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| 型号： | EM6617SO28A |
| 英文描述： | Advanced Synchronous Rectified Buck MOSFET Drivers with Pre-POR OVP; Temperature Range: 0°C to 70°C; Package: 8-EPSOIC T&R |
| 中文描述： | 微控制器 |
| 文件页数： | 45/67页 |
| 文件大小： | 824K |
| 代理商： | EM6617SO28A |
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EM6617
03/02 REV. C/442
Copyright
2002, EM Microelectronic-Marin SA
5
www.emmicroelectronic.com
2. Typical configurations
Full range ADC : Vref = VDD, Vgnd = VDD/2.
For power saving one might connect the Vgnd resistor divider chain onto a port B output. This output should be
driving VDD during the conversion and driving VSS or high impedance in the ADC off state.
Limited range ADC : VDD > Vref > Vgnd, Vgnd=VDD/2.
For power saving one might connect the Vgnd and the Vref resistor divider chain onto a port B output to VSS.
This output should be driving VDD during the conversion and driving Vss or high impedance in the ADC off state.
other possibility: VREF = VregLogic, VGND = VregLogic/2
For power saving one might connect the Vgnd resistor divider chain from VregLogic onto a port B output. This
output should be driving VSS during the conversion and driving ‘high impedance’ in the ADC off state.
Figure 3. Typical Application, Full Range
Main power
≈
Vreg VSS
Vss
R1
Vss
Ain
Bin
Port C
Port B
Strobe
Reset
Port A
Vref
Vgnd
VDD
VDD, or port driven
VDD
32 KHz
>1.3V
VDD
Vss
Vgnd
+
-
Full
range
ADC
Figure 4. Typical Application, Limited Range
Main power
≈
Vreg Vss
Vss or Vgnd
>1.3V
Vdd or Port B driven
R1
C1
R1
Vss
Ain
Bin
Vref
Vgnd
VDD
32 KHz
limited
range
ADC
Vref
Vgnd
+
-
Vdd
Vss
+| Vref - Vgnd |
-| Vref - Vgnd |
Port C
Port B
Strobe
Reset
Port A
相关PDF资料 |
PDF描述 |
|---|---|
| EM6617SO28B | Advanced Synchronous Rectified Buck MOSFET Drivers with Pre-POR OVP; Temperature Range: -40°C to 85°C; Package: 8-EPSOIC T&R |
| EM6617TP28A | Advanced Synchronous Rectified Buck MOSFET Drivers with Pre-POR OVP; Temperature Range: 0°C to 70°C; Package: 8-EPSOIC T&R |
| EM6617TP28B | Advanced Synchronous Rectified Buck MOSFET Drivers with Pre-POR OVP; Temperature Range: -40°C to 85°C; Package: 8-EPSOIC T&R |
| EM6640SO18A | Advanced Synchronous Rectified Buck MOSFET Drivers with Pre-POR OVP; Temperature Range: -40°C to 85°C; Package: 8-SOIC |
| EM6640SO18B | Advanced Synchronous Rectified Buck MOSFET Drivers with Pre-POR OVP; Temperature Range: -40°C to 85°C; Package: 10-DFN |
相关代理商/技术参数 |
参数描述 |
|---|---|
| EM6617SO28B | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Microcontroller |
| EM6617TP28A | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Microcontroller |
| EM6617TP28B | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Microcontroller |
| EM6617WP11 | 制造商:EMMICRO 制造商全称:EM Microelectronic - MARIN SA 功能描述:Ultra Low Power Microcontroller with ADC AND EEPROM |
| EM6617WP27 | 制造商:EMMICRO 制造商全称:EM Microelectronic - MARIN SA 功能描述:Ultra Low Power Microcontroller with ADC AND EEPROM |
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