DS1842 Description
The DS1842 integrates the discrete high-voltage ponents necessary for avalanche photodiode (APD) bias and monitor applications. A switch FET is used in conjunction with an external DC-DC controller to create a boost DC-DC converter. A current clamp limits current through the APD and also.
DS1842 Key Features
- 76V Maximum Boost Voltage
- Switch FET
- Current Monitor with a Wide 1µA to 2mA Range, Fast 50ns Time Constant, and 10:1 and 5:1 Ratio
- 2mA Current Clamp with External Shutdown
- Multiple External Filtering Options
- 3mm x 3mm, 14-Pin TDFN Package with Exposed Pad