TLD5098EL Datasheet, PDF (17/39 Pages) Infineon Technologies AG – DC/DC Boost, Buck-Boost, SEPIC controller

TLD5098EL
Enable and Dimming Function
V_EN/PWMI
V_EN/PWMI,ON
V_EN/PWMI,OFF
V_IVCC
V_IVCC,ON
t_EN,START
V_PWMO
T_PWMI
t_PWMI,H
t_EN,OFF,DEL
t
V_IVCC,RTH
t
V_SWO
T_FREQ =
1
f_FREQ
t
t
Power ON
Normal
SWO ON
PWMO ON
Dim
Normal
PWMO OFF SWO ON
SWO OFF PWMO ON
Dim
PWMO OFF
SWO OFF
Figure 7 Timing Diagram Enable and LED Dimming
Normal
SWO ON
PWMO ON
Power OFF Delay Time
Power OFF
Iq_OFF
7.2
Electrical Characteristics
Table 3 EC Enable and Dimming
V_IN = 8V to 34V; T_j = -40 ⋅C to +150 ⋅C, all voltages with respect to ground, positive current flowing into pin; (unless
otherwise specified)
Pos. Parameter
Symbol
Limit Values
Unit Conditions
Min. Typ. Max.
Enable/PWM Input:
7.2.1 Enable/PWMI
Turn On Threshold
V_EN/PWMI,ON 3.0
–
V
–
7.2.2
7.2.3
Enable/PWMI
Turn Off Threshold
V_EN/PWMI,OFF –
Enable/PWMI Hysteresis V_EN/PWMI,HYS 50
–
0.8
V
–
200
400
mV
1)
Datasheet
17
Rev. 1.0, 2010-10-13