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CS5151HのメーカーはON Semiconductorです、この部品の機能は「CPU 4-Bit Nonsynchronous Buck Controller」です。 |
部品番号 | CS5151H |
| |
部品説明 | CPU 4-Bit Nonsynchronous Buck Controller | ||
メーカ | ON Semiconductor | ||
ロゴ | |||
このページの下部にプレビューとCS5151Hダウンロード(pdfファイル)リンクがあります。 Total 16 pages
CS5151H
CPU 4−Bit Nonsynchronous
Buck Controller
The CS5151H is a 4−bit nonsynchronous N−Channel buck
controller. It is designed to provide unprecedented transient response
for today’s demanding high−density, high−speed logic. The regulator
operates using a proprietary control method, which allows a 100 ns
response time to load transients. The CS5151H is designed to operate
over a 4.25−20 V range (VCC) using 12 V to power the IC and 5.0 V or
12 V as the main supply for conversion.
The CS5151H is specifically designed to power Pentium®
processors with MMX™ Technology and other high performance core
logic. It includes the following features: on board, 4−bit DAC, short
circuit protection, 1.0% output tolerance, VCC monitor, and
programmable Soft Start capability. The CS5151H is upwards
compatible with the 5−bit CS5156H, allowing the mother board
designer the capability of using either the CS5151H or the CS5156H
with no change in layout. The CS5151H is available in 16 pin surface
mount package.
Features
• N−Channel Design
• Excess of 1.0 MHz Operation
• 100 ns Transient Response
• 4−Bit DAC
• Upward Compatible with 5−Bit CS5155H/CS5156H
• 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
• Adaptive Voltage Positioning
• V2™ Control Topology
• Current Sharing
• Overvoltage Protection
http://onsemi.com
MARKING
DIAGRAM
16
1
SOIC−16
D SUFFIX
CASE 751B
16
CS5151H
AWLYWW
1
A
WL, L
YY, Y
WW, W
= Assembly Location
= Wafer Lot
= Year
= Work Week
PIN CONNECTIONS
1
VID0
VID1
VID2
VID3
SS
NC
COFF
VFFB
16 VFB
COMP
LGND
VCC1
NC
PGND
VGATE
VCC2
ORDERING INFORMATION
Device
CS5151HGD16
CS5151HGDR16
Package
Shipping
SO−16
SO−16
48 Units/Rail
2500 Tape & Reel
© Semiconductor Components Industries, LLC, 2006
July, 2006 − Rev. 4
1
Publication Order Number:
CS5151H/D
1 Page CS5151H
ELECTRICAL CHARACTERISTICS (0°C < TA < +70°C; 0°C < TJ < +125°C; 8.0 V < VCC1 < 14 V; 5.0 V < VCC2 < 20 V;
DAC Code: VID2 = VID1 = VID0 = 1; VID3 = 0; CVGATE = 1.0 nF; COFF = 330 pF; CSS = 0.1 μF, unless otherwise specified.)
Characteristic
Test Conditions
Min Typ Max
Error Amplifier
VFB Bias Current
Open Loop Gain
Unity Gain Bandwidth
VFB = 0 V
1.25 V < VCOMP < 4.0 V; Note 2
Note 2
− 0.3 1.0
50 60
−
500 3000
−
COMP SINK Current
COMP SOURCE Current
COMP CLAMP Current
COMP High Voltage
COMP Low Voltage
PSRR
VCC1 Monitor
Start Threshold
VCOMP = 1.5 V; VFB = 3.0 V; VSS > 2.0 V
VCOMP = 1.2 V; VFB = 2.7 V; VSS = 5.0 V
VCOMP = 0 V; VFB = 2.7 V
VFB = 2.7 V; VSS = 5.0 V
VFB = 3.0 V
8.0 V < VCC1 < 14 V @ 1.0 kHz; Note 2
Output switching
0.4 2.5 8.0
30 50 80
0.4 1.0 1.6
4.0 4.3 5.0
− 160 600
60 85
−
3.75 3.90 4.05
Stop Threshold
Output not switching
3.70 3.85 4.00
Hysteresis
Start−Stop
− 50 −
DAC
Input Threshold
Input Pull Up Resistance
Pull Up Voltage
VID0, VID1, VID2, VID3
VID0, VID1, VID2, VID3
−
1.00 1.25 2.40
25 50 100
4.85 5.00 5.15
Accuracy (all codes except 1111)
VID3
1
VID2
1
VID1
1
VID0
1
Measure VFB = VCOMP, 25°C ≤ TJ ≤ 125°C
−
− − 1.0
1.2191
1.2440
1.2689
1110
−
2.1186
2.1400
2.1614
1101
−
2.2176
2.2400
2.2624
1100
−
2.3166
2.3400
2.3634
1011
−
2.4156
2.4400
2.4644
1010
−
2.5146
2.5400
2.5654
1001
−
2.6136
2.6400
2.6664
1000
−
2.7126
2.7400
2.7674
0111
−
2.8116
2.8400
2.8684
0110
−
2.9106
2.9400
2.9694
0101
−
3.0096
3.0400
3.0704
0100
−
3.1086
3.1400
3.1714
0011
−
3.2076
3.2400
3.2724
0010
−
3.3066
3.3400
3.3734
0001
−
3.4056
3.4400
3.4744
0000
−
3.5046
3.5400
3.5754
2. Guaranteed by design, not 100% tested in production.
Unit
μA
dB
kHz
mA
μA
mA
V
mV
dB
V
V
mV
V
kΩ
V
%
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
http://onsemi.com
3
3Pages CS5151H
VCC1
SS
VID0
VID1
VID2
VID3
VFB
COMP
VFFB
LGND
− CVCoCm1pMaroantoitror
+
3.90 V
3.85V
5.0 V
60 μA
2.0 μA
4 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
RQ
SQ
PMW
Latch
Off−Time
Timeout
GATE = ON
GATE = OFF
OnCeOSFFhot
R
SQ
PWM COMP
Time−Out
Timer
(30 μs)
Edge Triggered
VCC2
VGATE
PGND
COFF
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
−
Ramp
Signal
VFFB
Error
Signal
Error
Amplifier −
E
+
Output
Voltage
Feedback
VFB
Reference
Voltage
Figure 3. V2 Control Diagram
http://onsemi.com
6
6 Page | |||
ページ | 合計 : 16 ページ | ||
|
PDF ダウンロード | [ CS5151H データシート.PDF ] |
データシートを活用すると、その部品の主な機能と仕様を詳しく理解できます。 ピン構成、電気的特性、動作パラメータ、性能を確認してください。 |
部品番号 | 部品説明 | メーカ |
CS5151 | CPU 4-Bit Nonsynchronous Buck Controller | Cherry Semiconductor Corporation |
CS5151 | CPU 4-Bit Nonsynchronous Buck Controller | ON Semiconductor |
CS5151GD16 | CPU 4-Bit Nonsynchronous Buck Controller | Cherry Semiconductor Corporation |
CS5151GDR16 | CPU 4-Bit Nonsynchronous Buck Controller | Cherry Semiconductor Corporation |