Texas Instruments TPS62110 Evaluation Module TPS62110EVM-346 TPS62110EVM-346 数据表
产品代码
TPS62110EVM-346
1
Introduction
1.1
Background
User's Guide
SLVU254 – September 2008
TPS62110EVM-346
This user’s guide describes the characteristics, operation, and use of the TPS62110EVM-346 WLED Drive
and Voltage Regulator evaluation module (EVM). The EVM features two independent circuits, one
demonstrates the device as a typical voltage regulator and a second demonstrates the circuit as a current
regulator driving a white LED (WLED). This user’s guide includes setup instructions for the hardware, a
schematic diagram, a bill of materials, and printed-circuit board layout drawings for the evaluation module.
and Voltage Regulator evaluation module (EVM). The EVM features two independent circuits, one
demonstrates the device as a typical voltage regulator and a second demonstrates the circuit as a current
regulator driving a white LED (WLED). This user’s guide includes setup instructions for the hardware, a
schematic diagram, a bill of materials, and printed-circuit board layout drawings for the evaluation module.
Contents
1
2
3
Design Procedure Divider Network
4
Test Results
5
Printed-Circuit Board Layout
6
Schematic and Bill of Materials
7
Related Documentation From Texas Instruments
List of Figures
1
WLED Section Efficiency at Iout of 500 mA
2
Voltage Regulator Section Efficiency Versus Vin at Iout of 1 A
3
Voltage Regulator Section Efficiency Versus Iout for Vin 6 V and 12 V
4
Assembly Layer
5
Top Layer Routing
6
Bottom Layer Routing
7
TPS62110EVM-346 Schematic, WLED Section
8
TPS62110EVM-346 Schematic, Voltage Regulator Section
List of Tables
1
Performance Specification Summary
2
TPS62110EVM-346 Bill of Materials
The Texas Instruments TPS62110 is a synchronous, step-down converter. With a high-switching,
operating frequency of 1 MHz, external components are small; the typical inductor size is 6.8
operating frequency of 1 MHz, external components are small; the typical inductor size is 6.8
µ
H, and the
overall solutions area is 20 mm
×
15 mm. The power switch current limit of 2.4 A provides a typical output
current of 1.5 A across a wide input voltage range of 5 V to 17 V.
The TPS62110EVM-346 uses the TPS62110 in two independent circuits. The U1 circuit is configured as a
current regulator driving a WLED at 500 mA. The U2 circuit is the traditional voltage regulator circuit set to
a 3.3-V output. The EVM operates with full-rated performance at an input voltage between 4 V and 17 V.
current regulator driving a WLED at 500 mA. The U2 circuit is the traditional voltage regulator circuit set to
a 3.3-V output. The EVM operates with full-rated performance at an input voltage between 4 V and 17 V.
Golden DRAGON is a trademark of OSRAM Opto Semiconductor GmbH.
SLVU254 – September 2008
TPS62110EVM-346
1