CS8240 CS8240 500mA High Side (PNP) Driver with On-Chip Flyback Diode Description The CS8240 is a fast, PNP high side driver capable of delivering up to 500mA into a resistive or inductive load in harsh automotive or industrial environments. An internal flyback diode clamp is incorporated for inductive loads. The input (VIN) is TTL and CMOS compatible and has hysteresis to minimize the effects of noise. When the input is high, the output is on. When the input is low, the output is off and the supply voltage quiescent current is Features very low (<1.0µA, typ). For device protection, the CS8240 incorporates thermal shutdown, short circuit current limiting, over voltage shutdown, and reverse battery protection. The CS8240 can withstand supply voltage transients of 60V (min) and -50V. The CS8240 is available in an overmolded 5 lead TO-220 package and is a competitive replacement for the LM-1921, LM-1951, LM-1952, MC-3399, and L-9350. Absolute Maximum Ratings Supply Voltage.....................................................................................6V to +26V Overvoltage Protection ....................................................................................60V Reverse Voltage ........................................................................................-16V DC .........................................................................................-50V Transient Internal Power Dissipation .....................................................Internally limited Logic Input Voltage ..........................................................................-0.3V to 7.0V Junction Temperature Range.....................................................-40¡C to +150¡C Storage Temperature Range ......................................................-55¡C to +165¡C Lead Temperature Soldering Wave Solder(through hole styles only).............10 sec. max, 260¡C peak Electrostatic Discharge (Human Body Model) ............................................2kV ■ Low Output Saturation Voltage 0.22V at IOUT = 125mA 0.33V at IOUT = 225mA ■ Overmolded Package ■ On-Chip Flyback Diode ■ Fault Protection Over voltage Shutdown (32V, typ) Thermal Shutdown (165¡C, typ) Short Circuit Limiting (1.1A typ) -50V Reverse Transient Protection 60V Load Dump Protection Reverse Battery ■ Low Quiescent Current (Off State) ■ ESD Protected Package Options 5 Lead TO-220 Overmolded Block Diagram VCC Current Limit Overvoltage Shutdown Control Circuit 1 2 3 4 5 OUT VIN VCC OUT NC Gnd VIN 1 Thermal Shutdown Gnd Cherry Semiconductor Corporation 2000 South County Trail, East Greenwich, RI 02818 Tel: (401)885-3600 Fax: (401)885-5786 Email: [email protected] Web Site: www.cherry-semi.com Rev. 1/27/98 1 A ¨ Company CS8240 Electrical Characteristics: -40¡C ² TA ² 125¡C, -40¡C ² TJ ² 150¡C, unless otherwise noted. PARAMETER ■ General Characteristics Operating Supply Voltage Quiescent Current ■ Output Stage Output Saturation Voltage Output Leakage Current Negative Output Clamp Turn On Delay Time Turn Off Delay Time ■ Input Stage Input Voltage TEST CONDITIONS MIN MAX UNIT 1 100 V µA 16 25 30 50 mA mA 0.22 0.33 1 -15.5 5 5 0.5 0.7 150 -12 20 20 V V µA V us us 1.45 1.2 100 15 2.0 200 50 V V µA µA 6.0 VCC = 12V, VIN ² VIN(LOW) VIN ³ VIN(HI), RLOAD = 50½, 6 ² VCC ² 20V 20V ² VCC ² 24V VIN ² VIN(HI), VCC = 6.0V, ILOAD = 125mA VCC = 14V, ILOAD = 225mA Input ² VIN(L), VCC = 12V, VOUT = 0V ICLAMP = 100mA, VCC = 12V VCC = 12V, ILOAD = 150mA VCC = 12V, ILOAD = 150mA Logic = High, VCC = 12V Turn ON Logic = Low, VCC = 12V Turn OFF VIN = 5.5V VIN = 0.8V Input Current TYP ■ Protection Circuitry Overvoltage Shutdown VIN ³ VIN(HI) Output Short Circuit Current VIN ³ VIN(HI), VCC = 12V, VOUT = 0V Thermal Shutdown -18 0.8 26 0.55 150 32 1.1 165 2.5 V A ¡C Package Lead Description PACKAGE LEAD # LEAD SYMBOL FUNCTION 5 Lead TO-220 1 VCC Supply voltage to IC. Supplies load current through output PNP. 2 OUT Collector of output PNP, current to load is sourced from this lead. 3 NC No connection. 