CS5165H Datasheet PDF - Cherry Semiconductor Corporation
Part Number | CS5165H | |
Description | Fast/ Precise 5-Bit Synchronous Buck Controller for the Next Generation Low Voltage Pentium II Processors | |
Manufacturers | Cherry Semiconductor Corporation | |
Logo | ||
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Preview 1 page No Preview Available ! CS5165H
Fast, Precise 5-Bit Synchronous Buck Controller
for the Next Generation Low Voltage Pentium® II Processors
Description
Features
The CS5165H synchronous 5-bit NFET
buck controller is optimized to manage
the power of the next generation
Pentium®II processors. It’s V2™ control
architecture delivers the fastest transient
response (100ns), and best overall voltage
regulation in the industry today. It’s fea-
ture rich design gives end users the maxi-
mum flexibility to implement the best
price/performance solutions for their end
products.
The CS5165H has been carefully crafted
to maximize performance and protect the
processor during operation. It has a 5-bit
DAC on board that holds a ±1% tolerance
over temperature. Its on board pro-
grammable soft start insures a control
start up, and the FET nonoverlap circuit-
ry ensures that both FETs do not conduct
simultaneously.
The on board oscillator can be pro-
grammed up to 1MHz to give the design-
er maximum flexibility in choosing exter-
nal components and setting systems
costs.
The CS5165H protects the processor dur-
ing potentially catastrophic events like
overvoltage (OVP) and short circuit. The
OVP feature is part of the V2™ architec-
ture and does not require any additional
components. During short circuit, the
controller pulses the MOSFETs in a “hic-
cup” mode (3% duty cycle) until the fault
is removed. With this method, the
MOSFETs do not overheat or self
destruct.
The CS5165H is designed for use in both
single processor desktop and multipro-
cessor workstation and server applica-
tions. The IC can be powered from either
single or dual 5V, 12V power supplies.
The CS5165H’s current sharing capability
allows the designer to build multiple par-
allel and redundant power solutions for
multiprocessor systems.
The CS5165H contains other control and
protection features such as Power Good,
ENABLE, and adaptive voltage position-
ing. It is available in a 16 lead SOIC wide
body package.
Application Diagram
5V to 2.8V @ 14.2A for 300MHz Pentium®II
12V 5V
1µF 1200µF/10V x 3
s V2™ Control Topology
s Dual N Channel Design
s 100ns Controller Transient
Response
s Excess of 1Mhz Operation
s 5 Bit DAC with 1% Tolerance
s Power Good Output With
Internal Delay
s Enable Input Provides
Micropower Shutdown Mode
s Complete Pentium® II System
Requires 18 Components
s 5V and 12V Operation Using
Either Dual or Single Supplies
s Adaptive Voltage Positioning
s Remote Sense Capability
s Current Sharing Capability
s VCC Monitor
s Hiccup Mode Short Circuit
Protection
s Overvoltage Protection (OVP)
s Programmable Soft Start
s 150ns PWM Blanking
s 65ns FET Non-Overlap
s 40ns Gate Rise and Fall Times
(3.3nF load)
0.1µF
0.1 µF
330pF
SS
COMP
COFF
VID4
VID3
VID2
VID1
VID0
CS5165H
VCC
GATE(H)
GATE(L)
PGnd
LGnd
VFB
PWRGD
ENABLE
IRL3103
PCB
1.2µH trace 6mΩ
VCC
IRL3103
3.3K
1000pF
1200µF
10V x 5
VSS
PWRGD
ENABLE
VID0
VID1
VID2
VID3
VID4
Pentium® II
System
V2 is a trademark of Switch Power, Inc.
Pentium is a registered trademark of Intel Corporation.
