3021-A-E_技术文档

TM

3021/3023 BuckPuck

Wide Range LED Power Module

DATA SHEET Page 1 of 8

Product Overview

The 3021 and 3023 BuckPuck LED Power Modules are a line of true

current regulated drivers for powering LEDs. The BuckPuck line of

LED drivers is the ideal choice for powering all types of high-

brightness and high-power LED Packages and LED arrays.

The line of BuckPuck LED drivers exhibit high eꢁciency and require

no external current limiting resistors or additional heat sinking for

operation. A fast response current-sensing circuit makes the 3021

and 3023 ideal for applications where ꢂashing or strobe operation of

the LED(s) is required.

A wide range of options are available including external dc analog

voltage intensity control, TTL/CMOS logic level on/oꢃ control (”E”

Version), and set-and-forget internal current limiting (”I” Version).

The standard units are fully potted in an extremely small form factor*

and are provided with a simple 7 pin SIP connection for through-hole

PCB mounting (3021) or 6” 24AWG Colored Leads (3023).

The 3021 and 3023’s built-in regulated 5V reference (E and I versions)

can provide output to power logic circuitry or microprocessor,

eliminating the need for an additional power supply on the circuit board.

Features

Typical Applications

DC or AC input voltage up to 32V (24VAC_RMS

)

Solar & Landscape Lighting

Architectural Lighting

Track Lighting

Automotive & Marine Lighting

Portable Lighting & Flashlights

Point of Purchase Lighting

Desk & Reading Lamps

Signal & marker Lighting

Flashing & Strobe Lighting

350mA, 500mA, 700mA, or 1.0A constant current output*

Extremely small form factor* (0.83”x0.83”x0.43”)

The 3021 has a simple 7-pin SIP connection for through-hole

PCB mounting or use with an optional wiring harness (3021Hx)

The 3023 has permanently attached wires

External analog/digital intensity control (TTL compatible)

Optional external potentiometer intensity control (0-100%)

Optional on-board trim adjustment (40-110%)

Output short circuit protection up to 15 seconds

Output open circuit protection

Pulse and strobe capable (control input)

Cabinet & Display Case Lighting

Sign & Channel Letters

Much More...

Built-in 5V reference/output to power logic circuitry or µProcessor

Pb

3021

7-Pin SIP through-hole

PCB mounting

BuckPuck

Optional on-board trim

adjustment (40-110%)

with optional

wiring harness

(3021HEP)

RoHS

C o m p lia n t

2 0 0 2 / 9 5 / E C

* - Custom units can be designed for OEM applications. Contact LUXdrive for more information.

Speciꢀcations subject to change without notice. May, 2013 - Rev 3.1

LEDdynamics, Inc.

802.728.4533 P

802.728.3800 F

sales@LUXdrive.com

www.LUXdrive.com

TM

3021/3023 BuckPuck

Wide Range LED Power Module

DATA SHEET Page 2 of 8

Table 1

Part Number Identiꢁcation Table ^{Product Selection}

Control/

Dimming

Connection

Type

On-Board

Part Number DC Input AC Input

Trim

3021-D-N-xxxx

3021-D-E-xxxx

3021-D-I-xxxx

3023-D-N-xxxx

3023-D-E-xxxx

3021-A-N-xxxx

3021-A-E-xxxx

3021-A-I-xxxx

3023-A-N-xxxx

5-32V

7-32V

5-32V

7-32V

no

yes

no

7-Pin SIP (4 Pins)

7-Pin SIP (6 Pins)

4 Wires

no

yes

no

yes

no

yes

no

6 Wires

7-24V_RMS

7-Pin SIP (4 Pins)

7-Pin SIP (6 Pins)

4 Wires

no

yes

no

XXXX - Output current rating in milliamperes (mA): 350, 500, 700, 1000 or special order factory custom rating

Absolute Maximum Ratings

LED +

LED -

Ctrl

Ref

Vin+

Input Voltage, DC Model . . . . . . . . . . . . . . . . . . . . . 32V_DC

Input Voltage, AC Model . . . . . . . . . . . . . . . . . . . . . 24V_RMS

Output Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32V_DC

Control Pin Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . 10V

Reference regulator current (5V_DC) Output . . . . . . . . 20mA

3021

3023

Typical Characteristics

Vin -

Output tolerance (within speciꢀed temp. range) . . . . . . . . . 10%

Eꢁciency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95%

Input Voltage Minimum . . . . . . . 5V_DC(N), 7V_DC(E or I), 7V_RMS

Input Margin (350mA unit¹, add to LED Vf MAX). . . . . . . . 2.5V_DC,4V_RMS

Figure 1.

