Using the TPS2500/1 EVM User's Guide Literature Number: SLUU363 June 2009
User's Guide SLUU363 – June 2009 TPS2500/1, Power-Distribution Switch With Low Voltage Input EVM This user’s guide describes the TPS2500/1DRCEVM evaluation modules (EVM). This guide contains the EVM schematic, bill of materials, assembly drawing, and top and bottom board layouts. 1 Introduction The TPS2500/1DRCEVM is an evaluation module (EVM) for Texas Instruments’ family of power-distribution switches with adjustable current-limit. These EVMs operate over a 1.8-V to 5.
Schematic www.ti.com 3 Schematic 3.1 EVM Options Table 2. EVM Options 3.2 HPA337 DEVICE DEVICE PACKAGE ECO MODE -1 TPS2500DRC SON Enabled -2 TPS2501DRC SON Disabled Schematic Figure 1.
EVM Setup www.ti.com 4 EVM Setup 4.1 Recommended Test Equipment The following test equipment is recommended: • Two-channel storage oscilloscope • Current probe • Voltage probe • An adjustable power supply with a 1.75-V to 6.5-V output and a 10-A output current-limit • Volt-ohm meter • A passive or active load capable of handling 3 A. 4.2 Measuring the Short-Circuit Output Current-Limit The user should read the TPS2500/1 data sheet before using the EVM.
EVM Setup www.ti.com Figure 3. TPS2500EVM Short-Circuit Output Current and FAULT Status With J3 Shorting Jumper Present. 4.3 Figure 4. TPS2500EVM Short-Circuit Output Current and FAULT Status With J3 Shorting Jumper Absent. Adjusting the Short-Circuit Output Current-Limit The EVM provides two current-limit settings. If a different setting is required, then populate header J3 with a shorting jumper and modify resistor R3 using the current limit resistor calculator, TI Literature Number SLVC163.
Board Layout 5 www.ti.com Board Layout Figure 5.
Board Layout www.ti.com Figure 6.
Board Layout www.ti.com Figure 7.
Board Layout www.ti.com Figure 8.
List of Materials 6 www.ti.com List of Materials Table 3. TPS2500/1 List of Materials (1) (2) (3) (4) TPS2501 (1) (2) (3) (4) 10 TPS2500 REF DES DESCRIPTION PART NUMBER MFR 1 1 C1 Capacitor, ceramic, 10 V, X5R, 10%, 10 µF, 0805 C2012X5R1A10 6K 2 2 C2, C5 Capacitor, ceramic, 16 V, X7R, 10%, 0.1 µF, 0805 STD STD 1 1 C3 Capacitor, aluminum, SM, 20%, 6.
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