CS8240

CS8240 CHERRY | Alldatasheet

Document overview

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Technical content

Features

0.22V at IOUT = 125mA 0.33V at IOUT = 225mA n Overmolded Package n On-Chip Flyback Diode n 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 n Low Quiescent Current (Off State) n ESD Protected Package Options

5 Lead TO-220

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 induc- tive loads. The input (V IN) 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 very low (<1.0µA, typ). For device pro- tection, the CS8240 incorporates ther- mal shutdown, short circuit current limiting, over voltage shutdown, and reverse battery protection. The CS8240 can withstand supply voltage tran- sients of 60V (min) and -50V. The CS8240 is available in an overmold- ed 5 lead TO-220 package and is a com- petitive replacement for the LM-1921, LM-1951, LM-1952, MC-3399, and L-9350. CS8240 Lead Temperature Soldering 1V CC

2 OUT

4 Gnd

A Company ¨ Rev. 1/27/98 Cherry Semiconductor Corporation

2000 South County Trail, East Greenwich, RI 02818

Tel: (401)885-3600 Fax: (401)885-5786 Email: info@cherry-semi.com Web Site: www.cherry-semi.com

Electrical Characteristics: -40¡C ² TA ² 125¡C, -40¡C ² TJ ² 150¡C, unless otherwise noted. PARAMETER TEST CONDITIONS MIN TYP MAX UNIT CS8240 Package Lead Description PACKAGE LEAD # LEAD SYMBOL FUNCTION 1V CC 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. IN Input voltage to control output. Logic high turns out- put on. Logic low turns output off. n General Characteristics Operating Supply Voltage 6.0 V Quiescent Current V CC = 12V, VIN ²V IN(LOW) 1 100 µA VIN ³V IN(HI), RLOAD = 50½, 6 ² VCC ² 20V 16 30 mA 20V ² VCC ² 24V 25 50 mA n Output Stage Output Saturation Voltage V IN ²V IN(HI), VCC = 6.0V, ILOAD = 125mA 0.22 0.5 V VCC = 14V, ILOAD = 225mA 0.33 0.7 V Output Leakage Current Input ² V IN(L), VCC = 12V, VOUT = 0V 1 150 µA Negative Output Clamp I CLAMP = 100mA, VCC = 12V -18 -15.5 -12 V Turn On Delay Time V CC = 12V, ILOAD = 150mA 5 20 us Turn Off Delay Time V CC = 12V, ILOAD = 150mA 5 20 us n Input Stage Input Voltage Logic = High, V CC = 12V Turn ON 0.8 1.45 V Logic = Low, VCC = 12V Turn OFF 1.2 2.0 V Input Current V IN = 5.5V 100 200 µA VIN = 0.8V 15 50 µA n Protection Circuitry Overvoltage Shutdown V IN ³V IN(HI) 26 32 V Output Short Circuit Current V IN ³V IN(HI), VCC = 12V, VOUT = 0V 0.55 1.1 2.5 A Thermal Shutdown 150 165 ¡C

Typical Performance Characteristics 0 100 200 300 400 500 600 -40°C +25°C +125°C IOUT (mA) IQ (mA) VCC = 12V VIN ³ 2.0V 1.20 1.10 1.00 0.80 0.70 0.60 0.50 0.40 0 100 200 300 400 500 600 -40°C +25°C +125°C IOUT (mA) VSAT (V) 0.90 0.30 0.20 0.10 VCC = 12V VIN ³ 2.0V Output Saturation Voltage vs. IOUTQuiescent Current vs. IOUT 12V VOUT VIN 0 1 2345 678 (ms) -15V VOUT VIN 12V 51 00 (ms) 617 28 39 4 Load = 80W, 50mH Flyback Clamp CharacteristicsTurn-on Delay Time 12V -15V (ms) VOUT VIN 0 201221 4 41 6 6 188 Input Current (mA) Input Voltage (V) OFF ON IIN vs. VINTurn Off Delay Time

Typical Application Circuits CS8240 0.1mF CS8240 VCC GE194 0.1mF CS8240 VCC* Solenoid Driver VCC = 6.0V to 26.0V VBAT CS8240 LOAD VIGNITION 15kW Lamp Driver Controlled High Side Switch 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 com- ponent of the quiescent current of the CS8240 and is depen- dent 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).

CS8240YTFVA5 5 Lead Overmolded TO-220 Vertical CS8240 Thermal Data 5 Lead TO-220 (Overmolded) RQJC typ 4.0 ûC/W RQJA typ 50 ûC/W Package Specification PACKAGE DIMENSIONS IN mm (INCHES)

Ordering Information

Rev. 1/27/98 © 1999 Cherry Semiconductor Corporation Cherry Semiconductor Corporation reserves the right to make changes to the specifications without notice. Please contact Cherry Semiconductor Corporation for the latest available information.

5 Lead Overmolded TO-220 (TFVA) Vertical

10.3 (.405) 10.0 (.395) .761 (.030) .508 (.020) 15.6 (.614) 15.3 (.604) 3.17 (.125) 2.92 (.115) 7.18 (.283) 6.94 (.273) 3.30 (.130) 2.89 (.114) 10.4 (.409) .94 (.037) .69 (.027) 1.70 (.067) 6.80 (.268) 1.68 (.066) TYP 3.30 (.130) 3.05 (.120) DIA 2.79 (.110) 2.54 (.100) 4.70 (.185) 4.44 (.175) 5.89 (.232) 3.10 (.122) .56 (.022) .36 (.014) 4.01 (.158) 8.05 (.317) Note: Leads maintain a right angle with respect to the package body to within ± .015². 3.18 (.125) 2.92 (.115)