參數(shù)資料
型號(hào): MAX8729
廠商: Maxim Integrated Products, Inc.
英文描述: Constant-Frequency, Half-Bridge CCFL Inverter Controller
中文描述: 固定頻率、半橋CCFL逆變控制器
文件頁(yè)數(shù): 8/26頁(yè)
文件大?。?/td> 395K
代理商: MAX8729
M
Constant-Frequency, Half-Bridge CCFL Inverter
Controller
8
_______________________________________________________________________________________
DPWM FREQUENCY vs. R
LF
R
LF
(k
Ω
)
D
M
75
125
175
225
275
325
100
200
300
400
500
DPWM FREQUENCY vs. INPUT VOLTAGE
INPUT VOLTAGE (V)
D
M
8
12
16
20
206.0
206.5
207.0
207.5
208.0
LAMP CURRENT vs. R
SENSE
R
SENSE
(
Ω
)
L
M
110
150
170
190
210
230
4
5
6
7
8
9
130
V
CC
LINE REGULATION
INPUT VOLTAGE (V)
V
C
M
8
11
14
17
20
5.330
5.338
5.346
5.354
5.362
5.370
V
CC
LOAD REGULATION
LOAD CURRENT (mA)
V
C
M
0
2
4
6
8
10
5.29
5.31
5.35
5.33
5.37
5.39
V
CC
vs. TEMPERATURE
TEMPERATURE (
°
C)
V
C
M
-40
-15
10
35
60
85
5.30
5.32
5.34
5.36
5.38
5.40
V
= 12V
NOT SWITCHING
DPWM PHASE SHIFT (90
MAX8729 toc16
B
A: SLAVE DPWM 5V/div
B: MASTER DPWM 5V/div
A
2ms/div
SWITCHING PHASE SHIFT (90
°
)
A
A: SLAVE DPWM
B: MASTER DPWM
B
4ms/div
Typical Operating Characteristics (continued)
(Circuit of Figure 1. V
IN
= 12V, V
CC
= V
DD,
T
A
= +25°C, unless otherwise noted.)
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