Texas Instruments TPS552892EVM-111, User Manual

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1 Introduction
1.1 Performance Specification
Table 1-1 provides a summary of the TPS552892 EVM performance specifications. All specifications are given
for an ambient temperature of 25°C.
Table 1-1. Performance Specification Summary
Parameter Test Condition Value Unit
Input Voltage N/A 3 - 36 V
Output Voltage N/A 12 V
Maximum Output Current
V
IN
≥ 6 V 3
A V
IN
≥ 9V 4
V
IN
≥ 12V 5
Default Switching Frequency N/A 400 KHz
1.2 Modification
The printed-circuit board (PCB) for this EVM is designed to accommodate some modifications by the user. The
external component can be changed according to the real application.
2 Connector, Test Point and Jumper Descriptions
This section describes how to properly connect, set up, and use the TPS552882EVM-400kHz.
2.1 Connector and Test Point Descriptions
This EVM includes I/O connectors and test points as shown in Table 2-1 . The power supply must be connected
to input connectors, J1 and J2. The load must be connected to output connectors, J3 and J4.
Table 2-1. Connectors and Test Points
Reference
Designator
Description
J1 Input voltage positive connection
J2 Input voltage return connection
J3 Output voltage connection
J4 Output voltage return connection
2.2 Jumper Configuration
2.2.1 JP1 (ENABLE)
The JP1 jumper enables the device. By default, this jumper is set to the ON position. Put this jumper in the OFF
position to disable the output.
2.2.2 JP5(SYNC)
The JP5 jumper is for the frequency dithering selection. Placing a jumper across JP5 disables the frequency
dithering function. Left JP5 opens when using frequency dithering function.
2.2.3 JP6 (MODE)
MODE pin input jumper. Place a jumper across MODE and VCC to set in forced PWM mode, place a jumper
across MODE and GND to set in auto PFM mode.
2.2.4 JP7 (EXTVCC)
EXTVCC pin input jumper. Place a jumper across EXTVCC and VCC to select internal LDO. To minimize the
power dissipation of the internal LDO when both input voltage and output voltage are high, an external 5-V
power source can be applied at the VCC pin (JP4) to supply the TPS55289 and place a jumper across EXTVCC
and GND .
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2 TPS552892EVM-111 EVM User's Guide SLVUCM1 – DECEMBER 2022
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