NTP3000 View Datasheet(PDF) - Unspecified
Part Name
Description
MFG CO.
'NTP3000' PDF : 37 Pages View PDF
Power Integrated Processor for Digital Amplifier
>0.1usec
~7us
NTP3000
Reset
5.3. Fault and protect Control
Initialization
Normal Operation
Figure 7 Reset timing
Figure 8 Protection Logic connection Diagram
NTP3000 protects internal power stage circuit and external power device with feedback between power
stage and protection logic as shown in Figure 8. When a power stage falls in protection condition, it shuts
down by itself informing protection logic ‘fault’ as shown in Figure 9. As soon as protection logic receives
the information, the output of ‘PROTECT’ becomes low to turn off all the power stages for a ‘Hold Time’
which is configurable. After ‘Hold Time’ has passed, protection logic tries to turn on power stage circuits
again. If power stage circuit still suffers from protection problem, protection logic keeps on turning on and
off until the condition which is configured on control registers.
Figure 9 Fault, Protect pin Timing Diagram
When FAULT signal is changed from high to low, PROTECT signal changes from high to low after
0.06usec. When this happens, PROTECT signal remains low even the FAULT signal changes to high.
Copyright © NeoFidelity, Inc. 2005
Preliminary datasheet – NeoFidelity reserves the right to change specifications at any time without prior notice
9
R0.73-11.2006
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