MAX8751 データシートの表示（PDF） - Maxim Integrated

部品番号

コンポーネント説明

メーカー

MAX8751

Fixed-Frequency, Full-Bridge CCFL Inverter Controller

Maxim Integrated 

Fixed-Frequency, Full-Bridge CCFL

Inverter Controller

Typical Operating Characteristics

(Circuit of Figure 1. VIN = 12V, TA = +25°C, unless otherwise noted.)

NORMAL OPERATION

MAX8751 toc01

A

B

C

D

A: VFB, 1V/div

B: LX1, 10V/div

C: LX2, 10V/div

D: IFB, 2V/div

20µs/div

MINIMUM BRIGHTNESS

STARTUP WAVEFORM (VCNTL = 0)

MAX8751 toc02

A

B

MINIMUM BRIGHTNESS

DPWM OPERATION (VCNTL = 0)

MAX8751 toc03

A

B

C

C

2ms/div

A: COMP, 500mV/div

B: IFB, 2V/div

C: VFB, 1V/div

1ms/s

A: COMP, 500mV/div

B: IFB, 2V/div

C: VFB, 1V/div

50% BRIGHTNESS STARTUP WAVEFORM

MAX8751 toc04

A

B

C

2ms/div

A: COMP, 500mV/div

B: IFB, 2V/div

C: VFB, 1V/div

50% BRIGHTNESS DWPM WAVEFORM

(VCNTL = 1V)

MAX8751 toc05

A

B

DPWM SOFT-START

MAX8751 toc06

A

B

1ms/div

A: COMP, 500mV/div

B: IFB, 2V/div

C: VFB, 1V/div

C

C

A: COMP, 1V/div

B: IFB, 1V/div

C: VFB, 1V/div

100µs/div

_______________________________________________________________________________________ 7

Share Link: