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參數(shù)資料
| 型號(hào)： | A3150JLT |
| 廠(chǎng)商： | Allegro MicroSystems, Inc. |
| 英文描述： | IC SENSOR TOUCH/PROX 1CHAN 8DIP |
| 中文描述： | 可編程，CHOPPERSTABILIZED，霍爾效應(yīng)開(kāi)關(guān) |
| 文件頁(yè)數(shù)： | 9/12頁(yè) |
| 文件大小： | 100K |
| 代理商： | A3150JLT |
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000
3150
PROGRAMMABLE, CHOPPER-
STABILIZED, PRECISION,
HALL-EFFECT SWITCH
PROGRAMMING PROTOCOL
The A3150JLT and A3150JUA operate points are pro-
grammed by serially addressing the device through the
supply terminal (pin1). After the correct operate point is
determined, the device programming bits are selected and
then a “l(fā)ock” set to prevent any further (accidental)
programming.
Program Enable. To program the device, a sequence of
pulses is used to activate/enable the addressing mode as
shown in figure 1. This sequence of a V
PP pulse, at least
seven V
PH pulses, and a VPP pulse with no supply interrup-
tions, is designed to prevent the device from being pro-
grammed accidentally (for example, as a result of noise on
the supply line).
VPP
VPH
VPL
0
td(1)
td(0)
Dwg. WH-013
PROGRAM ENABLE
(AT LEAST 7 PULSES)
td(1)
Figure 1 — Program enable
PROGRAMMING PROTOCOL over operating temperature range.
Limits
Characteristic
Symbol
Description
Min.
Typ.
Max.
Units
Programming Voltage
VPL
Minimum voltage during programming
4.5
5.0
5.5
V
PH
9.0
10
11
V
PP
20
23
25
V
Programming Current
IPP
Max. supply current during programming
–
250
–
mA
Pulse Width
t
d(0)
OFF time between bits
20
–
s
t
d(1)
Enable, address, program, or lock bit ON time
20
–
s
tdP
Program pulse ON time
100
300
–
s
Pulse Rise Time
t
r
V
PL to VPH or VPP
11
–
s
Pulse Fall Time
t
f
V
PH or VPP to VPL
5.0
–
s
NOTE: Typical data is at TA = +25°C and is for design information only.
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|---|---|
| A3150JUA | 制造商:ALLEGRO 制造商全稱(chēng):Allegro MicroSystems 功能描述:PROGRAMMABLE, CHOPPERSTABILIZED, HALL-EFFECT SWITCH |
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| A3150UA-LT | 制造商:ALLEGRO 制造商全稱(chēng):Allegro MicroSystems 功能描述:PROGRAMMABLE, CHOPPERSTABILIZED, HALL-EFFECT SWITCH |
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