Bottom view Pinout of the

3021/3023 BuckPuck

Figure 2.

Eꢀciency vs. Vin

Figure 3.

Output current vs. control voltage

1 - Margin increases

with higher current units.

Speciꢀcations subject to change without notice. May, 2013 - Rev 3.1

LEDdynamics, Inc.

802.728.4533 P

802.728.3800 F

sales@LUXdrive.com

www.LUXdrive.com

TM

3021/3023 BuckPuck

Wide Range LED Power Module

DATA SHEET Page 3 of 8

Speciꢁcations

Output current, 3021-x-x-350, 3023-x-x-350 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 350mA¹

Output current, 3021-x-x-500, 3023-x-x-500 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 500mA¹

Output current, 3021-x-x-700, 3023-x-x-700 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 700mA¹

Output current, 3021-x-x-1000, 3023-x-x-1000 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1000mA¹

Control Pin, adjustment threshold . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.65 V 5%

Control Pin, shutoꢃ threshold . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.2 V 5%

Control Pin, propagation delay to output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . <15 µs

Control Pin, input impedance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.5k ohm

Reference voltage (V_in= 7V or greater) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 V_DC5%²

Optional trim pot adjustment range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40%-110%

External pot adjustment range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0%,1-100%²

Maximum ꢂash frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 kHz

Minimum strobe pulse width . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 µs

Output rise time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . <10 µs³

Output fall time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . <350 µs³

Quiescent current (no load or control pin high) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . <4.5 mA³

Operating temperature (Tcase). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -40-+80°C

Storage temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -40-+125°C

Application Information

Description

The 3021/3023 Wide Range LED Power Module is a high eꢁciency dc to dc converter which delivers a ꢀxed output

current by varying the output voltage as required to maintain the speciꢀed current . A fast response current-sensing

circuit permits the unit to be used in applications where ꢂashing or pulsing of the LEDs is required. Several options

are available allowing for use with many types of LEDs and in a variety of operating modes

Fixed Current Drive

The ꢀxed output versions of the 3021/3023 are designed to supply their rated current to one or more LED junctions.

For example, a 350 mA rated unit will drive up to six white 350mA LEDs connected in series at 24V_DC. Due to the

nature of the buck regulator, the input voltage must always be higher than the total forward voltage drop of the

LED junction(s) connected in series (2.5V for DC models, 4V for AC models). Thus, for a series string of six junctions

having an average forward drop of 3.5Veach, the required minimum input voltage will be 23.5V_DC. A standard

24V_DCpower supply is a good choice for this application.

Figures 4 through 6 show 700mA and 1000mA rated units driving multiple LEDs. Note that parallel strings of LEDs

can be driven directly with no additional circuitry required to ensure current sharing. The nature of the LEDs

themselves will provide suꢁcient current sharing if the parallel strings comprise of 3 or more junctions each.

1 - Measured with single emitter; output current drops slightly with additional series junctions to limit maximum power dissipation.

2 - When Vin > 7VDC

3 - Actual value varies greatly based on input and/or output voltages. Value shown is for V_in= 24V_DCV_OUTt=20V_DCLED load. Actual values will be smaller in most applications.

Speciꢀcations subject to change without notice. May, 2013 - Rev 3.1

LEDdynamics, Inc.

802.728.4533 P

802.728.3800 F

sales@LUXdrive.com

www.LUXdrive.com

TM

3021/3023 BuckPuck

Wide Range LED Power Module

DATA SHEET Page 4 of 8

Adjustable Current - On-Board Control - “I” Model

Where the ability to adjust the output current to an intermediate value is required, all output current ratings are

available with an on-board potentiometer. This permits the output current to be varied from approximately 40%

to 110% of the rated value. When measuring the output is required to determine a particular set point, the

following method is recommended:

Temporarily place a 0.1 ohm, 1% resistor in series with the LEDs.

Read the voltage across the 0.1 ohm resistor.

The voltage, in millivolts X 10, will equal the output current in mA.

