Rainbow-electronics MAX15031 Manual do Utilizador descarregar pdf (Página 5)

LIGHT-LOAD SWITCHING

WAVEFORM WITH RC FILTER

MAX15031 toc09

1µs/div

BIAS

AC-COUPLED

50V/div

500mA/div

1mV/div

0mA

OUT

= 0.1mA, V

BIAS

= 70V

MAX15031

80V, 300mW Boost Converter and Current

Monitor for APD Bias Applications

_______________________________________________________________________________________ 5

HEAVY-LOAD SWITCHING

WAVEFORM WITH RC FILTER

MAX15031 toc10

1µs/div

BIAS

AC-COUPLED

50V/div

500mA/div

1mV/div

0mA

OUT

= 4mA, V

BIAS

= 70V

LINE-TRANSIENT RESPONSE

MAX15031 toc12

100ms/div

2V/div

3.3V

OUT

AC-COUPLED

100mV/div

OUT

= 70V

OUT

= 1mA

RISE

= 50µs

LOAD-TRANSIENT RESPONSE

MAX15031 toc11

100ms/div

OUT

AC-COUPLED

200mV/div

LOAD

5mA/div

0mA

OUT

= 70V

= 3.3V

LX LEAKAGE CURRENT

vs. TEMPERATURE

MAX15031 toc13

TEMPERATURE (°C)

LX LEAKAGE CURRENT (nA)

1109565 80-10 5 20 35 50-25

100

120

140

160

180

200

-40 125

CURRENT INTO

LX PIN

Typical Operating Characteristics (continued)

PWR

= V

= 3.3V, V

OUT

= 70V, circuit of Figure 3 (Figure 4 for V

> 5.5V), unless otherwise noted.)

MAXIMUM LOAD CURRENT

vs. INPUT VOLTAGE

MAX15031 toc15

INPUT VOLTAGE (V)

MAXIMUM LOAD CURRENT (mA)

1097 85 64

100

110

311

A: V

OUT

= 30V, B: V

OUT

= 35V, C: V

OUT

= 45V,

D: V

OUT

= 55V, E: V

OUT

= 60V, F: V

OUT

= 72V

LOAD REGULATION

MAX15031 toc14

LOAD CURRENT (mA)

OUTPUT VOLTAGE (V)

4321

68.2

68.4

68.6

68.8

69.0

69.2

69.4

69.6

69.8

70.0

68.0

BIAS CURRENT

vs. BIAS VOLTAGE

MAX15031 toc16

BIAS VOLTAGE (V)

BIAS CURRENT (mA)

70605040302010

0.1

0.01

080

APD

= 2mA

APD

= 500nA

1 2 3 4 5 6 7 8 9 10 ... 16 17

MAX15031 1

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