The ZL8801 is a dual phase digital DC/DC controller. Up to four ZL8801s (8 phases) can be operated in parallel to provide additional output current. The ZL8801 supports a wide range of output voltages (0. 54V to 5. 5V) operating from input voltages as low as 4. 5V up to 14V. With its fully digital ChargeMode™ Control loop the ZL8801 can respond to a transient load step within a single switching cycle. This unique compensation-free modulation technique allows designs to meet transient specifications with minimum output capacitance, thus saving cost and board space. Intersil’s proprietary single wire DDC (Digital-DC™) serial bus enables the ZL8801 to communicate between other Intersil digital power ICs. By using the DDC, the ZL8801 achieves complex functions such as inter-IC phase current balancing, sequencing and fault spreading, eliminating complicated power supply managers with numerous external discrete components. The ZL8801 features cycle-by-cycle overcurrent protection and protection for overvoltage, undervoltage, over-temperature and MOSFET driver under and overvoltage protection. A snapshot parametric capture feature allows users to take a snapshot of operating and fault data during normal or fault conditions. Integrated Low Drop-Out (LDO) regulators allow the ZL8801 to be operated from a single input supply eliminating the need for additional linear regulators. A dedicated 5V VDRV LDO output can be used to power external drivers or DrMOS devices. With full PMBus™ compliance, the ZL8801 is capable of measuring and reporting input voltage, input current, output voltage, output current as well as the device's internal temperature, an external temperature and an auxiliary voltage input.
|PDF 3.50 MB||Datasheet|
|PDF 5.51 MB 日本語||Brochure|
|PDF 257 KB||Manual - Development Tools|
|PDF 4.68 MB||Guide|
|PDF 124 KB||Product Change Notice|
|PDF 714 KB||Guide|
|PDF 194 KB||Other|
|PDF 693 KB||Manual - Hardware|
|PDF 509 KB||Application Note|
|PDF 397 KB||Application Note|
Renesas' PowerNavigator™ software allows simple configuration and monitoring of multiple Digital-DC devices using a PC with a USB interface.
|Monitor Debugger/RAM Monitor||Renesas|
|ZIP 120.25 MB||Software & Tools - Other|
|ZIP 96.49 MB||Software & Tools - Software|
|ZIP 54.93 MB||Library|
|ZIP 119.19 MB||Library|
|ZIP 59.25 MB||Library|
|ZIP 435 KB||Library|
|ZIP 1.75 MB||Library|
|ZIP 166 KB||Library|
Schematic symbols, PCB footprints, and 3D CAD models from SamacSys can be found by clicking on products in the Product Options table. If a symbol or model isn't available, it can be requested directly from the website.
Identifying the differences between the ZL8800 and ZL8801 dual phase PMBus™ ChargeMode™ control dc/dc digital controllers.
The ZL8800 and ZL8801 both offer ChargeMode control. The ZL8800, however, offers dual output or dual phase operation. The ZL8801 offers only dual phase, but it adds DDC current share. With DDC current share, you can share multiple ZL8801 controllers, for up to an eight-phase design.
The recommended current range for the ZL8800 is between 5A and 60A. The ZL8801 has a recommended current range of 40A all the way up to 300A plus. The actual current is dependent on the power stage you use, however, these are just recommendations.
Both parts are offered in a 7mm x 7mm QFN package. Both the ZL8800 and ZL8801 are compensation free, based on our ChargeMode control architecture.
Unlike an analog control loop, a fully digital control loop digitizes the feedback voltage and handles all control and compensation in a digital delay.