Evaluation Board for Charge Pump Regulator for Color TFT Panel EVAL-ADM8832 FEATURES GENERAL DESCRIPTION Provides 3 output voltages (5.1 V,15.3 V, −10.2 V) from one 3 V input supply Power efficiency optimized for use with TFT in mobile phones On-board socket for evaluation of multiple ICs Shutdown line Options to use external LDO The ADM8832 evaluation board allows the ADM8832 TFT color panel charge pump regulator to be quickly and easily evaluated. The evaluation board allows all of the input and output functions to be exercised without the need for external components. Full details about the part are available in the ADM8832 data sheet, which should be consulted when using the EVAL-ADM8832. PACKAGE CONTENTS ADM8832 evaluation board ADP8832 evaluation board data sheet ADM8832 data sheet FUNCTIONAL BLOCK DIAGRAM ADM8832 EVALZ REV A LDO_IN GND LK2 GND LK4 5V –10V ADM8832 SOCKET VCC LK5 LK1 LK6 15V LK7 LK3 LK9 SHDN LDO_ON/OFF SCAN/BLANK 07156-001 LK8 Figure 1. Rev. 0 Evaluation boards are only intended for device evaluation and not for production purposes. Evaluation boards are supplied “as is” and without warranties of any kind, express, implied, or statutory including, but not limited to, any implied warranty of merchantability or fitness for a particular purpose. No license is granted by implication or otherwise under any patents or other intellectual property by application or use of evaluation boards. Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other rights of third parties that may result from its use. Analog Devices reserves the right to change devices or specifications at any time without notice. Trademarks and registered trademarks are the property of their respective owners. Evaluation boards are not authorized to be used in life support devices or systems. One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. www.analog.com Tel: 781.329.4700 Fax: 781.461.3113 ©2008 Analog Devices, Inc. All rights reserved. EVAL-ADM8832 TABLE OF CONTENTS Features .............................................................................................. 1 Setting Up the ADM8832 Evaluation Board .............................4 Package Contents .............................................................................. 1 Evaluation Board Schematic ............................................................5 General Description ......................................................................... 1 Ordering Information .......................................................................6 Functional Block Diagram .............................................................. 1 Bill of Materials ..............................................................................6 Revision History ............................................................................... 2 Ordering Guide .............................................................................6 Evaluation Board Hardware ............................................................ 3 ESD Caution...................................................................................6 Evaluation Board Connectors and Jumpers ................................. 3 REVISION HISTORY 6/08—Revision 0: Initial Version Rev. 0 | Page 2 of 8 EVAL-ADM8832 EVALUATION BOARD HARDWARE The ADM8832 evaluation board contains the following main components, which can be identified from the block diagram and the schematic shown in Figure 1 and Figure 2, respectively: • • • • • 20-lead LFCSP socket to hold the ADM8832 IC 9 jumper points to facilitate the connection of external LDOs, clock sources, and external loads 1 SMB connector for reliable logic signal connection 9 test points for signal connection and measurement A large patchwork area to facilitate the addition of extra components to the ADM8832 evaluation board EVALUATION BOARD CONNECTORS AND JUMPERS The function of the various connectors and jumpers on the evaluation board is explained in Table 1, Table 2, and Table 3. Table 1. Evaluation Board Power Connectors Connector J1 J2 Function Supply to ADM8832 (3 V nominal) External Source (can be regulated by on-board LDO) Table 2. SMB Connection Jumper SK1 Pin CLKIN Function External clock used during blanking mode Logic Level (High = 3 V, Low = 0 V) External Table 3. Jumpers (Links) Jumper LK1 LK1A LK1B LK1C LK2A LK2B LK3A LK3B LK3C LK4A LK4B LK4C LK5A LK5B LK5C LK6A LK6B LK7A LK7B LK8A LK8B LK9A LK9B Description Connects to optional external 5 V loads (R1, R2, and R3). Connects +5VOUT (Pin 4) to 620 Ω resistor (R1) to GND. (This generates a maximum scanning mode load current of 8 mA.) Connects +5VOUT (Pin 4) to 1 kΩ resistor (R2) to GND. (This generates a load current of 5 mA.) Connects +5VOUT (Pin 4) to 24.9 kΩ resistor (R3) to GND. (This generates a maximum blanking mode load current of 200 μA.) Connects VOUT (Pin2) to LDO_IN (Pin 3). Connects external source (J2) to LDO_IN (Pin 3). Connects CLKIN (Pin 9) to VCC. Connects CLKIN (Pin 9) to GND. Connects CLKIN (Pin 9) to SK1. Connects −10VOUT (Pin 17) to 100 kΩ resistor (R6) to GND. (This generates a max load current of 100 μA.) Connects −10VOUT (Pin 17) to 1 MΩ resistor (R7) to GND. (This generates a min load current of 10 μA.) Connects −10VOUT (Pin 17) to patchwork area. Connects +15VOUT (Pin 10) to 150 kΩ resistor (R4) to GND. (This generates a maximum load current of 100 μA.) Connects +15VOUT (Pin 10) to 1.5 MΩ resistor (R5) to GND. (This generates a minimum load current of 10 μA.) Connects +15VOUT (Pin 10) to patchwork area. Connects ADM8832 regulated +5VOUT (Pin 4) to +5VIN (Pin 5). (Input to the +15 V and −10 V charge pump stage.) Connects externally regulated 5 V output to +5VIN (Pin 5). (Input to the +15 V and −10 V charge pump stage.) Connects VCC to LDO_ON/OFF (Pin 6). Connects LDO_ON/OFF (Pin 6) to GND. Connects VCC to SHDN (Pin 7). Connects SHDN (Pin 7) to GND. Connects VCC to SCAN/BLANK (Pin 8). Connects SCAN/BLANK (Pin 8) to GND. Rev. 0 | Page 3 of 8 Default Status Removed Removed Removed Inserted Removed Removed Removed Inserted Inserted Inserted Inserted Inserted Inserted Inserted Inserted Removed Inserted Removed Inserted Removed Inserted Removed EVAL-ADM8832 SETTING UP THE ADM8832 EVALUATION BOARD Blanking Mode Scanning Mode To set up the ADM8832 evaluation board in blanking mode, use the following steps: To set up the ADM8832 evaluation board in scanning mode, use the following steps: 1. 2. 3. 4. 5. 6. 7. 8. 9. Connect the scanning mode load resistors. +5VOUT—Connect R1 (insert LK1A, remove LK1C/LK1D) +15VOUT—Connect R4 (insert LK5A ) −10VOUT—Connect R6 (insert LK4A ) Note that all other load resistors should be disconnected by removing their links (see Table 3). Connect VOUT to the ADM8832 LDO (insert LK2A, remove LK2B). Use 3.3 V logic levels for logic inputs. Connect the following jumpers: SHDN—Insert LK8A, remove LK8B LDO_ON/OFF—Insert LK7A, remove LK7B SCAN/BLANK—Insert LK9A, remove LK9B CLKIN—Connect the SMB cable to SK1. Note that an external clock is not required to be applied to CLKIN (Pin 9) in this mode. Apply a 3 V supply to J1. 1. 2. 3. 4. 5. 6. 7. 8. 9. Rev. 0 | Page 4 of 8 Connect the blanking mode load resistors. +5VOUT—Connect R3 (insert LK1C, remove LK3A/LK3B) +15VOUT—Connect R5 (insert LK5B) −10VOUT—Connect R7 (insert LK4B) Note that all other load resistors should be disconnected by removing their links (see Table 3). Connect VOUT to the ADM8832 LDO (insert LK2A, remove LK2B). Use 3.3 V logic levels for logic inputs. Connect the following jumpers: SHDN—Insert LK8A, remove LK8B LDO_ON/OFF—Insert LK7A, remove LK7B SCAN/BLANK—Insert LK9B, remove LK9A (The signal must be low for blanking mode.) CLKIN—Connect the SMB cable to SK1. Note that an external clock must be applied to CLKIN (Pin 9) in this mode. The frequency of this clock is nominally 1 kHz (refer to the ADM8832 data sheet for more details). Apply a 3 V supply to J1. EVAL-ADM8832 EVALUATION BOARD SCHEMATIC R5 R4 R2 R3 R1 24.9k LK1 LK9 U1 ADM8832ACP LK3 SK1 LK5 LK4 R7 R6 1M 1.5M 07156-002 Figure 2. ADM8832 Evaluation Board Schematic Rev. 0 | Page 5 of 8 EVAL-ADM8832 ORDERING INFORMATION BILL OF MATERIALS Table 4. Qty 1 2 1 2 7 6 5 1 1 1 1 1 1 1 Reference Designator U1 J1, J2 SK1 T1 to T2, T4 to T10 C2 to C4, C8 to C9 C1, C5 to C7 R1 R2 R3 R4 R5 R6 R7 Description 20-lead LFCSP socket (ADM8832 inside) Power connector, 5 mm pitch SMB connector Test point Test point Capacitor, 1 μF, 50 V, 1206, X7R Capacitor, 2.2 μF, 25 V, 1206, X7R Resistor, 620 Ω, 0805 1% Resistor, 1 kΩ, 0805 1% Resistor, 24.9 kΩ, 0805 1% Resistor, 150 kΩ, 0805 1% Resistor, 1.5 MΩ, 0805 1% Resistor, 100 kΩ,0805 1% Resistor, 1 M Ω, 0805 1% ORDERING GUIDE Model ADM8832-EVALZ1 1 Manufacturer Loranger Weidmuller Emerson Vero Vero TDK TDK Yageo Yageo Yageo Yageo Yageo Yageo Yageo ESD CAUTION Description Evaluation Board Z = RoHS Compliant Part. Rev. 0 | Page 6 of 8 Part Number 03714-201-6217 1716120000 SMB 131-3701-266 20-313137 20-313137 C3216X7R1H105M C3216X5R1E225K RC0805FR-07620RL RC0805FR-071KL RC0805FR-0725KL RC0805FR-07150L RC0805FR-071M5L RC0805FR-07100KL RC0805FR-071ML EVAL-ADM8832 NOTES Rev. 0 | Page 7 of 8 EVAL-ADM8832 NOTES ©2008 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. EB07156-0-6/08(0) Rev. 0 | Page 8 of 8