ACT8846 ACT8846QM460 ACT8846QM460-T

封裝：TQFN66-48

最小包裝：3000/盤

年份：14+

雙核四核電源管理芯片 ACTIVE-SEMI技領(lǐng)

ACT8846是美國技領(lǐng)半導(dǎo)體（active-semi）推出的一款性能優(yōu)異的

電源管理芯片， RK3066/RK3188方案上有采用此顆ic。該芯片集成

了多個(gè)電源功能芯片（如：DC/DC壓降穩(wěn)壓芯片、低壓差線性穩(wěn)壓器等）

它支持所有I2C系列端口，具有多種睡眠模式、軟/硬重啟功能及熱保護(hù)等

GPIO3,4,5和6可以輸出pwm波形驅(qū)動(dòng)led，每個(gè)管腳可以輸出6mA電流。

PWM輸出頻率有I2C的寄存器控制。對(duì)應(yīng)關(guān)系如下：

ACT8846是一個(gè)成本低和高效率的PMU TM電源管理解決方案上使用的。

應(yīng)用于RK3066瑞芯微方案

RK3188+ACT8846QM460-T ROCKCHIP瑞芯微 四核CPU處理器套片

Features  

INTEGRATED POWER SUPPLIES

1.   Four DC/DC Step-Down (Buck) Regulators : 2 x 2.8A, 2 x 1.5A

2.   Five Low-Noise LDOs : 2 x 150mA, 3 x 350mA

3.   Three Low-Input Voltage LDOs : 1 x 150mA, 2 x 350mA

4.   One Low IQ Keep-Alive LDO

5.   Backup Battery Charger

SYSTEM CONTROL AND INTERFACE

1.   Four General Purpose I/O with PWM Drivers

2.   I2C Serial Interface

3.   Interrupt Controller

SYSTEM MANAGEMENT

1.   Reset Interface and Sequencing Controller

     - Power on Reset

     - Soft / Hard Reset

     - Watchdog Supervision

     - Multiple Sleep Modes

2.   Thermal Management Subsystem

INTEGRATED POWER SUPPLIES

Four DC/DC Step-Down (Buck) Regulators

2 x 2.8A, 2 x 1.5A

Five Low-Noise LDOs

2 x 150mA, 3 x 350mA

Three Low-Input Voltage LDOs

1 x 150mA, 2 x 350mA

One Low IQ Keep-Alive LDO

Backup Battery Charger

SYSTEM CONTROL AND  INTERFACE

Four General Purpose I/O with PWM Drivers

2

C Serial Interface

 Interrupt Controller

SYSTEM MANAGEMENT

 Reset Interface and Sequencing Controller  

 Power on Reset

 Soft / Hard Reset

 Watchdog Supervision

 Multiple Sleep Modes

 Thermal Management Subsystem