快速祛痘的简单方法
新视野大学英语读写教程第二册答案The AAT4687 OVPSwitch™ is a member of AnalogicTech’s Application Specific Power MOSFET™ (ASPM™) product family. It is a P-channel MOSFET power switch with pre-ci over-voltage protection control, designed to protect low-voltage systems against high-voltage faults up to +28V. If the input voltage exceeds the programmed over-voltage threshold, the P-channel MOSFET switch will be turned off to prevent the output load circuits from damage. The AAT4687 is available with an internally programmed over-voltage trip point or as an adjustable version programmed by two external resistors.
The AAT4687 includes an under-voltage lockout (UVLO) protection circuit, which will put the device into sleep mode at low input voltages only consuming < 1μA of current. The AAT4687 also includes an enable pin (EN) to enable or disable the device and an OVP, OTP fault indicator (FLT).
The AAT4687 is offered in a small Pb-free, 10 pin SC70JW package, and is specified for operation over the -40°C to +85°C ambient temperature range.•Over-Voltage Protection up to 28V
•Fixed or Adjustable Over-Voltage Protection Threshold •3V Under-Voltage Lockout Threshold
•Fast OVP Respon:
▪ 0.7μs Typical to Over-Voltage Transient
•Low Operation Quiescent Current
▪ 30μA Typical
▪1μA Max in Shutdown (Disabled)
practi•Thermal Shutdown Protection
• 100mΩ Typical (130mΩ Max) R
DS(ON)
at 5V
•OVP, OTP Fault Indicator
• 1.8A Maximum Continuous Current
•Temperature Range: -40°C to 85°C
tuxedo•Available in SC70JW-10 Package
Applications
• Cell Phones
•Digital Still Cameras
• GPStorontostar
• MP3 Players
•Personal Data Assistants (PDA)
繁星 巴金•USB Hot Swap/Live Inrtion Device
Typical Application (Adjustable Version)
V
OUT
Pin Configuration
SC70JW-10 SC70JW-10 Adjustable Version Fixed Version
(Top View) (Top View)
OVP GND FLT EN
IN GND
GND
lfaGND
OUT
OUT
N/C
GND
FLT
EN
IN
GND
GND
GND
OUT
bol
OUT
itil
Thermal Characteristics
1. Stress above tho listed in Absolute Maximum Ratings may cau permanent damage to the device. Functional operation at conditions other than the operating conditions
specified is not implied. Only one Absolute Maximum Rating should be applied at any one time.
2. Mounted on a FR4 board.
我向往的地方
3. Derate 6.25mW/°C above 25°C.
V IN = 5V, T A = -40 to 85°C unless otherwi noted. Typical values are at T A = 25°C.
1. Fixed OVP Threshold Voltage Version is available from 5V to 14V at 50mV step.
IN FLT
EN OUT
OUT
