产品概述 返回TOP74D嘉泰姆

The CXPU33107/CXPU33107B provide a complete power supply solution for digital cameras. They improve performance, component count, and size compared to other multi-channel controllers in 2-cell AA, 1-cell Li-Ion, and multi-battery designs. On-chip MOSFETs provide up to 92~95% efficiency for critical power supplies. Except for CCDBST and LED Driver, All channels DC/DC operate at one fixed frequency of 1.5MHz to optimize size, cost, and efficiency. They also feature True-Shutdown as well as internal compensation to minimize external component count.

   产品特点 返回TOP74D嘉泰姆

1.5V ~ 5.5V Input Voltage Operation. 74D嘉泰姆

95% Efficient DC/DC Converter. 74D嘉泰姆

Highly Integrated 7-CH DC/DC with integrated Power MOSFETs. 74D嘉泰姆

Main Channel Selectable Buck or Boost for 2*AA or Li-Ion Application. Built-in 6 Channel Synchronous Rectified Current-Mode PWM Converter, 1 Channel Non-Synchronous Rectified Current-Mode PWM Converter. Selectable Boost Type with LED open protection or Current Regulation Type LED Driver. 74D嘉泰姆

32-steps brightness control for LED Driver Built-in HV LDO and RTC LDO Low Power Consumption ( Sleep Mode ) < 10μA. 74D嘉泰姆

Built-In Power ON/OFF Sequence for 4 Channel Synchronous Rectified Converter. 74D嘉泰姆

Built-In Power ON Sequence for CCD+,CCDpower. 74D嘉泰姆

Built-In Short Circuit Protection (SCP)&Under Voltage Protection (UVP) . 74D嘉泰姆

Cycle-by-Cycle current limit for DC/DC Converter Built-In Thermal Shutdown Function. 74D嘉泰姆

Built-In Battery OVP Function. 74D嘉泰姆

Built-In Soft-Start Function. 74D嘉泰姆

Built-In True Shutdown in Boost Converter. 74D嘉泰姆

Fixed 1.5MHz / 750KHz Operating Frequency. 74D嘉泰姆

TQFN4x4-32 Package.74D嘉泰姆

   应用范围 返回TOP74D嘉泰姆

DSC Power Supply74D嘉泰姆

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