参数资料
型号: DS3988T+
厂商: Maxim Integrated
文件页数: 5/23页
文件大小: 0K
描述: IC CCFL CNTRLR 8CH 48TQFP
标准包装: 1
类型: CCFL 控制器
频率: 40 ~ 80 kHz
电流 - 电源: 15mA
电源电压: 4.5 V ~ 5.5 V
工作温度: -40°C ~ 85°C
封装/外壳: 48-LQFP
供应商设备封装: 48-LQFP(7x7)
包装: 管件
8-Channel Cold-Cathode
Fluorescent Lamp Controller
Typical Operating Characteristics
(V CC = +5.0V, T A = +25°C, unless otherwise noted.)
ACTIVE SUPPLY CURRENT
vs. SUPPLY VOLTAGE
20
ACTIVE SUPPLY CURRENT
vs. TEMPERATURE
4
INTERNAL FREQUENCY CHANGE
vs. TEMPERATURE
19
17
f LF:OSC = 71kHz
GATE Q C = 3.5nC
DPWM = 100%
19
18
V CC = 4.5V
V CC = 5.0V
V CC = 5.5V
3
2
15
13
11
9
DPWM = 50%
DPWM = 10%
17
16
15
14
13
1
0
-1
-2
LAMP FREQUENCY
DPWM FREQUENCY
12
7
5
SVM = 0V
11
10
f LF:OSC = 71kHz
GATE Q C = 3.5nC
DPWM = 100%
-3
-4
4.5
4.7
4.9
5.1
5.3
5.5
-40
-15
10
35
60
85
-40
-15
10
35
60
85
10 μ s
5.0V G A
10 μ s
5.0V G B
10 μ s
2.0V LCM
10 μ s
2.0V OVD
SUPPLY VOLTAGE (V)
TYPICAL OPERATION AT 12V
10 μ s
5.0V G A
10 μ s
5.0V G B
10 μ s
2.0V LCM
10 μ s
2.0V OVD
TEMPERATURE ( ° C)
TYPICAL OPERATION AT 15V
10 μ s
5.0V G A
10 μ s
5.0V G B
10 μ s
2.0V LCM
10 μ s
2.0V OVD
TEMPERATURE ( ° C)
TYPICAL OPERATION AT 18V
2ms
2.0V SVM
2ms
5.0V G B
2ms
2.0V LCM
2ms
2.0V OVD
TYPICAL STARTUP WITH SVM
1ms
5.0V G A
1ms
5.0V G B
1ms
2.0V LCM
1ms
2.0V OVD
BURST DIMMING AT 150Hz AND 10%
_____________________________________________________________________
5
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