LV5234V Datasheet, PDF (1/24 Pages) ON Semiconductor – 9-channel LED Driver

Ordering number : ENA1936B
LV5234V
Bi-CMOS IC
9-channel LED Driver
http://onsemi.com
Overview
The LV5234V is a 9-channel LED driver IC that is capable of switching between constant-current output and open
drain output. It enables 3-wire serial bus control (address designation)/I²C serial bus control to be set arbitrarily using
an external pin. Also possible are 9-channel LED ON/OFF control and the setting of the PWM luminance in 256 steps.
The device also has a built-in fade-in/fade-out function. Up to 32 driver ICs can be connected using the slave address
setting pins.
Function
• 9-channel output constant-current LED driver/open drain output LED driver (selected by using an external pin)
Supports separate ON/OFF setting for each LED output, high withstand voltage (VOUT<42V)
• In the constant-current mode (OUTSCT: L), the reference current is set by the value of resistor connected
to the external pin (RT1).
Built-in D/A (5 bits) for switching current level … 0.96mA to 30.7mA (RGB drive)
Constant current (IO max=50mA) for full-color LEDs × 9 channels
• In the open drain mode (OUTSCT: H), high current drive (IO max=100mA) × 9 channels
• Luminance adjustment using internal PWM control (256 steps)
• 8-bit PWM luminance dimming (0% to 99.6%)
• 3-phase PWM
• Fade-in/fade-out function (PWM control priority), supporting synchronous connection
• Supports separate fade ON/OFF for each LED output (fade time common for all channels)
• Interrupt control possible for fade function
• Selection of 3-wire/I²C serial bus control signals enabled (switching using an external pin)
Slave addressing (5 bits, connection of up to 32 driver ICs possible)
• Low current consumption
• Output malfunction protection circuits (thermal protection function, UVLO detection protection function)
SSOP30(275mil)
* I²C Bus is a trademark of Philips Corporation.
ORDERING INFORMATION
See detailed ordering and shipping information on page 24 of this data sheet.
Semiconductor Components Industries, LLC, 2014
March, 2014
30614NK/82411SY/32311SY 20110303-S00009,20110316-S00001 No.A1936-1/24