TLD1314EL_15 Datasheet, PDF (21/29 Pages) Marl International Limited – Basic LED Driver

TLD1314EL
Load Diagnosis
Note: In applications, where 1 output of the LITIX^TM Basic IC is not used, a zener diode can be connected to the
output to avoid unintended open load or short circuit conditions. The zener voltage should be in the range
of the LEDs’ forward voltage.
8.3
Electrical Characteristics IN_SET Pin and Load Diagnosis
Electrical Characteristics IN_SET pin and Load Diagnosis
Unless otherwise specified: V_S = 5.5 V to 40 V, T_j = -40 °C to +150 °C, R_SET = 12 kΩ, V_DEN = 5.5 V, all voltages
with respect to ground, positive current flowing into pin for input pins (I), positive currents flowing out of the I/O and
output pins (O) (unless otherwise specified)
Pos. Parameter
Symbol
Limit Values
Unit Conditions
8.3.1
8.3.2
IN_SET reference
voltage
IN_SET open load/short
circuit voltage
V_{IN_SET(ref)}
Min.
1.19
V_{IN_SET(OL/SC)} 4
Typ.
1.23
–
8.3.3 IN_SET open load/short I_{IN_SET(OL/SC)} 1.5
–
circuit current
Max.
1.27 V
5.5
V
7.4
mA
1) _{VOUTx = 3.6 V}
T_j = 25...115 °C
1) _{VS > 8 V}
T_j = 25...150 °C
V_S = V_OUTx (OL) or V_OUTx
= 0 V (SC)
1) _{VS > 8 V}
T_j = 25...150 °C
V_{IN_SET} = 4 V
V_S = V_OUTx (OL) or V_OUT
= 0 V (SC)
8.3.4
ST device turn on
threshold (active low) in
case of voltage applied
from external (ST-pin
acting as input)
V_ST(L)
0.8
–
–
V
–
8.3.5
ST device turn off
threshold (active low) in
case of voltage applied
from external (ST-pin
acting as input)
V_ST(H)
–
–
2.5
V
–
8.3.6 ST pull down current
I_ST(PD)
–
–
8.3.7 ST open load/short
V_ST(OL/SC)
4
–
circuit voltage (ST-pin
acting as diagnosis
output)
8.3.8
ST open load/short
circuit current (ST-pin
acting as diagnosis
output)
I_ST(OL/SC)
100 –
8.3.9
8.3.10
OL detection filter time
OL detection voltage
V_PS(OL) = V_S - V_OUTx
t_OL
V_PS(OL)
10
22
0.2
–
15
µA
V_ST = 0.8 V
5.5
V
1) _{VS > 8 V}
T_j = 25...150 °C
R_ST = 470 kΩ
V_S = V_OUTx (OL) or V_OUT
= 0 V (SC)
220
µA
1) _{VS > 8 V}
T_j = 25...150 °C
V_ST = 2.5 V
V_S = V_OUTx (OL) or V_OUT
= 0 V (SC)
35
µs
1) _{VS > 8 V}
0.4
V
V_S > 8 V
Data Sheet
21
Rev. 1.1, 2015-03-24