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부품번호 | CS5161 기능 |
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기능 | CPU 5-Bit Synchronous Buck Controller | ||
제조업체 | ON Semiconductor | ||
로고 | |||
전체 18 페이지수
www.DataSheet4U.com
CS5161, CS5161H
CPU 5−Bit Synchronous
Buck Controller
The CS5161/5161H are 5−bit synchronous dual N−Channel buck
controllers designed to provide unprecedented transient response for
today’s demanding high−density, high−speed logic. They operate
using a proprietary control method which allows a 100 ns response
time to load transients. The CS5161 is designed to operate over a
9−16 V range (VCC) using 12 V to power the IC and 5.0 V as the main
supply for conversion.
The CS5161H operates from a 12 V input as the main supply for
conversion using a discrete charge pump circuit to provide up to 20 V
for VCC2 and high side gate drive.
The CS5161/5161H are specifically designed to power
Pentium® III processors and other high performance core logic. They
include the following features: on board 5−bit DAC, short circuit
protection, 1.0% output tolerance, VCC monitor, and programmable
Soft Start capability. The CS5161/5161H are available in 16 pin
surface mount packages.
Features
• Dual N−Channel Design
• Excess of 1.0 MHz Operation
• 100 ns Transient Response
• 5−Bit DAC
• Backward Compatible with CS515X Family
• 30 ns Gate Rise/Fall Times
• 1.0% DAC Accuracy
• 5.0 V & 12 V Operation
• Remote Sense
• Programmable Soft Start
• Lossless Short Circuit Protection
• VCC Monitor
• 50 ns FET Nonoverlap Time
• V2™ Control Topology
• Current Sharing
• Overvoltage Protection
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SO−16
D SUFFIX
CASE 751B
MARKING
DIAGRAMS
16
CS5161
AWLYWW
1
A
WL, L
YY, Y
WW, W
= Assembly Location
= Wafer Lot
= Year
= Work Week
PIN CONNECTIONS
VID0 1
VID1
VID2
VID3
SS
VID4
COFF
VFFB
VFB
COMP
LGnd
VVCGCAT1E(L)
PGnd
VGATE(H)
VCC2
ORDERING INFORMATION
Device
CS5161GD16
CS5161GDR16
CS5161HGD16
CS5161HGDR16
Package
Shipping
SO−16
SO−16
SO−16
SO−16
48 Units/Rail
2500 Tape & Reel
48 Units/Rail
2500 Tape & Reel
© Semiconductor Components Industries, LLC, 2006
July, 2006 − Rev. 12
1
Publication Order Number:
CS5161/D
CS5161, CS5161H
ELECTRICAL CHARACTERISTICS (continued) (0°C < TA < +70°C; CS5161: 0°C < TJ < +85°C; CS5161H: 0°C < TJ < +125°C;
9.5 V < VCC1 < 14 V; CS5161: 5.0 V < VCC2 < 16 V; CS5161H: 5.0 V < VCC2 < 20 V; DAC Code: VID4 = VID2 = VID1 = VID0 =1; VID3 = 0;
CVGATE(L) and CVGATE(H) = 1.0 nF; COFF = 330 pF; CSS = 0.1 μF, unless otherwise specified.)
