Series AMLDL-Z Up to 1000mA LED Driver

(1)

Series AMLDL-Z

Up to 1000mA | LED Driver

www.aimtec.com Tel: +1 514 620 2722 Toll free: + 1 888 9 AIMTEC

(924 6832)

F 051e R9.I 1 of 14 North America only

FEATURES:

Models

Single output

Model Input Voltage

(V)

Output Voltage

(V)

Maximum Rated Current (mA)

Capacitive Max Load (uF)

Efficiency

(%)

Package Type

AMLDL-3030Z 7-30 2-28 300 47 95 DIP14

AMLDL-3035Z 7-30 2-28 350 47 95 DIP14

AMLDL-3050Z 7-30 2-28 500 47 95 DIP16

AMLDL-3060Z 7-30 2-28 600 47 95 DIP16

AMLDL-3070Z 7-30 2-28 700 47 95 DIP16

AMLDL-30100Z 7-30 2-28 1000 47 95 DIP16

NOTE: All specifications in this datasheet are measured at an ambient temperature of 25°C, humidity<75%, nominal input voltage and at rated output load unless otherwise specified.

Input Specifications

Parameters Nominal Typical Maximum Units

Voltage range 24 7-30 VDC

Filter Capacitor

Absolute Maximum Rating 40 VDC

Peak Input Voltage time 500 ms

DC/DC ON (Leave open if not used) ON –Open or 0.3V<Vadj<1.25

DC/DC OFF OFF(shutdown) – Vadj<0.15

Maximum Remote pin drive current Vadj = 1.25V 1 mA

Quiescent Current in Shutdown mode Vin = 30V, Vadj <0.15 0.25 mA

On/Off Control (Digital Control) Max PWM Frequency 1KHz

Minimum Switch ON/OFF time 200 ns

On/Off Control (Analog Dimming Control)

(Leave open if not used) Input voltage range 0.3-1.25 VDC

Drive with DC Voltage 0.3V < VADJ<1.25V to adjust output current from 25% to 100%

Output current adjustment* Vin-Vout<20 %

Control Voltage Range limits ON – 0.2 – 0.3V (Vadj rise)

OFF – 0.15-0.25V (Vadj fall)

Maximum Analog pin drive current Vadj = 1.25V 25-100 1 mA

Output Specifications

Parameters Conditions Typical Maximum Units

Current accuracy ±6 %

Output Voltage range V input = 30V 2-28 VDC

Output current Vin – Vout >1.5V to 3V 300 mA

Short Circuit protection Regulated at the rated current for each model

Output no load Protection Continuously

Max load capacitance 47 µF

Temperature coefficient Ta = -40 to +85°C ±0.05 %/^oC

Ripple & Noise 20MHz Bandwidth 250 mV p-p

General Specifications

Parameters Conditions Typical Maximum Units

Switching frequency 100% load 40 - 380 KHz

Operating temperature -40 to +85 ^oC

Storage temperature -40 to +125 ^oC

• Step Down DC/DC LED driver • Operating Temperature range -40ºC to +85ºC

• Constant current output • Open and Short LED Protection

• Wide (4:1) input voltage range • PWM/Digital and Analog Voltage dimming

• High efficiency up to 95% • Remote ON/OFF Control

Click on Series name for product info on aimtec.com

(2)

Series AMLDL-Z

Up to 1000mA | LED Driver

(924 6832)

General Specifications (continued)

Parameters Conditions Typical Maximum Units

Maximum case temperature 100 ^oC

Thermal Impedance Free air convection +40 ^oC/W

Cooling Free air convection

Humidity 95 % RH

Case material Non-Conductive Black Plastic (UL94-V0 rated)

Weight 6.2 (DIP 16) 2.6 (DIP14) g

Dimensions (L x W x H) DIP 14 0.80 x 0.40 x 0.27 inches 20.32 x 10.16 x 6.88 mm DIP 16 0.80 x 0.40 x 0.40 inches 23.37 x 13.97 x 10.16 mm

MTBF > 500 000hrs (MIL-HDBK-217 F at +25^oC)

Maximum Soldering Temperature 1.5mm from case for 10sec. 260 ^oC

NOTES:

1.Reversed polarity at the input power will damage the driver. The input ground must not be connected to the negative output.

