TPS92830EVM Board
LED Board
DC Power Supply
VBAT
GND
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Test Setup
7
SLVUB41 – July 2017
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Copyright © 2017, Texas Instruments Incorporated
TPS92830-Q1 EVM User's Guide
1.3.2.2.6
ICTRL Jumper
Table 9. ICTRL Jumper
Label
Jumper
With Shunt – 1
Without Shunt – 0
Description
Analog dimming
J18
1
0
Connect ICTRL to a potentiometer for analog dimming
Thermal protection
J19
0
1
Connect ICTRL to an NTC resistor for overtemperature
protection
2
Test Setup
Table 10
shows the typical parameters for the TPS92830EVM. The typical requirement for 3s3p red LED
loads is 9 V–16 V, and 85°C is the maximum ambient temperature for the application. The full-scale
output current of the TPS92830EVM is 300 mA. Users can adjust the output current by using the analog
dimming function or changing the sensing resistors.
Table 10. TPS92830EVM Parameters
Parameter
Value
Input voltage
9 V–16 V Typical
Output current
0–300 mA
LED
3s3p red LED LR H9GP
Maximum ambient temperature
85°C
The TPS92830EVM can support a minimum 5-V input voltage using one LED. The maximum supported
input voltage is 40 V, but the output current must be controlled and/or the number of LEDs be properly
selected to limit the temperature on the MOSFETs.
Below is the overview of the setup of the TPS92830EVM. Connect the positive and negative outputs of the
dc power supply to TP22 (VBAT) and TP23 (GND) on the TPS92830EVM board. Connect J1 on the
TPS92830EVM board and J12 on the LED board together with the 5-wire cable.
Figure 3. TPS92830EVM Setup
With the default jumper connections, the board should begin operating as soon as proper voltage is
applied to the input. Modify the jumpers for other operating modes.