- 您现在的位置：买卖IC网 > PDF目录69042 > PC34708VMR2 (FREESCALE SEMICONDUCTOR INC) 1-CHANNEL POWER SUPPLY MANAGEMENT CKT, PBGA206 PDF资料下载
参数资料
| 型号： | PC34708VMR2 |
| 厂商： | FREESCALE SEMICONDUCTOR INC |
| 元件分类： | 电源管理 |
| 英文描述： | 1-CHANNEL POWER SUPPLY MANAGEMENT CKT, PBGA206 |
| 封装： | 13 X 13 MM, 0.80 MM PITCH, LEAD FREE, MO-275HHAC-1, MAPBGA-206 |
| 文件页数： | 142/200页 |
| 文件大小： | 5160K |
| 代理商： | PC34708VMR2 |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页第35页第36页第37页第38页第39页第40页第41页第42页第43页第44页第45页第46页第47页第48页第49页第50页第51页第52页第53页第54页第55页第56页第57页第58页第59页第60页第61页第62页第63页第64页第65页第66页第67页第68页第69页第70页第71页第72页第73页第74页第75页第76页第77页第78页第79页第80页第81页第82页第83页第84页第85页第86页第87页第88页第89页第90页第91页第92页第93页第94页第95页第96页第97页第98页第99页第100页第101页第102页第103页第104页第105页第106页第107页第108页第109页第110页第111页第112页第113页第114页第115页第116页第117页第118页第119页第120页第121页第122页第123页第124页第125页第126页第127页第128页第129页第130页第131页第132页第133页第134页第135页第136页第137页第138页第139页第140页第141页当前第142页第143页第144页第145页第146页第147页第148页第149页第150页第151页第152页第153页第154页第155页第156页第157页第158页第159页第160页第161页第162页第163页第164页第165页第166页第167页第168页第169页第170页第171页第172页第173页第174页第175页第176页第177页第178页第179页第180页第181页第182页第183页第184页第185页第186页第187页第188页第189页第190页第191页第192页第193页第194页第195页第196页第197页第198页第199页第200页
Analog Integrated Circuit Device Data
Freescale Semiconductor
46
PC34708
Functional Block Requirements and Behaviors
Power Control Logic Block Description and Application Information
The following are text descriptions of the power states of the system for additional details of the state machine to complement
the drawing in Figure 8. Note that the SPI control is only possible in the Watchdog, On and User Off Wait states and that the
interrupt line INT is kept low in all states except for watchdog and on.
7.2.1
Operating Modes
7.2.1.1
Coin Cell
The RTC module is powered from the (either the battery or the coincell) due to insufficient voltage at VALWAYS and the IC is
not in a Power Cut. No Turn On event is accepted in the Coin Cell state. Transition out (to the Off state) requires VALWAYS
restoration with a threshold above UVDET. RESETB and RESETBMCU are held low in this mode.
The RTC module remains active (32 kHz oscillator + RTC timers), along with VALWAYS level detection to qualify exit to the Off
state. VCOREDIG is off and the VDDLP regulator is on, the rest of the system is put into its lowest power configuration.
If the coin cell is depleted (VSTRC drops to 0.9 V-0.8 V while in the Coin Cell state), a complete system reset will occur. At next
power application / Turn On event, the system will startup reinitialized with all SPI bits including those that reset on RTCPORB
restored to their default states.
7.2.1.2
Off (with good battery)
If the supply VALWAYS is above the UVDET threshold, only the IC core circuitry at VCOREDIG and the RTC module are
powered, all other supplies are inactive. To exit the Off mode, a valid turn on event is required. No specific timer is running in this
mode. RESETB, RESETBMCU are held low in this mode.
If the supply VALWAYS is below the UVDET threshold, no turn on events are accepted. If a valid coin cell is present, the core
gets powered from LICELL. The only active circuitry is the RTC module and the detection VCORE module powering VCOREDIG
at 1.5 V.
If there is a USB supply or Charger inserted, the IC circuitry at VCORE, VCOREDIG, and the RTC Module will be powered up.
To exit the OFF mode, a valid turn ON event is required.
7.2.1.3
Cold Start
Cold Start is entered upon a Turn On event from Off, Warm Boot, successful PCUT, or a Silent System Restart. The first 8.0 ms
is used for initialization which includes bias generation, PUMSx configuration latching, and qualification of the input supply level
BP. The switchers and regulators are then powered up sequentially to limit the inrush current; see the Power Up section for
sequencing and default level details. The reset signals RESETB and RESETBMCU are kept low. The Reset timer starts running
when entering Cold Start. The Cold Start state is exited for the Watchdog state and both RESETB and RESETBMCU become
high (open drain output with external pull-ups) when the reset timer is expired. The input control pins WDI, and STANDBY are
ignored.
7.2.1.4
Watchdog
The system is fully powered and under SPI control. RESETB and RESETBMCU are high. The Watchdog timer starts running
when entering the Watchdog state. When expired, the system transitions to the On state, where WDI will be checked and
monitored. The input control pins WDI and STANDBY are ignored while in the Watchdog state.
7.2.1.5
On
The system is fully powered and under SPI control. RESETB and RESETBMCU are high. The WDI pin must be high to stay in
this mode. The WDI IO supply voltage is referenced to SPIVCC (normally connected to SW5 = 1.8 V); SPIVCC must therefore
remain enabled to allow for proper WDI detection. If WDI goes low, the system will transition to the Off state or Cold Start
(depending on the configuration; refer to the section on Silent System Restart with WDI Event for details).
相关PDF资料 |
PDF描述 |
|---|---|
| PC34708VM | 1-CHANNEL POWER SUPPLY MANAGEMENT CKT, PBGA206 |
| PC34708VK | 1-CHANNEL POWER SUPPLY MANAGEMENT CKT, PBGA206 |
| PCF1252-6T | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8 |
| PCF1252-8T-T | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8 |
| PCF1252-4T-T | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| PC34709VK | 制造商:Freescale Semiconductor 功能描述:PMIC 5SW,6 LDO,BST - Bulk |
| PC34709VKR2 | 制造商:Freescale Semiconductor 功能描述:PMIC 5SW,6 LDO,BST - Tape and Reel |
| PC34710EW | 制造商:MOTOROLA 制造商全称:Motorola, Inc 功能描述:Adjustable Dual Output Switching Power Supply |
| PC34710EWR2 | 制造商:MOTOROLA 制造商全称:Motorola, Inc 功能描述:Adjustable Dual Output Switching Power Supply |
| PC3-48-12 | 功能描述:DC/DC转换器 3W 12V 0.25A RoHS:否 制造商:Murata 产品: 输出功率: 输入电压范围:3.6 V to 5.5 V 输入电压（标称）: 输出端数量:1 输出电压（通道 1）:3.3 V 输出电流（通道 1）:600 mA 输出电压（通道 2）: 输出电流（通道 2）: 安装风格:SMD/SMT 封装 / 箱体尺寸: |
发布紧急采购，3分钟左右您将得到回复。