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TLD7002-16SHIELD
User guide
3 Electrical characteristics
3
Electrical characteristics
Table 1
Electrical characteristics
Parameter
Symbol
Input voltage
V
Input current
I
LED power supply
V
TLD7002-16ES power
V
supply
Output voltage
V
Output current
I
PWM frequency
f
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
= I
⋅ 16 + I
OUT_n
5V_REF
User guide
Values
Min.
Typ.
4.5
5
IN_5V
50
470
IN_5V
4.5
–
LED
6
–
S
0
–
OUT_n
5.6
–
OUT_n
99.9
–
PWM
+ I
VS_typ
ArduinoUNO_typ
Unit
Note or test condition
Max.
5.5
V
V
IN_5V
Arduino 5 V, voltage higher than 5.5 V
will damage your Arduino UNO
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
35
V
V
LED
jumper is open and JVLED resistor
not populated
20
V
–
20
V
Diagnostic setting has to be adapted
in the OTP configuration file for the
shield to be used with different loads
76.5
mA
TLD7002SHIELD_DEMO V1 is set to
25 mA
1997
Hz
–
= 25mA ⋅ 16 + 15mA ⋅ 2 + 40mA = 470mA
8
is directly connected to
can be as low as 0 V if JVLED
(1)
Rev.1.00
2022-07-26
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