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1. Features

• PWM Dimmer Controller

• 730 Hz for flicker free operation

• Potentiometer input

• Dual button and single button dimming

• Programmable power-on value

• Programmable minimum value

• Logarithmic dimming

• Minimal external circuitry

• 5 V supply (chip)

• 5.5 V to 40 V supply (module)

• Max. 4 A PWM output (module)

1.1 Variants

LED-Warrior10 is available in DIL8, SOIC8

packages, and as a module.

1.2 LW10-01MOD

The LW10-01MOD is a ready to use module that

provides a PWM signal to control a LED driver

and a power output to directly supply constant

voltage LEDs.

1.3 Custom variants

Custom variants are possible for the chips as well

as for the modules.

2. Functional overview

LED-Warrior10 is a dimmer controller for LED

applications. It generates a PWM signal to either

control a LED driver or to directly supply constant

voltage LED modules.

The LED brightness can be controlled either by a

potentiometer, two buttons, or a single button. A

power-on value may be set if the LED should

always switch on to a certain brightness level when

power is applied.

3. Pin Descriptions (Chip SOIC-8 or DIL-8)

Vcc

5 V supply voltage positive input.

GND

Supply voltage negative input.

PWM

730 Hz PWM signal output, positive logic,

high = LED power on.

Duty cycle 0.1% to 100%, constant low for off,

constant high for maximum.

CMOS level output.

/PWM

Inverted PWM signal, negative logic,

high = LED power off.

Duty cycle 0.1% to 100%, constant high for off,

constant low for maximum.

CMOS level output.

Dim

Input for single button dimming. Connect a switch

closing to GND.

Internal pull up resistor.

Input for dual button dimming to increase

brightness. Connect a switch closing to GND.

Internal pull up resistor.

Down

Input for dual button dimming to decrease

brightness. Connect a switch closing to GND.

Internal pull up resistor.

Pot_In

Input for center tap of a potentiometer. Connect the

two ends of the potentiometer to GND and Vcc.

LED-Power will be switched off when the center

tap is close to GND and go to full 100% when

close to Vcc. Tying the input to GND will disable

the brightness control via the potentiometer and

allow button inputs to take over.

Potentiometers should be linear and in the range of

1 kΩ to 200 kΩ . Small potentiometer values ge-

nerate higher standby current.

V1.0.1 January 4th 2016

PWM Dimmer Controller

Summary of content (7 pages)

PAGE 1
LED-Warrior10 PWM Dimmer Controller Code Mercenaries 1. Features • PWM Dimmer Controller • 730 Hz for flicker free operation • Potentiometer input • Dual button and single button dimming • Programmable power-on value • Programmable minimum value • Logarithmic dimming • Minimal external circuitry • 5 V supply (chip) • 5.5 V to 40 V supply (module) • Max. 4 A PWM output (module) Vcc 5 V supply voltage positive input. 1.1 Variants LED-Warrior10 is available in DIL8, SOIC8 packages, and as a module.
PAGE 2
LED-Warrior10 3.1 Mechanical dimensions (LW10-01MOD) Code Mercenaries Out PWM power output. Provides a chopped low side signal to directly drive constant voltage LED assemblies. Connect the kathode end of the LEDs here and the anode to the positive power supply. May be used as an inverted PWM output to control a LED driver. Up to 4 A Open drain output with 4k7 pull up to +5V. Pot Input for center tap of a potentiometer. Connect the two ends of the potentiometer to GND and Vcc.
PAGE 3
LED-Warrior10 Code Mercenaries 4.2 Dimming by dual button Two switch up/down dimming sets the output to last on level on a short press on Up and off on a short press on Down. Holding Up results in dimming up and holding Down dims down. 4.3 Setting power on value The current lamp power value may be stored as the power-on value. The next time power is applied LW10 will directly go to the stored power value.
PAGE 4
LED-Warrior10 Code Mercenaries 5. Absolute maximum ratings (Chip) Supply voltage (Vcc relative to GND): ......................................................................... -0.5V to +6V Input voltage into any pin (relative to GND): ......................................... GND - 0.5V to Vcc + 0.5V Input current into any pin: ...................................................................................... -25mA to +50mA Storage temperature: .......................................................
PAGE 5
LED-Warrior10 Code Mercenaries 6. Application circuit V1.0.
PAGE 6
LED-Warrior10 Code Mercenaries 7. Package dimensions DIL 8 7.1 Package dimensions SOIC8 V1.0.
PAGE 7
Code Mercenaries LED-Warrior10 8. Ordering information Partname LED-Warrior10-S LED-Warrior10-P LED-Warrior10-01MOD Order Code LW10-S LW10-P LW10-01MOD Package SOIC-8 DIL 8 Module MOQ 97 1 1 Description PWM dimmer controller chip PWM dimmer controller chip PWM dimmer controller module The chips and modules listed here are standard products. Customized chips and modules are available on request. Legal Stuff This document Mercenaries. 8.