1 |
VDDIO |
A |
Internal pre_regulator — connect a 1-µF ceramic capacitor to VDDIO |
2 |
EN |
I |
Enable |
3 |
FSW |
I |
Switching-frequency selection pin. Use a resistor to set the frequency between 280 kHz to 1 MHz. |
4 |
ISET |
I |
Full-scale LED current set pin. Connecting a resistor to the pin programs the current level. |
5 |
FPO |
O |
Fault protection output to indicate fault conditions including OVP, OC, and OT. |
6, 7, 8, 10, 11, 12 |
IFB1 to IFB6 |
A |
Regulated current sink input pins |
9 |
GND |
G |
Analog ground |
13 |
RFPWM / MODE |
I |
Dimming frequency program pin with an external resistor / mode selection |
14 |
OVP |
A |
Overvoltage clamp pin / voltage feedback |
15 |
PGND |
G |
Power ground |
16 |
SW |
A |
Drain connection of the internal power FET |
17 |
NC |
— |
No connection |
18 |
FAULT |
O |
Fault pin to drive external ISO FET |
19 |
VIN |
A |
Supply input pin |
20 |
PWMIN |
I |
PWM signal input pin |
PowerPAD™ |
— |
— |
Connect to GND plane for better thermal performance |
A: Analog; G: Ground; I: Input: O: Output; P: Power |