USER’S MANUAL
ZL6105-1CH-DEMO1Z
Demonstration Board User Guide
UG014
Rev 0.00
December 18, 2014
Introduction
The ZL6105 is an innovative power conversion and
management IC that combines integrated MOSFET drivers
with key power and fault management functions in a small
package, resulting in a flexible and integrated solution. The
ZL6105-1CH-DEMO1Z platform allows quick evaluation of the
highly configurable ZL6105’s performance and features in
either stand-alone mode or via the SMBus™ interface using
Intersil’s PowerNavigator™ GUI software.
Key Features
• Optimized for small circuit footprint
• Onboard enable switch
• Power-good indicator
• SMBus control interface
• Interconnectivity with other Intersil demo boards
References
•
ZL6105,
Datasheet
•
AN2010,
“Thermal and Layout Guidelines for Digital-DC
TM
Products”
•
AN2035,
“Compensation Using CompZL
TM
”
•
AN1779,
“Configuring Current Sharing on the ZL6105 and
ZL8101”
•
TB389,
“PCB Land Pattern and Surface Mount Guidelines for
QFN Packages”
Specifications
This board has been configured and optimized for the following
range of operating conditions:
• V
IN
= 5.5V to 14V
• V
OUT
= 0.6V to 3.6V
• I
MAX
= 40A
• f
SW
= 300kHz to 1333kHz
• Peak efficiency: >90% at 50% load
• Output ripple: <1% at 50% load
Ordering Information
PART NUMBER
ZL6105-1CH-DEMO1Z
DESCRIPTION
ZL6105 Evaluation Kit, one
channel (EVB, USB adapter,
Cable, Software
V
IN
EN
SYNC
ZL6105
ENABLE
SW1
DDC
SMBus
V
OUT
ENABLE
SYNC
SMBus
DDC
FIGURE 1. ZL6105-1CH-DEMO1Z SIMPLIFIED SCHEMATIC
ENABLE
SYNC
SMBus
DDC
UG014 Rev 0.00
December 18, 2014
Page 1 of 15
ZL6105-1CH-DEMO1Z
Functional Description
The ZL6105-1CH-DEMO1Z provides all of the circuitry required to
demonstrate features of the ZL6105. The ZL6105-1CH-DEMO1Z
has a functionally optimized layout that allows efficient
operation up to the maximum output current. Power and load
connections are provided through plug-in sockets. Standalone
operation is achieved using a combination of pin-strap settings
and stored settings. The pin-strap setting details are described in
the ZL6105 datasheet. The stored settings are listed on
“Default
Configuration Settings” on page 14.
The ZL6105-1CH-DEMO1Z Demonstration Board schematics are
shown in
Figures 4
and
5.
The hardware enable function is
controlled by a toggle switch. The Power-Good (PG) LED indicates
that V
OUT
is regulating. The right angle headers at opposite ends
of the board are for connecting a USB to SMBus control board or
for daisy chaining of multiple Intersil evaluation boards.
Connecting multiple Intersil Digital boards allows the user to setup
many shared features such as clock synchronization, controlled
sequencing, phase spreading and fault spreading within Intersil’s
PowerNavigator™ software as part of a single power project. This
document provides operational instructions, schematics, bill of
materials and PCB layers with layout notes for reference.
Figures 14
through
19
show performance data taken using this
hardware in its optimized configuration. The configuration settings
that the hardware ships with are shown on
page 14.
Quick Start Guide
Stand Alone Operation
1. Ensure that the board is properly connected to the supply and
loads before applying any power.
2. Set Enable switch to “DISABLE”.
3. Apply Load to V
OUT+
/V
OUT-.
4. Connect the USB adapter cable to the host computer.
5. Connect the USB to SMBus adapter to J2 (Required to provide
external power for enable switch).
6. Connect the input power supply to V
IN+
/V
IN-
.
7. Turn input supply on.
8. Set Enable switch to “ENABLE”.
9. Test ZL6105 operation.
USB (PMBus) Operation
1. Follow steps 1 through 7 of Stand Alone Operation.
2. Download PowerNavigator software from the Intersil website
and install.
3. Use the GUI to operate at V
OUT
up to 3.6V.
4. Set the Enable switch to “ENABLE”.
5. Monitor and configure the ZL6105 using the PowerNavigator
software.
Operating Range
By default, the ZL6105-1CH-DEMO1Z is configured to provide 1V
at up to 40A at 400kHz f
SW
. The board can also support a wider
operating range and modifying the operating conditions will
change the performance results.
The board V
IN
range is 4.5V to 14V. The board V
OUT
setting is
fixed at 1V by PMBus setting, but the range is programmable
from 0.54V to 3.6V (including margin high/low) using the
VOUT_COMMAND PMBus command. The maximum value of 3.6V
is limited by pin strap. The board I
OUT
range is 0 to 40A. For
continuous operation at 40A, airflow across the board may be
needed.
The switching frequency (f
SW
) is set to 400kHz by PMBus
command, but the f
SW
setting can be changed by using the
FREQUENCY_SWITCH PMBus command (while the device is
disabled). The f
SW
range is 300kHz to 1.33MHz.
UG014 Rev 0.00
December 18, 2014
Page 3 of 15
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