Typical operating characteristics (continued) – Rainbow Electronics MAX15031 User Manual
Page 5
LIGHT-LOAD SWITCHING
WAVEFORM WITH RC FILTER
MAX15031 toc09
1
µs/div
V
BIAS
AC-COUPLED
V
LX
50V/div
I
L
500mA/div
1mV/div
0mA
0V
I
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
1
µs/div
V
BIAS
AC-COUPLED
V
LX
50V/div
I
L
500mA/div
1mV/div
0mA
0V
I
OUT
= 4mA, V
BIAS
= 70V
LINE-TRANSIENT RESPONSE
MAX15031 toc12
100ms/div
V
IN
2V/div
3.3V
V
OUT
AC-COUPLED
100mV/div
V
OUT
= 70V
I
OUT
= 1mA
t
RISE
= 50
µs
LOAD-TRANSIENT RESPONSE
MAX15031 toc11
100ms/div
V
OUT
AC-COUPLED
200mV/div
I
LOAD
5mA/div
0mA
V
OUT
= 70V
V
IN
= 3.3V
LX LEAKAGE CURRENT
vs. TEMPERATURE
MAX15031 toc13
TEMPERATURE (
°C)
LX LEAKAGE CURRENT (nA)
110
95
65 80
-10 5
20 35 50
-25
20
40
60
80
100
120
140
160
180
200
0
-40
125
CURRENT INTO
LX PIN
Typical Operating Characteristics (continued)
(V
PWR
= V
IN
= 3.3V, V
OUT
= 70V, circuit of Figure 3 (Figure 4 for V
IN
> 5.5V), unless otherwise noted.)
MAXIMUM LOAD CURRENT
vs. INPUT VOLTAGE
MAX15031 toc15
INPUT VOLTAGE (V)
MAXIMUM LOAD CURRENT (mA)
10
9
7
8
5
6
4
10
20
30
40
50
60
70
80
90
100
110
0
3
11
A
B
C
A: V
OUT
= 30V, B: V
OUT
= 35V, C: V
OUT
= 45V,
D: V
OUT
= 55V, E: V
OUT
= 60V, F: V
OUT
= 72V
D
E
F
LOAD REGULATION
MAX15031 toc14
LOAD CURRENT (mA)
OUTPUT VOLTAGE (V)
4
3
2
1
68.2
68.4
68.6
68.8
69.0
69.2
69.4
69.6
69.8
70.0
68.0
0
5
BIAS CURRENT
vs. BIAS VOLTAGE
MAX15031 toc16
BIAS VOLTAGE (V)
BIAS CURRENT (mA)
70
60
50
40
30
20
10
0.1
1
10
0.01
0
80
I
APD
= 2mA
I
APD
= 500nA