Datasheet > ISL95521B

ISL95521B

更新时间： 2024-11-14 14:57:31

品牌	Logo	应用领域
瑞萨 - RENESAS		电池
页数	文件大小	规格书
3页	219K
描述
Hybrid Power Boost (HPB) and Narrow VDC (NVDC) Combo Battery Charger with SMBus Interface

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中文翻译

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数据手册

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ISL95521B 数据手册

DATA SHORT

To request the full datasheet, visit the ISL95521B device page.

ISL95521B

FN8952

Rev.1.00

Jul 19, 2019

Hybrid Power Boost (HPB) and Narrow VDC (NVDC) Combo Battery Charger

with SMBus Interface

The ISL95521B is a highly versatile combo battery

charger configurable for operating as either a Hybrid

Features

• Configurable as an HPB charger or NVDC charger

Power Boost (HPB) charger or a Narrow VDC (NVDC)

charger, supporting 2-, 3-, or 4-cell batteries. Both

configurations allow the battery to work with the adapter

to supply the system load when it exceeds the adapter

capability, referred to as system Turbo mode. The HPB

charger configuration reverse-boosts battery energy to

the system bus to help the adapter provide the system

power in Turbo mode. The NVDC charger configuration

quickly turns on BGATE to enable the battery to help the

adapter provide the system power in Turbo mode.

• Compliant with Intel PROCHOT# and PSYS

requirements

• Adapter current monitor and battery discharging

current monitor

• Uses NFET for all the switches

• Supports battery removal during Battery Learn

mode

• Actively controlled inrush current to prevent FET

damage

The ISL95521B uses N-channel MOSFETs (NFETs) for

all the switches to achieve the best performance and

lowest BOM cost. The internal charge pump is capable of

turning on all the NFETs fast or slow, depending on the

circumstance or the need. The ability to quickly turn on

NFETs prevents system bus voltage drop when the

battery is suddenly removed in Turbo mode or in Battery

Learn mode.

• SMBus programmable settings and high accuracy

• Comprehensive protection features:

• PROCHOT# indicator for system low voltage,

adapter overcurrent, battery overcurrent, or

system overheating

• Hardware-based adapter current and battery

current limits

The ISL95521B provides many protection features

including a PROCHOT# indicator for system low

voltage, adapter overcurrent, battery overcurrent, or

overheating, with an array of SMBus programmable

parameters for maximum flexibility. The ISL95521B

also features a hardware-based adapter-current limit and

battery-current limit in addition to SMBus programmable

limits.

• Supports sudden battery removal in system Turbo

mode

• 16 switching frequency options from 350kHz to 1MHz

• Low quiescent current

• SMBus and auto-increment I C compatible

• Robust Ripple Regulator (R3) modulation scheme

provides excellent light-load efficiency and fast

dynamic response

The ISL95521B provides a high accuracy adapter current

monitor, battery current monitor, and system power

monitor outputs. To provide maximum flexibility for

working with high and low power systems, the

ISL95521B provides several configurable current-sense

resistor value options to achieve the best trade-off of

current sensing accuracy vs power loss.

• 32 Ld 4mmx4mm QFN package

• Pb-free (RoHS compliant)

Applications

The ISL95521B uses the Renesas Robust Ripple

Regulator (R3™) modulation scheme to provide

excellent light-load efficiency and fast dynamic

response.

• Devices with rechargeable 2-, 3-, or 4-cell batteries

Related Literature

For a full list of related documents, visit our website:

• ISL95521B product page

FN8952 Rev.1.00

Jul 19, 2019

Page 1 of 3

12 3

中文翻译

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与ISL95521B相关器件

型号	品牌	获取价格	描述	数据表
ISL95522	RENESAS	获取价格	Hybrid Power Boost (HPB) and Narrow VDC (NVDC) Combo Battery Charger with SMBus Interface
ISL95522A	RENESAS	获取价格	Hybrid Power Boost (HPB) and Narrow VDC (NVDC) Combo Battery Charger with SMBus Interface
ISL95538B	RENESAS	获取价格	Buck-Boost Narrow VDC Battery Charger for Power Bank Application with SMBus Interface and
ISL95710	INTERSIL	获取价格	Terminal Voltage 3V or 5V, 128 Taps Up/Down Interface
ISL95710_06	INTERSIL	获取价格	Digitally Controlled Potentiometer
ISL95710UIU10Z	INTERSIL	获取价格	Terminal Voltage 3V or 5V, 128 Taps Up/Down Interface
ISL95710UIU10Z-T	INTERSIL	获取价格	Terminal Voltage 3V or 5V, 128 Taps Up/Down Interface
ISL95710WIU10Z	INTERSIL	获取价格	Terminal Voltage 3V or 5V, 128 Taps Up/Down Interface
ISL95710WIU10Z-T	INTERSIL	获取价格	Terminal Voltage 3V or 5V, 128 Taps Up/Down Interface
ISL95711	INTERSIL	获取价格	Terminal Voltage 3V or 5V, 128 Taps I2C Serial Interface

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