2.Leave the pin VADJ opened if not used , grounding VADJ will shut the driver off, connecting VADJ to +Vin will damage the driver.

3.Maximum output open voltage is equal to input voltage

Safety Specifications

Parameters

Agency approvals CE

Standards

EN 55015 (CISPR22)

IEC 61000-4-2 (Perf. Criteria A) IEC 61000-4-3 (Perf. Criteria A) IEC 61000-4-4 (Perf. Criteria A) IEC 61000-4-6 (Perf. Criteria A) IEC 61000-4-8 (Perf. Criteria A)

Pin Out Specifications

DIP 14 DIP 16

Pin Single

1 - V Input - DC Supply

2 Vadj PWM/ON/OFF or not used

7 - V Output LED Cathode connection 8 + V Output LED Anode connection

14 + V Input + DC Supply

Derating

Pin Single

3 Vadj PWM/ON/OFF or not used

7 - V Output LED Cathode connection 8 - V Output LED Cathode connection 9 + V Output LED Anode connection 10 + V Output LED Anode connection

Free Air Convection

- 40 - 20 0 20 40 60 80 100

100 80

60 40

20 0

Safe Operating Area

Output Power (%)

85

Ambient Temperature º C

AMLDL-301000Z

71

AMLDL-3030Z AMLDL-3035Z AMLDL-3050Z AMLDL-3060Z AMLDL-3070Z

(3)

Series AMLDL-Z

Up to 1000mA | LED Driver

(924 6832)

Dimensions

DIP 14: AMLDL-3030Z & AMLDL3035Z DIP 16: AMLDL-3050Z, AMLDL-3060Z, AMLDL- 3070Z, AMLDL-30100Z

Application circuit examples:

AMLDL-Z -Vin

+ 1^st LED

Last LED +Vout

1

Analogue DIM PWM Dim/ON/OFF

-Vout

AMLDL-Z -Vin

+

1^st LED

Last LED +Vout

1

-Vout

1

17.78 (0.70)

14.00 (0.55)

(0.10)2.54

Printed Face

10.16 (0.40) 3.05 (0.12)

(0.02)0.50

10.16 (0.40) 23.40

(0.92)

2 7 8

16

1 3

15 10 9

Bottom View

(0.11)2.81

(0.02)0.50

1.92 (0.08) 15.24

(0.60)

10.16 (0.40)

(0.10)2.54

Printed Face

6.88 (0.27) 3.05 (0.12)

(0.02)0.50

5.08 (0.20) 20.32

(0.80)

2 7

14 8 1

Bottom View

AMLDL-Z +Vin

-Vin +

VADJ

1

^st

LED +Vout

1

Analogue DIM PWM Dim/ON/OFF

-Vout AC In

AC In to 21Vac 5Vac

Last LED 0.1uF -

optional

100uF to 330uF

(4)

Series AMLDL-Z

Up to 1000mA | LED Driver

(924 6832)

Output Current Adjustment by External DC Control Voltage:

Resistive Dimming Control

A simplified dimming control can be achieved using a variable resistor connected between VADJ and GND. Capacitor CADJ is optional, it is installed to limit AC mains interference and high frequency noise. The recommended value of CADJ is 0.22µF.

Ioutnom= Iout x Radj Radj + 200K The nominal output current is given by:

NOTE: Typical error is ±10% with resistive dimming control

Model Number X

AMLDL-3030Z 0.327 AMLDL-3035Z 0.280 AMLDL-3050Z 0.197 AMLDL-3060Z 0.165 AMLDL-3070Z 0.1388 AMLDL-30100Z 0.095

AMLDL-Z -Vin

VADJ 1^st LED

Last LED +Vout

1

-Vout 0.3 -1.25V

GND

AMLDL-Z -Vin

VADJ +Vout 1^st LED

1

-Vout +Vin

1 TL431 10K 10K 10K

VADJ = R2

R1 + R2 X Vctrl

AMLDL-Z -Vin

VADJ +Vout 1^st LED

1

-Vout +5v

10K 30K

R2 R1 Vctrl

AMLDL-Z -Vin

VADJ +Vout 1^st LED

1

-Vout RADJ

CADJ

The nominal output current is given by:

0.08 x Vadj

X

Iout ˜

(5)

Series AMLDL-Z

Up to 1000mA | LED Driver

(924 6832)

Output Current Adjustment by PWM Control:

Driving VADJ Directly

A Pulse Width Modulated (PWM) signal with a duty cycle of DPWM can be applied directly to VADJ pin as shown below.

