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参数资料
| 型号： | MAX8795A+ |
| 厂商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分类： | 稳压器 |
| 英文描述： | 1.6 A SWITCHING REGULATOR, 1400 kHz SWITCHING FREQ-MAX, QCC32 |
| 封装： | 5 X 5 MM, 0.80 MM HEIGHT, LEAD FREE, MO-220WHHD-2, TQFN-32 |
| 文件页数： | 3/24页 |
| 文件大小： | 387K |
| 代理商： | MAX8795A+ |
MAX8795A
Typical Operating Circuit
The MAX8795A typical operating circuit (Figure 1) is a
complete power-supply system for TFT LCDs. The circuit
generates a +14V source-driver supply and +25V and
-10V gate-driver supplies. The input voltage range for the
IC is from +2.5V to +5.5V. The listed load currents in
Figure 1 are available from a +4.5V to +5.5V supply.
Table 1 lists some recommended components, and Table
2 lists the contact information of component suppliers.
TFT-LCD DC-DC Converter with
Operational Amplifiers
_
__
_
1
11
1
C3
0.1
F
C4
0.1
F
C14
68pF
C11
0.1
F
LX
D1
L1
3.0
H
LX
C2
22
F
D2
VMAIN
14V/500mA
R1
137k
1%
R2
13.3k
1%
R3
6.8k
R6
1k
R19
100k
R20
100k
R17
100k
R18
100k
R15
100k
R16
100k
R13
100k
R14
100k
R11
100k
R12
100k
R4
191k
1%
R5
10.0k
1%
Q1
C5
0.47
F
VGON
25V/20mA
C6
0.1
F
LX
VIN
4.5V TO 5.5V
D3
Q2
C1
22
F
C12
220
F
C13
0.1
F
R10
10
180k
R9
6.8k
C10
0.1
F
R7
324k
1%
R8
31.6k
1%
C9
0.22
F
C8
0.22
F
VGOFF
-10V/50mA
C7
0.033
F
TO VCOM
BACKPLANE
IN
COMP
DRVN
FBN
REF
FB
AGND
PGND
DRVP
FBP
SRC
COM
LX
DEL
NEG1
NEG2
OUT2
OUT3
NEG4
OUT4
NEG5
OUT5
OUT1
DRN
CTL
SUP
BGND
POS1
POS2
POS3
POS4
POS5
MAX8795A
EP
Figure 1. Typical Operating Circuit
DESIGNATION
DESCRIPTION
C1
22F, 6.3V X5R ceramic capacitor (1210)
TDK C3225X5R0J227M
C2
22F, 16V X5R ceramic capacitor (1812)
TDK C4532X5X1C226M
D1
3A, 30V Schottky diode (M-flat)
Toshiba CMS02
D2, D3
200mA, 100V, dual ultra-fast diodes (SOT23)
Fairchild MMBD4148SE
DESIGNATION
DESCRIPTION
L1
3.0H, 3A inductor
Sumida CDRH6D28-3R0
Q1
200mA, 40V pnp bipolar transistor (SOT23)
Fairchild MMBT3906
Q2
200mA, 40V npn bipolar transistor (SOT23)
Fairchild MMBT3904
Table 1. Component List
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX8795AETJ+ | 功能描述:直流/直流开关转换器 TFT-LCD DC/DC Converter RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT |
| MAX8795AETJ+C7P | 功能描述:显示驱动器和控制器 TFT-LCD DC/DC Converter 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 |
| MAX8795AETJ+T | 功能描述:LCD 驱动器 TFT-LCD DC/DC Converter RoHS:否 制造商:Maxim Integrated 数位数量:4.5 片段数量:30 最大时钟频率:19 KHz 工作电源电压:3 V to 3.6 V 最大工作温度:+ 85 C 最小工作温度:- 20 C 封装 / 箱体:PDIP-40 封装:Tube |
| MAX8795AEVKIT+ | 功能描述:电源管理IC开发工具 MAX8795A Eval Kit RoHS:否 制造商:Maxim Integrated 产品:Evaluation Kits 类型:Battery Management 工具用于评估:MAX17710GB 输入电压: 输出电压:1.8 V |
| MAX8795AGCJ/V+ | 功能描述:LCD 驱动器 TFT-LCD DC/DC Converter RoHS:否 制造商:Maxim Integrated 数位数量:4.5 片段数量:30 最大时钟频率:19 KHz 工作电源电压:3 V to 3.6 V 最大工作温度:+ 85 C 最小工作温度:- 20 C 封装 / 箱体:PDIP-40 封装:Tube |
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