漢能科技日前發表採用ARM架構，專為多核心處理器所設計開發的高階可編程電源管理IC (PMIC)-HE71001。

HE71001配置有4個DC/DC轉換器(3 converters, 1 controller)可並行提供3 x 1.5A和10A電流至處理器、外部記憶體、無線通訊(WLAN和藍牙)、GPS、FM接收器以及數據機所使用。因此可充分滿足智慧型手機、平板電腦和嵌入式系統等廣泛的設計需求。

 

HE71001內部配置有9個低壓差線性穩壓器(LDO)、9個通用輸入／輸出埠(GPIO)，和4個DC/DC轉換器。透過I2C介面可對任何電源開啟順序、輸出電壓和動態電壓控制(DVC)加以編程，提供設計人員最有效降低系統功耗的機會。例如相關應用可被完全斷電，再透過HE71001的監測功能重新啟動。此外，進一步透過動態電壓調整(DVS)的功能可高效提升電池的使用壽命，這是分離式電源方案所無法提供的優勢。

 

HE71001的 DC/DC轉換器可自動判別並切換多種模式，最高可操作於3MHz開關頻率，運用小於1.0uH的電感，並維持高峰值電流。

 

HE71001的供電範圍介於2.7V至5.5V之間，適用於單顆鋰電池、標準5V電源或USB電源在行動裝置及非行動裝置系統上的應用。操作溫度介於-40至+85°C之間，採用8 x 8mm QFN封裝，提供經濟且彈性的PCB設計需求，目前已正式導入系統設計並量產。

 

• Nine configurable GPIOs with various features:

　- Four behave as external resources enables (including power-up sequence) and are controlled by state-machine

　- Logic-level detection and can generate masked interrupt for wake-up (as GPI)

　- Two have 10 mA current sink capability for driving LEDs

　- DC-DC switching synchronization through an external 3-MHz clock

• Embedded power controller (EPC) with OTP programmability 

• One efficient step-down DC-DC converter for I/O power

• Two efficient step-down DC-DC converter for processor cores (VDD1, VDD2)

• One controller for external FETs (VDDCtrl)

• Dynamic voltage scaling for processor cores

• Eight LDO voltage regulators and one RTC LDO (supply for internal RTC)

• One high-speed I2C interface for general-purpose control commands (CTL-I2C)

• Two enable signals to control power resources (EN1, EN2) Another option is to use the pins as a high-speed I2C interface for voltage scaling for VDD1, VDD2

• Two comparators connected to VCCS pin for system control

• Two reset inputs: cold reset (HDRST) and power initialization reset (PWRDN) for thermal reset input

• 32-kHz clock and reset (NRESPWRON) for system and additional output for reset signal

• A real-time clock (RTC) resource with:

　- An oscillator for 32.768-kHz crystal or a 32-kHz built-in RC oscillator

　- Calendar, date, and time 

　- Alarm capability

• Two ON/OFF LED pulse generators and one PWN generator

• Thermal shutdown protection and hot-die detection

• Watchdog

 

 

 

 

 

 

Datasheet, Sample, Application Circuit.