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Summary of Contents for Texas Instruments TPS2330
- Page 1 TPS2330 48 V Telecom Hot Swap Evaluation Module and Interface Card User’s Guide April 2001 PMP PD & PS SLVU048...
- Page 2 Texas Instruments and its subsidiaries (TI) reserve the right to make changes to their products or to discontinue any product or service without notice, and advise customers to obtain the latest version of relevant information to verify, before placing orders, that information being relied on is current and complete. All products are sold subject to the terms and conditions of sale supplied at the time of order acknowledgment, including those pertaining to warranty, patent infringement, and limitation of liability.
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Page 3: Read This First
How to Use This Manual This document contains the following chapters: Chapter 1—Introduction Chapter 2—48-V Telecom Hot Swap Chapter 3—Schematics of the EVM and the Interface Card Chapter 4—Layouts of the EVM and the Interface Card Chapter 5—Setup of the EVM Chapter 6—Test Points FCC Warning This equipment is intended for use in a laboratory test environment only. -
Page 5: Table Of Contents
Introduction ..............48-V Telecom Hot-Swap EVM . - Page 6 Running Title—Attribute Reference...
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Page 7: Introduction
The TPS2330 is a Texas Instruments hot-swap controller that eliminates high- frequency hot-plug or hot-removal transients, reduces inrush current, and pro- vides overcurrent protection. To demonstrate this hot-swap controllability at high-voltage systems, an evaluation module has been developed, as present- ed in this user’s guide. - Page 8 Introduction...
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Page 9: 48-V Telecom Hot-Swap Evm
Because telecommunications applications often use –48-V or 48-V power supplies, a few external components (including a Zener diode and a resistor) are needed to make the TPS2330 suitable to meet the voltage requirements. To assist designers in the evaluation of the hot-swap controllers for such high- voltage applications, a set of evaluation modules has been developed: one is the 48-V telecom hot-swap EVM, and the other is an interface card. - Page 10 48-V Telecom Hot-Swap EVM...
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Page 11: Schematics Of The Evm And The Interface Card
The evaluation kit includes two boards: one is the hot-swappable TPS2330EVM-184 48-V hot-swap EVM (SLVP184 board) where the TPS2330 controls voltage ramp-up and reduces inrush current during hot-plug events; the other is an interface card (SLVP155 board) that supplies power to the 48-V hot-swap board. -
Page 12: Schematic Of The 48-V Hot-Swap Evm (Slvp184)
Because the interface card was originally designed for universal application purposes, some of the components shown in the schematic above may not be on the board when shipped with this EVM kit. Refer to the bill of materials table for a complete component list. A key is installed in the edge connector on the interface board (SLVP155) to ensure that the hot-swap board can only be inserted the right direction. -
Page 13: Components On The Interface Card (Slvp155), Bill Of Materials
The bills of materials (BOM) for both boards are shown in Tables 3–1 and 3–2, respectively. Table 3–1. Components on the Interface Card (SLVP155), Bill of Materials Ref Des Part Number C1, C2, C3 Not used C4, C6 Not used 12061C104KAT2A Capacitor, ceramic, 0.1- F, 1100-V, +X7R, 10%, Y5V C7, C8, C9 Not used... - Page 14 C4 and C8 on SLVP184 adjust the output turnon ramp-up rate and propagation delay time. Reducing the capacitance of C8 will increase the output ramp-up speed, and decreasing the value of C4 will reduce the output turnon delay time and increase the output ramp-up rate. Schematics of the EVM and the Interface Card...
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Page 15: Layouts Of The Evm And The Interface Card
Chapter 4 Layouts of the EVM and the Interface Card The following figures illustrate the placements of the components and the top-layer layouts for both the 48-V hot-swap EVM and the interface card respectively. All the components are placed on the top layers except for the 0.1- F capacitor (C8) on SLVP184 that has now been included on the bottom layer. -
Page 16: Top Layer
Figure 4–1. Top Layer of the Interface Card and Placement of the Components Top Layer Top Assembly Layouts of the EVM and the Interface Card... - Page 17 Figure 4–2. Top Layer of the 48-V Hot-Swap EVM and Placement of Components Top Layer Top Assembly Layouts of the EVM and the Interface Card...
- Page 18 Layouts of the EVM and the Interface Card...
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Page 19: Test Points
For proper operation of the EVM, one 48-V power supply, and a voltage meter or an oscilloscope are required. Refer to the setup diagram in Figure 5–1 and follow these steps for hot plug testing: 1) Verify that the power-supply voltage is set at 48 V. Make sure the supply has the capability to provide the current loads need. - Page 20 Figure 5–1. Evaluation Setup of the Hot-Swap Board EVM Power Supply 48–V, 1–A Supply – Plug SLVP184 board into edge connector. Note key and slot loctions. Setup of the EVM...
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Page 21: Test Points
On the 481-V hot-swap EVM, there are total 7 test points: TP1 – Gate of the IRF530N MOSFET TP2 – Input (VIN) of TPS2330 TP3 – VIN+ (EVM positive input rail, same as Vout+) TP4 – Vout+ (EVM positive output rail, same as VIN+) TP5 –... - Page 22 Test Points...
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