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SGM4064 Dataheets PDF



Part Number SGM4064
Manufacturers SG Micro
Logo SG Micro
Description Over-Voltage Protection & Li+ Charger Front-End Protection
Datasheet SGM4064 DatasheetSGM4064 Datasheet (PDF)

SGM4064 Over-Voltage Protection IC and Li+ Charger Front-End Protection IC with LDO Mode GENERAL DESCRIPTION The SGM4064 is a charger front-end integrated circuit designed to provide protection to Li-Ion batteries from failures of the charging circuitry. The IC continuously monitors the input voltage and the battery voltage. The device operates like a linear regulator, maintaining a 5.1V output with input voltages up to the input over-voltage threshold (VOVP = 6.8V). During input over-voltage c.

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SGM4064 Over-Voltage Protection IC and Li+ Charger Front-End Protection IC with LDO Mode GENERAL DESCRIPTION The SGM4064 is a charger front-end integrated circuit designed to provide protection to Li-Ion batteries from failures of the charging circuitry. The IC continuously monitors the input voltage and the battery voltage. The device operates like a linear regulator, maintaining a 5.1V output with input voltages up to the input over-voltage threshold (VOVP = 6.8V). During input over-voltage conditions, the IC immediately turns off the internal pass FET disconnecting the charging circuitry from the damaging input source. Additionally, if the battery voltage rises to unsafe levels while charging, power is removed from the system. The IC also monitors its die temperature and switches off if it exceeds 145 ℃ . When the IC is controlled by a processor, the IC provides status information about fault conditions to the host. The SGM4064 is available in Green TDFN-2×2-8L package and is rated over the -40 ℃ to +85 ℃ temperature range. FEATURES ● Input Over-Voltage Protection ● Accurate Battery Over-Voltage Protection ● Soft-Start to Prevent Inrush Currents ● Soft-Stop to Prevent Voltage Spikes ● 18V Maximum Input Voltage ● Supports up to 1.5A Load Current ● Thermal Shutdown ● Enable Function ● Fault Status Indication ● Available in Green TDFN-2×2-8L Package APPLICATIONS Smart Phones, Mobile Phones PDAs MP3 Players Low-Power Handheld Devices APPLICATION SCHEMATIC AC VDC Adapter GND OUT IN CIN 2.2μF SGM4064 VBAT RILIM ILIM VSS Charging Circuit COUT 2.2μF SYSTEM SG Micro Corp www.sg-micro.com OCTOBER 2017 – REV. A. 2 SGM4064 Over-Voltage Protection IC and Li+ Charger Front-End Protection IC with LDO Mode PACKAGE/ORDERING INFORMATION MODEL SGM4064 PACKAGE DESCRIPTION TDFN-2×2-8L SPECIFIED TEMPERATURE RANGE -40℃ to +85℃ ORDERING NUMBER SGM4064YDE8G/TR PACKAGE MARKING 4064 XXXX PACKING OPTION Tape and Reel, 3000 NOTE: XXXX = Date Code. Green (RoHS & HSF): SG Micro Corp defines "Green" to mean Pb-Free (RoHS compatible) and free of halogen substances. If you have additional comments or questions, please contact your SGMICRO representative directly. ABSOLUTE MAXIMUM RATINGS IN (with respect to VSS)..................................... -0.3V to 28V OUT (with respect to VSS)....... -0.3V to MIN (VIN + 0.3V, 6V) ILIM, FAULT , CE , VBAT (with respect to VSS) ............................................................................. -0.3V to 6V Output Source Current (OUT Pin)...................................... 2A Output Sink Current ( FAULT Pin)................................. 15mA Package Thermal Resistance TDFN-2×2-8L, θJA ...................................................... 75℃/W Junction Temperature.................................................+150℃ Storage Temperature Range ........................ -65℃ to +150℃ Lead Temperature (Soldering 10 sec) ........................+260℃ ESD Susceptibility HBM............................................................................. 4000V MM................................................................................. 200V RECOMMENDED OPERATING CONDITIONS Operating Temperature Range ....................... -40℃ to +85℃ IN Voltage Range, VI ...........................................3.3V to 18V Current, OUT Pin, IO ............................................1.5A (MAX) OCP Programming Resistor, RILIM ................. 92kΩ to 640kΩ OVERSTRESS CAUTION Stresses beyond those listed may cause permanent damage to the device. Functional operation of the device at these or any other conditions beyond those indicated in the operational section of the specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect reliability. ESD SENSITIVITY CAUTION This integrated circuit can be damaged by ESD if you don’t pay attention to ESD protection. SGMICRO recommends that all integrated circuits be handled with appropriate precautions. Failure to observe proper handling and installation procedures can cause damage. ESD damage can range from subtle performance degradation to complete device failure. Precision integrated circuits may be more susceptible to damage because very small parametric changes could cause the device not to meet its published specifications. DISCLAIMER SG Micro Corp reserves the right to make any change in circuit design, specification or other related things if necessary without notice at any time. SG Micro Corp www.sg-micro.com OCTOBER 2017 2 SGM4064 PIN CONFIGURATION Over-Voltage Protection IC and Li+ Charger Front-End Protection IC with LDO Mode (TOP VIEW) IN 1 VSS 2 NC 3 FAULT 4 GND 8 OUT 7 ILIM 6 VBAT 5 CE TDFN-2×2-8L PIN DESCRIPTION PIN 1 2 3 4 5 6 7 8 Exposed Pad NAME IN VSS NC FAULT CE VBAT ILIM OUT GND FUNCTION Input Power. Connected to external DC supply. Bypass IN to VSS with a ceramic capacitor (1μF MIN). G.


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