参数资料
| 型号： | MAX4840AEXT+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 7/11页 |
| 文件大小： | 0K |
| 描述： | IC CTLR OVP 5.8V SC70-6 |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 1 |
| 类型： | 过压保护控制器 |
| 应用： | 手机，数码相机，媒体播放器 |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 6-TSSOP，SC-88，SOT-363 |
| 供应商设备封装： | SC-70-6 |
| 包装： | 标准包装 |
| 产品目录页面： | 1423 (CN2011-ZH PDF) |
| 其它名称： | MAX4840AEXT+TDKR |
MAX4838A/MAX4840A/MAX4842A
Overvoltage-Protection Controllers with
Status
FLAG
_______________________________________________________________________________________
5
PIN
NAME
FUNCTION
1IN
Input. IN is both the power-supply input and the overvoltage sense input. Bypass IN to GND with
a 1F capacitor or larger.
2
GND
Ground
3
FLAG
Fault Indication Output, Open-Drain, Active Low. FLAG is asserted low during undervoltage-
lockout and overvoltage-lockout conditions. FLAG is deasserted during normal operation.
4
GATE
Gate-Drive Output. GATE is the output of an on-chip charge pump. When VUVLO < VIN < VOVLO,
GATE is driven high to turn on the external n-channel MOSFET(s).
5N.C.
No Connection. Not internally connected for DFN package. Connected to ground for SC70
6-pin package; connect to ground or leave unconnected.
6
EN
Device Enable Input, Active Low. Drive EN low or connect to ground to allow normal device
operation. Drive EN high to turn off the external MOSFET.
Pin Description
VIN
VGATE
0V
VUVLO
0.3V
tSTART
2.4V
tBLANK
8V (6V)
tGON
VFLAG
5V (4V)
( ) MAX4842A
Figure 1. Startup Timing Diagram
VIN
VGATE
VOVLO
0.3V
tGOFF
0.4V
tFLAG
5V (4V)
8V (6V)
VFLAG
( ) MAX4842A
Figure 2. Shutdown Timing Diagram
VIN
IGATE
VOVLO
80%
tOVP
0V
8V (6V)
( ) MAX4842A
Figure 3. Power-Up Overvoltage Timing Diagram
VGATE
0.3V
tDIS
1.5V
VEN
Figure 4. Disable Timing Diagram
Timing Diagrams
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX4840EXT | 制造商:Maxim Integrated Products 功能描述:OVERVOLTAGE PROTECTION CONTROLLERS - Rail/Tube 制造商:Rochester Electronics LLC 功能描述: |
| MAX4840EXT+ | 制造商:Maxim Integrated Products 功能描述:OVERVOLT PROT CNTRLR 6PIN SC-70 - Rail/Tube |
| MAX4840EXT+T | 功能描述:电流和电力监控器、调节器 Overvoltage Protect Ctlr w/Status FLAG RoHS:否 制造商:STMicroelectronics 产品:Current Regulators 电源电压-最大:48 V 电源电压-最小:5.5 V 工作温度范围:- 40 C to + 150 C 安装风格:SMD/SMT 封装 / 箱体:HPSO-8 封装:Reel |
| MAX4840EXT-G104 | 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述: |
| MAX4840EXT-T | 功能描述:监控电路 RoHS:否 制造商:STMicroelectronics 监测电压数: 监测电压: 欠电压阈值: 过电压阈值: 输出类型:Active Low, Open Drain 人工复位:Resettable 监视器:No Watchdog 电池备用开关:No Backup 上电复位延迟（典型值）:10 s 电源电压-最大:5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:UDFN-6 封装:Reel |
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