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参数资料
| 型号： | PC13892AJVK |
| 厂商： | FREESCALE SEMICONDUCTOR INC |
| 元件分类： | 电源管理 |
| 英文描述： | 1-CHANNEL POWER SUPPLY MANAGEMENT CKT, PBGA139 |
| 封装： | 7 X 7 MM, 0.50 MM PITCH, ROHS COMPLIANT, PLASTIC, MO-195AD, MABGA-139 |
| 文件页数： | 54/67页 |
| 文件大小： | 2571K |
| 代理商： | PC13892AJVK |
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Analog Integrated Circuit Device Data
58
Freescale Semiconductor
13892
FUNCTIONAL DEVICE OPERATION
Because of an order from the United States International Trade Commission, BGA-packaged product lines and part numbers indicated here currently are not
available from Freescale for import or sale in the United States prior to September 2010: MC13892*VK and MC13892*VL in 139, 186 MAPBGA packages.
POWER CONTROL LOGIC
(STATE MACHINE)
The power control system interfaces with the processor via
different IO signals and the SPI bus. It also uses on chip
signals and detector outputs.
Figure 13 shows the flow of the power control state
machine. This diagram serves as the basis for the description
Cold
Start
Watchdog
On
Start Up Modes
Application of Power
before PCUT Timer
PCT[7:0] expiration
(PCEN=1 and
PCMAXCNT not
exceeded)
Reset Timer
Expired
Reset Timer
Expired
Watchdog
Timer Expired
Turn On Event
(Warm Start)
Turn On Event
(Warm Boot)
Processor Request
for User Off:
USEROFFSPI=1
Warm Start
Enabled
WARMEN=1
Warm Start
Not
Enabled
WDI Low,
WDIRESET=0
PCUT Timer
PCT[7:0]
Expired
PCUTEXPB
cleared to 0
Internal
MemHold
Power Cut
WARMEN=0
User
Off
Memory
Hold
From Any Mode: Loss of
Power with Power Cuts
enabled (PCEN=1) and
PCMAXCNT not exceeded
WDI Low,
WDIRESET=1 and
PCMAXCNT not
exceeded
WDI Low,
WDIRESET=1
and
PCMAXCNT is
exceeded
User Off
Wait
PCT[7:0] Expired
Low Power
Off Modes
From Any Mode: Loss of Power with PCEN=0,
Thermal Protection Trip, or System Reset
Turn On Event
Unqual’d
Turn On
Off
Legend and Notes (refer to text for additional details)
Blue Box = Steady State, no specific timer is running
Green Circle = Transitional State, a specific timer is running, see text
Dashed Boxes = Grouping of Modes for clarification
WDI has influence only in the ‘On’ state
Complete loss of BP and coin cell power is not represented in state machine
Unqual’d
Turn On
Warm
Start
Figure 13. Power Control Logic (State Machine)
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相关代理商/技术参数 |
参数描述 |
|---|---|
| PC13892AJVKR2 | 制造商:Freescale Semiconductor 功能描述:POWER MGMT IC - Tape and Reel |
| PC13892AJVL | 制造商:Freescale Semiconductor 功能描述:5/28V BCK/BST PMUIC - Bulk |
| PC13892AJVLR2 | 制造商:Freescale Semiconductor 功能描述:5/28V BCK/BST PMUIC - Tape and Reel |
| PC13892BJVL | 制造商:Freescale Semiconductor 功能描述:5/28V BCK/BST PMUIC - Trays |
| PC13892JVK | 制造商:Freescale Semiconductor 功能描述:POWER MGMT IC - Bulk |
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