Characteristic
Test Conditions
Min Typ Max Unit
PWM Comparator
Transient Response
VFFB Bias Current
DAC
VFFB = 0 to 5.0 V to VGATE(H) = 9.0 V to 1.0 V;
VCC1 = VCC2 = 12 V
VFFB = 0 V
−
−
100 125 ns
0.3 − μA
Input Threshold
Input Pull Up Resistance
Pull Up Voltage
VID0, VID1, VID2, VID3, VID4
VID0, VID1, VID2, VID3, VID4
−
1.00 1.25 2.40
V
25 50 110 kΩ
4.85 5.00 5.15
V
Accuracy (all codes except 11111,
10110, 10101, 10100, 10011,
10010, 10001, 10000)
VID4
0
VID3
1
VID2
1
VID1
1
VID0
1
Measure VFB = COMP,
CS5161: 25°C ≤ TJ ≤ 85°C
CS5161H: 25°C ≤ TJ ≤ 125°C
−
−
−
± 1.0
%
1.2870 1.3000 1.3130
V
01110
−
1.3365 1.3500 1.3635
V
01101
−
1.3860 1.4000 1.4140
V
01100
−
1.4355 1.4500 1.4645
V
01011
−
1.4850 1.5000 1.5150
V
01010
−
1.5345 1.5500 1.5655
V
01001
−
1.5840 1.6000 1.6160
V
01000
−
1.6335 1.6500 1.6665
V
00111
−
1.6830 1.7000 1.7170
V
00110
−
1.7325 1.7500 1.7675
V
00101
−
1.7820 1.8000 1.8180
V
00100
−
1.8315 1.8500 1.8685
V
00011
−
1.8810 1.9000 1.9190
V
00010
−
1.9305 1.9500 1.9695
V
00001
−
1.9800 2.0000 2.0200
V
00000
−
2.0295 2.0500 2.0705
V
11111
−
1.2191 1.2440 1.2689
V
11110
−
2.0790 2.1000 2.1210
V
11101
−
2.1780 2.2000 2.2220
V
11100
−
2.2770 2.3000 2.3230
V
11011
−
2.3760 2.4000 2.4240
V
11010
−
2.4750 2.5000 2.5250
V
11001
−
2.5740 2.6000 2.6260
V
11000
−
2.6730 2.7000 2.7270
V
10111
−
2.7720 2.8000 2.8280
V
10110
−
2.8420 2.9000 2.9580
V
10101
−
2.9400 3.0000 3.0600
V
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4
4페이지 CS5161, CS5161H
VCC1
SS
VID0
VID1
VID2
VID3
VID4
VFB
COMP
VFFB
LGnd
− CVCoCm1pMaroantoitror
+
9.05 V
8.90V
5.0 V
60 μA
2.0 μA
5 BIT
DAC
Error
Amplifier
+
−
Slow Feedback
PWM
Comparator
−
+
2.5 V
Fast Feedback
1.0 V
−
+
CVFoFmBpLaorawtor
−
+
0.7 V
+
−
SS Low
Comparator
SS High
Comparator
Maximum
On−Time
Timeout
Normal
Off−Time
Timeout
Extended
Off−Time
Timeout
R Q FAULT
S Q FAULT
FAULT
Latch
VCC2
VGATE(H)
PGnd
VCC1
VGATE(L)
PGnd
RQ
SQ
PMW
Latch
Off−Time
Timeout
GATE(H) = ON
GATE(H) = OFF
OnCeOSFFhot
R
SQ
COFF
Time−Out
Timer
(30 μs)
Edge Triggered
Figure 2. Block Diagram
APPLICATIONS INFORMATION
THEORY OF OPERATION
V2 Control Method
The V2 method of control uses a ramp signal that is
generated by the ESR of the output capacitors. This ramp is
proportional to the AC current through the main inductor
and is offset by the value of the DC output voltage. This
control scheme inherently compensates for variation in
either line or load conditions, since the ramp signal is
generated from the output voltage itself. This control
scheme differs from traditional techniques such as voltage
mode, which generates an artificial ramp, and current mode,
which generates a ramp from inductor current.
COMP
PWM
Comparator
+
C
−
VGATE(H)
VGATE(L)
Ramp
Signal
VFFB
Error
Signal
Error
Amplifier −
E
+
Output
Voltage
Feedback
VFB
Reference
Voltage
Figure 3. V2 Control Diagram
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7
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부품번호 | 상세설명 및 기능 | 제조사 |
CS5160 | CPU 5-Bit Synchronous Buck Controller | ON Semiconductor |
CS5161 | CPU 5-Bit Synchronous Buck Controller | ON Semiconductor |
DataSheet.kr | 2020 | 연락처 | 링크모음 | 검색 | 사이트맵 |