Power & Power Management

Overview

Description

The ZL8802 is a dual output or dual phase digital DC/DC controller. Each output can operate independently or be used together in a dual phase configuration for high current applications supporting 2-, 4-, 6-, and 8-phase operation with up to four ZL8802 controllers. The ZL8802 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 the fully digital ChargeMode control, the ZL8802 will 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. The proprietary single-wire Digital-DC™ (DDC) serial bus enables the ZL8802 to communicate between other Intersil digital power ICs. By using the DDC, the ZL8802 achieves complex functions such as inter-IC phase current balancing, sequencing, and fault spreading. This eliminates complicated power supply managers with numerous external discrete components. The ZL8802 features fast output overcurrent protection. The input voltage, output voltages, and DrMOS/MOSFET driver supply voltages are overvoltage and undervoltage protected. Two external temperature sensors and one internal temperature sensor are available for temperature monitoring, one of which can be configured for under- and over-temperature protection. A snapshot parametric capture feature allows users to take a snapshot of operating and fault data during normal or fault conditions. Integrated Low Dropout (LDO) regulators allow the ZL8802 to operate from a single input supply eliminating the need for additional linear regulators. The VDRV LDO output can be used to power external drivers or DrMOS devices. With full PMBus compliance, the ZL8802 is capable of measuring and reporting input voltage, input current, output voltage, output current, as well as the device's internal temperature, two external temperatures, and an auxiliary voltage or temperature input.

Features

  • Unique compensation-free design – always stable
  • Output voltage range: 0.54V to 5.5V
  • Input voltage range: 4.5V to 14V
  • 1% output voltage accuracy over line, load, and temperature
  • ChargeMode control achieves fast transient response, reduced output capacitance, and provides output stability without compensation
  • 2-channel output, 2-, 4-, 6-, or 8-phase output with two, three, or four devices
  • Switching frequency range 200kHz to 1.33MHz
  • Proprietary single-wire DDC (Digital-DC) serial bus enables voltage sequencing and fault spreading with other Intersil digital power ICs
  • Inductor peak and averaged over and undercurrent protection
  • Digital fault protection for output voltage UV/OV, input voltage UV/OV, temperature, and MOSFET driver voltage
  • Accurate average output current measurement with adjustable gain settings for sensing with SPS current monitor outputs or high current, low DCR inductors
  • Monitor ADC measures input voltage, input current, output voltage, driver voltage, internal and external temperature
  • Nonvolatile memory for storing operating parameters and fault events
  • PMBus compliant

Applications

Documentation

Title Type Date
PDF2.94 MB
Datasheet
PDF509 KB
Application Note
PDF397 KB
Application Note
PDF4.68 MB
Guide
PDF714 KB
Guide
PDF393 KB
Guide
PDF257 KB
Manual - Development Tools
PDF5.52 MB
Manual - Development Tools
PDF693 KB
Manual - Hardware
PDF194 KB
Other
PDF208 KB
Price Increase Notice
PDF124 KB
Product Change Notice
PDF846 KB
White Paper

Design & Development

Software & Tools

Software & Tool Pages

Title Type Company
PowerNavigator SoftwareRenesas' PowerNavigator™ software allows simple configuration and monitoring of multiple Digital-DC devices using a PC with a USB interface.Downloads: Software Package Renesas

Software Downloads

Title Type Date
ZIP54.93 MB
Library
ZIP119.19 MB
Library
ZIP59.25 MB
Library
ZIP435 KB
Library
ZIP1.75 MB
Library
ZIP166 KB
Library
ZIP120.25 MB
Software & Tools - Other
ZIP96.49 MB
Software & Tools - Software

Models

Support