an1465

Description
Features
The ZL2006 is an integrated mixed-signal power
conversion and management IC that combines
an efficient step-down DC-DC converter with
key power and thermal management functions in
a single package. The ZL2006 incorporates
current sharing and adaptive efficiencyoptimization algorithms to provide a flexible,
efficient power IC building block.
The ZL2006EV1 platform is a 4-layer board
demonstrating a 15A synchronous buck
converter. Sequencing, tracking, margining, plus
other features can be evaluated using this board.
A USB to SMBus adapter board can be used to
connect the eval board to a PC. The PMBus
command set is accessed by using the Zilker
Labs PowerNavigator™ evaluation software
from a PC running Microsoft Windows.
•
•
•
•
•
15A synchronous buck converter
Optimized for small circuit footprint and
dynamic response
Configurable through SMBus
Onboard enable switch
Power good indicator
Target Specifications
•
•
•
•
•
•
VIN = 12 V
VOUT = 1.2 V / 15 A (20 A max)
fsw = 615 kHz
Efficiency: 86% at 10 A
Output ripple: ±1%
Dynamic response: ±2.5%
(50%-100%-50% load step, di/dt = 2.5 A/µs)
•
Board temperature: 25°C
Figure 1. ZL2006EV1 Block Diagram
ZL2006EV1
Functional Description
The ZL2006EV1 provides all circuitry required
to demonstrate the features of the ZL2006. The
ZL2006EV1 has a functionally-optimized
ZL2006 circuit layout that allows efficient
operation up to the maximum output current.
Power and load connections are provided
through plug-in sockets.
A majority of the features of the ZL2006 such as
soft-start delay and ramp times, supply
sequencing, voltage tracking, and voltage
margining are available on this evaluation board.
For voltage tracking and sequencing evaluation,
the board can be connected to any other Zilker
Labs evaluation board that supports the Digital
DC (DDC) bus.
Figure 1 shows a functional block diagram of
the ZL2006EV1 board. The SMBus address is
selectable through a jumper on the top side of
the board. All power to the board (VIN and I2C
bus) must be removed before changing the
jumpers.
The hardware enable function is controlled by a
toggle switch on the ZL2006EV1 board. The
power good (PG) LEDs indicate the correct state
of PG when external power is applied to the
ZL2006EV1 board. The right angle headers at
opposite ends of the board are for connecting a
USB to SMBus adapter board or for daisy
chaining of multiple evaluation boards.
Figure 2 shows the operational circuit. The
circuit consists of the ZL2006 IC with its
minimal component count to realize a 15 A buck
converter. The board layout has been optimized
for thermal performance.
Operation
PMBus Operation
The ZL2006 utilizes the PMBus protocol. The
PMBus functionality can be controlled via USB
from a PC running the PowerNavigator
evaluation software in a Windows XP or
Windows 2000/NT operating system.
Install the evaluation software using the CD
included in the ZL2006EV1 kit.
For board operation, connect the included USBto-SMBus adapter board to J10 of the
ZL2006EV1 board. Connect the desired load
and an appropriate power supply to the input and
connect the included USB cable to the PC
running
the
PowerNavigator
evaluation
software. Place the ENABLE switch in
“DISABLE” and turn on the power.
The evaluation software allows modification of
all ZL2006 PMBus parameters. The ZL2006
device on the board has been pre-configured as
described in this document, but the user may
modify the operating parameters through the
eval software or by loading a predefined
scenario from a configuration file.
Use
the
mouse-over
pop-ups
for
PowerNavigator help. Refer to Zilker Labs
application note AN33 [2] for PMBus details.
The ENABLE switch can then be moved to
“ENABLE” and the ZL2006EV1 board can be
tested. Alternately, the PMBus ON-OFF
CONFIG and OPERATION commands may be
used.
Figure 3 is the board interface circuitry. Figure 4
through Figure 8 show the PCB layout for the
board including the board fabrication notes.
The bill of materials (BOM) and configuration
file are also included for reference.