Rev. 12/24/98
1
Package Options
16 Lead SO WIDE
VID0 1
VID1
VID2
VID3
SS
VID4
COFF
ENABLE
VFB
COMP
LGnd
PWRGD
GATE(L)
PGnd
GATE(H)
VCC
Cherry Semiconductor Corporation
2000 South County Trail, East Greenwich, RI 02818
Tel: (401)885-3600 Fax: (401)885-5786
Email: [email protected]
Web Site: www.cherry-semi.com
A ® Company
|
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Electrical Characteristics: 0˚C < TA < 70˚C; 0˚C < TJ < 125˚C; 8V < VCC < 20V; 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.
PARAMETER
VID4VID3 VID2 VID1 VID0
01 0 1 0
01 0 1 1
01 1 0 0
01 1 0 1
01 1 1 0
01 1 1 1
11 1 1 1
Input Threshold
Input Pull-up Resistance
Input Pull-up Voltage
TEST CONDITIONS
VID4, VID3, VID2, VID1, VID0
VID4, VID3, VID2, VID1, VID0
MIN
1.574
1.525
1.475
1.426
1.376
1.327
1.223
1.000
25
4.85
TYP
1.590
1.540
1.490
1.440
1.390
1.340
1.247
1.250
50
5.00
MAX
UNIT
1.606
1.555
1.505
1.455
1.405
1.353
1.273
2.400
100
5.15
V
V
V
V
V
V
V
V
kΩ
V
s Power Good Output
Low to High Delay
High to Low Delay
Output Low Voltage
Sink Current Limit
VFB = (0.8 × VDAC) to VDAC
VFB = VDAC to (0.8 × VDAC)
VFB = 2.4V, IPWRGD = 500µA
VFB = 2.4V, PWRGD = 1V
30 65 110 µs
30 75 120 µs
0.2 0.3 V
0.5 4.0 15.0 mA
THRESHOLD ACCURACY
% of Nominal DAC Output
s DAC CODE
VID4 VID3 VID2 VID1 VID0
100 0 0
100 0 1
100 1 0
100 1 1
101 0 0
101 0 1
101 1 0
101 1 1
110 0 0
110 0 1
110 1 0
110 1 1
111 0 0
111 0 1
111 1 0
000 0 0
000 0 1
000 1 0
000 1 1
001 0 0
001 0 1
001 1 0
001 1 1
LOWER THRESHOLD
MIN
TYP
MAX
-12 -8.5 -5
UPPER THRESHOLD
MIN
TYP
MAX
5 8.5
12
UNIT
%
3.115
3.027
2.939
2.851
2.763
2.675
2.587
2.499
2.411
2.323
2.235
2.147
2.059
1.971
1.883
1.839
1.795
1.751
1.707
1.663
1.619
1.575
1.531
3.239
3.148
3.056
2.965
2.873
2.782
2.690
2.599
2.507
2.416
2.324
2.233
2.141
2.050
1.958
1.912
1.867
1.821
1.775
1.729
1.684
1.638
1.592
3.363
3.268
3.173
3.078
2.983
2.888
2.793
2.698
2.603
2.508
2.413
2.318
2.223
2.128
2.033
1.986
1.938
1.810
1.843
1.796
1.748
1.701
1.653
3.717
3.612
3.507
3.402
3.297
3.192
3.087
2.982
2.877
2.772
2.667
2.562
2.457
2.352
2.250
2.195
2.142
2.090
2.037
1.985
1.932
1.880
1.827
3.841
3.732
3.624
3.515
3.407
3.298
3.190
3.081
2.973
2.864
2.756
2.647
2.539
2.430
2.322
2.268
2.213
2.159
2.105
2.051
1.996
1.942
1.888
3.965
3.853
3.741
3.629
3.517
3.405
3.293
3.181
3.069
2.957
2.845
2.733
2.621
2.509
2.397
2.341
2.285
2.229
2.173
2.117
2.061
2.005
1.949
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
5
Preview 5 Page |
Part DetailsOn this page, you can learn information such as the schematic, equivalent, pinout, replacement, circuit, and manual for CS5165H electronic component. |
Information | Total 20 Pages | |
Link URL | [ Copy URL to Clipboard ] | |
Download | [ CS5165H.PDF Datasheet ] |
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