参数资料
型号: KIT13892VLEVBEJ
厂商: Freescale Semiconductor
文件页数: 75/158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:
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
FUNCTIONAL DEVICE OPERATION
SUPPLIES
Table 47. Buck Regulators (SW1, 2, 3, 4) Output Voltage Programmability
Set point
28
29
30
31
SWx[4:0]
11100
11101
11110
11111
SWx Output, SWxHI = 0 (Volts)
1.300
1.325
1.350
1.375
SWx Output (71) , SWxHI = 1 (Volts)
1.800
1.825
1.850
1.850
71.
Output range not available for SW1. SW1 output range is 0.600-1.375, therefore SW1HI = 1 does not apply to SW1. The SW1HI bit
should always be set to 0.
Since the startup default values of the buck regulators are dependent on the state of the PUMS pin, the SWxHI bit settings will
likewise be determined by the PUMS pin. The settings are aligned to the likely application ranges for use cases as given in the
Defaults tables in Power Control System . The following tables define the SWxHI bit states after a startup event is completed, but
can be reconfigured via the SPI if desired, if an alternate range is needed. Care should be taken when changing SWxHI bit to
avoid unintended jumps in the switcher output. The SWxHI setting applies to Normal, Standby, and DVS set points for the
corresponding switcher.
Table 48. SWxHI States for Power Up Defaults
PUMS1
PUMS2
SW1HI
SW2HI
SW3HI
SW4HI
Ground
Open
0
0
0
1
Open
Open
0
0
0
1
VCOREDIG
Open
0
0
0
1
VCORE
Open
0
0
0
1
Ground
Ground
0
1
1
1
Open
Ground
0
1
1
1
Note that the following efficiency curves were measured with the MC13892 in a socket.
MC13892
Analog Integrated Circuit Device Data
Freescale Semiconductor
75
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