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CS5165 датащи(PDF) 6 Page - Cherry Semiconductor Corporation

номер детали CS5165
подробное описание детали  Fast, Precise 5-Bit Synchronous Buck Controller for the Next Generation Low Voltage Pentium II Processors
PDF  19 Pages
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производитель  CHERRY [Cherry Semiconductor Corporation]
домашняя страница  http://www.cherrycorp.com/
Logo CHERRY - Cherry Semiconductor Corporation

CS5165 датащи(HTML) 6 Page - Cherry Semiconductor Corporation

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background image
Block Diagram
Q
VID1
ENABLE
SS
VID0
VCC
VGATE(H)
PGnd
VGATE(L)
VID2
VID3
COFF
Maximum
On-Time
Timeout
VCC
R
Q
S
COFF
One Shot
SS High
Comparator
FAULT
Latch
2.5V
Error Amplifier
7µA
VID4
-
+
-
+
-
+
VFB Low
Comparator
PWM
Comparator
SS Low
Comparator
R
Q
S
Q
R
Q
S
2µA
5V
60µA
Normal
Off-Time
Extended
Off-Time
Timeout
Time Out
Timer
(30µs)
Edge Triggered
Off-Time
Timeout
1.25V
FAULT
GATE(H) = ON
GATE(H) = OFF
PGnd
PWM
Latch
0.7V
COMP
Enable
Comparator
-
+
LGnd
VFB
1V
-
+
PWRGD
65µs
Delay
-
-
PWM Comp
Blanking
-
Circuit Bias
VCC Monitor
5 BIT
DAC
3.87V
3.95V
20k
-8.5%
+8.5%
FAULT
-
+
VCC
6
THRESHOLD ACCURACY
LOWER THRESHOLD
UPPER THRESHOLD
MIN
TYP
MAX
MIN
TYP
MAX
UNITS
% of Nominal DAC Output
-12
-8.5
-5
5
8.5
12
%
s
DAC CODE
VID4 VID3 VID2 VID1 VID0
0
1
0
0
0
1.487
1.546
1.606
1.775
1.834
1.893
V
0
1
0
0
1
1.443
1.501
1.558
1.722
1.779
1.837
V
0
1
0
1
0
1.399
1.455
1.511
1.670
1.725
1.781
V
0
1
0
1
1
1.355
1.409
1.463
1.617
1.671
1.724
V
0
1
1
0
0
1.311
1.363
1.416
1.565
1.617
1.669
V
0
1
1
0
1
1.267
1.318
1.368
1.512
1.562
1.613
V
0
1
1
1
0
1.223
1.272
1.321
1.460
1.508
1.557
V
0
1
1
1
1
1.179
1.226
1.273
1.407
1.454
1.501
V
1
1
1
1
1
1.097
1.141
1.185
1.309
1.353
1.397
V
Note 1: Guaranteed by design, not 100% tested in production.
Electrical Characteristics: 0˚C < TA < 70˚C; 0˚C < TJ < 125˚C; 8V < VCC < 14V;
2.8V DAC Code (VID4=VID2=VID1=VID0=1, VID3= 0), CGATE(H) = CGATE(L) = 3.3nF, COFF = 330pF, CSS= 0.1µF; Unless otherwise stated.



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