Datasheet > ISL9237

ISL9237

更新时间： 2024-11-14 01:23:51

品牌	Logo	应用领域
瑞萨 - RENESAS		电池
页数	文件大小	规格书
40页	1606K
描述
Buck-Boost Narrow VDC Battery Charger with SMBus Interface and USB OTG

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ISL9237 数据手册

DATASHEET

ISL9237

FN8723

Rev.5.00

Nov 29, 2017

Buck-Boost Narrow VDC Battery Charger with SMBus Interface and USB OTG

The ISL9237 is a buck-boost Narrow Output Voltage DC (NVDC)

Features

charger utilizing Intersil’s advanced R3™ Technology to provide

• Buck-boost NVDC charger for 1-, 2- or 3-cell Li-ion batteries

• Input voltage range 3.2V to 23.4V (no dead zone)

• System output voltage 2.4V to 13.824V

• System power monitor PSYS output, IMVP-8 compliant

• Up to 1MHz switching frequency

high light-load efficiency, fast transient response and

seamless DCM/CCM transitions for a variety of mobile and

industrial applications.

In Charge mode, the ISL9237 takes input power from a wide

range of DC power sources (conventional AC/DC charger

adapters, USB PD ports, travel adapters, etc.) and safely

charges battery packs with up to 3 cells in a series

configuration.

• LDO output for charger VDD

• Adapter current monitor (AMON)

ISL9237 supports On-the-Go (OTG) function for 2- and 3-cell

battery applications. When OTG function is enabled, the

ISL9237 operates in the reverse Buck mode to provide 5V at

the USB port.

• Battery discharging current monitor (BMON)

• PROCHOT# open-drain output, IMVP-8 compliant

• Allows trickle charging of depleted battery

• Optional ASGATE FET control

As a NVDC topology charger, it also regulates the system

output to a narrow DC range for stable system bus voltage. The

system power can be provided from the adapter, battery or a

combination of both. The ISL9237 can operate with only a

battery, only an adapter or both connected. For Intel IMVP8

compliant systems, the ISL9237 includes PSYS functionality,

which provides an analog signal representing total platform

power. The PSYS output will connect to a wide range of Intersil

IMVP8 core regulators to provide an IMVP8 compliant power

domain function.

• Ideal diode control in Turbo mode

• Supports OTG function for 2- and 3-cell batteries

• SMBus and auto-increment I C compatible

• Two-level adapter current limit available

• Pb-free (RoHS compliant)

• Package 4x4 32 Ld QFN

Applications

The ISL9237 has serial communication via SMBus/I C that

• Mobile devices with rechargeable batteries

allows programming of many critical parameters to deliver a

customized solution. These programming parameters include,

but are not limited to: Adapter current limit, charger current

limit, system voltage setting and trickle charging current limit.

• Industrial devices with rechargeable batteries

Related Literature

• For a full list of related documents please visit our web page

- ISL9237 product page

OPTIONAL

VADP

VSYS

CSOP

CSIN

CSIP

ASGATE

CSON

ADP

ACIN

ISL9237

GND

ACOK

PROCHOT#

AMON/BMON

BATGONE

BGATE

BAT

VBAT

OTGPG/CMOUT

OTGEN/CMIN

FIGURE 1. TYPICAL APPLICATION CIRCUIT

FN8723 Rev.5.00

Nov 29, 2017

Page 1 of 40

12 3 4 5 6 7...40

中文翻译

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与ISL9237相关器件

型号	品牌	获取价格	描述	数据表
ISL9237EVAL2Z	RENESAS	获取价格	Buck-Boost Narrow VDC Battery Charger with SMBus Interface and USB OTG
ISL9237HRZ	RENESAS	获取价格	Buck-Boost Narrow VDC Battery Charger with SMBus Interface and USB OTG; QFN32; Temp Range:
ISL9237HRZ-T	RENESAS	获取价格	Buck-Boost Narrow VDC Battery Charger with SMBus Interface and USB OTG; QFN32; Temp Range:
ISL9237HRZ-T7A	RENESAS	获取价格	Buck-Boost Narrow VDC Battery Charger with SMBus Interface and USB OTG; QFN32; Temp Range:
ISL9237HRZ-TK	RENESAS	获取价格	Buck-Boost Narrow VDC Battery Charger with SMBus Interface and USB OTG; QFN32; Temp Range:
ISL9238	RENESAS	获取价格	Buck-Boost Narrow VDC Battery Charger with SMBus Interface and USB OTG
ISL9238B	RENESAS	获取价格	Buck-Boost Narrow VDC Battery Charger with SMBus Interface and USB OTG
ISL9238C	RENESAS	获取价格	Buck-Boost Narrow VDC Battery Charger with SMBus Interface and USB OTG
ISL9241	RENESAS	获取价格	Buck-Boost Configurable Battery Charger with SMBus Interface and USB Power Delivery
ISL9301	INTERSIL	获取价格	High Input Voltage Charger With Power Path Management

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