Model Number X AMLDL-3030Z 0.327 AMLDL-3035Z 0.280 AMLDL-3050Z 0.197 AMLDL-3060Z 0.165 AMLDL-3070Z 0.1388 AMLDL-30100Z 0.095

Driving VADJ Via Open Collector Transistor

The VADJ can also be driven via an open collector transistor as shown below.

The diode and resistor serve to suppress any possible high amplitude negative voltage spikes to the VADJ input resulting from the collector to emitter capacitance of the transistor. Any negative voltage spikes will cause errors in output current and/or unstable driver operation.

Driving the VADJ from a Microcontroller

The VADJ can be driven from an open drain output of a microcontroller as shown below. The diode and resistor serve to suppress any possible high amplitude negative voltage spikes to the VADJ input resulting from the drain to source capacitance of the FET. Any negative voltage spikes will cause errors in output current and/or unstable driver operation.

AMLDL-Z -Vin

VADJ +Vout 1^st LED

1

-Vout PWM

0V 1.25V

GND

Last LED

The output current is given by:

0.1 x DPWM

Iout ˜ X [for 0<DPWM<1]

AMLDL-Z -Vin

VADJ 1^st LED

+Vout

1

-Vout PWM

0V

GND

1

Last LED

1.25V 10K

AMLDL-Z -Vin

VADJ 1^st LED

+Vout

1

-Vout MCU

GND

1

10K Last LED

(6)

Series AMLDL-Z

Up to 1000mA | LED Driver

(924 6832)

Output Current Adjustment by PWM Control (Dimming):

A PWM signal must have a frequency of greater than 100Hz to prevent any visible flicker.

Output Current Adjustment by PWM Control (Flash):

Recommended Class B EMI Filter:

Model Number Inductor Value (µH)

AMLDL-3030Z 68

AMLDL-3035Z 68

AMLDL-3050Z 27

AMLDL-3060Z 27

AMLDL-3070Z 27

AMLDL-30100Z 27

Discharge

Vcc Reset

Out

CRT_V GND

NE 555 Trigger Threshold 7

8 4

3

5 1

2 6 +

+ +

- - 10uF -

35V 10uF

16V AMSR-7805-Z

+Vin

-Vin

1

1N4148

+ - 100KVR

470

+ -

1

10K

1N4148

2SD11782K PMW

AMLDL-Z Pin 2 (VADJ)

AMLDL-Z Pin 1 210

100nF

100nF 100nF

AMLDL-Z +Vin

-Vin

VADJ

1^st LED

Last LED +Vout

1

-Vout +10uF

- L

- +

Discharge

Vcc Reset

Out

CRT_V GND

NE 555 Trigger Threshold 7

8 4

3

5 1

2 6 +

+ +

- -

- 100nF 10uF

16V AMSR-7805-Z

+Vin

-Vin

+ -

1

10K

1N4148

2SD11782K PMW

AMLDL-Z Pin 2 (VADJ)

AMLDL-Z Pin 1 100KVR

2K

210 10uF35V

100nF

100nF 10uF16V

(7)

Series AMLDL-Z

Up to 1000mA | LED Driver

(924 6832)

Thermal Feedback Circuit

The selection of components for the thermal feedback circuit is depends on the choice of R2 and R3 and the effectiveness of the LED heatsink. To optimize the LED brightness control at high temperatures, the LEDs must have a sufficient thermal extraction path, if not the reduction in drive current will not be optimal.

The thermal control threshold points are set by adjusting R2. Three values (33K, 22K, and 10K) were tested. These values were chosen to provide thermal break points of approximately 25ºC, 40ºC, and 60ºC.

