TTY5003

2015/09/07

Page 3 of 7

Version：1.1

Descriptions of work mode：



TTY5003 has three LED switching functions：

1. Single light adjustment control mode（LED1）：（option select = neglect）

The order of output is：

Off  Full Brightness（100%） Half brightness（50%）

Dimmed（10%）

2. Single light double color control mode（with color light 1（LED1）and color light 2

（

LED2））：（option selsct = High or Open）

The order of output is：

Off  Color light 1 full brightness  Color light 2 full brightness

Color lights 1 and 2 half brightness

3. Double light switching control mode（left light（LED1）and right light（LED2））：

（

option selsct = Low）

The order of output is：

Off  Left light full brightness  Right light full brightness

Both left and right lights full brightness



Definition of switching LED output by power switch：

1. When the power is turned off for less than 0.1 second, the switching is ineffective and the

output remains at the original level.

2. When the power off time is with 0.1 second and 2 seconds, the switching is effective and

the setting steps to the next level.

3. If the power off time (or outage) is longer than 2.0 seconds, the setting returns to the first

level.

4. Dissipating current in each mode.

VDD=4.5V, ambient temperature is 25℃ LED output load 47K



Level

Single light

adjustment

control mode

PWM

Frequency

Single light

double colors

control mode

PWM

Frequency

Double light

switching

control mode

PWM

Frequency

1

125uA

All on

125uA

All on

125uA

All on

2

70uA

1.6KHz

125uA

All on

125uA

All on

3

30uA

1.6KHz

700uA

1KHz

240uA

All on

VDD=4.5V, ambient temperature is 25℃ LED output no load

Level

Single light

adjustment

control mode

PWM

Frequency

Single light

double colors

control mode

PWM

Frequency

Double light

switching

control mode

PWM

Frequency

1

15uA

All on

15uA

All on

15uA

All on

2

15uA

1.6KHz

15uA

All on

15uA

All on

3

15uA

1.6KHz

600uA

1KHz

15uA

All on