Application Note 1846
Designer’s Guide to the ISL95813 Evaluation Board
Description
What’s Needed
The ISL95813 single-phase controller provides a fully
compliant VR12.6 power supply solution for Intel™
microprocessors. It provides a tightly regulated output voltage
that is programmed through a high speed serial bus interface
with the CPU. This interface also allows the CPU to acquire
real-time information from the voltage regulator (VR), which
includes load current and VR temperature.
The following materials will be needed to perform testing on
the ISL95813:
Based on Intersil's Robust Ripple Regulator (R3™) technology,
the PWM modulator provides faster transient response and
settling time when compared against traditional modulation
schemes. Its variable frequency topology also allows for
natural period stretching discontinuous conduction mode
(DCM) for increased efficiency and power savings in light load
situations.
• Electronic load
The ISL95813 has several other key features that include: DCR
current sensing with single NTC thermal compensation;
discrete resistor current sensing; differential remote voltage
feedback; and user-programmable boot voltage, IMAX, TMAX,
voltage transition slew rate, and switching frequency.
What’s Inside
The Evaluation Board Kit contains the following documents:
• ISL95813EV1Z Rev C Board
• 5V, 3A power supply
• Adjustable 20A Power Supply (Up to 20V)
• 12V, 3A power supply (optional, used with on-board load
generator)
• 4-channel oscilloscope
• Precision multi-meter
• Gen 4 Intel VT Tool
- To use the SVID emulator hardware and software instead
of the VT Tool, resistors R10, R12, and R16 must be
depopulated
Startup Procedure
1. Set the 5V supply to 5V and keeping the output off, connect
the (+) end to P1 and the (-) end to P4.
2. Set the second supply to the desired input voltage
(4.6V-19V) and with the output off, connect the (+) end to
J9 and the (-) end to J12.
3. If using the on-board load generator set the third supply to
12V and with the output off, connect the (+) end to P2 and
the (-) end to P3.
• ISL95813 datasheet
• AN1846 (this document)
4. Ensure jumpers J1, J17, and J19 are shorted. S1 and S2
should be in the OFF position.
5. If using Intel’s test tool, plug the interposer and tool into the
CPU socket.
6. Turn on the 5V supply and then the VIN supply.
7. Plug in the power cable to the VT Tool if in place.
8. Finally, if using the on board transient generator power on
the 12V supply.
9. Flip S1 to the ON position. D1 should change from RED to
GREEN.
10. Measure VOUT with a multi-meter from TP9 (+) to TP10 (-).
It should read 1.7V ±8.5mV. If using the VT Tool measure
VOUT across TP29 (+) and TP28 (-).
11. Validation and testing of the ISL95813 can now begin.
June 14, 2013
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1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774 | Copyright Intersil Americas LLC 2013. All Rights Reserved
Intersil (and design) is a trademark owned by Intersil Corporation or one of its subsidiaries.
All other trademarks mentioned are the property of their respective owners.
Application Note 1846
Using the On-Board Transient Generator
ISL95813
VOUT
12V
R1
R2
R5
C2
C1
Q1
R6
R4
R3
Q2
HIP2100
VDD
LO
HB
VSS
HO
LI
HS
HI
FIGURE 1. EVALUATION BOARD TRANSIENT GENERATOR
• When HI is switched to GND (turn off transient generator):
- HO go low
- Q1 turns off
- Assuming Q2 is initially on, it will then shut off
- C1 charges to 12V
• When HI is switched to C1:
- HO goes hi
- Q1 turns on and C1 discharges through R2
- Q2 turns on and pulls current from VOUT (Load Step)
- When C1 discharges enough HI switches low and HO goes
low too
- Q1 and Q2 turn off (Load Release)
- C1 charges through R1+R2 until HI switches HI again and
the cycle repeats
• Setting Parameters:
- ON = C1 R2
- OFF = C1 R1 R2
V
OUT
- I LOAD = -------------------
R5 R6
- R3 controls the slope of the Load Step
- R4 controls the slope of the Load Release
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Evaluation Board Schematic
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(Continued)
Evaluation Board Schematic
4
Application Note 1846
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(Continued)
Evaluation Board Schematic
5
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(Continued)
Evaluation Board Schematic
6
Application Note 1846
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(Continued)
Evaluation Board Schematic
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Application Note 1846
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Application Note 1846
Layer Plots
The following figures showcase the layout of the ISL95813 Evaluation Board. Layers 2 and 5 are excluded as
they’re both simply ground planes.
