CAT4016_08 CATALYST [Catalyst Semiconductor], CAT4016_08 Datasheet

CAT4016_08

Manufacturer Part Number

CAT4016_08

Description

16-Channel Constant Current LED Driver

Manufacturer

CATALYST [Catalyst Semiconductor]

Datasheet

1.CAT4016_08.pdf (15 pages)

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Download datasheet (232Kb)

16-Channel Constant Current LED Driver

FEATURES

APPLICATION

TYPICAL APPLICATION CIRCUIT

Characteristics subject to change without notice

For Ordering Information details, see page 14.

VIN

3V to

5.5V

16 Constant current-sink channels

Serial interface up to 25MHz clock frequency

3V to 5.5V logic supply

LED current range from 2mA to 100mA

LED current set by external RSET resistor

300mV LED dropout at 30mA

Thermal shutdown protection

Available in RoHS-compliant 24-lead SOIC,

TSSOP, QSOP, and 4 x 4mm TQFN packages

Billboard Display

Marquee Display

Instrument Display

General Purpose Display

1µF

VDD

BLANK

LATCH

SIN

CLK

LED1

CAT4016

LED2

GND

LED16

SOUT

RSET

20mA

to next

device

3kΩ

DESCRIPTION

The CAT4016 is a 16 channel constant current driver

for

applications. LED channel currents are programmed

together via an external RSET resistor. Low output

voltage operation on the LED channels as low as 0.4V

(for 2 to 100mA LED current) allows for more power

efficient designs.

A high-speed 4-wire serial interface of up to 25MHz

clock frequency controls each individual channel using

a shift register and latch configuration. A serial output

data pin (SOUT) allows multiple devices to be

cascaded and programmed via one serial interface.

The device also includes a blanking control pin

(BLANK) that can be used to disable all channels

independently of the interface.

Thermal shutdown protection is incorporated in the

device to disable the LED outputs if the die

temperature exceeds a set limit.

The device is available in the 24-lead SOIC, TSSOP,

QSOP and the compact TQFN 4 x 4mm packages.

LED

billboard

and

other

general

CAT4016

Doc. No. MD-5028 Rev. C

display

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