Rainbow-electronics MAX1543 Bedienungsanleitung PDF herunterladen (Seite 7)

MAX1542/MAX1543

TFT LCD DC-to-DC Converter with

Operational Amplifiers

_______________________________________________________________________________________ 7

-30

100 100k10k1k

OPERATIONAL AMPLIFIER FREQUENCY

RESPONSE FOR VARIOUS C

LOAD

-10

-20

MAX1542 toc09

FREQUENCY (Hz)

MAGNITUDE (dB)

SUP

= 8V

= 1

= 10kΩ

1000pF

15pF

56pF

100pF

100

1 100 1000

OPERATIONAL AMPLIFIER OVERSHOOT

vs. LOAD CAPACITANCE

MAX1542 toc10

LOAD CAPACITANCE (pF)

OVERSHOOT (%)

SUP

= 8V

= 10kΩ

= 1

POS_ = 4V ±50mV

FALLING EDGE

RISING EDGE

Typical Operating Characteristics (continued)

= 3.3V, V

MAIN

= 8V, f

OSC

= 1.2MHz, T

= +25°C, unless otherwise noted.)

OPERATIONAL AMPLIFIER

OUTPUT LOW VOLTAGE vs. LOAD

MAX1542 toc12

OUT_

(mA)

(mV)

8642

120

160

010

SUP

= 8V

= 1

OPERATIONAL AMPLIFIER

OUTPUT HIGH VOLTAGE vs. LOAD

MAX1542 toc11

OUT_

(mA)

SUP

- V

OUT

(mV)

8642

120

160

010

SUP

= 8V

= 1

POWER-SUPPLY REJECTION RATIO

vs. FREQUENCY

MAX1542 toc13

FREQUENCY (Hz)

PSRR (dB)

1k100101

100

120

0.1 10k

SUP

= 8V

OPERATIONAL AMPLIFIER

SETTLING TIME vs. STEP SIZE

MAX1542 toc14

STEP SIZE (V)

SETTLING TIME (ns)

1.4 1.6 1.81.0 1.20.4 0.6 0.80.2

100

200

150

300

250

400

450

350

500

0 2.0

SUP

= 8V

= +1

= 10kΩ

= 10pF

= 4V

RISING EDGE

FALLING EDGE

STEP-UP REGULATOR

LOAD-TRANSIENT RESPONSE

MAX1542 toc15

40µs/div

MAIN

200mA/div

500mA/div

200mA

20mA

MAIN

AC-COUPLED

100mV/div

L = 4.7µH

COMP

= 120kΩ

COMP

= 470pF

1 2 3 4 5 6 7 8 9 10 11 12 ... 19 20

Kommentare zu diesen Handbüchern

Keine Kommentare

Rainbow-electronics MAX1543 Bedienungsanleitung Seite 7

Kommentare zu diesen Handbüchern

Verwandte Produkte und Handbücher für Sensoren Rainbow-electronics MAX1543