Datasheet > SGM41526

SGM41526

更新时间： 2023-09-03 20:25:19

品牌	Logo	应用领域
圣邦微 - SGMICRO		电池
页数	文件大小	规格书
31页	1309K
描述
1.6MHz Synchronous Li-Ion and Li-Polymer Stand-Alone Battery Charger with Automatic Power Path Selector

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SGM41526 数据手册

SGM41526/SGM41527

1.6MHz Synchronous Li-Ion and Li-Polymer

Stand-Alone Battery Chargers

with Automatic Power Path Selector

● High Accuracy

FEATURES

 ±0.4% Charge Voltage Regulation

 ±5% Charge Current Regulation

 ±4% Input Current Regulation

● Safety

● 4A Synchronous 1.6MHz PWM Charger

 Cycle-by-Cycle Current Limit

 Integrated 24V Switching MOSFETs

 Integrated Bootstrap Diode

 Digital Soft-Start

 Thermal Regulation (Current Limit for T_J= +120℃)

 Thermal Shutdown

● Up to 95.2% Charge Efficiency

 Battery Thermistor Sense Hot/Cold Charge Suspend

● 30V Absolute Maximum Input Voltage Rating with

Adjustable Over-Voltage Threshold

 Input Under-Voltage Lockout (UVLO)

 Input Over-Voltage (ACOV) Protection

● 4.5V to 22V Input Operating Voltage Range

● Automatic Power Path Selector (Battery/Adapter)

● Dynamic Power Management (DPM)

● Battery Charge Voltage

APPLICATIONS

Tablet PCs

 SGM41526: Select 2-, 3-, or 4-Cell with 4.2V/Cell

 SGM41527: Adjustable Charge Voltage

● 18μA Battery Current (No Adapter)

Portable Terminals and Printers

Portable Medical Equipment

Battery Backup Systems

● 1.3mA Input Current (Charge Disabled)

TYPICAL APPLICATION

R_AC

10mΩ

I_IN

V_IN

I_OUT

12V

Adapter

Input

V_SYS

System

R_IN

2Ω

C₁₁

0.1μF

C₄

10μF

C₁₂

0.1μF

ACN PVCC

nBATDRV

R₁₂

4.02kΩ

ACP

CMSRC

C_IN

2.2μF

R₁₄1kΩ

R₁₁

4.02kΩ

R_SR

10mΩ

ACDRV

3.3μH

V_BAT

C₁₀

R₆1MΩ

OVPSET

R₇

100kΩ

R₁10Ω

C₉

C₅

0.047μF

C₈

0.1μF

SGM41526

10μF 10μF

V_BAT

BTST

AVCC

C₁

1μF

I_BAT

REGN

C₆

V_REF

1μF

VREF

ISET

R₄

R₂

232kΩ

PGND

100kΩ

C₇

0.1μF

R_T

R₃

103AT

SRP

SRN

32.4kΩ

V_REF

R₈

5.23kΩ

ACSET

CELL

C₂

1μF

R₅

22.1kΩ

Floating

R₁₀

1.5kΩ

C₃

0.1μF

R₉

30.1kΩ

Thermal

Pad

TTC

STAT

(AGND)

Figure 1. SGM41526 Typical Application Circuit (with a 2-Cell Battery)

SG Micro Corp

MARCH 2023 – REV. A. 2

www.sg-micro.com

12 3 4 5 6 7...31

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