MAX77962

23VIN 3.2AOUT USB-C Buck-Boost Charger with Integrated FETs for 2S Li-Ion Batteries

Industry's Smallest Buck-Boost Charger with Wide Input Range for USB Type-C/Power Delivery Applications


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说明

The MAX77962 is a high-performance wide-input 3.2A buck-boost charger with a Smart Power Selector™ and operates as a reverse buck without an additional inductor, allowing the IC to power USB On-the-Go (OTG) accessories. The device integrates low-loss power switches, and provides small solution size, high-efficiency, low heat, and fast battery charging. The reverse buck has true-load disconnect and is protected by an adjustable output cur- rent limit. The device is highly flexible and programmable through I2C configuration or autonomously through resistor configuration.

The battery charger includes a Smart Power Selector to accommodate a wide range of battery sizes and system loads. The Smart Power Selector allows the system to start up gracefully when an input source is available even when the battery is deeply discharged (dead battery) or missing. For battery safety/authentication reasons, the IC can be configured to keep charging disabled, and allow the DC-DC to switch and regulate the SYS voltage. The system processor can later enable charging using the appropriate I2C commands. Alternatively, the IC can be con- figured to automatically start charging.

MAX77962: Simplified Block Diagram MAX77962: Simplified Block Diagram 放大+

关键特性

  • 3.5V to 23V Input Operating Range, 30VDC Withstand Voltage
  • Reverse Leakage Protection
  • 50mA to 3.15A Programmable Input Current Limit
  • 50mA to 3.2A Programmable Constant Current Charge
  • Remote Differential Voltage Sensing
  • 600kHz or 1.2MHz Switching Frequency Options
  • System Instant On with Smart Power Selector Power-Path
  • ​Charge Safety Timer
  • Die Temperature Regulation with Thermal Foldback Loop
  • Input Power Management with Adaptive Input Current Limit (AICL) and Input Voltage Regulation
  • 10mΩ BATT to SYS Switch, Up to 10A Overcurrent Threshold
  • ​Reverse Buck Mode 5.1V/1.5A to Support USB OTG
  • JEITA Compliant with NTC Thermistor Monitor
  • I2C or Resistor Programmable
  • 3.458mm x 3.458mm 49-Bump WLP

应用

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请查看具体的参数规格 Battery Chargers (74)


Part NumberLithium Ion CellsProtected VIN
(V)
Charging VIN
(V)
Charge Rate Set byMax. ICHG
(A)
Charge TerminationCharge RegulationOper. Temp.
(°C)
Package/PinsBudgetary
Price
maxmaxSee Notes
MAX77962 NEW!23023
I2C/SMBus
Resistor
3.2
External Control
Min. Charge Current
Timer
Switchmode-40 to +85
WLP/49
$2.35 @1k

Pricing Notes:
价格仅供参考,用于同类产品的比较。所提供报价为美元,需要依汇率折合成人民币。该价格将因当地关税、税率和汇率而异。有关特定订购量和指定版本的报价和供货问题,请参考:价格与供货网站或与指定代理商联系。

MAX77962EVKIT-06: Evaluation Kit for the MAX77962
MAX77962EVKIT-12: Evaluation Kit for the MAX77962
MAX77958EVKIT-2S3: Evaluation Kit for the MAX77958/MAX77962
申请可靠性报告: MAX77962 
型号   生产流程   工艺   样本量   不合格   FIT @ 25°C   FIT @ 55°C   Material Composition  

备注: 通过技术手段对故障率进行汇总,并映射到相关的材料部件号。 故障率与被测件的数量密切相关。

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