ISSI IS31FL3194 3-Channel Fun LED Driver
ISSI IS31FL3194 3-Channel Fun LED Driver features two-dimensional auto breathing mode, pattern mode, and current level mode for RGB lighting effects. The driver has a maximum output current that can be adjusted in 4 levels (40mA maximum). The current level mode simplifies color mixing by allowing the current level of each output to be independently programmed and controlled in 256 steps.
In Pattern Mode, the timing characteristics for output current - current rising (T1), holding (T2), falling (T3), and off-time (TS, TP, T4), can be adjusted individually. This allows each output to independently maintain a pre-established pattern. This saves valuable system resources by achieving mixing color breathing or a single color breathing without requiring any additional interface activity.
The IS31FL3194 driver is available in a WCSP-8 package and operates from 2.7-5.5V over the temperature range of -40°C to +85°C
Features
- 2.7V to 5.5V supply voltage
- One group RGB/RG+W or 3 single colors LED breathing system-free pre-established pattern
- Each output has its own independent TS~T4 and own start command (update register)
- I2C interface and automatic address increment function
- Overtemperature protection
- 4-band programmable output current for each output, and each band has 256 current levels
- Selectable gamma value for automatic breathing for each output
- Each pattern has 3 pre-established colors
- -40°C to +85°C operating temperature range
Applications
- Mobile phones and other handheld devices for LEDs
- LED in home appliances
Typical Application Circuit
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Publicado: 2017-08-14
| Actualizado: 2024-03-05