Texas Instruments TPS92612, User Manual, Page: 3 / 11

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TPS92612EVM Description
3 SLDU034 – December 2017
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TPS92612-Q1 Evaluation Module User's Guide
ADVANCE INFORMATION
2.4 Jumpers
2.4.1 LED Connection Configuration Jumpers – J1, J2, J3, J4, J6
Jumpers J1–J4 and J6 are used to configure the connection of the LED string, including LED open, LED
short to GND, and single-LED short.
Table 1. Jumpers J1, J2, J3, J4, J6
Designator Attached Function With Shunt Without Shunt
J1 LED open LED string connected to OUT LED string open
J3 LED short LED string short to GND Normal operation
J2 Single-LED short Short LED D2 Normal operation
J4 Single-LED short Short LED D3 Normal operation
J6 Single-LED short Short LED D4 Normal operation
2.4.2 PWM Input Jumper – J5
Jumper J5 is used to configure the PWM input signal.
Table 2. Jumpers J5
Designator
Attached
Function
Jumper Position Result
J5 PWM
With shunt
Enable PWM when SUPPLY > 6 V
(PWM connected to SUPPLY via a resistor divider)
Without shunt
Disable PWM or use external control signal
(PWM connected to GND via R3)
3 Test Setup
Table 3 shows the typical parameters for the TPS92612EVM. The typical input voltage range is from 9 V
to 16 V. The full-scale output current of the TPS92612EVM is 40 mA. Users can adjust the output current
by changing the sensing resistor.
Table 3. TPS92612EVM Parameters
Parameter Value
Input voltage 9 V–16 V typical
Output current 40 mA
LED 3s1p LED string
Follow these steps for the EVM test setup:
1. Set the voltage of the dc power supply to 12 V and set the current limit to 100 mA.
2. Connect the positive and negative outputs of the power supply to connectors VBAT and GND on the
EVM board.
3. With the default jumper connections, the board should begin operating as soon as the power supply is
turned on. Modify the jumpers for other operating modes.