Note, that the LED drive current will not continually dim to zero – the thermal controls applying DC control to that VADJ pin has a dimming ratio from maximum current of approximately 5:1.

Once the reduced DC level drops below the shutdown threshold of around 200mV, the LED drive current will fall to zero and the LEDs will be off.

The slope of the current reduction is determined by the beta value of the thermistor. The larger the Beta value the sharper will be the resultant current control response. The slope of the current reduction is also affected by Q1’s base emitter voltage variation with temperature.

AMLDL-Z -Vin

VADJ 1^st LED

+Vout

1

-Vout

GND

1

10K

Last LED Q1

1

4.7KR1

10KR2

10KR3 Thermistor

B 3900 BZX284C6V2

+Vin

Thermally Connected

(8)

Series AMLDL-Z

Up to 1000mA | LED Driver

(924 6832)

Output Current Adjustment By External DC Control Voltage:

AMLDL-Z -Vin

VADJ1.25V 1^st LED

+Vout

1

-Vout

GND

1

6.2K

Last LED 1N4148

10K

AMLDL-Z -Vin

VADJ1.25V 1^st LED

+Vout

1

-Vout

GND

1

6.2K

Last LED 1N4148

10K

AMLDL-Z -Vin

VADJ1.25V 1^st LED

+Vout

1

-Vout

GND

1

6.2K

Last LED 1N4148

10K

AMLDL-Z -Vin

VADJ1.25V 1^st LED

+Vout

1

-Vout

GND

1

6.2K

Last LED 1N4148

10K

AMLDL-Z -Vin

VADJ1.25V 1^st LED

+Vout

1

-Vout

GND

1

6.2K

Last LED 1N4148

10K

AMLDL-Z -Vin

VADJ1.25V 1^st LED

+Vout

1

-Vout

GND

1

6.2K

Last LED 1N4148

10K OUT: 0 ~ 2.5V

+5V ~ +Vin

1 TL431 10K

4.7K

GND

(9)

Series AMLDL-Z

Up to 1000mA | LED Driver

(924 6832)

Typical Characteristics:

AMLDL-3030Z

Efficiency vs Vin

( Forward Voltage = 3.5V per LED)

70 75 80 85 90 95 100

7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 Vin (V)

Efficiency (%)

1 LED 2 LED

3 LED

4 LED 5 LED 6 LED 7 LED

25 50 75 100 125 150 175 200 225 250 275 300 325 350 375 400

7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30

Vin (V)

Frequency (KHz)

Operating Frequency vs Input Voltage (Forward Voltage = 3.5V per LED)

1 LED 2 LED

3 LED

4 LED 5 LED

6 LED 7 LED

Output Current Vs V

^ADJ

0 25 50 75 100 125 150 175 200 225 250 275 300 325

0 0.25 0.35 0.45 0.55 0.65 0.75 0.85 0.95 1.05 1.15 1.25 1.3 1.35 VADJ (V)

ILED (mA)

(10)

Series AMLDL-Z

Up to 1000mA | LED Driver

(924 6832)

Typical Characteristics: AMLDL-3035Z

1 LED

25 50 75 100 125 150 175 200 225 250 275 300 325 350 375

7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30

Vin (V)

Frequency (KHz)

Operating Frequency vs Input Voltage (Forward Voltage = 3.5V per LED)

1 LED

2 LED 3 LED

4 LED 5 LED

6 LED 7 LED

Output Current Vs V

ADJ

0 25 50 75 100 125 150 175 200 225 250 275 300 325 350 375

0 0.25 0.35 0.45 0.55 0.65 0.75 0.85 0.95 1.05 1.15 1.25 1.3 1.35 VADJ (V)

ILED (mA)

Vin (V) 1 LED

2 LED

3 LED 4 LED

5 LED 6 LED 7 LED

(Forward Voltage = 3.5V per LED)

70.00 75.00 80.00 85.00 90.00 95.00

7 8 9 101112131415161718192021222324252627282930 Efficiency (%)

(11)

