参数资料
| 型号： | KIT13892VLEVBEJ |
| 厂商： | Freescale Semiconductor |
| 文件页数： | 80/158页 |
| 文件大小： | 0K |
| 描述： | KIT EVAL FOR MC13892 |
| 标准包装： | 1 |
| 主要目的： | 电源管理和用户界面 |
| 嵌入式： | 否 |
| 已用 IC / 零件： | MC13892 |
| 主要属性： | 10 位 ADC，4 输出降压转换器，12 LDO |
| 次要属性： | 与 i.MX51、i.MX37、i.MX35、i.MX27 一起使用 |
| 已供物品： | 板，线缆，文档 |
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页当前第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
FUNCTIONAL DEVICE OPERATION
SUPPLIES
stepping. If a switcher runs out of programmable range (in either direction), as constrained by programmable stops, then the
increment or decrement command shall be ignored.
The Switcher Increment / Decrement (SID) function is enabled with SIDEN = 1. This will reassign the function of the DVS1 and
DVS2 pins, from the default toggling between Normal and DVS operating modes, to a jog control mode for the switcher which
DVSx is assigned. Once enabled, the switcher being controlled will start at the Normal mode set point as programmed with
SWx[4:0] and await any jog commands from the processor. The adjustment scheme essentially intercepts the Normal mode set
point SPI bits (i.e., but not DVS or Standby programmed set points), and makes any necessary adjustments based on jog up or
jog down commands. The modified set point bits are then immediately passed to the switching regulator, which would then do a
DVS step in the appropriate direction. The SPI bits containing Normal mode programming are not directly altered.
When configured for SID mode, a high pulse on the DVSx pin will indicate one of 3 actions to take, with the decoding as a
function of how many contiguous SPI clock falling edges are seen while the DVSx pin is held high.
Table 51. SID Control Protocol
Number of SPI CLK Falling
Edges while DVSx = 1
0
1
2
3 or more
Function
No action. Switcher stays at its presently programmed configuration
Jog down. Drive buck regulator output down a single DVS step
Jog up. Drive buck regulator output up a single DVS step
Panic Mode. DVS step the buck regulator output to the Normal mode value as programmed in the SPI register
The SID protocol is illustrated by way of example, assuming SIDEN = 1, and that DVS1 is controlling SW1. SW1 starts out at
its default value of 1.250 V (SW1 = 11010) and is stepped both up and down via the DVS1 pin. The SPI bits SW1 = 11010 do
not change. The set point adjustment takes place in the SID block prior to bit delivery to the switcher's digital control.
SW1 output
Starting Value
1.250
DVS
Up
1.275
DVS
Down
1.250
DVS
Down
1.225
DVS1
Up
Down
Down
SPICLK
1
2
1
1
SPICLK shut down
when not used
Figure 21. SID Control Example for Increment & Decrement
SID Panic Mode is provided for rapid recovery to the programmed Normal mode output voltage, so the processor can quickly
recover to its high performance capability with a minimum of communication latency. In Figure 22 , Panic Mode recovery is
illustrated as an Increment step, initiated by the detection of the second falling SPI clock edge, followed by a continuation to the
programmed SW1[4:0] level (1.250 V in this example), due to the detection of the third contiguous falling edge of SPI clock while
DVS1 is held high.
MC13892
Analog Integrated Circuit Device Data
80
Freescale Semiconductor
相关PDF资料 |
PDF描述 |
|---|---|
| KIT17C724EPEVBE | KIT FOR 17C7242CH HBRIDGE PWR IC |
| KIT33810EKEVME | BOARD EVAL FOR MC33810 |
| KIT33811EGEVBE | KIT EVAL 33811 SOLENOID MON IC |
| KIT33812ECUEVME | KIT DESIGN FOR 33812/S12P |
| KIT33812EKEVBE | BOARD EVALUATION FOR MC33812 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| KIT-1395 | 制造商:Anderson Power Products (APP) 功能描述:KIT |
| Kit-1395G1 | 制造商:ANDERSON POWER PRODUCTS 功能描述:KIT |
| Kit-1395G10 | 制造商:ANDERSON POWER PRODUCTS 功能描述:KIT |
| Kit-1395G2 | 制造商:ANDERSON POWER PRODUCTS 功能描述:KIT |
| Kit-1395G3 | 制造商:ANDERSON POWER PRODUCTS 功能描述:KIT |
发布紧急采购，3分钟左右您将得到回复。