24
3.6 Charger IC (MP26021)
Figure.3-6 MP26021 FUNCTIONAL BLOCK DIAGRAM
DESCRIPTION
The MP26021 is a linear, high-performance single cell Li-Ion battery charger. By integrating high
voltage input protection into the charger IC, the MP26021 can tolerate an input surge up to 28V.
The device features constant current (CC) and constant voltage (CV) charging modes with
programmable charge currents (85mA to 1A), programmable battery full threshold, thermal
protection, battery temperature monitoring, reverse current blocking and trickle charge. The device
also provides AC adapter power good and charge status indications to the system.
MP26021 is available in a 10-pin 3mm x 3mm QFN package.
FEATURES
‧
Input Surge Up to 28V
‧
Adapter or USB Input
‧
Programmable Charge Current: 85mA to 1A
‧
Proprietary Constant Voltage Auto Recharge
‧
Proprietary Over-Voltage Protection
‧
0.75% VBATT Accuracy
‧
<1µA Battery Reverse Current
‧
90µA Standby Current from VIN
Содержание GB110
Страница 1: ...1 GB110 GB110 GB110 GB110 Service Manual Service Manual Service Manual Service Manual LG Electronics ...
Страница 13: ...13 3 TECHNICAL BRIEF 3 1Digital Main Processor Figure 3 1 PMB7890 FUNCTIONAL BLOCK DIAGRAM ...
Страница 32: ...32 3 9 LCD Interface Figure 3 9 1 LCD Interface Figure 3 9 2 Charging PUMP Interface ...
Страница 33: ...33 LCD Interface Pin Function Charging PUMP Pin Function ...
Страница 34: ...34 3 10 SIM Card Interface Figure 3 10 SIM CARD Interface ...
Страница 35: ...35 3 11 KEYPAD Interface Figure 3 11 KEY PAD Interface ...
Страница 38: ...38 3 14 Micro SD Interface ...
Страница 40: ...40 Circuit Diagram TP1 TP6 TP3 TP4 TP2 TP5 ...
Страница 42: ...42 4 2 SIM Card Trouble Test Point Circuit Diagram ...
Страница 44: ...44 4 3 Vibrator Trouble Test Point Circuit Diagram ...
Страница 46: ...46 4 4 Keypad Trouble Test Point Circuit Diagram ...
Страница 47: ...47 Checking Flow Change Metal Dome Check Metal Dome Start Change PCB NG OK ...
Страница 48: ...48 4 5 RTC Trouble Test Point Circuit Diagram ...
Страница 50: ...50 4 6 Key Backlight Trouble 1 1 1 Test Point ...
Страница 51: ...51 Circuit Diagram ...
Страница 53: ...53 4 7 LCM Backlight Trouble Test Point Circuit Diagram ...
Страница 55: ...55 4 8 LCM Trouble Test Point Circuit Diagram ...
Страница 57: ...57 4 9 Microphone Trouble Test Point Circuit Diagram ...
Страница 59: ...59 4 10 Receiver Trouble Test Point Circuit Diagram ...
Страница 61: ...61 4 11 Speaker Trouble Test Point Circuit Diagram ...
Страница 63: ...63 4 12 Headphone Trouble Test Point ...
Страница 64: ...64 Circuit Diagram TP1 TP2 ...
Страница 67: ...67 4 13 Charging Trouble Test Point Circuit Diagram ...
Страница 69: ...69 4 14 FM Radio Trouble Test Point ...
Страница 70: ...70 ...
Страница 71: ...71 Circuit Diagram ...
Страница 75: ...75 4 15 Camera Trouble Test Pointer TP1 TP2 TP3 ...
Страница 76: ...76 Circuit Diagram ...
Страница 78: ...78 4 16 Micro SD Trouble Test Pointer TP1 ...
Страница 83: ...83 RX Trouble CIRCUIT ...
Страница 86: ...86 CIRCUIT ...
Страница 88: ...88 TX Trouble CIRCUIT ...
Страница 91: ...91 CIRCUIT ...
Страница 93: ...93 5 DOWNLOAD 5 1 Download Setup ...
Страница 97: ...97 It will present a shortcut in the desktop after installing finish This is DWForService download software ...
Страница 101: ...101 DownLoad Fail If download fail that it will show red and display progress in log window Fig 10 Download fail screen ...
Страница 102: ...102 DownLoad success DownLoad Pass will display green color Fig 11 download success ...
Страница 104: ...104 Add software files in folder as follows ...
Страница 106: ...106 6 BLOCK DIAGRAM ...
Страница 107: ...107 7 CIRCUIT DIAGRMA ...
Страница 113: ...113 8 BGA IC PIN Check 8 1 BGA PIN Check of MCU PMB7890 No NC pin ...
Страница 114: ...114 8 2 BGA PIN Check of Memory ...
Страница 115: ...115 8 3 BGA PIN Check of Camera driver AIT701A No NC pin ...
Страница 116: ...116 9 PCB LAYOUT ...
Страница 131: ...131 11 2 4 Set up Double click the Arima icon will show set up window Fig 25 Double click ARIMA icon window ...
Страница 139: ...139 13 EXPLODED VIEW REPLACEMENT PART LIST 13 1 EXPLODED VIEW ...