5562A / G5562A IC Schematic Circuit Diagram

Number of the IC - 5562A, G5562A
Application - Power Management of TFT LCD TV Panel
Operating Voltage - DC 8 Volts to DC 14 Volts
Switching Frequency - 500KHz and 700KHz (Optional) For DC-To-DC Converter
Temperature -  -40°C to 85°
Package of 5562A IC - QFN 48 Pin (Quad Flat No-Lead Package)

The 5562A IC is used for power management of countless thin film transistors in the LCD TV panel. The circuit designed by 5562A IC has a step-down converter for the VGL charge pump, which provides the system's logic voltage, and the step-up converter is for the VGH charge pump, which supplies the source voltage. 5562A IC has an integrated dual charge pump circuit, generating VGH and VGL voltages independently.

5562A or G5562A IC Schematic Circuit Diagram, Pinout, Pin Function, Pin Voltage, and Datasheet.

The 5562A IC has a unique VCOM and AVDD voltage output arrangement; for DC-to-DC voltage converting, the pulse generator circuit in the 5562A IC has a fixed switching frequency of 500KHz or 750KHz.

LED TV Companies design different types of circuits in their technology for power management of TFT LCD panels. They produce different output voltage by increasing or decreasing the circuit's frequency, voltage, and current rate; in this case, resistors, capacitors, and inductors of different values are used in the schematic circuit diagram designed by the 5562A IC

Following the BOE company's LCD TV panel, I have designed the 5562A schematic circuit diagram below.

5562A / G5562A IC Schematic Circuit Diagram

5562A / G5562A IC pin name and pin voltage (Pin 1 to 24)

Pin-- Pin Name Pin Voltage
1. VREF   16.8 Volts
2. VOP   16.8 Volts
3. GND   0 Volts
4. OPP    8.3 Volts
5. OPN   8.3 Volts
6. OPO   8.3 Volts
7. XAO  0.56 Volts
8. GVOFF
9. EN     12 Volts
10. FBB 0.2 Volts
11. OUT 3.3 Volts

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13. SWB   3.3 Volts
14. SWB   3.3 Volts
15. NC    0 Volts
16. IN2   12 Volts
17. IN2   12 Volts
18. GND  0 Volts
19. VDET  0 Volts
20. IVL     12 Volts
21. VL      5.1 Volts
22. FSEL    3.5 Volts
23. CLIM   1.15 Volts
24. SS        3.49 Volts
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5562A / G5562A IC pin name and pin voltage (Pin 25 to 48)

Pin ..Pin Name...Pin Voltage
26.   SW      12 Volts
27. PGND   0 Volts
28. PGND   0 Volts
29. GD_I    16.8 Volts
30. GD_I    10.27 Volts
31. FB         0.04 Volts
32. COMP   0.1 Volts
33. THR       1.4 Volts
34. SUPPLY  12.33 Volts
35. CPGND  16 Volts
36. DRVP      4.18 Volts

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37 DLY1    5.0 Volts
38 FVP      33.5 Volts
39 VGH     33.5 Volts
40 VGHM  1.2 Volts
41 DRN     0 Volts
42 SUPN   12 Volts
43 DRVN  7.8 Volts
44 GND     0 Volts
45 FBN      0 Volts
46 REF      1.3 Volts
47 VREF   1.3 Volts
48 VREF_I  16 Volts
25 SW      12 Volts
Equivalent or substitute for 5562A IC - 6861AAQ IC
Moreover, the pin function of  RT9955 IC is the same.