4 Gnd Ground. 5 VIN Input voltage to control output. Logic high turns output on. Logic low turns output off. 2 CS8240 Typical Performance Characteristics Quiescent Current vs. IOUT Output Saturation Voltage vs. IOUT 40 1.20 +125°C 1.10 35 1.00 VCC = 12V VIN ³ 2.0V 30 +25°C 0.80 -40°C VSAT (V) IQ (mA) 25 20 15 +125°C VCC = 12V VIN ³ 2.0V 0.90 0.70 +25°C 0.60 -40°C 0.50 0.40 10 0.30 0.20 5 0.10 0 0 0 100 200 300 400 500 0 600 100 200 300 400 500 600 IOUT (mA) IOUT (mA) Turn-on Delay Time Flyback Clamp Characteristics 5V Load = 80W, 50mH 5V VIN VIN 0V 0V 12V 12V 0V VOUT VOUT -15V 0V 1 0 2 3 4 5 6 7 0 8 1 2 3 5 4 6 7 8 9 10 (ms) (ms) IIN vs. VIN Turn Off Delay Time 60 5V 50 ON Input Current (mA) VIN 0V 12V VOUT 40 30 OFF 20 10 -15V 0 0 2 4 6 8 10 12 14 16 18 0 20 (ms) 0.2 0.4 0.6 0.8 1.0 1.2 1.4 Input Voltage (V) 3 1.6 1.8 2.0 CS8240 Circuit Description Input Stage The input stage is a self biased band gap based circuit with a positive going trip point of 1.45V (typ) and a negative going trip point of 1.20V (typ) (250mV of hysteresis). When the input voltage is below the positive trip point, the quiescent current of the supply voltage line is less than 1µA, (typ). When the input voltage exceeds the positive trip point (1.45V, typ), the input stage Òwakes upÓ the rest of the CS8240 circuitry and turns on the output stage. Output Stage The output stage is built around a high current PNP output transistor. A control amplifier monitors the saturation voltage of the output PNP and maintains a balance of low saturation voltage and minimum base drive to the PNP for the given out- put current. The base drive of the PNP is the dominant component of the quiescent current of the CS8240 and is dependent on the level of output current. Short circuit protection (1.1A, typ) is also incorporated in the output stage. Protection Circuitry In addition to the short circuit protection mentioned above, the CS8240 also incorporates a thermal shutdown circuit (165¡C, typ) and a high voltage shutdown circuit (33V, typ), both of which cut off the drive to the PNP output transistor when excessive current is drawn. Inherent in the design of the CS8240 is transient protection to +60V and -50V on the supply line. The CS8240 is ESD protected in excess of 2kV (Human Body Model). Typical Application Circuits Solenoid Driver VCC* 1 0.1mF 2 CS8240 5V 0V 5 3 Lamp Driver VCC 1 0.1mF 2 CS8240 GE194 5 3 VCC = 6.0V to 26.0V Controlled High Side Switch VBAT VIGNITION CS8240 LOAD 15kW 4 CS8240 Package Specification PACKAGE THERMAL DATA PACKAGE DIMENSIONS IN mm (INCHES) Thermal Data RQJC typ RQJA 5 Lead TO-220 (Overmolded) 4.0 ûC/W typ 50 ûC/W 5 Lead Overmolded TO-220 (TFVA) Vertical 10.3 (.405) 10.0 (.395) .761 (.030) .508 (.020) 3.30 (.130) 2.89 (.114) 2.79 (.110) 2.54 (.100) 3.17 (.125) 2.92 (.115) 7.18 (.283) 6.94 (.273) 15.6 (.614) 15.3 (.604) 3.30 (.130) DIA 3.05 (.120) 4.70 (.185) 4.44 (.175) 3.18 (.125) 2.92 (.115) 3.10 (.122) Note: Leads maintain a right angle with respect to the package body to within ± .015². 10.4 (.409) .94 (.037) .69 (.027) 5.89 (.232) 4.01 (.158) 8.05 (.317) .56 (.022) .36 (.014) 1.70 (.067) 6.80 (.268) 1.68 (.066) TYP Ordering Information Part Number CS8240YTFVA5 Rev. 1/27/98 Cherry Semiconductor Corporation reserves the right to make changes to the specifications without notice. Please contact Cherry Semiconductor Corporation for the latest available information. Description 5 Lead Overmolded TO-220 Vertical 5 © 1999 Cherry Semiconductor Corporation