IS32FL3209
IS32FL3209 is 18-CHANNELS LED DRIVER manufactured by Lumissil.
DESCRIPTION
IS32FL3209 is prised of 18 constant current channels each with independent PWM control, designed for driving LEDs, PWM frequency can be 29k Hz (default) or 4k Hz. The output current of each channel can be set at up to 78m A (Max.) by an external resistor and independently scaled by a factor of 1, 23/24, 22/24, 21/22, 20/24, 19/24, 18/24, 16/24, 14/24, 12/24, 11/24, 9/24 and 7/24. The average LED current of each channel can be changed in 256 steps by changing the PWM duty cycle through an I2C interface.
The chip can be turned off by pulling the SDB pin low or by using the software shutdown feature to reduce power consumption.
IS32FL3209 is available in WFQFN-28 (5mm × 5mm) and e TSSOP-28 packages. It operates from 2.7V to 5.5V over the temperature range of -40°C to +125°C.
FEATURES
- 2.7V to 5.5V supply
- Each channel output current up to 78m A
- I2C interface, automatic address increment function
- Four selectable I2C addresses
- Internal reset register
- Modulate LED brightness with 256 steps PWM
- Each channel can be controlled independently
- Each channel can be scaled independently by 1,
23/24, 22/24, 21/22, 20/24, 19/24, 18/24, 16/24, 14/24, 12/24, 11/24, 9/24 and 7/24
- PWM frequency selectable
- 29k Hz (default)
- 4k Hz
- -40°C to +125°C temperature range
- WFQFN-28 (5mm × 5mm) and e TSSOP-28 packages
- Ro HS & Halogen-Free pliance
- TSCA pliance
- AEC-Q100 Qualified with Temperature Grade 1: -40°C to 125°C
APPLICATIONS
- Auto LED display panel
TYPICAL APPLICATION CIRCUIT
- Note 1
VCC = VBattery
1F
0.1 F
- Note 2 VIH
4.7k 4.7k
OUT1 OUT2 OUT3
Micro Controller
100k
SDA SCL
0.1 F SDB IS32FL3209
OUT16
- Note 3
RISET...
