TLD1313EL Datasheet, PDF (10/31 Pages) Infineon Technologies AG – 3 Channel High Side Current Source Basic LED Driver

5
EN Pin
The EN pin is a dual function pin:
TLD1313EL
EN Pin
Internal Supply
EN
Output Control
V _EN
Figure 3 Block Diagram EN pin
Note: The current consumption at the EN-pin I_EN needs to be added to the total device current consumption. The
total current consumption is the sum of the currents at the VS-pin I_S and the EN-pin I_EN.
5.1
EN Function
If the voltage at the pin EN is below a threshold of V_EN(off) the Basic LED Driver IC will enter Sleep mode. In this
state all internal functions are switched off, the current consumption is reduced to I_S(sleep). A voltage above V_EN(on)
at this pin enables the device after the Power on reset time t_POR.
V_S
V_EN
t
I_OUT
t_POR
t
100%
80%
t
Figure 4 Power on reset
Data Sheet
10
Rev. 1.0, 2013-08-08