an1417

ISL6263CEVAL1/1Z, ISL6263DEVAL1Z
Evaluation Boards User Guide
®
Application Note
August 18, 2008
AN1417.0
Introduction
Interface Connections
The ISL6263CEVAL1/1Z and ISL6263DEVAL1Z evaluation
boards demonstrate the performance of the ISL6263C and
ISL6263D respectively. The ISL6263C and ISL6263D are
single-phase synchronous buck PWM controllers, which
feature Intersil's Robust Ripple Regulator (R3) technology.
The evaluation board design criteria is located in Table 1. An
on-board dynamic-load generator is included for evaluating
the transient-load response. The dynamic-load applies a
2.5ms pulse of 200mΩ across VOUT and GND every 30ms.
• VIN: Input voltage to the power stage of the converter
- J6: VIN positive power input
- P37: VIN positive voltage sense
- J5: VIN return power input
- P38: VIN return voltage sense
What’s Inside
Contents of this document include:
• VOUT: Regulated output voltage from the converter
- J14: VOUT positive power output
- P5: VOUT positive voltage sense
- J13: VOUT return power output
- P9: VOUT return voltage sense
• 5V: +5V input voltage for VCC, PVCC, PGOOD-LED and
pull-up voltage rail
- J1: 5V positive input
- J2: 5V return input
• Recommended Test Equipment
• Interface Connections
• Switch Descriptions
• 3.3V: +3.3V input voltage for auxiliary circuits
- J3: 3.3V positive input
- J4: 3.3V return input
• Jumper Descriptions
• Test Point Descriptions
• +12V: +12V input voltage for the dynamic-load generator
- J11: 12V positive input
- J12: 12V return input
• Schematic
• Bill of Materials
• Silkscreen Plots
Jumper Descriptions
• Board Layout Plots
TABLE 1. EVALUATION BOARD DESIGN CRITERIA
PARAMETER
VALUE
UNITS
VIN
5 to 25
VDC
ISL6263C 0.41200 to 1.28750
VOUT
ISL6263D 0.7000 to 1.0875
VDC
FULL-LOAD
12
ADC
PWM FREQUENCY
300
kHz
OCP
~15.5
ADC
• (QTY 1) Adjustable 25V, 5A Power Supply
• (QTY 1) Fixed 12V, 100mA Power Supply
• (QTY 1) Fixed 5V, 100mA Power Supply
• (QTY 1) Adjustable 20A Constant Current Electronic Load
• (QTY 1) Four-Channel Oscilloscope
1
• J9 − PGOOD circuit 5V input
- Shunt jumper installed during normal operation (default)
- Shunt jumper can be removed during efficiency tests
• J10 − Selects the logic state of the FDE pin
- Install shunt jumper across pins 1 and 2 for HIGH
- Install shunt jumper across pins 2 and 3 for LOW
(default)
• J16 − VDD input current measurement port
- Shunt jumper installed during normal operation (default)
- Shunt jumper replaced by DMM to measure VDD bias
current
Recommended Equipment
• (QTY 1) DVM
• J7 (SRIP) − Selects the logic state of the AF_EN pin
- Install shunt jumper across pins 1 and 2 for HIGH
- Install shunt jumper across pins 2 and 3 for LOW
(default)
• J17 − VDD and PVCC input current measurement port
- Shunt jumper installed during normal operation (default)
- Shunt jumper replaced by DMM to measure VDD bias
current and PVCC bias current
• J18 − PGOOD and pull-up supply selection
- Install shunt jumper across pins 1 and 2 for 5V (default)
- Install shunt jumper across pins 2 and 3 for 3.3V (3.3V
power supply should be connected to J3 and J4)
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774 | Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright Intersil Americas Inc. 2008. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.
Application Note 1417
− LGATE
P37 − VIN positive voltage sense
P38 − VIN return voltage sense
Switch Descriptions
• P36
• S1
− VIDs and OFFSETs inputs (default <00000>)
•
FUNCTION DESCRIPTION
•
ISL6263C
ISL6263D
• VIDs and OFFSETs Test Points:
S1.1 (VID4)
VID4
VID2
S1.2 (VID3)
VID3
VID1
TEST POINT
(SILKSCREEN)
S1.3 (VID2)
VID2
VID0
S1.4 (VID1)
VID1
OFFSET1
S1.5 (VID0)
VID0
OFFSET0
SWITCH
(SILKSCREEN)
• S4 − VR_ON (enable)
- OFF − Converter is not enabled (default)
- ON − Converter is enabled
• S5 − Transient load generator
- OFF − Transient load is not enabled (default)
- ON − Transient load is enabled
− IMON
P1 (SRIP) − AF_EN
P3 (DROOP) − ICOMP
P4 − COMP
P5 − VOUT positive voltage sense
P6 − PGOOD
P7 − OCSET
P8 − VW
P9 − VOUT return voltage sense
P11 − VSEN
P12 − FB
P13 − VSS
P14 − SOFT
P16 − FDE
P17 − VDIFF after R30 network analyzer port
P20 − VR_ON
P21 − VDIFF
P22 (VCCP) − VO
P26 − VSS
P29 − VIN
P30 (VSUM) − ISP
P32 − VDD
P34 (+5V) − PVCC
P35 − UGATE
• PMON
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
2
ISL6263C
ISL6263D
P25 (VID4)
VID4
VID2
P27 (VID3)
VID3
VID1
P28 (VID2)
VID2
VID0
P31 (VID1)
VID1
OFFSET1
P33 (VID0)
VID0
OFFSET0
− PHASE (for oscilloscope probe)
J22 − VOUT positive voltage sense to VOUT return
• J20
•
voltage sense (for oscilloscope probe)
• J23
Test Point Descriptions
FUNCTION DESCRIPTION
− Transient load (for oscilloscope probe)
Resistor Current Sense Configuration
The evaluation board is pre-configured with inductor DCR
current sense. It also provides the option of resistor current
sense for more precise overcurrent protection and current
monitor. Follow the following procedure to configure the
resistor current sense:
Step 1:
Replace R60 with the current sense shunt resistor
Step 2:
Remove R50 and R53
Step 3:
Place R52 and R54 with 0Ω resistors
Step 4:
Follow the datasheet to configure other resistor
current sense and overcurrent protection
components.
Dynamic Load Generator
The evaluation board provides an on-board dynamic load
generator for evaluating the transient-load response, which
is controlled by switch S4. The dynamic load generator
applies a 2.5ms pulse load across VOUT and GND. The
transient load slew-rate can be trimmed by adjusting the
resistor R74 for the rising edge, and resistor R73 for the
falling edge. A +12V power supply is needed to power the
dynamic load generator.
AN1417.0
August 18, 2008
8
7
6
5
4
3
2
ZONE
1
REVISIONS
LTR
DESCRIPTION
DATE
APPR.
