Datasheet > ISL95521A

ISL95521A

更新时间： 2024-09-27 14:57:43

品牌	Logo	应用领域
瑞萨 - RENESAS		电池
页数	文件大小	规格书
2页	185K
描述
Hybrid Power Boost (HPB) and Narrow VDC (NVDC) Combo Battery Charger with SMBus Interface

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ISL95521A 数据手册

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To request the full datasheet, visit the ISL95521A device page.

ISL95521A

FN8841

Rev 2.00

Jul.19.19

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

SMBus Interface

The ISL95521A is a highly versatile combo battery charger

Features

configurable for operating as either a Hybrid Power Boost (HPB)

• Configurable as HPB charger or NVDC charger

charger or a Narrow VDC (NVDC) charger, supporting 2-, 3-, or

4-cell batteries. Both configurations allow the battery to work with

the adapter together 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

• SMBus programmable settings and high accuracy

• Comprehensive protection features:

The ISL95521A 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.

- PROCHOT# indicator for system low voltage, adapter

overcurrent, battery overcurrent, and system overheating

- Hardware-based adapter current and battery current

limits

- Supports sudden battery removal in system Turbo mode

The ISL95521A 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. It also

features hardware based adapter current limit and

• 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

battery-current limit in addition to SMBus programmable limits.

The ISL95521A provides a high accuracy adapter current

monitor, battery current monitor, and system power monitor

outputs. To provide maximum flexibility for working with high

power and low power systems, the ISL95521A provides

several configurable current-sense resistor value options to

achieve the best trade-off of current sensing accuracy vs power

loss.

• 32 Ld 4x4mm QFN package

• Pb-free (RoHS compliant)

Applications

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

Related Literature

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

• ISL95521A device page

The ISL95521A uses the Renesas Robust Ripple Regulator (R3™)

modulation scheme to provide excellent light-load efficiency and

fast dynamic response. The ISL95521A is available in a 32 Ld

4x4mm QFN package.

AFET

SFET

AFET

SFET

VADP

VSYS

SYSTEM

VSYS

SYSTEM

ADAPTER

ASGATE CMSRC

UGATE

BFET

ASGATE CMSRC

UGATE

BFET

VBAT

PHASE

HPB

PHASE

NVDC

CHARGER

LGATE

PROG

BGATE

VBAT

BGATE

VBAT

FIGURE 1. HPB CHARGER CONFIGURATION

FIGURE 2. NVDC CHARGER CONFIGURATION

FN8841 Rev 2.00

Jul.19.19

Page 1 of 2

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与ISL95521A相关器件

型号	品牌	获取价格	描述	数据表
ISL95521AHRZ	RENESAS	获取价格	Hybrid Power Boost (HPB) and Narrow VDC (NVDC) Combo Battery Charger with SMBus Interface
ISL95521AHRZ-T	RENESAS	获取价格	Hybrid Power Boost (HPB) and Narrow VDC (NVDC) Combo Battery Charger with SMBus Interface
ISL95521AIRZ-T	RENESAS	获取价格	Hybrid Power Boost (HPB) and Narrow VDC (NVDC) Combo Battery Charger with SMBus Interface
ISL95521B	RENESAS	获取价格	Hybrid Power Boost (HPB) and Narrow VDC (NVDC) Combo Battery Charger with SMBus Interface
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

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