AAT4685 Over-Voltage Protection Switch with OCP and BOVP
The AAT4685 OVPSwitch™ is a member of Skyworks' Application Specific Power MOSFET™ (ASPM™) product family. It is an N-channel MOSFET power switch with precise over-voltage protection control, designed to protect low-voltage systems against high-voltage faults up to +28V. It also integrates over-current protection (OCP), battery over-voltage protection (BOVP) and overtemperature protection (OTP). When the input voltage exceeds the programmed overvoltage threshold, the N-channel MOSFET switch will be turned off to prevent damage to the output load circuits. An external resistor divider is adopted to program the adjustable version over-voltage trip point. Over-current protection protects the case of output short circuits by disconnecting the load from the input supply. A battery voltage monitor is integrated and disconnect the IN and OUT when the battery voltage exceed its rated voltage. The AAT4685 also monitors its own die temperature and OVP switch off if it becomes too hot. The AAT4685 includes an under-voltage lockout (UVLO) protection circuit, which puts the device into sleep mode at low input voltages only consuming 100μA current. It also includes two indicators: input supply power good indicator (POK) which is always active whether EN is low or high, and a fault flag indicator (FLT) which goes to active low when a fault condition (OV, OC, BOV and OT) occurs at EN = low. The AAT4685 is offered in a Pb-free, 3x3mm 12-pin TDFN package with a pin-out optimized for safety and is specified for operation over the -40°C to +85°C ambient temperature range.
技术特性
订购信息 Ordering Information
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应用领域 APPLICATION
AAT4685 典型应用
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| 应用技术支持与电子电路设计开发资源下载 | 版本信息 | 大小 |
| AAT4685 数据资料DataSheet下载:pdf | Rev.V2 | 2 页 |
