- 积分
- 27
- 下载分
- 分
- 威望
- 点
- 原创币
- 点
- 下载
- 次
- 上传
- 次
- 注册时间
- 2006-11-27
- 精华
|
4#
发表于 2011-4-20 22:56:20
|
只看该作者
来自: 广西南宁 来自 广西南宁
ADP3168应该能代ADP3181吧?从资料上看主要就是第6脚有区别了.
ADP3168:
1 to 6 VID4 to VID0, VID5 :Voltage Identification DAC Inputs. These six pins are pulled up to an internal reference, providing
a Logic 1 if left open. When in normal operation mode, the DAC output programs the FB regulation
voltage from 0.8375 V to 1.6 V. Leaving VID4 through VID0 open results in the ADP3168 going into
a no CPU mode, shutting off its PWM outputs.
ADP3181:
1 to 5 VID4 to VID0 : Voltage Identification DAC Inputs. These five pins are pulled up to an internal reference, providing a Logic 1
if left open. When in normal operation mode, the DAC output programs the FB regulation voltage based
on the condition of the CPUID pin (see Table 4 and Table 5). Leaving VID4 through VID0 open results in
ADP3181 going into a no CPU mode, shutting off its PWM outputs.
6 CPUID: CPU DAC Code Selection Input. When this pin is pulled > 4.25 V, the internal DAC reads its inputs based
on the VRM 9 VID table (see Table 4). When this pin is <4 V, the DAC reads its inputs based on the VRD
10 VID table (see Table 5) and treats CPUID as the VID5 input. (ADP3181JRQ, VRD10 only)
|
|