CAT3614_08 Datasheet, PDF (3/13 Pages) Catalyst Semiconductor – 4-Channel 1-Wire LED Driver in 3 x 3mm Package

RECOMMENDED EN/DIM TIMING
For 3V ≤ V_IN ≤ 5.5V, over full ambient temperature range -40 to +85ºC.
Symbol Parameter
Conditions
T_SETP
T_LO
T_HI
T_OFF
T_D
T_DEC
EN/DIM setup from shutdown
EN/DIM program low time
EN/DIM program high time
EN/DIM low time to shutdown
LED current enable
LED current decrement
CAT3614
Min Typ Max Unit
10
µs
0.3
200
µs
0.3
µs
1.5
ms
40
µs
0.1
µs
T_SETP
T_HI
EN/DIM
T_D
T_LO
LED
Current
Shutdown
T_DEC
31mA _{30mA 29mA}
31mA
1mA
0mA
Figure 1. LED Dimming Timing Diagram
T_OFF
Shutdown
© Catalyst Semiconductor, Inc.
3
Characteristics subject to change without notice
Doc. No. MD-5035, Rev.B