Linear Technology LTC6804-1 - Page 13

LTC6804-1/LTC6804-2
13
680412fc
For more information www.linear.com/LTC6804-1
Typical perForMance characTerisTics
V
REF2
vs Temperature V
REF2
Load Regulation V
REF2
V
+
Line Regulation
V
REF2
V
REG
Line Regulation
V
REF2
Hysteresis, Hot
V
REF2
Power-Up
V
REF2
Hysteresis, Cold
V
REF2
Long-Term Drift
V
REF2
Change Due to IR Reflow
T
A
= 25°C, unless otherwise noted.
TEMPERATURE (°C)
–50
V
REF2
(V)
3.001
3.002
3.003
25 75
680412 G28
3.000
2.999
–25 0
50 100 125
2.998
2.997
V
+
= 39.6V
5 TYPICAL PARTS
I
OUT
(mA)
0.01
CHANGE IN V
REF2
(ppm)
–600
–400
680412 G29
–800
–1000
0.1
1
10
0
–200
125°C
85°C
25°C
–45°C
V
+
= 39.6V
V
REG
= 5V
V
+
(V)
5
CHANGE IN V
REF2
(ppm)
150
35
580412 G30
0
–100
15 25 45
–150
–200
200
100
50
–50
55 65 75
125°C
85°C
25°C
–45°C
V
REG
GENERATED FROM
DRIVE PIN, FIGURE 28
V
REG
(V)
4.5
–150
CHANGE IN V
REF2
(ppm)
–100
–50
0
50
100
150
R
L
= 5k
4.75 5 5.25 5.5
680412 G31
125°C
85°C
25°C
–45°C
V
REF2
(V)CSB
1.5
2.5
3.5
680412 G32
0.5
5
1.0
2.0
3.0
0
0
–5
1ms/DIV
V
REF2
CSB
R
L
= 5k
C
L
= 1µF
TIME (HOURS)
0
CHANGE IN V
REF2
(ppm)
0
680412 G33
–50
–100
1000 2000
500
1500 2500
50
100
–25
–75
25
75
3000
8 TYPICAL PARTS
CHANGE IN REF2 (ppm)
–125
NUMBER OF PARTS
15
20
25
T
A
= 85°C TO 25°C
75
680412 G34
10
5
0
–75
–25
25
125
175
CHANGE IN REF2 (ppm)
–250
NUMBER OF PARTS
8
12
680412 G35
4
0
–200 –150
–100 –50 0 50 100
16
6
10
2
14
T
A
= –45°C TO 25°C
CHANGE IN REF2 (ppm)
0
NUMBER OF PARTS
10
20
30
260°C, 1 CYCLE
5
15
25
–500 –300 –100 100
680412 G36
300–700