J9
1 2
6.98K
C12
R16
22PF
2.21K
10K
OPEN
P7
P3
C31
10UF
C30
OPEN
1UF
C29
C28
10
R5
0.01UF
R32
10K
10K
R36
10K
R37
10K
C27
1UF
C26
68PF
C15
C83
56UF
C82
56UF
1UF
C32
C5B
10UF
10UF
C4
P36
R20
C6
0
R7
OPEN
OPEN
R15
0.1UF
P22
P30
10UF
C70
10UF
C17
C66
10UF
C65
P5
0.068UF
C60
10UF
10UF
C52
10UF
C54
C46
10UF
C36
10UF
330UF
0.1UF
C89
OPEN
C35
0
C2
OPEN
330UF
R54
0
C10
OPEN
R50
OPEN
R53
J22
P9
R27
R29
OPEN
3.57K
R24
C11
1.65K
1000PF
10K
C19
0.068UF
C
J13
4.53K R26
20
R3
R4
8.06K
C3
R52
R12
560PF
VOUT
20
4.99K
0
R11
200K
R21
180PF
Q4
10K
1000PF
Q2
330PF
C9
R8
R23
J20
C7
R19
C22
C5
OPEN
C13
R60
7.68K
RTN
ICOMP
ISN
VO
ISP
VIN
VSS
VDD
P17
C
ON
ON
ON
ON
ON
BOOT
EP
0
R30
VSEN
L1
0.88UH
PHASE
UGATE
D2
P11
PGND
PHASE
R49
VDIFF
J5
OPEN
P21
D
J14
LGATE
ISL6263CHRZ
(ISL6263DHRZ)
FB
P38
PGND
Q3
IRF7832
COMP
P12
Q1
PVCC
U1
VW
P4
P8
VIN
(OFFSET0) VID0
OCSET
J6
P37
P35
(OFFSET1) VID1
SOFT
J3
1K
IRF7821
FDE
PGOOD
AF_EN
VR_ON
IMON
VID4
VID3
VID2
R17
RBIAS
150K
R35
IRF7821
C8
P14
R22
3.3V
J4
P29
R48
D
OFF
0.018UF
P13
E
C21
C14
C18
0.1UF
1000PF
1000PF
C16
OPEN
B
B
J11
R72
Q15
R73
Q14
J23
BAT54S
249
2N7002
OPEN
499
C81
J12
HUF76129D3S
R9
HI
IN
D1
249
0.2
LI
HS
S5
OFF
A
HO
VOUT
R74
R6
ON
LO
VSS
10UF
1UF
C80
HB
R71
VDD
49.9K
U5
HIP2100
+12V
TITLE:
REV:
ISL6263CHRZ
(ISL6263DHRZ)
ENGINEER: LEI ZHAO
AN1417.0
August 18, 2008
DATE:
08/11/2008
SHEET:
OF 1
1
DRAWN BY:
8
7
6
5
4
3
FIGURE 1. ISL6263CEVAL1/1Z AND ISL6263DEVAL1Z EVALUATION BOARDS SCHEMATIC
2
A
A
1
Application Note 1417
OPEN
ON
S4
OPEN
0
1
2 J18
3
1X3
10
P32
(VID2)
(VID1)
(VID0)
10K
R10
10K
C20
1
2
3
1X3
P26
200K
P34
10K
R46
1
R18
PMON
R43
R14
R25
J10
IMON
VR_ON
IRF7832
P20
R38
R40
AF_EN
C1
P1
0.22UF
PGOOD
R39
J7
1
2
3
1X3
S1
(VID2)
VID4
12
P6
J1
J2
J16
2N7002
FDE
(VID1)
0
3
P16
Q5
VID3
5V
(VID0)
VID2
12
P25
(OFFSET0)
J17
P27
VID0
(OFFSET1)
5
4
3
2
1
P28
VID1
SD05H0SK
10K
R13
R2
R1
510
510
RED
P31
D3
GRN
P33
E
100
F
R47
F
Application Note 1417
FIGURE 2. ISL6263CEVAL1/1Z AND ISL6263DEVAL1Z EVALUATION BOARDS PCB TOP SILKSCREEN
4
AN1417.0
August 18, 2008
Application Note 1417
FIGURE 3. ISL6263CEVAL1/1Z and ISL6263DEVAL1Z EVALUATION BOARDS PCB BOTTOM SILKSCREEN
5
AN1417.0
August 18, 2008
Application Note 1417
FIGURE 4. ISL6263CEVAL1/1Z and ISL6263DEVAL1Z EVALUATION BOARDS PCB TOP ETCH
6
AN1417.0
August 18, 2008
Application Note 1417
FIGURE 5. ISL6263CEVAL1/1Z and ISL6263DEVAL1Z EVALUATION BOARDS LAYER 2 ETCH
7
AN1417.0
August 18, 2008
Application Note 1417
FIGURE 6. ISL6263CEVAL1/1Z and ISL6263DEVAL1Z EVALUATION BOARDS PCB LAYER 3 ETCH
8
AN1417.0
August 18, 2008
Application Note 1417
FIGURE 7. ISL6263CEVAL1/1Z AND ISL6263DEVAL1Z EVALUATION BOARDS PCB BOTTOM ETCH
9
AN1417.0
August 18, 2008
Application Note 1417
Bill of Materials
ISL6263CEVAL1/1Z and ISL6263DEVAL1Z evaluation boards use the same PCB and schematic, thus the same bill of materials except for the
controller.