2
ZL2006EV1DSR2.0
ZL2006EV1
Quick Start Guide
Stand Alone Operation
USB (PMBus) Operation
1. Set ENABLE switch to “DISABLE”
1. Set ENABLE switch to “DISABLE”
2. Apply load to VOUT+/VOUT-
2. Apply load to VOUT+/VOUT-
3. Connect the USB to SMBus adapter board
to J10 of ZL2006EV1
3. Connect power supply
(supply turned off)
4. Connect supplied USB cable from computer
to USB to SMBus adapter board
4. Turn power supply on
5. Connect power supply
(supply turned off)
to
VIN+/VIN-
6. Turn power supply on
7. Set ENABLE switch to “ENABLE”
8. Monitor ZL2006EV1 board operation using
an oscilloscope
to
VIN+/VIN-
5. Insert the Zilker Labs Eval Kit CD
6. Connect USB to SMBus adapter board to
J10 of ZL2006EV1
7. Connect supplied USB cable from computer
to USB to SMBus adapter board
a. Upon first-time connection, the Found
New Hardware Wizard will appear.
b. Windows XP users: Select ‘No’ at
prompt to search the Internet for
drivers.
c. Follow the steps on the screen to install
the drivers from the CD.
8. Install the PowerNavigator evaluation
software by running setup.exe from the
PowerNavigator_installer folder on the CD.
9. Set ENABLE switch on EVB to “ENABLE”
10. Monitor and configure the ZL2006EV1
board using PMBus commands in the
evaluation software
11. Test the ZL2006EV1 operation using an
oscilloscope and the evaluation software.
ZL2006EV1DSR2.0
3
ZL2006EV1
Board Schematics
Figure 2. ZL2006EV1 Operational Circuit
4
ZL2006EV1DSR2.0
ZL2006EV1
Figure 3. ZL2006EV1 Interface Circuitry
ZL2006EV1DSR2.0
5
ZL2006EV1
Board Layout – 4 Layers
Figure 4. PCB – Top Layer
6
ZL2006EV1DSR2.0
ZL2006EV1
Figure 5. PCB – Inner Layer 1 (Viewed from Top)
ZL2006EV1DSR2.0
7
ZL2006EV1
Figure 6. PCB – Inner Layer 2 (Viewed from Top)
8
ZL2006EV1DSR2.0
ZL2006EV1
Figure 7. PCB – Bottom Layer (Viewed from Top)
ZL2006EV1DSR2.0
9
ZL2006EV1
Figure 8. Board Fabrication Notes
10
ZL2006EV1DSR2.0
ZL2006EV1
Bill of Materials
ITEM QTY
REFDES
1
1 C1
2
3 C2,C3,C4
C8,C9,C15,
4
5 C16,C44
5
3 C10,C26,C27
6
3 C11,C17,C42
7
2 C12,C13
8
2 C29,C46
9
1 C30
10
3 C32,C38,C40
11
3 C39,C41,C43
15
1 C50
16
1 D1
17
1 D2
18
3 D3,D4,D5
19
1 D6
20
1 D7
21
1 JP1
23
1 J2
24
1 J3
25
1 J4
26
1 J5
28
3 L1,R18,R19
29
1 L2
30
2 P1,P2
31
1 Q1
32
1 Q2
33
1 Q3
34
2 Q4,Q6
35
1 Q5
36
1 R1
37
1 R4
38
1 R5
39
1 R6
40
1 R7
41
1 R10
42
1 R11
43
1 R12
44
1 R13
45
1 R14
46
1 R15
47
1 R16
48
1 R17
R20,R21,R23,
49
7 R26,R28,R29
R32
50
1 R24
51
2 R25,R30
52
2 R27,R31
58
1 SW1
73
1 U1
74
1 U2
75
1 U3
78
2 XX6,XX9
XX7,XX10,XX12,
79
4 XX14
XX8,XX11,XX13,
80
4 XX15
