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reference designSGM41523 | Demoboard SGM41523 Demo Board

SG-Micro SGM41523 | Demoboard SGM41523 Demo Board

Compact Switch, 2.5A Standalone Single-Cell Battery Charger with Safe and Reliable Charging

Overview

TopologyOther Topology
Input voltage5-12 V
IC revisionV02

Description

The SGM41523/SGM41523A/SGM41523B/SGM41523C/SGM41523D are compact switch standalone battery chargers for single-cell Li-Ion or Li-polymer battery. They are featured with resistor programmable maximum charge current, ordering selections of preset end of charge current and pre-charge current and floating time out. The SGM41523/SGM41523A/ SGM41523B/SGM41523C/SGM41523D also have other safety features, such as over-voltage and over-current protections, fold-back retaining, input under-voltage lockout, battery temperature monitoring and thermal shutdown. These features ensure safe and reliable operation, ease of design and a comfortable user experience.The SGM41523/SGM41523A/SGM41523B/SGM41523C/SGM41523D are available in a Green TDFN-3×3-12L package. They operate over an ambient temperature range of -40℃ to +85℃.

Features

  • Maximum 2.5A Charging for 4.1V to 4.45V Battery
  • 1.33MHz Switch Frequency
  • 93% Charge Efficiency at 1.5A from 5V Input
  • 91% Charge Efficiency at 1.5A from 9V Input
  • Charging Voltage and Current Programmable
  • CC/CV Interface for Charge Current and Battery Voltage Settings
  • 4.2V Input Voltage Regulation
  • 4.2V to 12V Operating Input Voltage Range
  • Up to 18V Sustainable Voltage
  • 13.5V Over-Voltage Protection with 100ns Turn-Off Timer
  • Output Voltage Fold-Back Retaining
  • Optional High or Low Charge Enable
  • Active Low (SGM41523/SGM41523A/SGM41523D)
  • Active High (SGM41523B/SGM41523C)
  • JEITA Guideline Compliance
  • T2 Threshold 10℃ (SGM41523/SGM41523B/SGM41523D)
  • T2 Threshold 15℃ (SGM41523A/SGM41523C)
  • Charge Prohibited when > T3 (SGM41523D)
  • -40℃ to +85℃ Operating Temperature Range
  • Available in a Green TDFN-3×3-12L Package

Typical applications

  • Mobile Phone, Wearables, Portable Audio Speaker
  • Charger

More information

Products

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Order Code
Data­sheet
Simu­lation
Downloads
Status
Product series
L(µH)
IRP,40K(A)
ISAT,10%(A)
ISAT,30%(A)
RDC max.(mΩ)
fres(MHz)
Mount
SamplesAvailability & Sample
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74437324010
SPECWE-LHMI SMT Power Inductor, 1 µH, 6.2 A
Simu­lation
Availability
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Downloads9 files

EDA models: Components ZIP

CAD files ZIP

Electric models ZIP

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Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWE-LHMI SMT Power Inductor
Inductance1 µH
Performance Rated Current6.2 A
Saturation Current @ 10%6.5 A
Saturation Current @ 30%12.5 A
DC Resistance27 mΩ
Self Resonant Frequency89 MHz
MountSMT 
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