Series AMLDL-Z

Up to 1000mA | LED Driver

(924 6832)

Typical Characteristics: AMLDL-3050Z

1 LED

70.00%

75.00%

80.00%

85.00%

90.00%

95.00%

100.00%

7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30

Vin (V) Efficiency (%) Efficiency vs Vin

2 LED

1LED

3 LED 4 LED 5 LED 6 LED 7 LED

25 50 75 100 125 150 175 200 225 250 275 300 325 350

7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 Vin (V)

Frequency (KHz) Operating Frequency vs Input Voltage (Forward Voltage = 3.5V per LED)

1 LED 2 LED

3 LED 4 LED

5 LED

6 LED 7 LED

Output Current Vs V

^ADJ

0 100 200 300 400 500 600

0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 1.1 1.2 1.3

V^ADJ (V)

ILED (mA)

(12)

Series AMLDL-Z

Up to 1000mA | LED Driver

(924 6832)

Typical Characteristics: AMLDL-3060Z

0 25 50 75 100 125 150 175 200 225 250 275 300 325

7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 Vin (V)

Frequency (KHz)

Operating Frequency vs Input Voltage (Forward Voltage = 3.5V per LED)

1 LED 2 LED

3 LED 4 LED

5 LED

6 LED 7 LED

Output Current Vs V

ADJ

0 100 200 300 400 500 600 700

0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 1.1 1.2 1.3

VADJ (V)

ILED (mA)

70%

75%

80%

85%

90%

95%

100%

7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30

Vin (V) Efficiency (%) Efficiency vs Vin

1 LED 2 LED

(13)

Series AMLDL-Z

Up to 1000mA | LED Driver

(924 6832)

Typical Characteristics: AMLDL-3070Z

25 50 75 100 125 150 175 200 225 250 275 300 325 350

7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 Vin (V)

Frequency (KHz) Operating Frequency vs Input (Forward Voltage = 3.5V per LED))

1 LED 2 LED

3 LED 4 LED

5 LED 6 LED

7 LED

Output Current Vs V

^ADJ

0 100 200 300 400 500 600 700

0.05 0.15 0.25 0.35 0.45 0.55 0.65 0.75 0.85 0.95 1.05 1.15 1.25 VADJ (V)

ILED (mA)

70%

75%

80%

85%

90%

95%

100%

7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30

Vin (V) Efficiency (%)

1 LED 2 LED

(14)

Series AMLDL-Z

Up to 1000mA | LED Driver

(924 6832)

Typical Characteristics: AMLD-30100Z

NOTE: 1. Datasheets are updated as needed and as such, specifications are subject to change without notice. Once printed or downloaded, datasheets are no longer controlled by Aimtec; refer to www.aimtec.com for the most current product specifications. 2. Product labels shown, including safety agency certifications on labels, may vary based on the date manufactured. 3. Mechanical drawings and specifications are for reference only. 4. All specifications are measured at an ambient temperature of 25°C, humidity<75%, nominal input voltage and at rated output load unless otherwise specified. 5. Aimtec may not have conducted destructive testing or chemical analysis on all internal components and chemicals at the time of publishing this document. CAS numbers and other limited information are considered proprietary and may not be available for release. 6. This product is not designed for use in critical life support systems, equipment used in hazardous environments, nuclear control systems or other such applications which necessitate specific safety and regulatory standards other the ones listed in this datasheet. 7. Warranty is in accordance with Aimtec’s standard Terms of Sale available at www.aimtec.com.

70%

75%

80%

85%

90%

95%

100%

7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 Vin (V)

Efficiency (%)

Efficiency vs Vin (Forward Voltage = 3.5V per LED)

1 LED 2 LED

25 50 75 100 125 150 175 200 225 250 275 300

7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 Vin (V)

Frequency (KHz) Operating Frequency vs Input Voltage (Forward Voltage = 3.5V per LED)

7 LED 5 LED

3 LED 1 LED

2 LED 4 LED 6 LED

Output Current Vs V

ADJ

0 100 200 300 400 500 600 700 800 900 1000 1100

0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 1.1 1.2 1.3 VADJ (V)

ILED (mA)