参数资料
型号: KIT13892VLEVBEJ
厂商: Freescale Semiconductor
文件页数: 63/158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
OPERATING MODES
Table 26. Power Up Defaults Table
i.MX
PUMS1
PUMS2
37/51
GND
Open
37/51
Open
Open
37/51
VCOREDIG
Open
37/51
VCORE
Open
35
GND
GND
27/31
Open
GND
SW1
0.775
1.050
1.050
0.775
1.200
1.200
SW2 (49)
SW3 (49)
SW4 (49)
SWBST
VUSB
VUSB2
VPLL
VDIG
VIOHI
VGEN2
VSD
1.025
1.200
1.800
Off
3.300 (50)
2.600
1.800
1.250
2.775
3.150
Off
1.225
1.200
1.800
Off
3.300 (50)
2.600
1.800
1.250
2.775
Off
Off
1.225
1.200
1.800
Off
3.300 (50)
2.600
1.800
1.250
2.775
3.150
Off
1.025
1.200
1.800
Off
3.300 (50)
2.600
1.800
1.250
2.775
Off
Off
1.350
1.800
1.800
5.000
3.300 (52)
2.600
1.500
1.250
2.775
3.150
3.150
1.450
1.800
1.800
5.000
3.300 (52)
2.600
1.500
1.250
2.775
3.150
3.150
Notes
49. The switchers SWx are activated in PWM pulse skipping mode, but allowed when enabled by the startup sequencer.
50. USB supply VUSB, is only enabled if 5.0 V is present on UVBUS.
51. The following supplies are not included in the matrix since they are not intended for activation by the startup sequencer: VCAM, VGEN1,
VGEN3, VVIDEO, and VAUDIO
52. SWBST = 5.0 V powers up and does VUSB regardless of 5.0 V present on UVBUS. By default VUSB will be supplied by SWBST.
The power up sequence is shown in Table 27 . VCOREDIG, VSRTC, and VCORE are brought up in the pre-sequencer startup.
Once VCOREDIG is activated (i.e., at the first-time power application), it will be continuously powered as long as a valid coin cell
is present.
Table 27. Power Up Sequence
Tap x 2ms
0
1
2
3
4
5
6
7
8
9
PUMS2 = Open (i.MX37, i.MX51)
SW2
SW4
VIOHI
VGEN2
SW1
SW3
VPLL
VDIG
-
VUSB (55) , VUSB2
PUMS2 = GND (i.MX35, i.MX27)
SW2
VGEN2
SW4
VIOHI, VSD
SWBST, VUSB (56)
SW1
VPLL
SW3
VDIG
VUSB2
Notes
53. Time slots may be included for blocks which are defined by the PUMS pin as disabled to allow for potential activation.
54. The following supplies are not included in the matrix since they are not intended for activation by the startup sequencer: VCAM,
VGEN1, VGEN3, VVIDEO, and VAUDIO. SWBST is not included on the PUMS2 = Open column.
55. USB supply VUSB, is only enabled if 5.0 V is present on UVBUS.
56. SWBST = 5.0 V powers up and so does VUSB regardless of 5.0 V present on UVBUS. By default VUSB will be supplied by SWBST.
MC13892
Analog Integrated Circuit Device Data
Freescale Semiconductor
63
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