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MCP19124-E/MJ bảng dữ liệu(PDF) 51 Page - Microchip Technology

tên linh kiện MCP19124-E/MJ
Giải thích chi tiết về linh kiện  Digitally-Enhanced Power Analog Synchronous Low-Side Dual-Loop PWM Controller
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MCP19124-E/MJ bảng dữ liệu(HTML) 51 Page - Microchip Technology

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 2016 Microchip Technology Inc.
DS20005619A-page 51
MCP19124/5
6.12.2
ERROR AMPLIFIER DISABLES
The error amplifiers can be disabled such that its output
relinquishes control of the loop to the other error
amplifier. Since the error amplifier outputs are clamped
to each other the disabled amplifier output will follow
the enabled amplifier output but will not be in control of
the loop. If both error amplifiers are disabled, both
outputs are pulled low (no demand). The EADIS bits
default to zero and the error amplifiers are enabled
during normal operation.
REGISTER 6-14:
ABECON: ANALOG BLOCK ENABLE CONTROL REGISTER
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
DIGOEN
DSEL2
DSEL1
DSEL0
DRUVSEL
EA2DIS
EA1DIS
ANAOEN
bit 7
bit 0
Legend:
R = Readable bit
W = Writable bit
U = Unimplemented bit, read as ‘0’
u = Bit is unchanged
x = Bit is unknown
-n = Value at POR
‘1’
= Bit is set
‘0’
= Bit is cleared
bit 7
DIGOEN: DIG Test MUX to GPA0 Connection Control bit
1
= DIG Test MUX output is connected to external pin GPA0
0
= DIG Test MUX output is not connected to external pin GPA0
bit 6-4
DSEL<2:0>: DIG Test MUX Signal Channel Select bits
000
= QRS (output of DESAT comparator)
001
= PWM_L (PWM output after monostable)
010
= PWM (oscillator output from the microcontroller)
011
= TMR2EQ (when TMR2 equals PR2)
100
= OV (overvoltage comparator output)
101
= SWFRQ (switching frequency output)
110
= SDRV_ON_ONESHOT (200 ns one-shot signal to reset WDM logic)
111
= Unimplemented
bit 3
DRUVSEL: Selects gate drive undervoltage lockout level
1
= Gate Drive UVLO set to 5.4V
0
= Gate Drive UVLO set to 2.7V
bit 2
EA2DIS: Voltage Error Amplifier Disable bit
1
= Disables the voltage error amplifier (Enables Output OV Comparator Protection)
0
= Enables the voltage error amplifier
bit 1
EA1DIS: Current Error Amplifier Disable bit
1
= Disables the current error amplifier
0
= Enables the current error amplifier
bit 0
ANAOEN: Analog MUX Output Control bit
1
= Analog MUX output is connected to external pin GPA0
0
= Analog MUX output is not connected to external pin GPA0



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