopr Quiescent circuit current min 6.0 Iq Saturation voltage of output transistor VCE (sat) Output leak current IO, leak typ 5 max Unit 30 V 12 mA 0.3 V 0.72 V 2 mA VIN 2 Conditions LS-TTL or CMOS VCC DIAG 4 VBopr = 14V, VIN = 0V PZ 3 5.1kΩ 1 Load Electrical Characteristics IO 1.0A, VBopr = 6 to 16V IO 2.5A, VBopr = 6 to 16V Output ON VIH 2.0 VB V VBopr = 6 to 16V Output OFF VIL –0.3 0.8 V VBopr = 6 to 16V Output ON I IH 1 mA VIN = 5V Output OFF I IL –0.1 mA VIN = 0V IS 2.6 A VBopr = 14V, VO = VBopr –1.5V TTSD 150 ºC VBopr 6V kΩ VBopr = 6 to 16V GND Truth table VIN VO VCEO = 16V, VIN = 0V Input voltage H H L L Input current Overcurrent protection starting current Thermal protection starting temperature Open load detection resistor Ropen 30 TON 8 30 µS VBopr = 14V, IO = 1A TOFF 15 30 µS VBopr = 14V, IO = 1A 6 V VCC = 6V, VBopr = 6 to 16V VCC = 6V, VBopr = 6 to 16V, IDO = 2mA Output transfer time VDH 4.5 Diagnostic Function Normal Open load Shorted load Overheat VO L H H H L L L L DIAG Normal VIN VO DIAG output voltage VDL 0.3 V TPLH 30 µS VBopr = 14V, IO = 1A µS VBopr = 14V, IO = 1A DIAG output transfer time TPHL Minimum load inductance L 30 1 mH DIAG Mode Normal Note: * The rule of protection against reverse connection of power supply is VB = –13V, one minute (all terminals except, VB and GND, are open). Open load Shorted load Overheat VIN L H L H L H L H L H H H L L L L ● DIAG output will be undetermined when a voltage exceeding 25V is applied to VB terminal. 28 ■ Quiescent Circuit Current ■ Circuit Current 2 Ta= –40ºC 25ºC 150ºC 5 40 Ta = –40ºC 30 25ºC 20 VCE (sat) (V) 50 IB (mA) Iq (mA) 10 ■ Saturation Voltage of Output Transistor 150ºC Ta = 125ºC 1 25ºC VB = 6 to 16V 10 0 0 10 20 30 –40ºC 0 0 40 10 20 VB (V) 30 16 8 4 8 12 8 8V 8V 4 6V 3 14V 14V 12 VO (V) VO (V) VO (V) 14V 12 16 8V 4 6V 6V 4 0 5 0 1 2 3 4 0 5 0 1 2 IO (A) IO (A) I IH (mA) VB = 16V IO = 1A 10 VB = 14V VIN = 0V 0.8 4 0.6 3 I IL (µA) 15 5 5 VB = 14V VIN = 5V Ta = 125ºC 25ºC –40ºC 4 ■ Input Current (Output OFF) 1.0 20 3 IO (A) ■ Input Current (Output ON) ■ Threshold input voltage VO (V) VB = 18V VB = 18V 16 3 20 VB = 18V 2 2 ■ Overcurrent Protection Characteristics (Ta =125ºC) 20 1 1 IO (A) ■ Overcurrent Protection Characteristics (Ta=25ºC) 20 0 0 VB (V) ■ Overcurrent Protection Characteristics (Ta= –40ºC) 0 0 40 0.4 2 5 0.2 0 0 1 0 –50 2 1 0 VIN (th) (V) 50 100 0 –50 150 0.3 Ta (ºC) 150 VO 10 0.2 0 –50 VDIAG 5 0.1 100 VB = 14V VDIAG = 5V IO = 10mA 15 VO (V) VDL (V) IO leak (mA) 0.4 50 150 20 VB = 14V IDIAG = 2mA VB = 14V 1 100 ■ Thermal Protection Characteristics 0.5 2 0 50 Ta (ºC) ■ Saturation Voltage of DIAG Output ■ Output Terminal Leak Current 0 –50 0 Ta (ºC) 0 0 50 Ta (ºC) 100 150 0 50 100 150 200 Ta (ºC) 29