MAX8722C 데이터 시트보기 (PDF) - Maxim Integrated
부품명
상세내역
제조사
MAX8722C Datasheet PDF : 21 Pages
| |||
Low-Cost CCFL Backlight Controller
Typical Operating Characteristics (continued)
(Circuit of Figure 1. VBATT = 12V, VCC = VDD, VSHDN = 5.4V, TA = +25°C, unless otherwise noted.)
DPWM FREQUENCY vs. RFREQ
400
DPWM FREQUENCY
vs. INPUT VOLTAGE
215
RMS LAMP CURRENT
vs. INPUT VOLTAGE
6.10
350
210
300
205
250
200
200
150
195
100
100
150 200 250 300 350
RFREQ (Ω)
190
8
NORMALIZED BRIGHTNESS
vs. CNTL VOLTAGE
100
80
60
6.05
6.00
5.95
5.90
NOMINAL CURRENT SET POINT
VCNTL = 1.0V
12
16
20
VIN (V)
5.85
5.80
8
12
16
20
24
INPUT VOLTAGE (V)
VCC LINE REGULATION
0.4
0.2
0
-0.2
-0.4
40
-0.6
20
-0.8
0
0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0
CNTL VOLTAGE (V)
-1.0
4
8
12
16
20
24
INPUT VOLTAGE (V)
VCC LOAD REGULATION
0
VCC ACCURACY vs. TEMPERATURE
0.04
0.03
-0.1
0.02
-0.2
0.01
-0.3
0
-0.4
-0.01
-0.5
0
2
4
6
8
10
LOAD CURRENT (mA)
-0.02
-40 -20
0 20 40 60
TEMPERATURE (°C)
80 100
8 _______________________________________________________________________________________
Share Link: 