参数资料
型号: MAX749CSA+T
厂商: Maxim Integrated Products
文件页数: 9/12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: 0°C ~ 70°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
Choosing an Inductor
Practical inductor values range from 22μH to 100μH,
and 47μH is normally a good choice. Inductors with a
ferrite core or equivalent are recommended. The induc-
tor’s saturation current rating – the current at which the
100
80
V OUT = -15V
L = 47 μ H
0.2
0.25
core begins to saturate and the inductance falls to 80%
or 90% of its nominal value – should ideally equal the
current limit (see Current-Sense Resistor section).
However, because the current is limited by the
MAX749, the inductor can safely be driven into satura-
tion with only a slight impact on efficiency.
For highest efficiency, use a coil with low resistance,
preferably under 300m ? . To minimize radiated noise,
60
40
20
0
0.3
0.5
1.0
use a toroid, pot-core, or shielded inductor.
2
3
4
5
6
INPUT VOLTAGE (V)
Figure 9c. Maximum Output Current vs. Input Voltage,
V OUT = -15V
250
0.2
60
0.2
200
150
V OUT = -5V
L = 47 μ H
0.25
0.3
50
40
V OUT = -24V
L = 47 μ H
0.25
30
0.3
100
50
0.5
1.0
20
10
0.5
1.0
0
2
3
4
5
6
0
2
3
4
5
6
INPUT VOLTAGE (V)
Figure 9a. Maximum Output Current vs. Input Voltage,
V OUT = -5V
INPUT VOLTAGE (V)
Figure 9d. Maximum Output Current vs. Input Voltage,
V OUT = -24V
140
0.2
25
0.2
120
100
80
V OUT = -12V
L = 47 μ H
0.25
0.3
20
15
V OUT = -48V
L = 47 μ H
0.25
0.3
60
10
40
0.5
0.5
20
1.0
5
1.0
0
2
3
4
5
6
0
2
3
4
5
6
INPUT VOLTAGE (V)
Figure 9b. Maximum Output Current vs. Input Voltage,
V OUT = -12V
INPUT VOLTAGE (V)
Figure 9e. Maximum Output Current vs. Input Voltage,
V OUT = -48V
_______________________________________________________________________________________
9
相关PDF资料
PDF描述
TCM809ZVLB713 IC RESET MONITOR 2.32V SC70-3
A1BXH-4036G IDC CABLE - ASR40H/AE40G/X
TCM809RVLB713 IC RESET MONITOR 2.63V SC70-3
EVAL-ADM2914EBZ BOARD EVAL FOR ADM2914
ASPI-7318-R22M-T INDUCTOR SHIELD 0.22UH SMD
相关代理商/技术参数
参数描述
MAX749EPA 功能描述:显示驱动器和控制器 Digitally Adjustable LCD Bias Supply RoHS:否 制造商:Panasonic Electronic Components 工作电源电压:2.7 V to 5.5 V 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:QFN-44 封装:Reel
MAX749EPA+ 功能描述:其他电源管理 Digitally Adjustable LCD Bias Supply RoHS:否 制造商:Texas Instruments 输出电压范围: 输出电流:4 mA 输入电压范围:3 V to 3.6 V 输入电流: 功率耗散: 工作温度范围:- 40 C to + 110 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-48 封装:Reel
MAX749ESA 功能描述:显示驱动器和控制器 Digitally Adjustable LCD Bias Supply RoHS:否 制造商:Panasonic Electronic Components 工作电源电压:2.7 V to 5.5 V 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:QFN-44 封装:Reel
MAX749ESA+ 功能描述:其他电源管理 Digitally Adjustable LCD Bias Supply RoHS:否 制造商:Texas Instruments 输出电压范围: 输出电流:4 mA 输入电压范围:3 V to 3.6 V 输入电流: 功率耗散: 工作温度范围:- 40 C to + 110 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-48 封装:Reel
MAX749ESA+ 制造商:Maxim Integrated Products 功能描述:IC LCD BIAS SUPPLY 8-SOIC 制造商:Maxim Integrated Products 功能描述:IC, LCD BIAS SUPPLY, 8-SOIC