Because there is a small, high-frequency component in the 3021/3023 output, many multi-meters may give an

incorrect reading when used in the current mode. It has been found that the method described above yields a far

more accurate measurement.

The potentiometers used for the on-board adjustable units are rated for a limited number of rotations (typically

100) and are intended for "set it and forget it" applications. Where frequent adjustments of output current are

needed, the use of units with external adjustment capabilities is recommended.

Adjustable Current - External Control - “E” Model

Figures 10 and 11 show external adjustment conꢀgurations. Both use a 5Kohm, linear taper potentiometer. In

Figure 10, the potentiometer is connected between the internal 5V_DCreference (Ref) output and the control (Ctrl)

input. When using this conꢀguration, it is important that Vin be 7V_DCor higher. Figure 11 shows the control

potentiometer being powered by an external 5V_DCsource. When using an external power source for the

potentiometer, the source ground must be common to the LED- output pin. In either conꢀguration, connect the

potentiometer such that clockwise rotation increases the resistance. Note that, because the current through the

potentiometer is less than 5mA, a low power potentiometer may be used.

External On/Oꢂ Control

Where a manual on/oꢃ control is desired, the potentiometer in Figures 10 and 11 may be replaced by a pushbutton

or toggle switch. The output current will be zero when the switch is closed. Figures 12 and 13 show external

dimming control combined with on/oꢃ control. The circuit in Figure 13 uses a 2N3906 or equivalent PNP

switching transistor.

External Pulse/Strobe Control

Figures 14 and 15 show two methods for low speed pulsing or high speed ꢂashing operation. In Figure 14, a

5V TTL/CMOS logic signal is applied directly to the control (Ctrl) input of the 3021/3023. The output current will be

zero when the control signal is high. Note that the input needs to source a minimum of 4.75V_DCinto a 1.5Kohm

input impedance. Also, as is the case with a dc control signal, the logic input ground should to be common to the

LED- output terminal.

Figure 15 shows an inverted input conꢀguration using a 2N3906 or other PNP switching transistor. In this case, a

logic high will cause the output to be "on". In either conꢀguration, the rise time of the output will be 10µsec or

less. A pulse frequency up to 10kHz may be used.

Speciꢀcations subject to change without notice. May, 2013 - Rev 3.1

LEDdynamics, Inc.

802.728.4533 P

802.728.3800 F

sales@LUXdrive.com

www.LUXdrive.com

TM

3021/3023 BuckPuck

Wide Range LED Power Module

DATA SHEET Page 5 of 8

Microprocessor Control

Figure 16 shows a typical interface for a Microchip PIC® or similar µcontroller. The reference output provides the

operating voltage for the processor (5V at up to 20mA current).

Other Control Applications

In addition to the conꢀgurations described above, the 3021/3023 may also be driven by a D to A converter. As in

the cases above, the analog control signal should have its ground common to LED-. Figure 2 shows the eꢃective

control range of the analog input signal.

Connections

In all cases, the LEDs being driven should be located as close to the 3021/3023 LED output as possible. When the

use of long leads is required, use heavier gauge wire. For strobe or pulse applications, a wire length not

exceeding 6" should be used to maintain accurate timing.

The power input wires/traces should also be kept short. Where DC input units are located more than 18" from the

source, a 220µF, 50V capacitor should be placed across the input terminals as shown in Figure 18.

For applications where the use of header pins is inconvenient, a mating connector with 6" leads is available as an

accessory, or the 3023 part number may be used, which is supplied with 6” colored leads.

3021HN - Harness for “N” type (4-wire)

3021HE - Harness for “E” & “I” type (6-wire)

3021HEP - Harness for “E” & “I” w/pot (6-wire w/pot)

Application Figures

LED+

3021/3023

V

in

LED-

LED+

3021/3023

V

in

LED-

Figure 4.

700 mA unit driving 6 High Power LEDs

(VIN > 12VDC)

Figure 5.

700mA unit driving 12 High Power LEDs

(VIN > 24VDC)

Speciꢀcations subject to change without notice. May, 2013 - Rev 3.1

LEDdynamics, Inc.

802.728.4533 P

802.728.3800 F

sales@LUXdrive.com

www.LUXdrive.com

TM

3021/3023 BuckPuck

Wide Range LED Power Module

DATA SHEET Page 6 of 8

LED+

LED-

LED+

3021/3023

V

in

LED-

Figure 6.

