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RT9471DGQW(2)
Evaluation Board
3A
Single Cell Switching Battery Charger
Evaluation Board
General Description
The RT9471D is a highly-integrated 3A switch mode battery charge management and system power path
management device for single cell Li-Ion and Li-polymer battery. The low impedance power path optimizes switch-
2
mode operation efficiency, reduces battery charging time and extends battery life during discharging phase. The I
C
serial interface with charging and system settings makes the device a truly flexible solution.
Table of Contents
General Description ...................................................................................................................................................... 1
Performance Sepcification Summary ........................................................................................................................... 2
Power-up Procedure ..................................................................................................................................................... 2
Detailed Description of Hardware ................................................................................................................................. 3
Bill of Materials.............................................................................................................................................................. 5
Typical Applications ...................................................................................................................................................... 6
Evaluation Board Layout ............................................................................................................................................... 9
More Information ......................................................................................................................................................... 13
Important Notice for Richtek Evaluation Board ........................................................................................................... 13
EVB_RT9471DGQW(2)-00
June 2023
1
http://www.richtek.com
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Table of Contents
Related Manuals for Richtek RT9471DGQW
Summary of Contents for Richtek RT9471DGQW
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Page 1: Table Of Contents
Performance Sepcification Summary ........................... 2 Power-up Procedure ..............................2 Detailed Description of Hardware ..........................3 Bill of Materials................................5 Typical Applications ..............................6 Evaluation Board Layout ............................... 9 More Information ................................. 13 Important Notice for Richtek Evaluation Board ......................13 EVB_RT9471DGQW(2)-00 June 2023 http://www.richtek.com... -
Page 2: Performance Sepcification Summary
RT9471DGQW(2) Evaluation Board Performance Sepcification Summary Summary of the RT9471D Evaluation Board performance specificiaiton is provided in Table 1. The ambient temperature is 25°C. Table 1. RT9471D Evaluation Board Performance Specification Summary Specification Test Conditions Unit Input Voltage Range, VBUS 13.5... -
Page 3: Detailed Description Of Hardware
RT9471DGQW(2) Evaluation Board Detailed Description of Hardware Headers Description and Placement Carefully inspect all the components used in the EVB according to the following Bill of Materials table, and then make sure all the components are undamaged and correctly installed. If there is any missing or damaged component, which may occur during transportation, please contact our distributors or e-mail us at evb_service@richtek.com. - Page 4 RT9471DGQW(2) Evaluation Board Test Point/ Function Pin Name PMID PMID from VBUS. BTST Boost strap pin. Interupt pin. C SDA. C SCL. /QON Power key. Input sense. Charger enable or disable. Positive of USB data line. Negative of USB data line.
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Page 5: Bill Of Materials
RT9471DGQW(2) Evaluation Board Bill of Materials Reference Count Part Number Description Package Vendor GRM155R61E105KA12 1µF/25V/X5R/0402 0402 Murata GRM155R60J475ME47 4.7µF/6.3V/X5R/0402 0402 Murata GRM033R61C473KE84 47nF/16V/X5R/0201 0201 Murata C5, C6, C7 GRM185R60J106ME15 10µF/6.3V/X5R/0603 0603 Murata GRM188R61E106MA73 10µF/25V/X5R/0603 0603 Murata CONN EDGE DUAL FMALE... -
Page 6: Typical Applications
RT9471DGQW(2) Evaluation Board Typical Applications EVB Schematic Diagram PMID USB TY PE-C 3.1 J102 CONN EDGE DUAL FMALE 20POS 0.8mm PMID GND3 RX2+ TX2+ RX2- TX2- SY S VBUS VBUS USB2 VBUS1 VBUS3 MICRO USB AB TY PE,SMT SBU1 VBUS... - Page 7 RT9471DGQW(2) Evaluation Board Measure Result Power –Up with VBUS Plug In Charge Enable Charge Disable Boost Start-Up AICC Enable Charger Efficiency, VBAT = 3.8V EVB_RT9471DGQW(2)-00 June 2023 http://www.richtek.com...
- Page 8 RT9471DGQW(2) Evaluation Board Charger Efficiency, VBAT = 4.2V Boost Efficiency EVB_RT9471DGQW(2)-00 June 2023 http://www.richtek.com...
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Page 9: Evaluation Board Layout
RT9471DGQW(2) Evaluation Board Evaluation Board Layout Figure 1 to Figure 4 are RT9471D Evaluation Board layout. Figure 1. Top View (1 layer) EVB_RT9471DGQW(2)-00 June 2023 http://www.richtek.com... - Page 10 RT9471DGQW(2) Evaluation Board Figure 2. PCB Layout—Inner Side (2 Layer) EVB_RT9471DGQW(2)-00 June 2023 http://www.richtek.com...
- Page 11 RT9471DGQW(2) Evaluation Board Figure 3. PCB Layout—Inner Side (3 Layer) EVB_RT9471DGQW(2)-00 June 2023 http://www.richtek.com...
- Page 12 RT9471DGQW(2) Evaluation Board Figure 4. Bottom View (4 Layer) EVB_RT9471DGQW(2)-00 June 2023 http://www.richtek.com...
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Page 13: More Information
THIS DOCUMENT IS FOR REFERENCE ONLY, NOTHING CONTAINED IN THIS DOCUMENT SHALL BE CONSTRUED AS RICHTEK’S WARRANTY, EXPRESS OR IMPLIED, UNDER CONTRACT, TORT OR STATUTORY, WITH RESPECT TO THE PRESENTATION HEREIN. IN NO EVENT SHALL RICHTEK BE LIABLE TO BUYER OR USER FOR ANY AND ALL DAMAGES INCLUDING WITHOUT LIMITATION TO DIRECT, INDIRECT, SPECIAL, PUNITIVE OR CONSEQUENTIAL DAMAGES.
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