FIGURE 2. EVAL BOARD LAYER 1 (TOP)
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Application Note 1846
Layer Plots
The following figures showcase the layout of the ISL95813 Evaluation Board. Layers 2 and 5 are excluded as
they’re both simply ground planes. (Continued)
FIGURE 3. EVAL BOARD LAYER 3 (INTERNAL)
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Application Note 1846
Layer Plots
The following figures showcase the layout of the ISL95813 Evaluation Board. Layers 2 and 5 are excluded as
they’re both simply ground planes. (Continued)
FIGURE 4. EVAL BOARD LAYER 4 (INTERNAL)
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Application Note 1846
Layer Plots
The following figures showcase the layout of the ISL95813 Evaluation Board. Layers 2 and 5 are excluded as
they’re both simply ground planes. (Continued)
FIGURE 5. EVAL BOARD LAYER 6 (BOTTOM)
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Application Note 1846
Layer Plots
The following figures showcase the layout of the ISL95813 Evaluation Board. Layers 2 and 5 are excluded as
they’re both simply ground planes. (Continued)
FIGURE 6. TOP LAYER SILKSCREEN
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Application Note 1846
Layer Plots
The following figures showcase the layout of the ISL95813 Evaluation Board. Layers 2 and 5 are excluded as
they’re both simply ground planes. (Continued)
FIGURE 7. BOTTOM LAYER SILKSCREEN
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Application Note 1846
Evaluation Board Bill of Materials
DESIGNATOR
Items highlighted in red are not populated.
DESCRIPTION
PN
MFR
QTY
BOTTOM
C1, C7, C18, C73 0.1µF, 0603, 16V Ceramic
any
any
4
C74, C77, C78, 0.1µF, 0402, 16V Ceramic
C133, C135, C136,
C142, C143,
C146-C148
any
any
25
82pF, 0603, 16V, Ceramic
any
any
1
1000pF, 0603, 16V, Ceramic
any
any
3
C2
2200pF, 0603, 16V, Ceramic
any
any
1
C3
6800pF, 0603, 16v, Ceramic
any
any
1
C49
0.01µF, 0603, 16V Ceramic
any
any
2
C101
C15
0.056µF, 0603, 16V Ceramic
any
any
2
C58
C20, C134
1µF, 0603, 16V, Ceramic
any
any
2
C48, C79
1µF, 0805, 16V, Ceramic
any
any
8
C8
0.22µF, 0603, 16V Ceramic
any
any
1
C80
10µF, 1206, 16V Ceramic
any
any
1
C10, C11
22µF, 1206, 25V, Ceramic
any
any
4
C12, C13
C19, C21-C27,
C30-C33
22µF, 0805, 6.3V, Ceramic
any
any
14
C39, C40
100µF, 25V, Tant
T491X107K025ZT
Kemet
1
C9
D1
LED, SMD, 3x2.5mm, 4P, RED/GREEN, 12/20MCD, 2V
SSL-LXA3025IGC-TR
Lumex
1
S4
DIODE-SWITCHING, SMD, SOT23, 70V, 0.2A, ROHS
BAV99LT1G-T
ON Semi
1
L1
0.15µH, 0.9mΩ, 7x7mm
MPCH0740LR15
Tokin
1
N-Channel MOSFET, SOT23-3, 2N7002
2N7002-TP
Micro
Commerical Co
2
N-Channel MOSFET, TO-252
SUD50N03-07
Vishay
1
R9, R10, R11,
R12, R16, R20,
R27
0Ω, 0603
any
any
13
R32
0Ω, 0805
any
any
1
R107
RES 0.50Ω 1W 1% 2512 SMD
WSL2512R5000FEA
Vishay
1
R106
RES 0.07Ω 1W 1% 2512 SMD
WSL2512R0700FEA
Vishay
1
R40, R41
10Ω, 0603, 1%
any
any
2
R104, R105
11Ω, 0603, 1%
any
any
2
22.6Ω, 0603, 1%
any
any
1
R137
49.9Ω, 0603, 1%
any
any
1
R113
R4, R21
54.9Ω, 0603, 1%
any
any
2
R6, R22
75Ω, 0603, 1%
any
any
2
100Ω, 0603, 1%
any
any
2
130Ω, 0603, 1%
any
any
2
C6
Q1, Q2
Q15
R7, R24
14
C126, C128, C137,
C138, C140, C141,
C144, C145, C149,
C150, C151, C154,
C155
C200-C202
C102, C103, C105,
C107, C108, C109
R33, R37, R138,
R145, R148, R149
R143, R144
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Application Note 1846
Evaluation Board Bill of Materials
DESIGNATOR
Items highlighted in red are not populated. (Continued)
