
LV5217GP
Pin Functions
Pin No.
Symbol
Description
Equivalent circuit
4
LEDON
Control inputs for the three external colored LEDs.
When an RSW, GSW, or BSW bit in the serial data
VCC
VDD
is set to 1, the corresponding LED will be on when
the voltage applied to the corresponding pin is high,
and off when the voltage applied is low.
LEDON
10k Ω
GND
8
9
SDAI
SCLI
I 2 C signal inputs
VCC
VDD
Each input
10k Ω
GND
3
RT
Reference current setting resistor connection.
A reference current is created by connecting an
VCC
external resistor between this pin and ground. The
pin voltage is roughly 1.2V. The LED driver current
can be changed by changing this current value.
RT
35k Ω
30pF
10k Ω
GND
14
15
RLED
GLED
Driver outputs for the three color LEDs.
Feedback is applied to control the current flowing in
16
BLED
the output transistors to be the set value. Each of
the driver output current levels can be set
RLED
VCC
independently with the serial data.
5 Ω
GND
Continued on next page.
No.A0833-4/12