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参数资料
| 型号： | MAX5429EUA+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 1/10页 |
| 文件大小： | 0K |
| 描述： | IC POT DGTL 1TIME PROGR 8-UMAX |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 接片： | 32 |
| 电阻（欧姆）： | 10k |
| 电路数： | 1 |
| 温度系数： | 标准值 35 ppm/°C |
| 存储器类型： | 非易失 |
| 接口： | I²C（芯片选择，增/减） |
| 电源电压： | 2.7 V ~ 5.5 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-TSSOP，8-MSOP（0.118"，3.00mm 宽） |
| 供应商设备封装： | 8-uMAX |
| 包装： | 带卷 (TR) |
General Description
The MAX5427/MAX5428/MAX5429 linear-taper digital
potentiometers function as mechanical potentiometers,
but replace the mechanics with a simple 2-wire digital
interface. These digital potentiometers are unique in that
they have an optional one-time programmable feature
that either sets the wiper’s power-on reset (POR) posi-
tion to a user-defined value, or the wiper can be set and
the interface disabled to prevent further adjustment.
The MAX5427 has an end-to-end resistance of 100k
,
the MAX5428 a resistance of 50k
, and the MAX5429 a
resistance of 10k
. All these devices have 32 wiper
positions, operate from a single 2.7V to 5.5V supply, and
use less than 1.5A (max) static supply current.
The MAX5427/MAX5428/MAX5429 are available in
8-pin thin QFN and MAX packages. Each device is
guaranteed over the extended temperature range of
-40°C to +85°C.
Applications
Mechanical Potentiometer Replacement
Products Using One-Time Factory Calibration
Features
Wiper Position Stored After One-Time Fuse
Programming
User-Defined Power-On Reset Position
35ppm/°C End-to-End Temperature Coefficient
and 5ppm/°C Ratiometric Temperature Coefficient
32 Tap Positions
Tiny 8-Pin Thin QFN and MAX Packages
Ultra-Low 1.5A (max) Static Supply Current
2.7V to 5.5V Single-Supply Operation
Wiper Position Programmed Through Simple
2-Wire Serial Interface
10k, 50k, and 100k End-to-End Resistances
MAX5427/MAX5428/MAX5429
One-Time Programmable, Linear-Taper
Digital Potentiometers
________________________________________________________________ Maxim Integrated Products
1
Ordering Information
MAX5427
MAX5428
MAX5429
32-
POSITION
DECODER
UP/DOWN
COUNTER
ONE-TIME
PROGRAM
BLOCK
8
H
S31
S32
S30
S2
S3
S1
R31
R30
RW
R2
R1
1
W
7
L
3
4
2
6
5
VDD
VPP
GND
CS
U/D
Functional Block Diagram
19-2462; Rev 2; 3/05
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
EVALUATION
KIT
AVAILABLE
PART
TEMP RANGE
PIN-PACKAGE
R (k
)
MAX5427EUA
-40°C to +85°C
8 MAX
100
MAX5427ETA
-40°C to +85°C
8 Thin QFN-EP*
100
MAX5428EUA
-40°C to +85°C
8 MAX
50
MAX5428ETA
-40°C to +85°C
8 Thin QFN-EP*
50
MAX5429EUA
-40°C to +85°C
8 MAX
10
MAX5429ETA
-40°C to +85°C
8 Thin QFN-EP*
10
VPP
GND
1
2
8
7
H
L
VDD
W
MAX
TOP VIEW
3
4
6
5
MAX5427
MAX5428
MAX5429
CS
U/D
VPP
GND
*EXPOSED PADDLE. CONNECTED TO GND.
8
7
H
L
VDD
W
QFN
6
5
MAX5427
MAX5428
MAX5429
CS
U/D
1
2
3
4
*
Pin Configurations
*EP = Exposed paddle.
Max is a registered trademark of Maxim Integrated Products, Inc.
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