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Partname: | L9219A |
Description: | Low-Cost Line Interface with Reverse Battery and Dual Current Limit |
Manufacturer: | Agere Systems |
Datasheet: | PDF (397K). Click here to download *) |
The L9219 requires a 5 V power supply and single battery to operate. This device offers forward and reverse battery operation. The rate of battery reversal may be ramped to meet international requirements. Additionally, a low-power scan mode, wherein all circuitry except the off-hook supervision is shut down to conserve power, is available. The dc current limit may be programmed via a single external resistor. Via the logic table, the current limit may be increased a nominal 42% above the value set by the IPROG resistor, giving the user a high-low current limit option. |
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Click here to download L9219A Datasheet*) |
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