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ADP1048WARQZ-R7 датащи(PDF) 13 Page - Analog Devices

номер детали ADP1048WARQZ-R7
подробное описание детали  Digital Power Factor Correction Controller with Accurate AC Power Metering
PDF  82 Pages
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производитель  AD [Analog Devices]
домашняя страница  http://www.analog.com
Logo AD - Analog Devices

ADP1048WARQZ-R7 датащи(HTML) 13 Page - Analog Devices

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Data Sheet
ADP1048W
Figure 5. Fast Overcurrent Protection Schemes
Figure 6. Level Shifting and Threshold for OCP
Table 5. Programmable Options for Fast Overcurrent Protection
Parameter
Values or Options
Comments
Debounce Time
40 ns, 80 ns, 120 ns, 240 ns
Register 0xFE3D, Bits[4:3]
Blanking Time
40 ns, 80 ns, 120 ns, 160 ns, 200 ns, 400 ns, 600 ns, 800 ns
Blanking from the leading edge;
Register 0xFE3D, Bits[2:0]
Propagation Delay
140 ns typical
Fixed value; does not include blanking or
debounce
Threshold Value and Polarity
500 mV (negative); 1500 mV (positive)
Fixed values
Level Shifting Current Sources
60 μA, 80 μA, 100 μA, 120 μA (negative)
Register 0xFE3E, Bits[7:5]
20 μA, 40 μA, 60 μA, 80 μA (positive)
Actions for Fast OCP
Ignore (still terminates the PWM pulse); allow n switching
cycles, then shut down and soft start; allow n switching
cycles, then shut down and wait for PSON signal
n = 1, 2, 4, 8; Register 0xFE00, Bits[7:6]
OCP
ILIM
PGND
20µA TO
80µA
1500mV
VDD
ADP1048W
IM
IL
OCP
ILIM
PGND
60µA TO
120µA
500mV
VDD
ADP1048W
LEVEL SHIFTING
10k × 120µA = 1.2V
LEVEL SHIFTING
10k × 80µA = 0.8V
500mV
0mV
1500mV
0mV
Rev. 0 | Page 13 of 82



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