MP8125 – LNB POWER SUPPLY AND CONTROL VOLTAGE REGULATOR

MP8125 Rev. 1.11

www.MonolithicPower.com

4

5/9/2013

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Parameter

Symbol Condition

Min

Typ

Max

Units

TONE Signal

Tone Signal Frequency

20

22

24

kHz

2

V

EXTM Input Logic Threshold

0.8

V

Delay Time of Tone Signal

Activated or Deactivated

(5)

Delay time after EXTM goes

high or low

TONE

1.5

f

Peak-to-Peak Amplitude

0.55

0.65

0.9

V

Rise and Fall Time

8

μs

Over-Current Protection

Output Current Limit

600

850

1100

mA

Dynamic Overload

Protection Off Time

Time of attempt to restart

2

s

Dynamic Overload

Protection On Time

Time to onset of shutdown

50

ms

POK

POK Upper Trip Threshold

(5)

12

%

POK Lower Trip Threshold

-12

%

POK Output Lower Voltage

0.3

V

Thermal Protection

Over Temperature

Shutdown

(5)

150

°C

OTP Hysteresis

20

°C

Note:

5) Guaranteed by design.

6) Shall withstand the back voltage for an indefinite period of time. On removal of the fault condition the device returns to normal operation