lt1186f Linear Technology Corporation, lt1186f Datasheet - Page 5

• Manufacturer Part Number: lt1186f
• Description: Dac Programmable Ccfl Switching Regulator
• Manufacturer: Linear Technology Corporation

TYPICAL PERFORMANCE CHARACTERISTICS
0.53
0.52
0.51
0.50
0.49
0.48
0.47
0.46
0.45
0.44
0.43
0.42
0.41
0.40
0.39
0.38
103
102
101
100
5.10
5.05
5.00
4.95
4.90
4.85
4.80
99
98
97
96
95
–75
–75
I
vs Temperature
V
Ratio vs Temperature
–75
CCFL
vs Temperature
C
– 50
– 50
CCFL V
I
to DIO Current Servo
–50
CCFL
I(DIO) = 1mA
Summing Voltage
–25
–25
–25
Programming Current
I
CCFL
TEMPERATURE ( C)
0
I
C
TEMPERATURE ( C)
CCFL
0
0
TEMPERATURE ( C)
I(DIO) = 10mA
Source Current for
25
= 50 A
25
I
= 100 A
CCFL
25
50
I(DIO) = 5mA
50
50
= 10 A
75
75
75
100
100
100
W
125
125
125
LT1186F • G07
LT1186F • G13
LT1186F • G10
150
150
150
U
175
175
175
–10
–4
–5
– 6
–8
–9
–1
–2
–3
–7
0.30
0.25
0.20
0.15
0.10
0.05
5
4
3
2
1
0
1.2
1.0
0.8
0.6
0.4
0.2
0
0
0
I
Load Regulation
–75
–75
CCFL
V
vs Temperature
Positive DIO Voltage
vs Temperature
20
C
I
–50
–50
CCFL
Low Clamp Voltage
Summing Voltage
40
–25
–25
PROGRAMMING CURRENT ( A)
60
I(DIO) = 1mA
T = 125 C
TEMPERATURE ( C)
TEMPERATURE ( C)
0
0
80
I(DIO) = 10mA
25
25
T = –55 C
100
50
50
T = 25 C
120
75
75
140
100
100
I(DIO) = 5mA
160
125
125
LT1186F • G08
180
LT1186F • G11
LT1186F • G14
150
150
200
175
175
2.4
2.1
1.9
1.7
–3
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
2.3
2.2
2.0
1.8
10
–1
–2
9
8
7
6
5
4
3
2
1
0
0
–75
–75
–75
V
vs Temperature
Negative DIO Voltage
vs Temperature
V
vs Temperature
C
C
– 50
– 50
–50
Sink Offset Current
High Clamp Voltage
–25 0
–25
–25 0
TEMPERATURE ( C)
TEMPERATURE ( C)
TEMPERATURE ( C)
CCFL V
0
CCFL V
25 50 75 100
I(DIO) = 10mA
25
25
I(DIO) = 5mA
I(DIO) = 1mA
CCFL V
C
50
50
= 1.0V
C
= 0.5V
LT1186F
75
C
75
= 1.5V
100
100
125 150
125
125
LT1186F • G12
LT1186F • G15
LT1186F • G09
150
150 175
5
175
175