lt3571 Linear Technology Corporation, lt3571 Datasheet - Page 5

• Manufacturer Part Number: lt3571
• Description: 75v Dc/dc Converter For Apd Bias
• Manufacturer: Linear Technology Corporation

TYPICAL PERFORMANCE CHARACTERISTICS
206
204
202
200
198
196
194
1.2
0.8
0.6
0.4
0.2
–1
–2
–3
–4
–5
–6
2
1
0
1
0
–50
–50
0
FB vs CTRL
V
vs Temperature
Current Monitor Accuracy
vs Temperature
V
V
OUT
MONIN
MONIN
10μA
–25
–25
0.2
– V
= 50V
= 75V
MONIN
0
0
TEMPERATURE (°C)
TEMPERATURE (°C)
0.4
250nA
25
25
CTRL (V)
Threshold
0.6
50
50
0.8
75
75
100
100
1
2.5mA
3571 G10
3571 G16
3571 G13
125
125
1.2
RESPONSE
INPUT
5.10
5.05
5.00
4.95
4.90
4.85
4.80
22
21
18
20
19
1.0E-07
10
Current Monitor Transient
Response (Rising Edge)
Current Monitor Output vs V
V
I
V
APD
MONIN
MONIN
I
APD
T
= 100μA
20
RD
= 75V
= 10μA
< 100ns
- V
30
APD CURRENT (A)
APD
1.0E-05
V
40
MONIN
vs APD Current
50ns/DIV
50
(V)
I
APD
60
1.0E-03
= 1mA
MONIN
70
T
3571 G11
3571 G14
3571 G17
A
= 25°C, unless otherwise specifi ed.
80
RESPONSE
INPUT
5.05
4.95
5.1
4.9
–4
–1
–2
–3
1.0E-07
4
3
2
1
0
5
–50
Current Monitor Accuracy
V
Current Monitor Transient
Response (Falling Edge)
V
V
I
APD
MONIN
MONIN
MONIN
I
–25
APD
1.0E-06 1.0E-05
= 1mA
T
FD
= 75V
= 75V
= 1mA
< 100ns
– V
0
INPUT CURRENT (A)
TEMPERATURE (°C)
APD
25
50ns/DIV
vs Temperature
1.0E-04
50
LT3571
I
APD
75
1.0E-03
= 10μA
100
3571 G12
3571 G15
3571 G18
1.0E-02
5
3571f
125