NO.
REFERENCE
QTY
1
C82, C83
2
CAP, RADIAL, 68µF, 100V, 20%, ALUM.ELECTROLYTIC
PANASONIC
EEU-FC2A680L
2
C11, C13, C14, C18
4
CAP, SMD, 0603, 1000pF, 16V, 10%, X7R
GENERIC
NA
3
C28
1
CAP, SMD, 0603, 0.01µF, 16V, 10%, X7R
GENERIC
NA
4
C15, C21, C35
3
CAP, SMD, 0603, 0.1µF, 25V, 10%, X7R
GENERIC
NA
5
C27, C29
2
CAP, SMD, 0603, 1µF, 6.3V, 10%, X5R
GENERIC
NA
6
C5
1
CAP, SMD, 0603, 180pF, 10V, 10%, X7R
GENERIC
NA
7
C1
1
CAP, SMD, 0603, 0.22µF, 25V, 20%, X7R
GENERIC
NA
8
C7
1
CAP, SMD, 0603, 330pF, 10V, 5%, NPO
GENERIC
NA
9
C9
1
CAP, SMD, 0603, 560pF, 10V, 10%, X7R
GENERIC
NA
10
C12
1
CAP, SMD, 0603, 22pF, 10V, 5%, NPO
GENERIC
NA
11
C26
1
CAP, SMD, 0603, 68pF, 50V, 5%, NPO
GENERIC
NA
12
C17, C19
2
CAP, SMD, 0603, 0.068µF, 16V, 10%, X7R
GENERIC
NA
13
C8
1
CAP, SMD, 0603, 0.018µF, 10V, 10%, X7R
GENERIC
NA
14
C32, C80
2
CAP, SMD, 0805, 1.0µF, 25V, 10%, X7R
GENERIC
NA
15
C31, C36, C46, C52, C54,
C60, C65, C66, C70
9
CAP, SMD, 0805, 10µF, 6.3V, 10%, X5R
GENERIC
NA
16
C81
1
CAP, SMD, 1206, 10µF, 16V, 20%, X5R
GENERIC
NA
17
C4, C5B
2
CAP, SMD, 1812, 10µF, 25V, 10%, X5R
GENERIC
NA
18
C2, C89
2
CAP, SMD, 330µF, 2V, 20%, SP-CAP
PANASONIC
EEF-SX0D331XR
19
L1
1
INDUCTOR, SMD, 11.5X10, 0.88µH, 20%, 17.4A
NEC/TOKIN
MPC1040LR88
20
U5
1
IC-HI FREQ BRIDGE DRIVER, SO8, 100V
INTERSIL
HIP2100IB
21
U1
1
PWM CONTROLLER, 32P, QFN, 5X5
INTERSIL
ISL6263CHRZ
or
ISL6263DHRZ
22
R24
1
NTC, SMD, 0603, 10k, 1/10W, 5%, B VALUE = 4201k to 4300k PANASONIC
ERT-J1VR103J
23
Q5, Q14
2
MOSFET, N-CH, SOT23, 60V, 115mA
MOTOROLA
2N7002LT1
24
Q15
1
MOSFET, N-CH, TO-252AA, 30V, 16mΩ
FAIRCHILD
HUF76129D3S
25
Q1
1
MOSFET, N-CH, SO8, 30V, 9.1mΩ
IR
IRF7821
26
Q2, Q4
2
MOSFET, N-CH, SO8, 30V, 4.0mΩ
IR
IRF7832
27
R39
1
RES, SMD, 0603, 1Ω, 1/10W, 1%
GENERIC
NA
28
R5, R46
2
RES, SMD, 0603, 10Ω, 1/10W, 1%
GENERIC
NA
29
R11, R12
2
RES, SMD, 0603, 20Ω, 1/16W, 1%
GENERIC
NA
30
R10, R20, R30, R48, R50,
R53
6
RES, SMD, 0603, 0Ω, 1/16W
