Texas Instruments TPS53125EVM-599 - Manuals

Page 2 - List of Tables; TPS53125EVM-599 Electrical and Performance Specifications; Description; Applications; Digital television; Features; Up to 4 A per channel output

Description www.ti.com List of Tables 1 TPS53125EVM-599 Electrical and Performance Specifications ...................................................... 2 2 Test Point Description ...................................................................................................... 4 3 TPS53125EVM-5...

Page 4 - Connector and Test Point Descriptions; Enable Jumpers/Switches –SW1 and SW2; Table 2; Table 2. Test Point Description; Test Point; Input Voltage Monitoring – TPS and TP9

Connector and Test Point Descriptions www.ti.com 4 Connector and Test Point Descriptions 4.1 Enable Jumpers/Switches –SW1 and SW2 The TPS53125EVM-599 board includes independent enable switches for each of the two outputs. Whenthe switch is in the DIS position, the channel is disabled and discharged ...

Page 5 - Test Setup; Equipment; The input voltage source, V

www.ti.com Test Setup 4.2.4 Soft-Start Voltage Monitoring – TP1, TP2, and TP3 TPS53125EVM-599 provides two test points for measuring the soft-start ramp voltages. TP1 monitors thesoft-start ramp of Channel 1. TP2 monitors the soft-start ramp of Channel 2. To use TP1 or TP2, connectan oscilloscope pr...

Page 6 - Other Test Equipment; Equipment Setup; Figure 2; Test Procedure; Prior to connecting the dc input source, V; , it is advisable to limit the source current from V; to 3 Adc; is initially set to 0 V and connected as shown in

Test Setup www.ti.com J1 to LOAD1 and J2 to LOAD2 - The connection between J1 and LOAD1 and J2 and LOAD2 ofTPS53125EVM-599 can carry as much as 4 Adc each. The minimum recommended wire size is AWG#14, with the total length of wire less than 2 feet (1-foot input, 1-foot return). 5.1.6 Other Test Equi...

Page 7 - Test Setup Diagram; from 8 Vdc to 22 Vdc.

LOAD1 1.05V @ 4A FAN V2 + - Oscilloscope 1M W , AC 20mV / div 20MHz LOAD2 1.8V @ 4A V3 - + - + - + A1 - + V VIN V1 + - www.ti.com Test Setup 5.2.2 Test Setup Diagram Figure 2. TPS53125EVM-599 Recommended Test Setup 5.3 Start-Up/Shutdown Procedures Perform the start-up and shutdown procedures in the ...

Page 8 - Output Ripple Voltage Measurement Procedure; to desired load between 8 Vdc and 22 Vdc.; Equipment Shutdown; Shut down the equipment in the following manner.; Figure 3; Efficiency

0 1 2 3 4 5 I - Load Current - A LOAD 50 55 60 65 70 75 80 85 90 95 h -Efficiency-% V = 8 V I V = 12 V I V = 22 V I TPS53125EVM-599 Test Data www.ti.com 7. Decrease LOAD2 to 0 A. 5.4 Output Ripple Voltage Measurement Procedure Perform the Output Ripple Voltage Measurement procedure in the following ...

Page 9 - Line and Load Regulation

0 10 20 30 40 50 60 70 80 90 100 h -Efficiency-% 0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 I - Load Current - A LOAD V = 8 V I V = 12 V I V = 22 V I V = 8 V I V = 12 V I V = 22 V I 0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 I - Load Current - A LOAD 1.05 1.055 1.06 1.065 1.07 V -OutputV oltage-V O www.ti.com TPS53125EVM-599...

Page 10 - Output Voltage Ripple and Switching Node Waveforms

1.82 1.825 1.83 1.835 1.84 1.845 1.85 1.855 1.86 0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 I - Load Current - A LOAD V -OutputV oltage-V O V = 8 V I V = 12 V I V = 22 V I TPS53125EVM-599 Test Data www.ti.com V IN = 8 V – 22 V, V OUT1 = 1.80 V, I OUT = 0 A – 4 A Figure 6. TPS53125EVM-599 Output Voltage vs Load C...

Page 11 - Switch Node

www.ti.com TPS53125EVM-599 Test Data V IN = 12, V OUT2 = 1.80, I OUT2 = 4 A Figure 8. TPS53125EVM-599 Output Voltage Ripple 6.4 Switch Node tV IN = 12, V OUT1 = 1.05, I OUT1 = 4A, Ch1: TP5 (SW1) Figure 9. TPS53125EVM-599 Switching Waveforms 11 SLVU392 – July 2010 TPS53125EVM-599 Copyright © 2010, Te...

Page 12 - The following figures (

TPS53125EVM-599 Assembly Drawings and Layout www.ti.com V IN = 12, V OUT2 = 1.80, I OUT2 = 4A Ch1: TP11 (SW2) Figure 10. TPS53125EVM-599 Switching Waveforms 7 TPS53125EVM-599 Assembly Drawings and Layout The following figures ( Figure 11 through Figure 15 ) show the design of the TPS53125EVM-599 pri...

Page 17 - IMPORTANT NOTICE; Products

IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, modifications, enhancements, improvements,and other changes to its products and services at any time and to discontinue any product or service without notice. Customers shouldobtain the l...