参数资料
型号: MAX8795AGCJ+T
厂商: Maxim Integrated Products
文件页数: 19/31页
文件大小: 0K
描述: IC CONV DC-DC TFT-LCD 32LQFP
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 2,000
应用: 转换器,TFT,LCD
输入电压: 2.5 V ~ 6 V
输出数: 8
输出电压: 2.5 V ~ 18 V
工作温度: -40°C ~ 105°C
安装类型: 表面贴装
封装/外壳: 32-LQFP
供应商设备封装: 32-LQFP(7x7)
包装: 带卷 (TR)
TFT-LCD DC-DC Converter with
Operational Amplifiers
C DEL . Once the C DEL capacitor voltage exceeds 1.25V
(typ), the switch-control block is and op amps are enabled
2.25V
V IN
as shown in Figure 6. After the switch-control block is
enabled, COM can be connected to SRC or DRN through
1.05V
V REF
V MAIN
the internal p-channel switches, depending upon the state of
CTL. Before startup and when IN is less than V UVLO , DEL is
internally connected to AGND to discharge C DEL . Select
C DEL to set the initial start-up delay and the switch-control
block startup delay times using the following equation:
V GON
C DEL = DELAY _ TIME ×
I 6 μ A
1 . 25 V
Switch-Control Block
12ms
1.25V
V GOFF
V DEL
The switch-control input (CTL) is not activated until all
four of the following conditions are satisfied: the input
voltage exceeds V UVLO , the soft-start routine of all the
INPUT
SOFT-
SOFT-
SWITCH
regulators is complete, there is no fault condition detect-
VOLTAGE
OK
START START
BEGINS ENDS
CONTROL
ENABLED
ed, and V DEL exceeds its turn-on threshold. Once acti-
vated and if CTL is high, the 5 ? internal p-channel
switch (Q1) between COM and SRC turns on and the
Figure 6. Power-Up Sequence
IN
MAX8795A
5 μ A
2.25V
FB OK
FBP OK
FBN OK
Q1
SRC
DEL
REF
COM
CTL
Q2
DRN
Figure 7. Switch-Control Block
______________________________________________________________________________________
19
相关PDF资料
PDF描述
MAX606ESA+ IC DC-DC CONVERT 8-SOIC
RBC18DRSD-S273 CONN EDGECARD 36POS DIP .100 SLD
X40430S14-C IC VOLT MON TRPL EEPROM 14-SOIC
X40430S14-BT1 IC VOLT MON TRPL EEPROM 14-SOIC
X40430S14-B IC VOLT MON TRPL EEPROM 14-SOIC
相关代理商/技术参数
参数描述
MAX8796GTJ+ 功能描述:电压模式 PWM 控制器 IMVP6 Single-Phase PWM Controller RoHS:否 制造商:Texas Instruments 输出端数量:1 拓扑结构:Buck 输出电压:34 V 输出电流: 开关频率: 工作电源电压:4.5 V to 5.5 V 电源电流:600 uA 最大工作温度:+ 125 C 最小工作温度:- 40 C 封装 / 箱体:WSON-8 封装:Reel
MAX8796GTJ+C8V 制造商:Maxim Integrated Products 功能描述:IMVP6/GMCH CONTROLLER - Rail/Tube
MAX8796GTJ+G05 制造商:Maxim Integrated Products 功能描述:IMVP6/GMCH CONTROLLER - Rail/Tube
MAX8796GTJ+G071 制造商:Maxim Integrated Products 功能描述:IMVP6/GMCH CONTROLLER - Rail/Tube
MAX8796GTJ+G1D 功能描述:电压模式 PWM 控制器 1-Phase Quick-PWM Intel IMVP-6/GMCH RoHS:否 制造商:Texas Instruments 输出端数量:1 拓扑结构:Buck 输出电压:34 V 输出电流: 开关频率: 工作电源电压:4.5 V to 5.5 V 电源电流:600 uA 最大工作温度:+ 125 C 最小工作温度:- 40 C 封装 / 箱体:WSON-8 封装:Reel