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CS5308 데이터시트 PDF




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광범위하게 사용되는 반도체 소자입니다.


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부품번호 CS5308 기능
기능 Two-Phase PWM Controller
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CS5308 데이터시트, 핀배열, 회로
www.DataSheet4U.com
CS5308
Two−Phase PWM Controller
with Integrated Gate
Drivers for VRM 8.5
The CS5308 is a secondgeneration, twophase step down
controller that incorporates all control functions required to power
next generation processors. Proprietary multiphase architecture
guarantees balanced load current distribution and reduces overall
solution cost in high current applications. Enhanced V2control
architecture provides the fastest possible transient response, excellent
overall regulation, and ease of use. The CS5308 is a second generation
PWM controller because it optimizes transient response by combining
traditional Enhanced V2 with an internal PWM ramp and
fastfeedback directly from VCORE to the internal PWM comparator.
These enhancements provide greater design flexibility, facilitate use
and reduce output voltage jitter.
The multiphase architecture reduces input and output filter ripple,
allowing for a significant reduction in filter size and inductor values
with a corresponding increase in the output inductor current slew rate.
This approach allows a considerable reduction in input and output
capacitor requirements, as well as reducing overall solution size and
cost.
The CS5308 includes VTT monitoring and timing, VTT Power
Good (VTTPGD), Power Good (PWRGD), and internal MOSFET gate
drivers to provide a “fully integrated solution” to simplify design,
minimize circuit board area, and reduce overall system cost.
Features
Enhanced V2 Control Method
Internal PWM Ramp
FastFeedback Directly from VCORE
5Bit DAC with 1% Tolerance
Adjustable Output Voltage Positioning
200 kHz to 800 kHz Operation Set by Resistor
Current Sensed through Sense Resistors or Output Inductors
Adjustable Hiccup Mode Current Limit
Overvoltage Protection through Synchronous MOSFETs
Individual Current Limits for Each Phase
OnBoard Current Share Amplifiers
3.3 V, 1.0 mA Reference Output
VTT Monitoring and VTT Power Good (VTTPGD)
VCORE Power Good
On/Off Control (through COMP Pin)
Improved Noise Immunity
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28
1
SO28L
DW SUFFIX
CASE 751F
MARKING
DIAGRAM
28
CS5308
AWLYYWW
1
A = Assembly Location
WL, L = Wafer Lot
YY, Y = Year
WW, W = Work Week
PIN CONNECTIONS
1
COMP
VFB
VDRP
REF
ILIM
VID25
VID0
VID1
VID2
VID3
PWRGD
CSREF
CS1
CS2
28ROSC
LGND
VCCL
VCCH1
GATE(H)1
GATE(L)1
PGND
VCCL12
GATE(L)2
GATE(H)2
VCCH2
VTTPGD
VTTCT
VTT
ORDERING INFORMATION
Device
Package
Shipping
CS5308GDW28
SO28L 27 Units/Rail
CS5308GDWR28 SO28L 1000 Tape & Reel
© Semiconductor Components Industries, LLC, 2006
July, 2006 Rev. 6
1
Publication Order Number:
CS5308/D




CS5308 pdf, 반도체, 판매, 대치품
CS5308
ELECTRICAL CHARACTERISTICS (0°C < TA < 70°C; 0°C < TJ < 125°C; 9.0 V < VCCH1 = VCCH2 < 20 V;
4.5 V < VCCL =VCCL12 < 14 V; CGATE = 3.3 nF, RROSC = 32.4 k, CCOMP = 0.1 mF, CREF = 0.1 mF, DAC Code 01000 (1.65 V),
CVCC = 0.1 mF; unless otherwise specified.)
Characteristic
Test Conditions
Min Typ Max
Voltage Identification DAC
Accuracy (all codes)
VID25
0
VID3
0
VID2
1
VID1
0
VID0
0
Measure VFB = COMP
1.039
1.050
± 1.0
1.061
10100
1.064
1.075
1.086
00011
1.089
1.100
1.111
10011
1.114
1.125
1.136
00010
1.139
1.150
1.162
10010
1.163
1.175
1.187
00001
1.188
1.200
1.212
10001
1.213
1.225
1.237
00000
1.238
1.250
1.263
10000
1.262
1.275
1.288
01111
1.287
1.300
1.313
11111
1.312
1.325
1.338
01110
1.337
1.350
1.364
11110
1.361
1.375
1.389
01101
1.386
1.400
1.414
11101
1.411
1.425
1.439
01100
1.436
1.450
1.465
11100
1.460
1.475
1.490
01011
1.485
1.500
1.515
11011
1.510
1.525
1.540
01010
1.535
1.550
1.566
11010
1.559
1.575
1.591
01001
1.584
1.600
1.616
11001
1.609
1.625
1.641
01000
1.634
1.650
1.667
11000
1.658
1.675
1.692
00111
1.683
1.700
1.717
10111
1.708
1.725
1.742
00110
1.733
1.750
1.768
10110
1.757
1.775
1.793
00101
1.782
1.800
1.818
10101
1.807
1.825
1.843
Input Threshold
Input Pullup Resistance
Pullup Voltage
VID25, VID3, VID2, VID1, VID0
VID25, VID3, VID2, VID1, VID0
1.00 1.25
1.5
25 50 100
3.15 3.3 3.45
Unit
%
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
kW
V
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CS5308 전자부품, 판매, 대치품
CS5308
ELECTRICAL CHARACTERISTICS (continued) (0°C < TA < 70°C; 0°C < TJ < 125°C; 9.0 V < VCCH1 = VCCH2 < 20 V;
4.5 V < VCCL =VCCL12 < 14 V; CGATE = 3.3 nF, RROSC = 32.4 k, CCOMP = 0.1 mF, CREF = 0.1 mF, DAC Code 01000 (1.65 V),
CVCC = 0.1 mF; unless otherwise specified.)
Characteristic
Test Conditions
Min Typ Max
General Electrical Specifications
VCCL Operating Current
VCCL12 Operating Current
VCCH1 Operating Current
VCCH2 Operating Current
VCCL Start Threshold
VCCL Stop Threshold
VCCL Hysteresis
VCCH1 Start Threshold
VCCH1 Stop Threshold
VCCH1 Hysteresis
Reference Output
VFB = COMP (no switching)
VFB = COMP (no switching)
VFB = COMP (no switching)
VFB = COMP (no switching)
GATEs switching, COMP charging
GATEs stop switching, COMP discharging
GATEs not switching, COMP not charging
GATEs switching, COMP charging
GATEs stop switching, COMP discharging
GATEs not switching, COMP not charging
20.5 26.0
8.0 11
2.8 4.0
2.5 3.5
4.05 4.3
4.5
3.75 4.1 4.35
100 200 300
8.0 8.5 9.0
7.5 8.0 8.5
300 500 700
VREF Output Voltage
Internal Ramp
0 mA < I(VREF) < 1.0 mA
3.2 3.3 3.4
Ramp Height @ 50% DTC
CS1 = CS2 = CSREF
5. Guaranteed by design. Not tested in production.
125
Unit
mA
mA
mA
mA
V
V
mV
V
V
mV
V
mV
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