參數(shù)資料
型號: MAX5429EUA+
廠商: Maxim Integrated Products
文件頁數(shù): 8/10頁
文件大?。?/td> 0K
描述: IC DGTL POT 1TIME PROGR 8-UMAX
產(chǎn)品培訓(xùn)模塊: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標準包裝: 50
接片: 32
電阻(歐姆): 10k
電路數(shù): 1
溫度系數(shù): 標準值 35 ppm/°C
存儲器類型: 非易失
接口: I²C(芯片選擇,增/減)
電源電壓: 2.7 V ~ 5.5 V
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 8-TSSOP,8-MSOP(0.118",3.00mm 寬)
供應(yīng)商設(shè)備封裝: 8-uMAX
包裝: 管件
產(chǎn)品目錄頁面: 1399 (CN2011-ZH PDF)
It is recommended that the user either use six
CS puls-
es (convert to a fixed voltage-divider) or five pulses
(program the initial power-up value of the device, but
still be able to adjust the wiper). If the device is pro-
grammed with five pulses and later it is desired to dis-
able the interface (convert to a fixed voltage-divider),
then care must be taken to ensure that the wiper is in
the same position as it was originally set to (when pro-
grammed with five pulses). The full six programming
pulses must be applied. If the wiper is not in its original
programmed position prior to disabling the interface,
the final locked-out position is correct. Note that once
the six-pulse program occurs, no further programming
is possible.
The VPP power supply must be able to source at least
5mA and have a good transient response. The VPP power
supply should be decoupled with 22F and have no more
than 250H of inductance and/or 40
of parasitic resis-
tance between the capacitors and the device (Figure 5).
The device does not require decoupling capacitors near
VPP, provided the above guidelines are met.
MAX5427/MAX5428/MAX5429
One-Time Programmable, Linear-Taper
Digital Potentiometers
_______________________________________________________________________________________
7
VPP
CS
11V
0V
5 BITS RECORD WIPER POSITION
OPTIONAL LOCKOUT BIT
U/D
tCH
tCL
tCP
tPH
tPC
Figure 4. One-Time Program Mode Serial Interface Timing Diagram
LPARASITIC
RPARASITIC
TRACE PARASITICS
MAX5427
MAX5428
MAX5429
VPP = 11V
22
F
< 250
H
< 40
VPP
Figure 5. VPP Power-Supply Connection
Chip Information
TRANSISTOR COUNT: 2270
PROCESS: BiCMOS
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