参数资料
型号: MC34708VM
厂商: Freescale Semiconductor
文件页数: 48/159页
文件大小: 0K
描述: IC POWER MANAGEMENT 206MAPBGA
标准包装: 160
应用: 通用
电源电压: 1.8 V ~ 4.5 V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 206-LFBGA
供应商设备封装: 206-MAPBGA(13x13)
包装: 托盘
Functional Block Description
BP
C INSW1A
SW1IN
I SENSE
SW1AMODE
SW1
L SW1A
C OSW1A
SW1ALX
D SW1A
Driver
Controller
SW1FAULT
GNDSW1A
Internal
Compensation
Z2
SPI
SW1FB
Z1
EA
DAC
V REF
SPI
Interface
BP
C INSW1B
SW1BIN
I SENSE
SW1BMODE
L SW 1B
C OSW 1B
SW1BLX
D SW1B
Driver
Controller
SW1BFAULT
GNDSW1B
SW1CFG
Figure 9. SW1 Dual Phase Output Mode Block Diagram
The peak current is sensed internally for over-current protection purposes. If an over-current condition is detected the regulator
will limit the current through cycle by cycle operation and alert the system through the SW1FAULT SPI bit and issue an SCPI
interrupt via the INT pin.
SW1A/B output voltage is SPI configurable in step sizes of 12.5 mV as shown in the table below. The SPI bits SW1A[5:0] set the
output voltage for both SW1A and SW1B.
Table 37. SW1A/B Output Voltage Programmability
Set Point SW1A[5:0]
SW1A/B
Output (V)
Set Point SW1A[5:0]
SW1A/B
Output (V)
0
1
2
3
4
5
6
7
8
9
10
11
12
000000
000001
000010
000011
000100
000101
000110
000111
001000
001001
001010
001011
001100
0.6500
0.6625
0.6750
0.6875
0.7000
0.7125
0.7250
0.7375
0.7500
0.7625
0.7750
0.7875
0.8000
32
33
34
35
36
37
38
39
40
41
42
43
44
100000
100001
100010
100011
100100
100101
100110
100111
101000
101001
101010
101011
101100
1.0500
1.0625
1.0750
1.0875
1.1000
1.1125
1.1250
1.1375
1.1500
1.1625
1.1750
1.1875
1.2000
MC34708
Analog Integrated Circuit Device Data ?
Freescale Semiconductor
48
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