LV5231CS Datasheet, PDF (1/29 Pages) Sanyo Semicon Device – LED Driver

Ordering number : ENA1970
LV5231CS
Bi-CMOS IC
LED Driver
Overview
The LV5231CS is 16ch LED driver IC for the cell phones with built-in charge pump circuit.
Features
• LED driver ×16 (3-color ×2, MAIN, Flash) and on-chip switching regulator control circuit.
• Each LED driver current level can be adjusted independently over the serial bus.
• Support strobe mode of LED for flash.
• Gradation function (3-color LEDs)
• Ring tone signal and 3-color LEDs synchronization function.
• Miniature package
Function
• PWM switching regulator control circuit
Built-in Triangular wave oscillator, Standard voltage, PWM comparator, Driver, DTC and short-circuit protection
circuit.
The output interception circuit at the overload is a timer latch method.
• LED driver
LED driver for the main liquid crystal backlight ×6
LED current can be switched indecently in 6-bit units (0.4 to 25.6mA)
External current value control pin is provided.
As for MLED6, a possible independent control (0.6 to 19.2mA)
3-colorLEDs driver ×2
LED current can be switched indecently in 5-bit units (0.5 to 16mA)
Ring tone synchronization function (forced activation with SCTL: High)
It corresponds to the information mode. RGBLED1 only, Built-in low current consumption internal oscillator
Gradation function
Twice current mode (1 to 32mA) RGBLED2 only
LED driver for flash ×4
LED current can be switched indecently in 4-bit units (2 to 32mA)
At the strobe mode (6 to 96mA) (FCTL: High)
Flash mode 1sec limiter (It is an automatic migration in a normal mode after about 1sec at continuousness High of
FCTL).
As for FLED3 and FLED4, a possible independent control.
Any and all SANYO Semiconductor Co.,Ltd. products described or contained herein are, with regard to
"standard application", intended for the use as general electronics equipment (home appliances, AV equipment,
communication device, office equipment, industrial equipment etc.). The products mentioned herein shall not be
intended for use for any "special application" (medical equipment whose purpose is to sustain life, aerospace
instrument, nuclear control device, burning appliances, transportation machine, traffic signal system, safety
equipment etc.) that shall require extremely high level of reliability and can directly threaten human lives in case
of failure or malfunction of the product or may cause harm to human bodies, nor shall they grant any guarantee
thereof. If you should intend to use our products for applications outside the standard applications of our
customer who is considering such use and/or outside the scope of our intended standard applications, please
consult with us prior to the intended use. If there is no consultation or inquiry before the intended use, our
customer shall be solely responsible for the use.
Specifications of any and all SANYO Semiconductor Co.,Ltd. products described or contained herein stipulate
the performance, characteristics, and functions of the described products in the independent state, and are not
guarantees of the performance, characteristics, and functions of the described products as mounted in the
customer's products or equipment. To verify symptoms and states that cannot be evaluated in an independent
device, the customer should always evaluate and test devices mounted in the customer's products or
equipment.
82411 SY 20090626-S00001 No.A1970-1/29