Hanergy 汉能科技发表ARM四核心处理器之电源整合方案 输出电流可达3╳1.5A和10A配置9个LDO并具备数字I2C接口
2013-07-03
[产品介绍]
汉能科技日前发表采用ARM架构,专为多核心处理器所设计开发的高阶可编程电源管理IC (PMIC)-HE71001。
HE71001配置有4个DC/DC转换器(3 converters, 1 controller)可并行提供3 x 1.5A和10A电流至处理器、外部内存、无线通信(WLAN和蓝牙)、GPS、FM接收器以及调制解调器所使用。因此可充分满足智能型手机、平板计算机和嵌入式系统等广泛的设计需求。
HE71001内部配置有9个低压差线性稳压器(LDO)、9个通用输入/输出埠(GPIO),和4个DC/DC转换器。透过I2C接口可对任何电源开启顺序、输出电压和动态电压控制(DVC)加以编程,提供设计人员最有效降低系统功耗的机会。例如相关应用可被完全断电,再透过HE71001的监测功能重新启动。此外,进一步透过动态电压调整(DVS)的功能可高效提升电池的使用寿命,这是分离式电源方案所无法提供的优势。
HE71001的 DC/DC转换器可自动判别并切换多种模式,最高可操作于3MHz开关频率,运用小于1.0uH的电感,并维持高峰值电流。
HE71001的供电范围介于2.7V至5.5V之间,适用于单颗锂电池、标准5V电源或USB电源在行动装置及非行动装置系统上的应用。操作温度介于-40至+85°C之间,采用8 x 8mm QFN封装,提供经济且弹性的PCB设计需求,目前已正式导入系统设计并量产。
[产品特色]
• 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
[产品包装]

[产品规格]

[产品数据]
Datasheet, Sample, Application Circuit.
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