|
The ZL2004* is an innovative digital power conversion and management IC that combines an efficient, synchronous DC-DC buck converter, adaptive PWM control, and key power and thermal management functions in a 5 x 5 mm package. The ZL2004 is optimized for use with a wide range of driver/FET ICs and power train modules, enabling the same controller IC to be used across a wide range of applications. The ZL2004 automatically adapts its’ performance characteristics to increase operating efficiency of the system when the load levels drop without sacrificing the peak efficiency at heavy loads. This functionality is achieved with no additional components or user interaction. Current sharing between devices is achieved using a singlepin Digital-DC communication bus, enabling the same device to be used across a wide range of applications. The ZL2004 can be used with other Digital-DC devices to provide a complete power design for complex systems requiring multiple power domains, sequencing and fault management.
|
The ZL2004 enables seamless operation with
multiple driver/FET ICs and power train modules,
enabling a highly flexible power control scheme.
*Also available the ZL2004-01 with a ±0.2% output voltage accuracy
|
|
|
Power Conversion Features
• Synchronous buck controller with
adaptive PWM control scheme
• Compatible with multiple driver/
FET ICs and power train modules
• Simple device configuration using
pin-strap or resistor connections
• Supports active current sharing for up to 8 phases
• Adaptive performance algorithms
• Dynamic dead-time control
• Adaptive diode emulation
• Phase adding/shedding
• Adaptive loop compensation
• Single-supply operation
• ±1% output voltage accuracy ( ±2% version available, ZL2004-01)
• 200 kHz to 1.4 MHz operation
• Supports clock synchronization
and phase interleaving
• Soft-start into pre-biased load
|
Power Management Features
• Integrated power management
• Coincidental/ratiometric tracking
• Power-up/power-down
sequencing
• Voltage margining
• Voltage/current monitoring
• Internal/external temp monitoring
• Extensive fault management
• Individual fault handling for
all circuit parameters
• User-configurable fault
response parameters
• Fault spreading between
multiple devices
• I2C/SMBus serial interface
• Supports PMBus command set
• On-chip non-volatile memory
(NVM) for storing custom
configurations
|