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SMB135E-470V 数据手册 ( 数据表 ) - Summit Microelectronics

零件编号产品描述(功能)生產廠家
SMB135E-470V Programmable Switch-mode, USB/AC Input Li+ Battery Charger with TurboCharge? Mode* Summit-Microelectronics
Summit Microelectronics Summit-Microelectronics
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SMB135E-470V Datasheet PDF : SMB135E-470V pdf   
SMB135 image

INTRODUCTION
The SMB135 is a programmable single-cell lithium-ion/lithium-polymer battery charger for a variety of portable applications. The device provides a simple and efficient way to charge high-capacity Li-Ion batteries via a USB port or an AC adapter. Unlike conventional devices, the SMB135’s high-efficiency operation eliminates large internal temperature rise and localized hot spot in handheld equipment. Summit’s proprietary TurboChargeTM mode allows a 750mA charge current from a 500mA USB port, resulting to significantly reduced charge times.
Charge control includes qualification, trickle-charge, pre-charge, constant current/constant voltage, and termination/safety settings that are fully programmable via a serial I2C/SMBus making the device truly a flexible solution. Fast charge current level (one or five unit loads) can be set via I2C or an input pin (USB500/100). An Enable (EN) pin is also provided for suspending USB charging and allowing the device to work in parallel with AC charger, which may already be integrated into a PMIC device. In this case, the SMB135 does not allow current to flow back to the USB port.
The SMB135 offers a wide variety of features that protect the battery pack as well as the charger and input circuitry: over-current, under/over-voltage and thermal protection. Ultra-precise, 1% accurate, Kelvin-sensed ADOC™ technology allows accurate control of battery float voltage and improves battery capacity utilization. Status can be monitored via the serial port for charge state and fault conditions. In addition, one LED driver output can be used to signal charge status or an under-/over-voltage condition. As a protection mechanism, when the junction temperature approaches approximately 110°C, the PWM switcher will start to cut back on the duty cycle, to reduce current.
The SMB135 is available in a space-saving 1.3mm x 2.1mm uCSP™ package with lead-free balls as well as in a lead-free 5x5 QFN-32 package, and is rated over the -30°C to +85°C temperature range.

FEATURES & APPLICATIONS
• Programmable USB/AC Li-Ion battery charger
• TurboChargeTM Mode: 750mA output from 500mA US
• High-efficiency current-mode PWM controller
   o 750kHz to 1.25MHz switching frequency
   o 0% to 100% duty-cycle
• 4.35 to 6.5V input voltage range
• Small 1.3 x 2.1 uCSPTM-15 package (0.4mm pitch)
• High-accuracy output voltage regulation: 1%
• Low reverse leakage current
• Digital programming of all major parameters via I2C interface (with several addresses) and non-volatile memory
   o Battery voltage set point
   o Pre-charge, fast charge, termination current
   o Fast charge voltage threshold
   o Temperature limits
   o Automatic restart threshold
• Status/Fault indicator
• Stability with ceramic capacitors
• Wide range of protection features
   o Thermal monitor
   o Safety timers
   o Current limit
   o Input/output over-voltage lockout
  
Applications
• GSM Handsets
• UMTS Handsets
• Portable Media & Gaming Players
• Digital camcorders/still cameras
• Handheld GPS/PDAs

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SMB135E-470V 有关数据资料列表

零件编号产品描述(功能)PDF生產廠家
BQ24618 Stand-Alone USB-Friendly Synchronous Switch-Mode Li-Ion or Li-Polymer Battery Charger with System Power Selector and Low Iq BQ24618 View Texas Instruments
BQ24157S 1.55-A Fully Integrated Switch-Mode One-Cell Li-Ion Charger With Full USB Compliance and USB-OTG Support BQ24157S View Texas Instruments
BQ24616 JEITA Guideline Compatible Stand-Alone Synchronous Switch-Mode Li-Ion or Li-Polymer Battery Charger with System Power Selector and Low Iq BQ24616 View Texas Instruments
BQ24150A Fully Integrated Switch-Mode One-Cell Li-Ion Charger With Full USB Compliance and USB-OTG Support BQ24150A View Texas Instruments
BQ24153 Fully Integrated Switch-Mode One-Cell Li-Ion Charger With Full USB Compliance and USB-OTG Support BQ24153 View Texas Instruments
BQ24153A Fully Integrated Switch-Mode One-Cell Li-Ion Charger With Full USB Compliance and USB-OTG Support BQ24153A View Texas Instruments
ADP3808 High Efficiency Switch Mode Li-Ion Battery Charger ADP3808 View Analog Devices
BQ24185 Fully Integrated Switch-Mode One-Cell Li-Ion Charger with Full USB Compliance and Accessory Power Connection BQ24185 View Texas Instruments
ADP3808A High Efficiency Switch Mode Li-Ion Battery Charger ADP3808A View ON Semiconductor
BQ24610 Stand-Alone Synchronous Switched-Mode Li-Ion or Li-Polymer Battery Charger With System Power Selector and Low Iq BQ24610 View Texas Instruments

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