XX16,XX17,XX18
81
4 ,
82
1 XX20
3
12
13
14
22
27
53
54
55
2
1
2
1
1
1
1
2
1
56
57
76
6
1
1
77
5
NOT INSTALLED:
C5,C6
C45
C47,C49
C48
JP2
J6
R33
R34,R35
R40
R41,R43,R44,
R45,R46,R47
R42
U4
XX1,XX2,XX3,
XX4,XX5
ZL2006EV1DSR2.0
VALUE
TOL
10%
10%
RATING
16V
25V
TYPE
X5R
X5R
100u
10u
1u
680u
100n
330u
10u
0.1u
100p
MBR0540
STPS20L45CG
BAT54
ESDA6V1-4BC6
GRN
4 PIN
HEADER 5x2 PIN
JACK_BARREL
HEADER (5X2 RA)
SOCKET (5X2 RA)
1000Z
360n
JACK_BANANA
2N3904
FDMS8692
FDMS8670AS
FDG6301N
FDG6304P
100k
0
0
499
1.82k
11.0k
19.6k
21.5k
23.7k
26.1k
28.7k
16.2k
34.8k
20%
20%
10%
20%
10%
20%
10%
10%
5%
6.3V
6.3V
25V
6.3V
25V
16V
25V
10V
100V
40V
45V-20A
30V
6.1V,80W
2V
X5R
X5R
X5R
AL POLY
X7R
AL POLY
X7R
X7R
NP0
SCHOTTKY
SCHOTTKY
SCHOTTKY
1%
5%
5%
1%
1%
1%
1%
1%
1%
1%
1%
1%
1%
50mA
35A
15A
40V
30V
30V
25V
25V
63mW
63mW
100mW
100mW
100mW
63mW
63mW
63mW
63mW
63mW
63mW
63mW
63mW
10.0k
1%
63mW
4.75k
49.9
392
SW_SPDT
ZL2006
MIC2920A-3.3BS
SN74AUP1G17
SHUNT_HDR
1%
1%
1%
63mW
100mW
100mW
2.2u
10u
[email protected]
20%
PCB FOOTPRINT
MFR
SM0805
MURATA
SM1206
PANASONIC-ECG
MFR PN
GRM21BR61C225KA88L
ECJ-3YB1E106K
SM1210
SM0603
SM0603
SM10P5X10P5
SM0603
10.3X10.3_PXA
SM1206
SM0603
SM0603
SOD123
D-2PAK
SOD523
SOT23_6L
SM0805
SIP4/100
100X100
RA.079PIN
100X100
100X100
SM0603
IHLP_4040DZ_05
.175PLUG/TSTPTS
SOT-23
SO8FL_ALLP
SO8FL_ALLP
SC70_6
SC70_6
SM0402
SM0402
SM0603
SM0603
SM0603
SM0402
SM0402
SM0402
SM0402
SM0402
SM0402
SM0402
SM0402
TAIYO YUDEN
PANASONIC-ECG
TAIYO YUDEN
UNITED CHEMI-CON
PANASONIC ECG
UNITED CHEMI-CON
PANASONIC-ECG
KEMET
PANASONIC ECG
ON SEMI
ST MICRO
ON SEMI
ST MICRO
CHICAGO MINIATURE
TYCO/AMP
SAMTEC
KOBICONN
SAMTEC
SAMTEC
MURATA
VISHAY
EMERSON
ON SEMI
FAIRCHILD
FAIRCHILD
FAIRCHILD
FAIRCHILD
VISHAY
ROHM
YAGEO
PANASONIC-ECG
PANASONIC-ECG
VISHAY
VISHAY
VISHAY
VISHAY
VISHAY
VISHAY
PANASONIC-ECG
PANASONIC-ECG
JMK325BJ107MY-T
ECJ-1VB0J106M
TMK107BJ105KA-T
APXA6R3ARA681MJC0G
ECJ-1VB1E104K
APXA160ARA331MJC0G
ECJ-13YB1E106K
C0603C104K8RACTU
ECJ1VC2A101J
MBR0540T1
STPS20L45CG
BAT54XV2T1OS
ESDA6V1-4BC6
CMD17-21VGC
3-644456-4
TSW-105-07-T-D
163-5004-E
TSW-105-08-T-D-RA
SSQ-105-02-T-D-RA
BLM18HD102SN1D
IHLP4040DZERR36M61
108-0740-001
MMBT3904LT3G
FDMS8692
FDMS8670AS
FDG6301N
FDG6304P
CRCW0402100KFKED
MCR01MZPJ000
RC0603JR-070RL
ERJ-3EKF4990V
ERJ-3EKF1821V
CRCW040211K0FKED
CRCW040219K6FKED
CRCW040221K5FKED
CRCW040223K7FKED
CRCW040226K1FKED
CRCW040228K7FKED
ERJ-2RKF1622X
ERJ-2RKF3482X
THK FILM SM0402
YAGEO
RC0402FR-0710KL
THK FILM
THK FILM
THK FILM
PCB VERT
PANASONIC-ECG
ROHM
PANASONIC-ECG
NKK
ZILKER LABS, INC.
