LV5239TA Datasheet, PDF (9/28 Pages) ON Semiconductor – 24-channel LED Driver

Pin Functions
Pin No.
Pin Name
48
SVCC
1
VREF
2
SCLK
3
SDATA
4
SDEN
Pin function
Power supply pin
Reference output pin(5V)
Serial clock signal input pin
Serial data signal input pin
Serial enable signal input pin
LV5239TA
5
CTLSCT
Serial bus communication setting pin
When set to low: The 3-wire serial bus
signals are set as the input signals.
When set to high: The 2-wire serial bus
signals are set as the input signals.
6
OUTSCT
LED driver output type setting pin
When set to low: Constant-current output is
set for the LED driver.
When set to high: Open drain output is set
for the LED driver.
When set to middle: Constant-current output
is set for the LED driver. However, open
drain output is set for the only LED7 driver
and LED8 driver.
7
RESET
Reset signal input pin
Reset status when set to low.
Equivalent Circuit
SCLK
SDATA
SDEN
5kΩ
100kΩ
8
RT1
9
NC
10
SGND
Reference current setting resistor
connection pin.
By connecting the external register between
this pin and GND, the reference current is
generated. The pin voltage is approximately
1.22V. By changing the current level, it is
possible to change the oscillator frequency
and LED driver current value (in the
constant-current mode).
No connection
GND pin
Continued on next page.
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