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ZL6105 Datasheet, PDF (1/35 Pages) Intersil Corporation – Digital DC/DC Controller with Drivers and Auto | |||
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Digital DC/DC Controller with Drivers and Auto
Compensation
ZL6105
The ZL6105 is a digital power controller with integrated
MOSFET drivers. Auto compensation eliminates the need for
manual compensation design work. Adaptive performance
optimization algorithms improve power conversion efficiency.
Zilker Labs Digital-DC⢠technology enables a blend of power
conversion performance and power management features.
The ZL6105 is designed to be a flexible building block for DC
power and can be easily adapted to designs ranging from a
single-phase power supply operating from a 3.3V to a
multiphase current sharing supply operating from a 12V input.
The ZL6105 eliminates the need for complicated power supply
managers as well as numerous external discrete components.
The ZL6105 uses the I2C/SMBus⢠with PMBus⢠protocol for
communication with a host controller and the Digital-DC bus
for communication between Zilker Labs devices.
The ZL6105 is pin for pin compatible with the ZL2008. The
POLA VOUT table and compensation table have been removed.
A new single resistor VOUT table and the Auto Compensation
feature have been added.
Related Literature*(see page 34)
⢠See AN2032, âNLR Configuration for DDC Productsâ
⢠See AN2033, âZilker Labs PMBus Command Set - DDC Productsâ
⢠See AN2034, âConfiguring Current Sharing on the ZL2004
and ZL2006â
⢠See AN2035, âCompensation Using CompZLâ¢â
Features
Power Conversion
⢠Efficient Synchronous Buck Controller
⢠Auto Compensating PID Filter
⢠Adaptive Light Load Efficiency Optimization
⢠3V to 14V Input Range
⢠0.54V to 5.5V Output Range (with margin)
⢠±1% Output Voltage Accuracy
⢠Internal 3A MOSFET Drivers
⢠Fast Load Transient Response
⢠Current Sharing and Phase Interleaving
⢠Snapshot⢠Parameter Capture
⢠Pb-Free (RoHs Compliant)
Power Management
⢠Digital Soft-start/stop
⢠Power-Good/Enable
⢠Voltage Tracking, Sequencing and Margining
⢠Voltage, Current and Temperature Monitoring
⢠I2C/SMBus Interface, PMBus Compatible
⢠Output Voltage and Current Protection
⢠Internal Non-volatile Memory (NVM)
Applications
⢠Servers/Storage Equipment
⢠Telecom/Datacom Equipment
⢠Power Supply Modules
EN PG PH_EN FC ILIM CFG UVLO V25 VR VDD
V
SS
VTRK
MGN
SYNC
DDC
SCL
SDA
SALRT
POWER
MANAGEMENT
NON-
VOLATILE
MEMORY
PWM
CONTROLLER
I2 C
MONITOR
ADC
LDO
DRIVER
CURRENT
SENSE
TEMP
SENSOR
BST
GH
SW
GL
VSEN+
VSEN-
ISENA
ISENB
SA
XTEMP
PGND SGND DGND
FIGURE 1. BLOCK DIAGRAM
100
VOUT = 3.3V
95
VOUT = 1.5V
90
85
80
75
70
65
60
VIN = 12V
55 fSW = 400kHz
Circuit of Figure 34
50
02 4 6 8
10 12 14 16 18 20
Load Current (A)
FIGURE 2. EFFICIENCY vs LOAD CURRENT
February 8, 2011
1
FN6906.3
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774 |Copyright Intersil Americas Inc. 2011. 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.
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