DESCRIPTION
PN
MFR
QTY
BOTTOM
R13, R15, R17,
R103
499Ω, 0603, 1%
any
any
4
R29
549Ω, 0603, 1%
any
any
1
1kΩ, 0603, 1%
any
any
5
R121, R203, R206
1.1kΩ, 0603, 1%
any
any
1
R120
R23
1.82kΩ, 0603, 1%
any
any
2
R205
R35
2.61kΩ, 0603, 1%
any
any
1
R5
3.83kΩ, 0603, 1%
any
any
1
R34
3.65kΩ, 0603, 1%
ERJ-3EKF3651V
Panasonic
1
5.62kΩ, 0603, 1%
any
any
1
5.90kΩ, 0603, 1%
any
any
1
any
any
10
R135, R136
R8
R19, R42, R140, 10kΩ, 0603, 1%
R141, R185
R30
11kΩ, 0603, 1%
any
any
1
R2
24.3kΩ, 0603, 1%
any
any
1
R102
49.9kΩ, 0603, 1%
any
any
1
R3
113kΩ, 0603, 1%
any
any
1
R26
154kΩ, 0603, 1%
any
any
1
R25
205kΩ, 0603, 1%
any
any
1
R36
THERMISTOR, SMD, 0603, 10K, 1/10W, 5%
ERT-J1VR103J
Panasonic
1
R1
THERMISTOR-NTC, SMD, 0603, 470K, 1/10W, 5%
NCP18WM474J03RB
MURATA
1
R43
Precision 4 Terminal Current Sense Resistor
RL1632L4
SWITCH-TOGGLE, SMD, 6PIN, SPDT, 2POS, ON-ON, ROHS
GT11MSCBE
C&K
2
Banana Jack - Red
111-0702-001
Emerson
1
HDWARE, MTG, CABLE TERMINAL, 6-14AWG, LUG&SCREW, KPA8CTP
ROHS
Berg
2
Banana Jack - Black
Emerson
1
S1, S2
J9
J11, J13
J12
111-0703-001
R202
R114, R115, R200,
R201, R204
1
J_USB
CONN-USB MINI-B RECEPTACLE, TH, 5CIRCUIT, R/A, ROHS 54819-0519
Molex
1
HDR2
CONN-HEADER, TH, 2X5, 2.54mm, TIN, VERTICAL, ROHS
901310125
Molex
1
JTAG1
CONN-HEADER, SHROUDED, SMD, 14P, 2mmPITCH,
CENTER SLOT, ROHS
87832-1420
Molex
1
P1-P4
Turret Binding Posts
1514-2
Keystone
4
Conn-Gen, Compact Test Point, Vertical, White
TP1-TP5,
TP9-TP12, TP16,
TP17, TP23-TP30
5007
Keystone
20
TP6, J1, J17, J19 Berg, 3 Pin Jumper, 100 mil spacing
any
any
4
CONN-SCOPE PROBE TEST PT, COMPACT, PCB MNT, ROHS 131-4353-00
Tektronix
8
U1
Single Phase Buck Regulator Controller
ISL95813
Intersil
1
U2
CONN-DEV.SOCKET, SMD, 47x39.5, 947P, RPGA, ROHS
PZ94726-3641-41H
Foxconn
1
MOSFET N-CH 30V 17A TDSON-8
BSC052N03LS
Infineon
1
U3
MOSFET N-CH 30V 100A 8TDSON
BSC011N03LS
Infineon
1
U7
TP13-TP15,
TP18-TP22
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June 14, 2013
Application Note 1846
Evaluation Board Bill of Materials
DESIGNATOR
Items highlighted in red are not populated. (Continued)
DESCRIPTION
PN
MFR
QTY
BOTTOM
IC-PREC.VOLTAGE REF., SMD, SOT-23, 1.24-10V, 12mA,
ROHS
LM4041DIM3-ADJ/NOPB-T National Semi
1
U4
IC-ADJ.V, 1A LDO REGULATOR, 10P, DFN, 3X3, ROHS
ISL80101IRAJZ
Intersil
3
U6, U8, U9
HIP2100 High Freq Half Bridge Driver
HIP2100
Intersil
1
OSC-CLOCK , CRYSTAL, SMD, 5X7, 3.3V, 100MHz, 25ppm, CWX813-100.0M
ROHS
ConnorWinfield
1
IC-FLASH, 64K, MICROCONTROLLER, 48P, TQFP, 48MHz,
ROHS
C8051F340-GQ
Silicon
Laboratories
1
IC-PLATFORM FLASH PROM, 1Mb, 20P, TSSOP, ROHS
XCF01SVOG20C
Xilinx
1
U13
IC-STD.FPGA SPARTON-3, SMD, 100P, VTQFP, ROHS
XC3S50-4VQG100C
Xilinx
1
R107
0.1Ω, 2512, 1%
any
any
1
R18, R28, R31 Res, 0603
R38, R39, R146,
R147, R150
any
any
8
R172, R175, R176, Res, 0402
R177, R178
any
any
5
any
any
7
Power Stage, 25V, QFN
FDPC8011S
Fairchild
1
22µF, 0805, 6.3V, Ceramic
any
any
220µF, 2.5V POSCAP
any
Sanyo
U5
U11
C4, C5, C14, C16, Ceramic, 0603
C17
Q3
C51
U14
FLXP34P5X
U10
U12
R142
12
C36-C47
1
C51
1
U14
Intersil Corporation reserves the right to make changes in circuit design, software and/or specifications at any time without notice. Accordingly, the reader is
cautioned to verify that the Application Note or Technical Brief is current before proceeding.
For information regarding Intersil Corporation and its products, see www.intersil.com
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