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591 pcs
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591 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request |
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The L3845B is a specialized interface integrated circuit from STMicroelectronics, designed to provide DC loop termination for analog trunk lines. This IC features an on-chip polarity guard and meets the DC line characteristics of both CCITT and EIA RS 464 specifications.
Key functionalities include off-hook status detection, which activates a constant current generator when a typical 8 mA is flowing. It also supports a pulse dialing function by reducing the fixed DC voltage drop to exhibit a purely resistive impedance when the PULSE input is activated. The circuit utilizes a low external component count and provides high AC impedance when an external capacitor and a 20 K resistor are used.
This device is available in an 8-Mini DIP package and is suitable for through-hole mounting. It operates within a temperature range of -40°C to +70°C and has a maximum power dissipation of 800 mW at 70°C. The L3845B is designed for applications such as monitoring and digital current.
This is advanced information on a new product now in development or undergoing evaluation. Details are subject to change without notice.
The operating temperature range for the L3845B is -40°C to +70°C.
The L3845B is available in an 8-Mini DIP package.
The L3845B is used for monitoring and digital current applications.
Yes, the L3845B meets the DC line characteristics of either CCITT and EIA RS 464 specs.
The maximum line voltage for the L3845B is 20V, with a pulse duration of 10 ms maximum.
The maximum line current for the L3845B is 150 mA.