cat4134 Catalyst Semiconductor, cat4134 Datasheet - Page 10

• Manufacturer Part Number: cat4134
• Description: 500ma Dual Channel Movie/flash Led Driver
• Manufacturer: Catalyst Semiconductor

CAT4134
TYPICAL APPLICATIONS
The CAT4134 can drive one or two strings of 2 to 3
LEDs in series resulting in combinations of 2, 3, 4, 6
LEDs.
The resistor ratio R1/R2 sets the maximum VOUT
during an open-LED fault condition and provides the
overvoltage protection.
Doc. No. MD-5021 Rev. B
2 LED Application
4 LED Application
10
For applications with 2 LEDs in series and VOUT
at 10V, the ratio R1/R2 is 7.
For applications with 3 LEDs in series and VOUT
at 13.5V, the ratio R1/R2 is 10.
3 LED Application
6 LED Application
Characteristics subject to change without notice.
© Catalyst Semiconductor, Inc.
MAX
MAX