MICREL
TI
TYCO
ERJ-2RKF4751X
MCR03EZPFX49R9
ERJ-3EKF3920V
G13AP-RO
ZL2006ALNFT
MIC2920A-3.3WS
SN74AUP1G17DCKR
881545-2
VERT
VERT
RA
RA
RA
FERRITE
POWDER
NPN
N-CH
N-CH
DUAL N-CH
DUAL P-CH
THK FILM
THK FILM
THK FILM
THK FILM
THK FILM
THK FILM
THK FILM
THK FILM
THK FILM
THK FILM
THK FILM
THK FILM
THK FILM
TTL
STANDOFF
SM0402
SM0603
SM0603
ULTRAMIN
MLF36_6X6BX
SOT223
SC70_5
SHUNT_HDR
4-40
SCREW
PHL
4-40
BUILDING FASTENERSPMS 440 0025 PH
CAP_MOLDED
PCB
FR-4
0.25ID
2.75HX2.188L
CAPLUGS
ZILKER LABS INC
VC-234-8
MPWB-ZL2006-004
SM1206
SM10P5X10P5
SM0603
SM0603
18AWGX.150LS
VERT
SIP2/100
THK FILM SM0603
THK FILM SM0402
THK FILM SM0603
PANASONIC-ECG
UNITED CHEMI-CON
KEMET
TAIYO YUDEN
ECJ-3YB1E106K
APXA6R3ARA681MJC0G
C0603C104K8RACTU
TMK107BJ105KA-T
SAMTEC
ROHM
YAGEO
PANASONIC-ECG
TSW-102-07-L-S
MCR03EZPFX49R9
RC0402FR-0710KL
THK FILM SM0603
THK FILM SM0603
TTL
SC70_5
PANASONIC-ECG
PANASONIC-ECG
TI
10u
680u
0.1u
1u
JUMPER
2 POS
49.9
10.0k
NI
10%
20%
10%
10%
25V
6.3V
10V
25V
1%
1%
1%
100mW
63mW
100mW
NI
NI
SN74AUP1G17
1%
1%
100mW
100mW
TIEPT/10WIDE
X5R
AL POLY
X7R
X5R
SN74AUP1G17DCKR
TIEPT/10WIDE
11
ZL2006EV1
Default Configuration Text
The following text is loaded into the ZL2006 device on the EV1 as default settings. Each PMBus
command is loaded via the PowerNavigator software. The # symbol is used for a comment line.
#NOTE: This file is intended for the Rev. 2 ZL2006-EV1
#with L=360nH, Co=5x(100uF/2.0mohm)+(2x680uF/10mohm)
#Erase user store & default store
RESTORE_FACTORY
STORE_USER_ALL
STORE_DEFAULT_ALL
#Prepare device for all commands to be added to the DEFAULT store
RESTORE_DEFAULT_ALL
#Manufacturer information fields in ASCII:
MFR_ID
Zilker Labs
MFR_MODEL
ZL2006EV1
MFR_LOCATION
Austin
MFR_REVISION
Rev 4.2
#Output Voltage commands
VOUT_COMMAND
OVUV_CONFIG
1.200000
0x01
#V
#2 counts
#Output current
IOUT_CAL_GAIN
IOUT_CAL_OFFSET
IOUT_OC_FAULT_LIMIT
IOUT_AVG_OC_FAULT_LIMIT
IOUT_UC_FAULT_LIMIT
IOUT_AVG_UC_FAULT_LIMIT
0.920000
1.4
30.000000
24.000000
-15.000000
-10.000000
#mohms
#A
#A
#A
#A
#A
#Input Voltage
VIN_OV_FAULT_LIMIT
VIN_OV_WARN_LIMIT
VIN_UV_WARN_LIMIT
VIN_UV_FAULT_LIMIT
13.4
13.0
4.7
4.5
#V
#V
#V
#V
#Other Faults
OT_FAULT_LIMIT
OT_WARN_LIMIT
UT_WARN_LIMIT
UT_FAULT_LIMIT
120.000000
110.000000
-20.000000
-30.000000
#deg
#deg
#deg
#deg
C
C
C
C
#General converter commands
TON_DELAY
5.000000
#ms
TON_RISE
5.000000
#ms
TOFF_DELAY
5.000000
#ms
TOFF_FALL
5.000000
#ms
FREQUENCY_SWITCH
615.000000
#kHz
PID_TAPS
A=15141.91, B=-29677.9, C=14599.08
MAX_DUTY
90.000000
#%
DEADTIME
0x3838
#56ns max
DEADTIME_CONFIG
0x0404
#8ns min, dynamic
INDUCTOR
0.36
#uH
12
ZL2006EV1DSR2.0
ZL2006EV1
#Advanced commands
MFR_CONFIG
USER_CONFIG
NLR_CONFIG
MISC_CONFIG
INTERLEAVE
SEQUENCE
TEMPCO_CONFIG
0x6A10
#416ns; 5 count; XTEMP dis; fault on internal
0x0000
0xCA010200 #On;1%load;1.5%unload;1toLoad;2toUnload;NoOuter;NoBlank
0x0480
#Precise dis; Adaptive dis;
0x0000
0x0000
0x28
#4000PPM/°C internal
STORE_DEFAULT_ALL
RESTORE_DEFAULT_ALL
ZL2006EV1DSR2.0
13
ZL2006EV1
Measured Data
The following data was acquired using a ZL2006EV1 rev 2 evaluation board.