GENERIC
NA
31
R47
1
RES, SMD, 0603, 100Ω, 1/10W, 1%
GENERIC
NA
32
R15
1
RES, SMD, 0603, 1.65k, 1/16W, 1%
GENERIC
NA
33
R35
1
RES, SMD, 0603, 1k, 1/10W, 1%
GENERIC
NA
34
R8, R13, R14, R25, R32,
R36, R37, R38, R40, R43
10
RES, SMD, 0603, 10k, 1/10W, 1%,
GENERIC
NA
35
R4
1
RES, SMD, 0603, 8.06k, 1/16W, 1%
GENERIC
NA
10
DESCRIPTION
MFG NAME
MFG PART NUMBER
AN1417.0
August 18, 2008
Application Note 1417
Bill of Materials
ISL6263CEVAL1/1Z and ISL6263DEVAL1Z evaluation boards use the same PCB and schematic, thus the same bill of materials except for the
controller. (Continued)
NO.
REFERENCE
QTY
36
R22
1
RES, SMD, 0603, 150k, 1/16W, 1%
GENERIC
NA
37
R18, R19
2
RES, SMD, 0603, 200k, 1/16W, 1%
GENERIC
NA
38
R16
1
RES, SMD, 0603, 2.21k, 1/16W, 1%
GENERIC
NA
39
R73, R74
2
RES, SMD, 0603, 249Ω, 1/16W, 1%
GENERIC
NA
40
R29
1
RES, SMD, 0603, 3.57k, 1/16W, 1%
GENERIC
NA
41
R27
1
RES, SMD, 0603, 4.53k, 1/16W, 1%
GENERIC
NA
42
R72
1
RES, SMD, 0603, 499Ω, 1/16W, 1%
GENERIC
NA
43
R23
1
RES, SMD, 0603, 4.99k, 1/16W, 1%
GENERIC
NA
44
R71
1
RES, SMD, 0603, 49.9k, 1/16W, 1%
GENERIC
NA
45
R1, R2
2
RES, SMD, 0603, 510Ω, 1/16W, 5%
GENERIC
NA
46
R3
1
RES, SMD, 0603, 6.98k, 1/16W, 1%
GENERIC
NA
47
R21
1
RES, SMD, 0603, 7.68k, 1/16W, 1%
GENERIC
NA
48
R60
1
RES, SMD, 2512, 0Ω, 1W, 5%
GENERIC
NA
49
R6
1
RES, SMD, 2512, 0.2Ω, 1W, 1%
DALE
WSL-2512-R200F
50
S4, S5
2
SWITCH-TOGGLE, SMD, 1P, SPST
C&K
COMPONENTS
GT11MSCKE
51
S1
1
SWITCH-DIP, SMD, DIP, 5P, SLIDE, SPST
C&K
COMPONENTS
SD05H0SK
52
D1
1
SCHOTTKY, SMD, SOT23, 3P, 30V, 200mA, DUAL DIODE
FAIRCHILD
BAT54S
53
D3
2
LED, SMD, 3x2.5mm, 4P, RED/GREEN, 12/20MCD, 2V
LUMEX
SSL-LXA3025IGC-TR
16
OPEN
54 C3, C6, C10, C16, C20, C22,
C30, R7, R9, R17, R26, R49,
R52, R54, D2, Q3
DESCRIPTION
MFG NAME
MFG PART NUMBER
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
11
AN1417.0
August 18, 2008
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