BCR 321U E6327 Infineon Technologies, BCR 321U E6327 Datasheet

BCR 321U E6327

Manufacturer Part Number

BCR 321U E6327

Description

IC LED DRIVER LINEAR SC74

Manufacturer

Infineon Technologies

Type

Linear (Non-Switching)r

Datasheet

1.BCR_320U_E6327.pdf (12 pages)

Specifications of BCR 321U E6327

Package / Case

SC-74-6

Constant Current

Yes

Topology

Linear (LDO), PWM

Number Of Outputs

Internal Driver

Yes

Type - Primary

General Purpose

Frequency

10kHz

Voltage - Supply

24V

Voltage - Output

16V

Mounting Type

Surface Mount

Current - Output / Channel

250mA

Internal Switch(s)

Yes

Low Level Output Current

10 mA

High Level Output Current

250 mA

Operating Supply Voltage

4.5 V to 25 V

Maximum Power Dissipation

1000 mW

Maximum Operating Temperature

+ 150 C

Mounting Style

SMD/SMT

Minimum Operating Temperature

- 65 C

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

Operating Temperature

Efficiency

Lead Free Status / Rohs Status

Lead free / RoHS Compliant

Other names

BCR 321U E6327INTR

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LED Driver

Features

Applications

General Description

The BCR320U/BCR321U provide a low-cost solution for driving 0.5W LEDs with a typical

LED current ILED of 150mA to 200mA. Internal breakdown voltage is >16V, this is the

maximum voltage that the LED driver IC can sustain when the ouput is directly connected

to supply voltage. The BCR320U/BCR321U can be operated at supply voltages of 16V or

higher, by regarding the voltage drop of the LED load, which reduces the supply voltage

to the maximum output voltage of the driver.

The enable pin (BCR320) can withstand a maximum voltage of 25 V, which can also be

increased by stacking a series in front of the LED drivers, resulting in a certain voltage

drop of the LEDs, reducing the voltage at the enable pin below 25V.

A digital input pin (BCR321U) allows dimming via a Microcontroller

with frequencies of up to 10 kHz.

A reduction of the output current at higher temperatures is the result of the negative

temperature coefficient of 0.2 %/K. of the LED drivers.

With no need for additional external components like inductors, capacitors and

free wheeling diodes, the BCR320U/BCR321U LED drivers are a cost-efficient and

PCB-area saving solution for driving 0.5W LEDs.

Negative thermal coefficient reduces output current

Automotive qualified according to AEC Q101

Continuous output current up to 250mA

Supply voltage up to 24V

Digital PWM input up to 10kHz frequency (BCR321U)

Up to 1W power dissipation in a small SC74 package

Easy paralleling of drivers to increase current

PB-free (RoHS compliant) package

Architectural LED lighting

Channel letters for advertising, LED strips for decorative lighting

Retail lighting in fridge, freezer case and vending machines

Emergency lighting (e.g. steps lighting, exit way signs etc.)

with external resistor

at higher temperatures

BCR320U / BCR321U

2010-01-15

Related parts for BCR 321U E6327

BCR 321U E6327 Summary of contents

Page 1

LED Driver Features Continuous output current up to 250mA with external resistor Supply voltage up to 24V Digital PWM input up to 10kHz frequency (BCR321U power dissipation in a small SC74 package Negative thermal coefficient reduces output ...

Page 2

Pin Configuration Type Marking BCR320U 30 BCR321U 31 Maximum Ratings Parameter Enable voltage BCR320U BCR321U Output current Output voltage Reverse voltage between all terminals Total power dissipation Junction temperature Storage temperature Thermal Resistance Parameter ...

Page 3

Electrical Characteristics at T Parameter Characteristics Collector-emitter breakdown voltage mA Enable current BCR320U 3.3 , BCR321U EN DC current gain mA, V ...

Page 4

Total power dissipation P 1200 mW 1000 900 800 700 600 500 400 300 200 100 Permissible Pulse Load totmax totDC ...

Page 5

BCR320U: Output current versus out out Parameter ext 0.3 Rext = 3 Ohm Rext = 4 Ohm A Rext = 6 Ohm Rext = 10 Ohm ...

Page 6

BCR320U: Output current versus out Parameter A 0.5 A 0.3 0.2 0 BCR320U: Output current versus ...

Page 7

BCR320U: Output current versus 2.0 V; out EN out R = Parameter ext 0.3 Rext = 3 Ohm Rext = 4 Ohm A Rext = 6 Ohm Rext = 10 Ohm ...

Page 8

BCR321U: Output current versus 3 out Parameter A 0.015 TA = -40° 25° 85°C A 0.005 ...

Page 9

BCR321U: Output current versus 2 out EN out T = Parameter A 0.06 A 0.04 0.03 0.02 0. BCR321U: Output current versus ...

Page 10

Application circuit: Enabling / PWM by micro controller +Vs µ OUT BCR321U Application hints BCR320U / BCR321U serve as an easy to use constant current sources for LEDs. In stand alone application an external resistor can ...

Page 11

Package Outline 2.9 (2.25 Pin 1 marking Foot Print Marking Layout (Example) Small variations in positioning of Date code, Type code and Manufacture are possible. Pin 1 marking Laser marking Standard Packing Reel ø180 mm = 3.000 Pieces/Reel ...

Page 12

... For information on the types in question, please contact the nearest Infineon Technologies Office. Infineon Technologies components may be used in life-support devices or systems only with the express written approval of Infineon Technologies failure of such components can reasonably be expected to cause the failure of that life-support device or system or to affect the safety or effectiveness of that device or system. ...

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