Quad-Gated, Inverting Power Drivers CA3262AQ

Features

• Independent Over-Current Limiting On Each Output

• Independent Over-Temperature Limiting On Each Output

• Output Drivers Capable of Switching 700mA Load

• Inputs Compatible With TTL or 5V CMOS Logic

• Suitable For Resistive, Lamp or Inductive Loads

• Power-Frame Package Construction For Good Heat

  Dissipation

• Operating Temperature Ranges

  - CA3262A . . . . . . . . . . . . . . . . . . . . . . . -40℃ to 125℃ 

  - CA3262 . . . . . . . . . . . . . . . . . . . . . . . . . -40℃ to 85℃

Applications                          System Applications

• Solenoids                             • Automotive

• Relays                                 • Appliances

• Lamps                                 • Industrial Controls

• Steppers                              • Robotics

• Small Motors

• Displays

Ordering Information

Description

The CA3262 and CA3262A are used to interface low-level

logic to high current loads. Each Power Driver has four

inverting switches consisting of a non-inverting logic input

stage and an inverting low-side driver output stage. All inputs

are 5V TTL/CMOS logic compatible and have a common

Enable input. Each output device has independent current

limiting (ILIM) and thermal limiting (TLIM) for protection from

over-load conditions. Steering diodes connected from each

output (in pairs) to the Clamp pins may be used in

conjunction with external zener diodes to protect the IC

against over-voltage transients that result from inductive load

switching.

To allow for maximum heat transfer from the chip, all ground

pins on the DIP, PLCC and SOIC packages are directly

connected to the mounting pad of the chip. Integral heat

spreading lead frames directly connect the bond pads and

ground leads to conduct heat from the chip junction to the

PC Board for good heat dissipation.

The CA3262 and CA3262A can drive four incandescent

lamp loads without modulating their brilliance when the

“cold” lamps are energized. Outputs may be parallel

connected to drive high current loads. The maximum output

current of each output is determined by the over-current lim-

iting threshold which is typically 1.2A but may be as low as

0.7A.

Pinouts