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[原创] NXP PF4210用于i.MX 8MMCU的14路功率管理方案

关键词:电源管理 PMIC PF4210

时间:2018-10-26 10:49:46       作者:NXP       来源:中电网

NXP公司的PF4210是14路功率管理集成电路(PMIC),具有全集成的功率器件和最少外接元件的高度可编程/可配置架构,有多达6个降压转换器,6个线性稳压器和RTC电源和一个扣式电池充电器,为应用处理器,存储器,系统外设等在各种应用提供完整的电源系统.输入电压2.8 V-4.5 V,采用OTP作为器件配置,主要用在OTT STB,无线音频,语音识别辅助,条形音箱,A/V接收机以及通用嵌入式.本文介绍了PF4210主要特性和优势,框图和应用框图,以及评估板KITPF4210EPEVB主要特性和电路图.

14-channel Power Management Integrated Circuit (PMIC) for audio/video applications The PF4210 high performance power management integrated circuit (PMIC) provides a highly programmable/configurable architecture with fully integrated power devices and minimal external components. With up to six buck converters, six linear regulators,an RTC supply, and a coin cell charger, the PF4210 can provide power for a complete system, including applications processors, memory, and system peripherals, in a wide range of applications.

With on-chip one-time programmable (OTP) memory, the PF4210 is available in preprogrammed standard version or nonprogrammed to support custom programming.The PF4210 is defined to power low-cost audio/video applications using the i.MX 8M family of applications processors.

PF4210主要特性和优势:

• Four to six buck converters, depending on configuration
– Single/dual phase/parallel options
– DDR termination tracking mode option
• Boost regulator to 5.0 V output
• Six general purpose linear regulators
• Programmable output voltage, sequence, and timing
• OTP (one-time programmable) memory for device configuration
• Coin cell charger and RTC supply
• DDR termination reference voltage
• Power control logic with processor interface and event detection
• I2C control
• Individually programmable on, off, and standby modes
This section summarizes the PF4210 features
• Input voltage range to PMIC: 2.8 V to 4.5 V
• Buck regulators
– Four to six channel configurable
– SW1A/B/C, 4.5 A (single); 0.3 V to 1.875 V
– SW1A/B, 2.5 A (single/dual); SW1C 2.0 A (independent); 0.3 V to 1.875 V
– SW2, 2.5 A; 0.4 V to 3.3 V
– SW3A/B, 3.0 A (single/dual); 0.4 V to 3.3 V
– SW3A, 1.5 A (independent); SW3B, 1.5 A (independent); 0.4 V to 3.3 V
– SW4, 1.0 A; 0.4 V to 3.3 V
– SW4, VTT mode provide DDR termination at 50 % of SW3A
– Dynamic voltage scaling
– Modes: PWM, PFM, APS
– Programmable output voltage
– Programmable current limit
– Programmable soft start
– Programmable PWM switching frequency
– Programmable OCP with fault interrupt
• Boost regulator
– SWBST, 5.0 V to 5.15 V, 0.6 A, OTG support
– Modes: PFM and auto
– OCP fault interrupt
• LDOs
– Six user-programmable LDOs
– VGEN1, 0.80 V to 1.55 V, 100 mA
– VGEN2, 0.80 V to 1.55 V, 250 mA
– VGEN3, 1.8 V to 3.3 V, 100 mA
– VGEN4, 1.8 V to 3.3 V, 350 mA
– VGEN5, 1.8 V to 3.3 V, 100 mA
– VGEN6, 1.8 V to 3.3 V, 200 mA
• Soft start
• LDO/switch supply
– VSNVS (1.0/1.1/1.2/1.3/1.5/1.8/3.0 V), 1.5 mA (consumer version), 1.0 mA (industrial version)
• DDR memory reference voltage
– VREFDDR, 0.6 V to 0.9 V, 10 mA
• 16 MHz internal master clock
• OTP (one time programmable) memory for device configuration
– User programmable start-up sequence and timing
• Battery backed memory including coin cell charger
• I2C interface
• User programmable standby, sleep, and off modes

PF4210应用:

• OTT STB
• Wireless audio
• Voice recognition assistant
• A/V receivers
• Sound bars
• General embedded

图1.PF4210简化内部框图

图2.PF4210内部功能框图

图3.PF4210简化应用框图

图4.PF4210典型应用电路图

评估板KITPF4210EPEVB

The KITPF4210EPEVB is an easy to use evaluation board for the PF4210 Power Management IC optimized for i.MX 8M. It operates with a single power supply from 3.1V to 4.5V and is controlled via USB with help of an integrated USB-I2C communication bridge.

By applying the input voltage supply, the KITPF4210EPEVB powers up according to the default power-up sequence described in the PF4210 data sheet.

评估板KITPF4210EPEVB主要特性:

Input voltage operation range from 3.1 V to 4.5 V
Output voltage supplies accessible through detachable terminal blocks
Four to six independent buck converters
One 5.0 V boost regulator
Six general purpose LDO regulators
One DDR memory termination voltage reference
One VSRTC supply
Coin cell support for “Try-Before-Buy”(TBB) mode
On/off push button support<
Hardware configuration flexibility through various jumper headers and resistors
Integrated USB to I2C programming interface for full control/configuration
Onboard PMIC control through the I2C register map
Fully featured programmer through J36 for external device control/programming
Onboard connectors for interfacing with future evaluation/debug tools
Compact form factor (4 x 4 in2)
Evaluation board- PF4210, Power Management IC for i.MX 8M

图5.评估板KITPF4210EPEVB外形图

图6.评估板KITPF4210EPEVB输入/输出端框图

图7.评估板KITPF4210EPEVB电路图(1)

图8.评估板KITPF4210EPEVB电路图(2)

图9.评估板KITPF4210EPEVB电路图(3)
详情请见:
https://www.nxp.com/docs/en/data-sheet/PF4210.pdf
https://www.nxp.com/docs/en/user-guide/KTPF4210EPEVBUG.pdf
以及https://www.nxp.com/downloads/en/schematics/SPF-29826.pdf
PF4210.pdf
KTPF4210EPEVBUG.pdf
SPF-29826.pdf

 

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