参数资料
型号: MAX749ESA+T
厂商: Maxim Integrated Products
文件页数: 3/12页
文件大小: 0K
描述: IC SUPPLY LCD BIAS ADJ 8-SOIC
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 2,500
应用: LCD 显示器
电流 - 电源: 60µA
电源电压: 2 V ~ 6 V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 8-SOIC(0.154",3.90mm 宽)
供应商设备封装: 8-SOIC
包装: 带卷 (TR)
Digitally Adjustable LCD Bias Supply
__________________________________________Typical Operating Characteristics
(T A = +25°C, L = 47μH, unless otherwise noted.)
85
EFFICIENCY vs. OUTPUT
CURRENT – PNP
80
78
EFFICIENCY vs. OUTPUT
CURRENT – PNP
85
EFFICIENCY vs. OUTPUT
CURRENT – MOSFET
-24V
80
-12V
76
-12V
80
-12V
75
70
-24V
-5V
V+ = 3V
R BASE = 470 ?
R SENSE = 0.25 ?
TRANSISTOR: ZTX750
74
72
70
68
-24V
-5V
V+ = 3V
R BASE = 160 ?
R SENSE = 0.25 ?
TRANSISTOR = ZTX750
75
70
-5V
V+ = 5V
R SENSE = 0.25 ?
TRANSISTOR: SMD10P05L
66
65
64
65
0
10
20
30
40
50
60
0
10 20 30 40 50 60 70 80 90 100
0
5 10 15 20 25 30 35 40 45 50
OUTPUT CURRENT (mA)
EFFICIENCY vs.
OUTPUT VOLTAGE
OUTPUT CURRENT (mA)
EFFICIENCY vs.
OUTPUT VOLTAGE
OUTPUT CURRENT (mA)
85
85
-20mA
-5mA
80
75
-5mA
-20mA
- 40mA
80
75
- 40mA
70
V+ = 3V
R BASE = 470 ?
R SENSE = 0.25 ?
TRANSISTOR : ZTX750
70
V+ = 5V
R SENSE = 0.25 ?
TRANSISTOR : SMD10P05L
65
-24 -22 -20 -18 -16 -14 -12 -10 -8 -6 -4
65
-24 -22 -20 -18 -16 -14 -12 -10 -8 -6
-4
400
OUTPUT VOLTAGE (V)
LOAD CURRENT vs. INPUT VOLTAGE
500
OUTPUT VOLTAGE (V)
LOAD CURRENT vs. INPUT VOLTAGE
350
300
R BASE = 470 ?
R SENSE = 0.25 ?
TRANSISTOR = ZTX750
-5V
450
400
350
R BASE = 160 ?
R SENSE = 0.25 ?
TRANSISTOR = ZTX750
-5V
250
200
300
250
150
100
50
0
-12V
-24V
-48V
200
150
100
50
0
-12V
-24V
-48V
2
3
4
5
6
2
3
4
5
6
INPUT VOLTAGE (V)
INPUT VOLTAGE (V)
_______________________________________________________________________________________
3
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