3
Electrical characteristics
Table 1
Electrical characteristics
Parameter
Symbol
Values
Unit
Note or test condition
Min.
Typ.
Max.
Input voltage
V
IN_5V
4.5
5
5.5
V
V
IN_5V
is directly connected to
Arduino 5 V, voltage higher than 5.5 V
will damage your Arduino UNO
Input current
I
IN_5V
50
470
1300
mA
TLD7002SHIELD_DEMO sketch sets
OUT current to 25 mA per channel.
If duty cycle is modified to 100%
and all outputs are ON, then the 5 V
current will be approximately 470 mA
LED power supply
V
LED
4.5
–
35
V
V
LED
can be as low as 0 V if JVLED
jumper is open and JVLED resistor
not populated
TLD7002-16ES power
supply
V
S
6
–
20
V
–
Output voltage
V
OUT_n
0
–
20
V
Diagnostic setting has to be adapted
in the OTP configuration file for the
shield to be used with different loads
Output current
I
OUT_n
5.6
–
76.5
mA
TLD7002SHIELD_DEMO V1 is set to
25 mA
PWM frequency
f
PWM
99.9
–
1997
Hz
–
The input current on the TLD7002-16SHIELD is equal to the sum of all of the following:
•
The LED currents multiplied by their duty cycle
•
The TLD7002-16ES supply current (VS pin) multiplied by 2, due to the charge pump
•
The Arduino UNO supply current
In the provided sketch the output current is set to 20 mA per channel, if duty cycle is set to 100% and all outputs
are ON, the current consumption would be approximately:
I
5
V_REF
= I
OUT_n
⋅
16
+ I
VS_typ
+ I
ArduinoUNO_typ
=
25
mA ⋅
16
+
15
mA ⋅
2
+
40
mA =
470
mA
(1)
TLD7002-16SHIELD
User guide
3 Electrical characteristics
User guide
8
Rev.1.00
2022-07-26
