BD8179MUV-E2 查看數據表（PDF） - ROHM Semiconductor

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BD8179MUV-E2

5V Input Multi-channel System Power Supply IC

ROHM Semiconductor 

Power Supply IC Series for TFT-LCD Panels

5V Input Multi-channel

System Power Supply IC

BD8179MUV

No.09035EBT04

●Description

The BD8179MUV is a system power supply IC for TFT panels.

A 1-chip IC providing a total of three voltages required for TFT panels, i.e., source voltage, gate high-level, and gate low-level

voltage, thus constructing a TFT panel power supply with minimal components required.

●Features

1) Step Up DC/DC Converter.

2) Incorporates 18V, 3.0A N-channel FET

3) Linear-Regulator Controllers for VGON and VGOFF

4) 5 channel Operational Amplifiers/±150mA Output Short-Circuit Current 40V / µs Slew Rate

5) Switching Frequency: 1200 kHz.

6) Gate Shading Function Included.

7) Protection Circuits

8) Over Current Protection

9) Timer Latch Mode Short Current Protection.

10) Thermal Shut Down.

11) Under Voltage Protection.

12) Over Voltage Protection

13) VQFN032V5050 Package

●Applications

Liquid crystal TV, PC monitor, and TFT-LCD panel

●Absolute maximum ratings (Ta = 25℃)

Parameter

Symbol

Limit

Unit

Power Supply Voltage

VIN

7

V

VMAIN Voltage

VMAIN

20

V

SUP Voltage

VSUP

20

V

DRVP Voltage

VDRVP

40

V

DRVN Voltage

VDRVN

-30

V

SRC Voltage

VSRC

40

V

CTL Voltage

VCTL

7

V

Junction Temperature

Tjmax

150

℃

Power Dissipation

Pd

4560

mW

Operating Temperature Range

Topr

-40～85

℃

Storage Temperature Range

Tstg

-55～150

℃

* Reduced by 19.52 mW/℃ over 25℃, when mounted on a glass epoxy board.

(4-layer 74.2 mm  74.2 mm  1.6 mm).

●Operating Condition

Parameter

Power Supply Voltage

VMAIN Voltage

SUP Voltage

DRVP Voltage

DRVN Voltage

SRC Voltage

Symbol

VIN

VMAIN

VSUP

VDRVP

VDRVN

VSRC

Limit

Min.

Max.

Unit

2.6

5.5

V

8

18

V

-

18

V

-

38

V

-

-20

V

-

38

V

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2009.07 - Rev.B

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