Datasheet > ZL8801ALAFT7A

ZL8801ALAFT7A

更新时间： 2024-11-30 01:08:23

品牌	Logo	应用领域
英特矽尔 - INTERSIL		/
页数	文件大小	规格书
87页	2024K
描述
Dual Phase PMBusâ¢ ChargeModeâ¢ Control DC/DC Digital Controller

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ZL8801ALAFT7A 数据手册

DATASHEET

Dual Phase PMBus™ ChargeMode™ Control DC/DC

Digital Controller

ZL8801

Features

• Unique compensation-free design – always stable

• Output voltage range: 0.54V to 5.5V

• Input voltage range: 4.5V to 14V

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.

• 1% output voltage accuracy over line, load and temperature

• Charge mode control achieves fast transient response,

reduced output capacitance and provides output stability

without compensation

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.

• Single 2-phase output, up to 8 phases with multiple devices

• Switching frequency range 200kHz to 1.33MHz

• Proprietary single wire DDC (Digital-DC) serial bus enables

voltage sequencing and fault spreading with all other Intersil

digital power ICs

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.

• Tracking of an external power supply in the single 2-phase

configuration

• Cycle-by-cycle inductor peak current protection

• Digital fault protection for output voltage UV/OV, input

voltage UV/OV, temperature and MOSFET driver voltage

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.

• 10-bit cycle-by-cycle average output current measurement

with adjustable gain settings for sensing with high current,

low DCR inductors

• 10-bit monitor ADC measures input voltage, input current,

output voltage, internal, external temperature, driver voltage

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.

• Configurable to use standalone MOSFET drivers or

integrated driver-MOSFET (DrMOS) devices

• Nonvolatile memory (NVRAM) for storing operating

parameters and fault events.

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.

• PMBus™ compliant

Applications

• Servers/storage equipment

• Telecom/datacom equipment

• Power supplies (memory, DSP, ASIC, FPGA)

Related Literature

• AN1948, “ZL8801-4PH-DEMO1Z Demonstration Board User

Guide”

TABLE 1. KEY DIFFERENCES BETWEEN FAMILY OF PARTS

PART NUMBER DUAL OUTPUT DUAL PHASE DDC CURRENT SHARE

• UG005, “ZL8801-2PH-DEMO1Z Demonstration Board User

Guide”

ZL8800

ZL8801

Yes

• AN1900, “USB to PMBus™ Adapter User Guide”

Yes

March 27, 2015

FN8614.3

CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.

Intersil (and design), ChargeMode and Digital-DC are trademarks owned by Intersil Corporation or one of its subsidiaries.

All other trademarks mentioned are the property of their respective owners.

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与ZL8801ALAFT7A相关器件

型号	品牌	获取价格	描述	数据表
ZL8801ALAFTK	RENESAS	获取价格	Dual Phase PMBusâ¢ ChargeModeâ¢ Control DC/
ZL8801ALAFTK	INTERSIL	获取价格	Dual Phase PMBusâ¢ ChargeModeâ¢ Control DC/
ZL8802	RENESAS	获取价格	Dual Channel/Dual Phase PMBus ChargeMode Control DC/DC Digital Controller
ZL8802ALAFT	RENESAS	获取价格	Dual Channel/Dual Phase PMBus ChargeMode Control DC/DC Digital Controller
ZL8802ALAFT7A	RENESAS	获取价格	Dual Channel/Dual Phase PMBus ChargeMode Control DC/DC Digital Controller
ZL8802ALAFTK	RENESAS	获取价格	Dual Channel/Dual Phase PMBus ChargeMode Control DC/DC Digital Controller
ZL88601LDG1	MICROSEMI	获取价格	Telecom Circuit, 1-Func, 9 X 9 MM, GREEN, QFN-64
ZL8V2B	YEASHIN	获取价格	500 mW DO-35 Hermetically Sealed Glass Zener Voltage Regulators
ZL9006M	INTERSIL	获取价格	Digital DC/DC PMBus 6A Power Module
ZL9006MIRZ	INTERSIL	获取价格	Digital DC/DC PMBus 6A Power Module

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