LED Driver

KC24H-R Series

2014.02.28-A/3

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MORNSUN Guangzhou Science & Technology Co., Ltd. reserves the copyright and right of final interpretation

Constant current great power buck LED driver

RoHS

FEATURES

Efficiency up to 95%

Ultra wide range voltage input (5.5-46 VDC)

Drive current:300/350/500/600/700mA

Output power：10/12/18/21/25W

Low ripple & noise(<100mV)

With large capacitive loads(1000μF)

PWM dimming & analogue dimming

Continuous short circuit protection

KC24H-R series is a high-power LED driver design for the step-down constant current source. With high efficiency, wide input voltage range,

high-temperature environment, functional and so on. Contains a PWM dimming, analog dimming and remote shutdown capabilities.

They can be widely used in Backlight and 12V, 24V, 36V automotive lighting, landscape lighting, special lighting controls, commercial

lighting, street lighting, home lighting and other lighting systems.

Selection Guide

Model

Input

Output

Efficiency

(%, Typ),

Full Load

Max.

Capacitive

Load(uF)

Input Voltage

(VDC)

Input Current (mA)

(Typ.)(5LEDs)

Output Voltage

(VDC)

Output Current

(mA)

KC24H-300R(X1/X2/X3)

24(5.5-48)

Nominal

(range)

237

3.3-36

0-300

95

1000

KC24H-350R(X1/X2/X3)

276

0-350

KC24H-500R(X1/X2/X3)

395

0-500

KC24H-600R(X1/X2/X3)

474

0-600

KC24H-700R(X1/X2/X3)

553

0-700

Notes:

1. For the product model without a suffix such as KC24H-300R, this product is a 4-pin product without the functions of analogue dimming and PWM dimming.

2. For the product model with a suffix X1 such as KC24H-300RX1, this product is a 5-pin product only with the function of analogue dimming.

3. For the product model with a suffix X2such asKC24H-300R X2, this product is a 5-pin product only with the function of PWM dimming.

4.For the product model with a suffix X3such asKC24H-300R X3, this product is a 6-pin product with the functions of analogue dimming and PWM dimming.

Input Specifications

Item

Operating Conditions

Min.

Typ.

Max.

Unit

Input Voltage Limit

≤10 seconds

5--

55

VDC

Recommended Input Voltage

5.5

24

46

Min. Input-output Voltage Drop

Input voltage range

2

--

4

Internal Power Dissipation

Vin=24V, 5LEDs

--

--

0.7

W

Reverse Polarity Input

Forbid

Input Filter

Capacitor Filter

Output Specifications

Item

Operating Conditions

Min.

Typ.

Max.

Unit

Output Power

Io:300mA

--

--

10.8

W

Io:350mA

--

--

12.6

Io:500mA

--

--

18

Io:600mA

--

--

21.6

Io:700mA

--

--

25.2

Output Current Accuracy

Io:300-600mA

--

± 3

±5

%

Io:700mA

--

± 5

±7

Output Current Stability

Vin=46V，Vo=3.3V~36V

--

±3

±5

Temperature Drift Coefficient

-40 °C~+71 °C

--

--

± 0.015

Ripple & Noise*

20MHz bandwidth(Vin=46V, 1~ 10 LEDs)

--

--

100

mVp-p

Over-temperature Protection

Self-recovery after cooling

Output Short Circuit Protection

Continuous, self-recovery