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ISL68221IRAZ Datasheet(PDF) 91 Page - Renesas Technology Corp

Part # ISL68221IRAZ
Description  Digital Triple Output, 3-Phase PWM Controller
PDF  98 Pages
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Manufacturer  RENESAS [Renesas Technology Corp]
Direct Link  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

ISL68221IRAZ Datasheet(HTML) 91 Page - Renesas Technology Corp

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ISL68221
10. PMBus Command Detail
FN9331 Rev.1.00
Page 91 of 97
Oct.1.20
10.87 PEAK_OCUC_COUNT (E9h)
Definition: Sets the number of consecutive switch cycles that can exceed the peak per-phase overcurrent limit
threshold before generating a fault within a rail. A value of 0 disables the fault shutdown and produces a constant
current effect.
Access: Paged
Data Length in Bytes: 2
Data Format: Bit Field
Type: R/W
Equation: Peak UC Count = (Direct value [15:8]), Peak OC Count = (Direct value [7:0])
Units: Cycles
Default Value: 0606h (6 cycles OC and 6 cycles UC)
Range: 1 cycle to 255 cycles
Command
PEAK_OCUC_COUNT (E9h)
Format
Bit Field
Bit Position
15
14
13
12
11
10
987
6543
210
Access
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Function
See Following Table
Default Value
0000
01100
0000
110
Bit Number
Meaning
15:8
Number of consecutive switch cycles exceeding peak UC limit before fault
7:0
Number of consecutive switch cycles exceeding peak OC limit before fault



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