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ADP1052ACPZ-R7 Folha de dados(PDF) 89 Page - Analog Devices

Nome de Peças ADP1052ACPZ-R7
Descrição Electrónicos  Digital Controller for Isolated Power Supply with PMBus Interface
PDF  113 Pages
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Fabricante Electrônico  AD [Analog Devices]
Página de início  http://www.analog.com
Logo AD - Analog Devices

ADP1052ACPZ-R7 Folha de dados(HTML) 89 Page - Analog Devices

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Data Sheet
ADP1052
Rev. B | Page 89 of 113
Bits
Bit Name/Function
R/W
Description
[2:0]
SR_RC_FAULT_LIMIT
R/W
These bits program the reference voltage for CS2 reverse current comparator for generating the
SR_RC_FAULT flag. The difference in voltage between the CS2+ and CS2− pins is compared with this
limit. This comparator is an analog comparator.
Bit 2
Bit 1
Bit 0
Value (mV)
0
0
0
−3
0
0
1
−6
0
1
0
−9
0
1
1
−12
1
0
0
−15
1
0
1
−18
1
1
0
−21
1
1
1
−24
Table 132. Register 0xFE1B—CS2 Deep Light Load Mode Setting
Bits
Bit Name/Function
R/W
Description
7
Reserved
R/W
Reserved.
6
CS1 cycle-by-cycle
current-limit ref
R/W
0 = the CS1 cycle-by-cycle current-limit reference is 1.2 V.
1 = the CS1 cycle-by-cycle current-limit reference is 0.25 V.
5
Reserved
R/W
Reserved.
4
CS2 averaging
speed for triggering
the IOUT_OC_FAULT
flag
R/W
0 = the 9-bit CS2 (output current) averaging speed is used for triggering the IOUT_OC_FAULT flag.
The basic VS voltage change rate for constant current control is 1.18 mV/ms.
1 = the 7-bit CS2 (output current) averaging speed is used for triggering the IOUT_OC_FAULT flag. The
basic VS voltage change rate for constant current control is 4.72 mV/ms.
[3:0]
CS2 deep light load
mode threshold
R/W
These bits set the current limit on the CS2 ADC to enter the deep light load mode value. This value
determines the point at which the DEEP_LIGHT_LOAD flag is set and some PWM outputs are disabled.
The averaging speed and the hysteresis are programmed in Register 0xFE1E.
Bit 3
Bit 2
Bit 1
Bit 0
Deep Light Load Threshold (mV)
328 μs
164 μs
82 μs
41 μs
0
0
0
0
0
0
0
0
0
0
0
1
0.9375
1.8750
3.7500
7.5000
0
0
1
0
1.8750
3.7500
7.5000
15.000
0
0
1
1
2.8125
5.6250
11.250
22.500
0
1
0
0
3.7500
7.5000
15.000
30.000
0
1
0
1
4.6875
9.3750
18.750
37.500
0
1
1
0
5.6250
11.250
22.500
45.000
0
1
1
1
6.5625
13.125
26.250
52.500
1
0
0
0
7.5000
15.000
30.000
60.000
1
0
0
1
8.4375
16.875
33.750
67.500
1
0
1
0
9.3750
18.750
37.500
75.000
1
0
1
1
10.313
20.625
41.250
82.500
1
1
0
0
11.250
22.500
45.000
90.000
1
1
0
1
12.188
24.375
48.750
97.500
1
1
1
0
13.125
26.250
52.500
105.00
1
1
1
1
14.063
28.125
56.250
112.50



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