Figure 7.

1000mA unit driving nine High Power LEDs

at 1W each (VIN > 12VDC)

1000mA unit driving three High Power LEDs

at 3W each (VIN > 12VDC)

LED+

3021/3023

V

LED+

in

3021/3023

LED-

V

in

LED-

Figure 8.

700mA unit driving one Cree MC-E emitter

(VIN > 8VDC)

Figure 9.

700mA unit driving three High Power LEDs

at 2W each (VIN > 12VDC)

LED+

3021/3023

V

in

LED-

CTRL

REF

CTRL

5K

-

EXT 5V

SOURCE

+

CW

5K

CW

Figure 10.

External potentiometer using internal

reference

Figure 11.

External potentiometer using external voltage

source

Figure 9.

Figure 10.

Speciꢀcations subject to change without notice. May, 2013 - Rev 3.1

LEDdynamics, Inc.

External potentiometer using internal

802.728.4533 P

802.728.3800 F

External potentiometer using external voltage

reference

source

sa_*le_-s_Lu@_xeL_onU_isX_ad_rer_gi_isv_tee_re._dc_to_ram_{demark of LumiLEDs Corporation}

www.LUXdrive.com

TM

3021/3023 BuckPuck

Wide Range LED Power Module

DATA SHEET Page 7 of 8

LED+

3021/3023

V

in

LED+

LED-

3021/3023

REF

CTRL

5K

V

in

REF

CTRL

5K

CW

2N3906

5K

LO = OFF

HI = ON

Figure 12.

Figure 13.

External dimming plus ON/OFF control with

switch closure

External dimming plus ON/OFF control with

logic level input

LED+

3021/3023

V

LED+

in

3021/3023

LED-

REF

CTRL

V

in

LED-

CTRL

2N3906

5K

TTL/CMOS

COM

5K

LO = OFF

HI = ON

Figure 14.

Pulse/Strobe input 5V=OFF

Figure 15.

Pulse/Strobe input 5V=ON

LED+

3021/3023

V

in

LED+

LED-

REF

CTRL

3021/3023

V

in

0.1µf

LED-

REF

CTRL

Vcc

I/O

R1

GND

Other

I/O Lines

Figure 17.

Using resistor for ꢁxed current reduction

Output is approximately: %IOUT = R1/50

Figure 16.

Interface to PIC or other microcontroller

Figure 15.

Figure 16.

Interface to PIC or other microcontroller

Using resistor for fixed current reduction

^{Speciꢀcation}O^{s su}u^bt^jep^ctu^tot^chis^anga^ep^wp^ithr^oo^utxⁿi^om^ticea^.t^Me^ayl^,y²:⁰¹%^{3 - R}I^evO³U^.1T = R1/50

LEDdynamics, Inc.

802.728.4533 P

802.728.3800 F

sales@LUXdrive.com

www.LUXdrive.com

TM

3021/3023 BuckPuck

Wide Range LED Power Module

DATA SHEET Page 8 of 8

LED+

LED-

3021/3023

V

in

REF

CTRL

Figure 18.

Place a capacitor across the input terminals when the distance to the DC

power source is greater than 18 inches

Physical Dimensions

2.5 mm

[0.10”]

11.0 mm

[0.43”]

21.0 mm [0.83”]

19.8 mm [0.78”]

5.8 mm

[0.23”]

2.0 mm

[0.08”]

Pin Size 0.76mm [0.03”] Square

Pin Spacing 2.5mm [0.10”] OC

Recommended

clearance envelope

3023

6”- 24AWG Colored Leads

3021

23.1 mm

[0.91”]

3.0 mm

[0.12”]

3.0 mm

[0.12”]

23.1 mm

[0.91”]

Shown app^Sr^po^ex^ciꢀi^cm^atia^ont^se^sul^by^jea^ctc^tot^cu^ha^anl^ges^wiz^ite^{hout notice. May, 2013 - Rev 3.1}

LEDdynamics, Inc.

802.728.4533 P

802.728.3800 F

sales@LUXdrive.com

www.LUXdrive.com


型号：	3021-A-E
厂家：	ETC
描述：	Wide Range LED Power Module
文件：	总8页 (文件大小：445K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

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