SX1231-31SKB433 Semtech, SX1231-31SKB433 Datasheet - Page 22

• Manufacturer Part Number: SX1231-31SKB433
• Description: USB Kit - SX1231 433Mhz
• Manufacturer: Semtech

3.4.7. Over Current Protection
An over current protection block is built-in the chip. It helps preventing surge currents required when the transmitter is used
at its highest power levels, thus protecting the battery that may power the application. The current clamping value is
controlled by OcpTrim bits in RegOcp, and is calculated with the following formula:
Note
Rev 4 - Nov 2010
ADVANCED COMMUNICATIONS & SENSING
Imax sets the maximum current drawn by the final PA stage, and does not account for the PA drivers and
frequency synthesizer. Global current drain on Vbat will be higher.
Imax
=
45
+
5 OcpTrim
×
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(
mA
)
DATASHEET
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SX1231