MAX16928 Просмотр технического описания (PDF) - Maxim Integrated

Номер в каталоге

Компоненты Описание

производитель

MAX16928

Automotive TFT-LCD Power Supply with Boost Converter and Gate Voltage Regulators

Maxim Integrated 

MAX16928

Automotive TFT-LCD Power Supply with Boost

Converter and Gate Voltage Regulators

Typical Operating Characteristics

(VINA = +5V, VSH = +12V, VGH = +18V, VGL = -6V, VREG = 3.3V, TA = +25NC, unless otherwise noted.)

SHUTDOWN SUPPLY CURRENT

10

9

8

7

6

5

4

3

2

1

0

3.0 3.5 4.0 4.5 5.0 5.5

INPUT VOLTAGE (V)

EFFICIENCY vs. LOAD CURRENT (BOOST)

100

90

80

70

VINA = 5V

60

VINA = 3.3V

50

40

30

20

10

0

0

100 200 300 400 500

LOAD CURRENT (mA)

1.0

0.8

0.6

0.4

0.2

0

-0.2

-0.4

-0.6

-0.8

-1.0

0

LOAD REGULATION (BOOST)

VINA = 3.3V

VINA = 5V

100 200 300 400 500 600

LOAD CURRENT (A)

LINE REGULATION (BOOST)

1.0

0.8

0.6

0.4

0.2

0

-0.2

-0.4

-0.6

-0.8

-1.0

3.0 3.5 4.0 4.5 5.0 5.5

INPUT VOLTAGE (V)

BOOST STARTUP WAVEFORMS

MAX16928 toc05

VENP

5V/div

VLXP

10V/div

ILX

1A/div

VSH

10V/div

4ms/div

50mA TO 450mA LOAD-TRANSIENT RESPONSE

MAX16928 toc06

450mA

50mA

ISH

500mA/div

VSH

200mV/div

SUPPLY SEQUENCING WAVEFORMS

(VSEQ = 0V)

MAX16928 toc07

VENP

5V/div

VGH

5V/div

VSH

5V/div

VREG

5V/div

VGL

5V/div

Maxim Integrated

100µs/div

10ms/div

  5

Share Link: