WS3235D数据手册OmniVision中文资料规格书

描述 Description

The WS3235 features Input and Battery Over Voltage Protection as well as precision adjustable output Current Limit.

When input voltage exceeds input OVP threshold, the WS3235 will turn off internal MOSFET to disconnect IN to OUT. Current limit threshold can be programmed by external resistor. When OCP occurs and lasts for more than 180 μs blanking time, the MOSFET will turn off. Once OCP reaches 16 times, the MOSFET will be permanently off unless the input power is recycled or EN pin re-enabled. Battery OVP threshold is fixed 4.35V, and built-in 180 μs blanking time could prevent false triggering. When the battery OVP occurs for 16 times, the MOSFET will turn off permanently unless the input power is recycled or EN pin re-enabled.

The WS3235 is available in DFN2x2-8L package. Standard product is Pb-Free and Halogen-Free.

Applications:– Cellular Phones and Digital Cameras– PDAs and Smart Phones– Portable Instruments

特性 Features

• Programmable OCP
• Fixed OVP Threshold:
– WS3235D: 6.8V
– WS3235D58: 5.85V
– WS3235D62: 6.25V
• Battery OVP: 4.35V
• Maximum Input Voltage: 30V
• Input Over Voltage Turn Off Time: 0.1 μs
• Over Temperature Protection
• High Immunity of False Triggering Under Transients
• High Accuracy Protection Thresholds
• Warning Indication Output