Datasheet > SGM41524

SGM41524

更新时间： 2023-09-03 20:38:20

品牌	Logo	应用领域
圣邦微 - SGMICRO		电池
页数	文件大小	规格书
16页	828K
描述
Compact Switch Li+/Poly Battery Charger Safe and Reliable Charging

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SGM41524 数据手册

SGM41524

Compact Switch Li+/Poly Battery Charger

Safe and Reliable Charging

GENERAL DESCRIPTION

FEATURES

The SGM41524 is a compact and efficient Lithium ion

(Li+) or Lithium ion polymer (Li+/polymer) battery

charger. It can provide power and charge the single cell

battery of a system typically found in compact portable

device. An internal switching buck converter regulates

the supply input for charging the battery and powering

the system even if the battery is absent. The converter

can also operate as a simple pass-through switch with

no switching if the load and input voltages are close.

● Constant Current, Constant Voltage (CCCV)

Charging with Floating Time-Out Timer

● Constant Current Pre-charge

● Maximum 2.3A Charging for 4.2V to 4.5V Battery

● 1.34MHz Switching Frequency

● Programmable Charge Voltage and Current

● 4.15V Input Voltage Regulation

● Output Voltage Fold-Back Charge Retaining

● Thermal Regulation Options

 SGM41524: +115℃

A typical application circuit is shown in Figure 2. The

SGM41524 features resistor programmable constant

current and constant voltage charging capability plus a

charge limiting timer and operates in compliance with

the BAJ/JEITA safety guide. An NTC (β = 3950K) can

be used for battery temperature sensing on top of the

internal junction temperature monitoring. The IND

status output pin can be connected to LEDs to indicate

the operating conditions, such as power input ok (POK),

in charging (CHG), VIN over-voltage (POK and CHG

alternate blinking) and no power/disabled (OFF).

Voltage fold-back on the output is provided to power the

system from the input while retaining battery charge

and preventing overcharge. Input under-voltage

regulation is implemented by reducing the load current

such that VIN stays above a minimum when the source

is weak. Similarly, the die temperature can be regulated

and limited by reducing output power to avoid device or

the circuit board being overheated.

 SGM41524C: +55℃

● Typical Peak Efficiency of 92% at 1.5A, V_IN= 5V

● -40℃ to +85℃ Operating Temperature Range

● Available in a Green TDFN-2×3-8BL Package

APPLICATIONS

Powering and Charge Control of Systems with 500mAh

to 6000mAh Li+/Polymer Batteries

These features simplify the system design and ensure

safe and reliable operation as well as improved user

experience.

The SGM41524 is delivered in a Green TDFN-2×3-8BL

package. The device operates in -40℃ to +85℃ with

two thermal regulation options for +55℃ or for +115℃.

SG Micro Corp

NOVEMBER 2020 – REV. A. 1

www.sg-micro.com

12 3 4 5 6 7...16

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与SGM41524相关器件

型号	品牌	获取价格	描述	数据表
SGM41524A	SGMICRO	获取价格	Compact Switch Li+/Polymer Battery Charger with Safe and Reliable Charging
SGM41524B	SGMICRO	获取价格	Compact Switch Li+/Polymer Battery Charger with Safe and Reliable Charging
SGM41526	SGMICRO	获取价格	1.6MHz Synchronous Li-Ion and Li-Polymer Stand-Alone Battery Charger with Automatic Power
SGM41527	SGMICRO	获取价格	1.6MHz Synchronous Li-Ion and Li-Polymer Stand-Alone Battery Charger with Automatic Power
SGM41528	SGMICRO	获取价格	I2C Controlled 2A, 2-Cell Battery Charger with Boost Mode for USB Input
SGM41541	SGMICRO	获取价格	High Input Voltage, 3.78A Single-Cell Battery Charger with NVDC Power Path Management
SGM41542	SGMICRO	获取价格	High Input Voltage, 3.78A Single-Cell Battery Charger with NVDC Power Path Management
SGM41543/SGM41543D	SGMICRO	获取价格	High Input Voltage, 3.78A Single-Cell Battery Charger with NVDC Power Path Management
SGM41562A	SGMICRO	获取价格	500mA Single-Cell Li-Ion Battery Charger with Power Path Management
SGM41562B	SGMICRO	获取价格	500mA Single-Cell Li-Ion Battery Charger with Power Path Management

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