Efficiency
Adaptive diode emulation and adaptive frequency modes are disabled for these efficiency measurements.
90
88
Efficiency (%)
86
84
82
80
78
76
74
0
2
4
6
8
10
12
14
16
Output Current (A)
Figure 9. Efficiency, Vin=12V, Vout=1.2V
14
ZL2006EV1DSR2.0
ZL2006EV1
Ramp-up / Ramp-down Characteristics
1.4
1.2
Output Voltage (V)
1
0.8
0.6
0.4
0.2
0
-0.2
0
0.01
0.02
0.03
0.04
0.05
0.06
0.07
0.08
0.06
0.07
0.08
0.09
0.1
Time (s)
Figure 10. Ramp Up
1.4
1.2
Output Voltage (V)
1
0.8
0.6
0.4
0.2
0
-0.2
0
0.01
0.02
0.03
0.04
0.05
0.09
0.1
Time (s)
Figure 11. Ramp Down
ZL2006EV1DSR2.0
15
ZL2006EV1
Dynamic Load Response
0.005
0
Vout(V)
-0.005
-0.01
-0.015
-0.02
0
0.02
0.04
0.06
0.08
0.1
0.12
0.14
0.16
0.18
0.2
Time(µs)
Figure 12. Dynamic Response, 7A to 15A Load Step
0.03
0.025
0.02
Vout(V)
0.015
0.01
0.005
0
-0.005
-0.01
0
0.02
0.04
0.06
0.08
0.1
0.12
0.14
0.16
0.18
0.2
Time(µs)
Figure 13. Dynamic Response, 15A to 7A Load Step
16
ZL2006EV1DSR2.0
ZL2006EV1
References
[1]
ZL2006 Data Sheet, Zilker Labs, Inc., 2008.
[2]
AN33 – PMBus™ Command Set, Zilker Labs, Inc., 2008.
Ordering Information
Orderable
Part Number
ZL2006EVK1
ZL2006EV1
Description
ZL2006 Evaluation Kit (EVB, USB Adapter, Cable, Software)
ZL2006 Evaluation board only
Revision History
Date
Rev. #
February 2009
2.0
ZL2006EV1DSR2.0
Description
Initial release with board rev 2
17
ZL2006EV1
Intersil Corporation
900 S. Capital of Texas Hwy.
Las Cimas IV, Suite 200
Austin, TX 78746
Tel: 512-382-8300
Fax: 512-382-8329
www.intersil.com
© 2009, Intersil Americas, Inc. All rights reserved. Zilker Labs, Digital-DC, PowerNavigator, and the Zilker
Labs Logo are trademarks of Intersil Americas, Inc. All other products or brand names mentioned herein are
trademarks of their respective holders.
Pricing, specifications and availability are subject to change without notice. Please see www.intersil.com for
updated information. This product is not intended for use in connection with any high-risk activity, including
without limitation, air travel, life critical medical operations, nuclear facilities or equipment, or the like.
The reference designs contained in this document are for reference and example purposes only. THE REFERENCE DESIGNS ARE PROVIDED "AS IS" AND "WITH ALL FAULTS" AND INTERSIL AMERICAS
DISCLAIMS ALL WARRANTIES, WHETHER EXPRESS OR IMPLIED. INTERSIL AMERICAS SHALL
NOT BE LIABLE FOR ANY DAMAGES, WHETHER DIRECT, INDIRECT, CONSEQUENTIAL
(INCLUDING LOSS OF PROFITS), OR OTHERWISE, RESULTING FROM THE REFERENCE DESIGNS
OR ANY USE THEREOF. Any use of such reference designs is at your own risk and you agree to indemnify
Intersil Americas, Inc. for any damages resulting from such use.
18
ZL2006EV1DSR2.0
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