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| 型号： | MCP40D19T-503E/LT |
| 厂商： | Microchip Technology |
| 文件页数： | 1/43页 |
| 文件大小： | 0K |
| 描述： | IC DGTL POT 50K 128TAPS SC70-5 |
| 标准包装： | 1 |
| 接片： | 128 |
| 电阻（欧姆）： | 50k |
| 电路数： | 1 |
| 温度系数： | 标准值 150 ppm/°C |
| 存储器类型： | 易失 |
| 接口： | I²C |
| 电源电压： | 1.8 V ~ 5.5 V |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 6-TSSOP（5 引线），SC-88A，SOT-353 |
| 供应商设备封装： | SC-70-5 |
| 包装： | 标准包装 |
| 产品目录页面： | 674 (CN2011-ZH PDF) |
| 其它名称： | MCP40D19T-503E/LTDKR |
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2009 Microchip Technology Inc.
DS22152B-page 1
MCP40D17/18/19
Features
Potentiometer or Rheostat configuration options
7-bit: Resistor Network Resolution
-
127 Resistors (128 Steps)
Zero Scale to Full Scale Wiper operation
RAB Resistances: 5 kΩ, 10 kΩ, 50 kΩ, or 100 kΩ
Low Wiper Resistance: 100
Ω (typical)
Low Tempco:
- Absolute (Rheostat): 50 ppm typical
(0°C to 70°C)
- Ratiometric (Potentiometer): 15 ppm typical
I2C Protocol
- Supports SMBus 2.0 Write Byte/Word
Protocol Formats
- Supports SMBus 2.0 Read Byte/Word
Protocol Formats
Standard I2C Device Addresses:
- All devices offered with address “0101110”
- MCP40D18 also offered with address
“0111110”
Brown-out reset protection (1.5V typical)
Power-on Default Wiper Setting (Mid-scale)
Low-Power Operation:
- 2.5 A Static Current (typical)
Wide Operating Voltage Range:
- 2.7V to 5.5V - Device Characteristics
Specified
- 1.8V to 5.5V - Device Operation
Wide Bandwidth (-3 dB) Operation:
- 2 MHz (typical) for 5.0 k
Ω device
Extended temperature range (-40°C to +125°C)
Very small package (SC70)
Lead free (Pb-free) package
Package Types
Applications
PC Servers (I2C Protocol with Command Code)
Amplifier Gain Control and Offset Adjustment
Sensor Calibration (Pressure, Temperature,
Position, Optical and Chemical)
Set point or offset trimming
Cost-sensitive mechanical trim pot replacement
RF Amplifier Biasing
LCD Brightnes and Contract Adjustment
Device Features
MCP40D18
SC70-6
MCP40D19
SC70-5
Rheostat
4
1
2
3
5 W
SDA
VDD
VSS
SCL
4
1
2
3
6 A
SDA
VDD
VSS
SCL
5 W
A
W
A
B
Potentiometer
MCP40D17
SC70-6
4
1
2
3
6 W
SDA
VDD
VSS
SCL
5 B
A
W
B
Device
Co
ntr
o
l
Interface
#
of
S
te
p
s
Wiper
Configuration
Memory
Ty
p
e
Resistance (typical)
VDD
Operating
Range (1)
Package
Options (k
Ω)
Wiper
(
Ω)
MCP40D17
I2C
128
Rheostat
RAM
5.0, 10.0, 50.0, 100.0
75
1.8V to 5.5V
SC70-6
MCP40D18
I2C
128
Potentiometer
RAM
5.0, 10.0, 50.0, 100.0
75
1.8V to 5.5V
SC70-6
MCP40D19
I2C
128
Rheostat
RAM
5.0, 10.0, 50.0, 100.0
75
1.8V to 5.5V
SC70-5
Note 1:
Analog characteristics only tested from 2.7V to 5.5V
7-Bit Single I2C (with Command Code) Digital POT
with Volatile Memory in SC70
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