Typical operating characteristics (continued) – Rainbow Electronics MAX15031 User Manual
Page 7
MAX15031
80V, 300mW Boost Converter and Current
Monitor for APD Bias Applications
_______________________________________________________________________________________
7
STARTUP DELAY
MAX15031 toc24
100
µs/div
V
APD
20V/div
I
MOUT
50
µA/div
3V
0nA
I
APD
= 2mA
STARTUP DELAY
MAX15031 toc25
100
µs/div
V
APD
2V/div
I
MOUT
20nA/div
0V
0nA
I
APD
= 500nA
V
BIAS
= 5V
STARTUP DELAY
MAX15031 toc26
40
µs/div
V
BIAS
2V/div
I
MOUT
50
µA/div
0V
0nA
I
APD
= 2mA
V
BIAS
= 5V
SHORT-CIRCUIT RESPONSE
MAX15031 toc27
40ms/div
I
LIM
2V/div
I
BIAS
2mA/div
0V
0mA
V
BIAS
= 70V
T
A
= +85
°C
R
LIM
= 2k
Ω
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.)
VOLTAGE DROP
vs. APD CURRENT
MAX15031 toc28
I
APD
(
µA)
V
BIAS
- V
APD
(V)
1000
100
10
1
0.20
0.40
0.60
0.80
1.00
1.20
1.40
0
0.1
10,000
T
A
= +25
°C
T
A
= -40
°C
T
A
= +125
°C
T
A
= +85
°C
SWITCHING FREQUENCY
vs. TEMPERATURE
MAX15031 toc29
TEMPERATURE (
°C)
SWITCHING FREQUENCY (kHz)
110
95
65 80
-10 5
20 35 50
-25
320
340
360
380
400
420
440
460
480
500
300
-40
125