HomedatasheetCA3242

CA3242 Datasheet

Quad-gated Inverting Power Driver For Interfacing Low-level Logic to High Current Load
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Description

Features, Applications

Quad-Gated Inverting Power Driver For Interfacing Low-Level Logic to High Current Load
Description

The CA3242 quad-gated inverting power driver contains four gate switches for interfacing low-level logic to inductive and resistive loads such as: relays, solenoids, AC and DC motors, heaters, incandescent displays, and vacuum fluorescent displays. Output overload protection is provided when the load current (approximately 1.2A) causes the output VCE(sat) to rise above 1.3V. A built-in time delay, nominally 25�s, is provided during output turn-on as output drops from VDD to VSAT. That output will be shut down by its protection network without affecting the other outputs. The corresponding Input or Enable must be toggled to reset the output protection circuit. Steering diodes in the outputs in conjunction with external zener diodes protect the IC against voltage transients due to switching inductive loads. To allow for maximum heat transfer from the chip, the four center leads are directly connected to the die mounting pad. In free air, junction-to-air thermal resistance (RJA) is 60oC/W (typical). This coefficient can be lowered by suitable design of the PC board to which the CA3242 is soldered.

Features

Driven Outputs Capable of Switching 600mA Load Currents Without Spurious Changes in Output State Inputs Compatible with TTL or 5V CMOS Logic Suitable for Resistive or Inductive Loads Output Overload Protection Power-Frame Construction for Good Heat Dissipation

Applications
Relays Solenoids AC and DC Motors Heaters Incandescent Displays Vacuum Fluorescent Displays
PART NUMBER CA3242E TEMPERATURE RANGE to +105oC PACKAGE 16 Lead Plastic DIP

9 7 OUT A 1 CLAMP 2 OUT B 3 GND 4 GND 5 OUT C 6 CLAMP 7 OUT B 14 ENABLE 13 GND 12 GND 11 VCC 10 INC 9 IND P 1 CLAMP GND 13 ENABLE 4 3 GND VCC 11 GND 12 5 GND P 6 OUT C CLAMP 8 OUT D

CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures. 321-724-7143 | Copyright � Intersil Corporation 1999

Logic Supply Voltage, VCC. 7V Logic Input Voltage, VIN. 15V Output Voltage, VCEX. 50VDC Output Sustaining Voltage, VCESUS. 35VDC Output Current, IO. 1ADC

Thermal Resistance JA JL Plastic DIP. 60oC/W Plastic DIP (to Pins 12oC/W Power Dissipation, 60oC. 1.5W Above 60oC. Derate Linearly to 90oC w/Heat Sink (PC Board). 1.5W Above 90oC w/Heat Sink (PC Board). Derate Linearly at 25mW/oC Ambient Temperature Range Operating. to +105oC Storage. to +150oC Maximum Junction Temperature, TJ. +150oC Lead Temperature (During Soldering) At distance 1/16 inch � 1/32 inch � 0.79mm) from case for 10s max. +265oC

CAUTION: Stresses above those listed in "Absolute Maximum Ratings" may cause permanent damage to the device. This is a stress only rating and operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied.

PARAMETERS Output Leakage Current Output Sustaining Voltage Collector Emitter Saturation Voltage SYMBOL ICEX VCE(SUS) VCE(SAT) TEST CONDITIONS VCE = 50V, VIN = 100mA, VIN = 100mA, VIN = 400mA, VIN = 600mA, VIN = 2.4V Input Low Voltage Input Low Current Input High Voltage Input High Current Supply Current ON Supply Current OFF Clamp Diode Leakage Current Clamp Diode Forward Voltage VIL IIL VIH IIH ICC(ON) ICC(OFF) = 1.5A Turn-On Delay Turn-Off Delay NOTE: = +25oC, Unless Otherwise Specified tPHL tPLH VIN = 700mA, VIN = 700mA, VCC = VIH = 5.5V MIN 30 2 MAX UNITS V �s


Features

Parameters

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