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| 型号： | A1374EKB-T |
| 厂商： | Allegro Microsystems Inc |
| 文件页数： | 16/23页 |
| 文件大小： | 466K |
| 描述： | IC SENSOR HALL EFFECT PREC 3-SIP |
| 产品培训模块： | Current Sensor |
| 标准包装： | 500 |
| 传感范围： | 1.75mV/G ~ 11.25mV/G |
| 类型： | 双极或单极，可编程 |
| 电源电压： | 4.5 V ~ 5.5 V |
| 电流 - 电源： | 10mA |
| 电流 - 输出（最大）： | 10mA |
| 输出类型： | 模拟，比率 |
| 特点： | 高精度 |
| 工作温度： | -40°C ~ 85°C |
| 封装/外壳： | 3-SIP |
| 供应商设备封装： | 3-SIP |
| 包装： | 散装 |
High Precision, Output Pin Programmable
Linear Hall Effect Sensor ICs
A1373 and
A1374
15
Allegro MicroSystems, Inc.
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
Several parameters can be field-programmed. To do so, a coded
series of voltage pulses through the VOUT pin is used to set
bitfields in onboard registers. The effect on the device output can
be monitored, and the registers can be cleared and set repeatedly
until the required output results are achieved. To make the setting
permanent, bitfield-level solid state fuses are blown, and finally,
a device-level fuse is blown, blocking any further coding.
Although any programmable variable power supply can be
used to generate the pulsed waveforms, Allegro highly recom-
mends using the Allegro Sensor IC Evaluation Kit, available on
the Allegro Web site On-line Store. The manual for that kit is
available for download free of charge, and provides additional
information on programming these devices.
There are three voltage levels that must be taken into account
when programming. For purposes of explanation in this docu-
ment, the signal levels are referred to simply as high program-
ming voltage, V
PH
, mid, V
PM
, and low, V
PL
.
The rising edge of the high level, V
PH
, pulse generates a state
change. The falling edge of the high level, V
PH
, pulse increments
the mode, register, or bitfield selection by one, when allowed to
drop below the low level, V
PL
, threshold. A delay on the fall-
ing edge, at the mid level, V
PM
, range is required to guarantee
proper programming level recognition. When it is not desirable to
increment these fields further, it is acceptable to hold the signal
at the mid level, V
PM
, range and then transition to another high
level, V
PH
, pulse. Referring to the Programming State Machine
diagram, when using Blow Fuse mode the fourth high level, V
PH
,
pulse (including the key sequence to enable Blow Fuse mode),
will blow the selected key-code combination. If fuse blowing is
not desired, it is recommended to reset the A137x by toggling the
supply pin. If the high level, V
PH
, pulse is not generated, and the
A137x is not reset, then the next key sequence to change states
will blow the unwanted key-code combination. For multiple
register addressing without fuse blowing, Try Value mode must
be used.
Pulse Generation
PROGRAMMING PROTOCOL CHARACTERISTICS, over operating temperature range, unless otherwise noted
Characteristic
Symbol
Test Conditions
Min. Typ. Max. Units
Programming Voltage
1
V
PL
Low voltage range, for addressing registers and
bitfields
0
5
V
V
PM
Mid voltage range, for addressing bitfields and for
separating programming signals
14
16
V
V
PH
High voltage range, for enabling state changes
and for fuse blowing
25 26 27
V
Programming Current
2
I
PP
t
r
= 11 約; 5 V ?28 V; C
PROG
= 0.1 糉
209 mA
Pulse Width
t
PHE
High pulse duration for enabling state change
20
約
t
PHP
High pulse duration for blowing fuses
100
約
t
PLA
Low pulse duration for bitfield addressing
6
約
t
PME
Mid pulse delay on falling edge of high pulse, V
PH
15
約
t
PMA
Mid pulse duration for bitfield addressing
6
約
Pulse Rise Time
t
r
V
PL
to V
PH
or V
PM
; maximum may be application
dependent
5
100 約
Pulse Fall Time
t
f
V
PH
or V
PM
to V
PL
; maximum may be application
dependent
5
100 約
1
Programming voltages are measured at pin #3, VOUT, of the A137x.
2
A minimum capacitance of 0.1 糉 must be connected from VOUT to the GND pin of the A137x in order to provide the current
necessary to blow the fuse.
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相关代理商/技术参数 |
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| A1374EKBTI | 制造商:ALLEGRO 制造商全称:Allegro MicroSystems 功能描述:High Precision, Output Pin Programmable Linear Hall Effect Sensors |
| A1374EKBTI-T | 制造商:ALLEGRO 制造商全称:Allegro MicroSystems 功能描述:High Precision, Output Pin Programmable Linear Hall Effect Sensors |
| A1374LKB | 功能描述:IC SENSOR HALL EFFECT PREC 3-SIP RoHS:否 类别:传感器，转换器 >> 磁性 - 霍尔效应，数字式开关，线性，罗盘 (IC) 系列:- 标准包装:1 系列:- 传感范围:20mT ~ 80mT 类型:旋转 电源电压:4.5 V ~ 5.5 V 电流 - 电源:15mA 电流 - 输出（最大）:- 输出类型:数字式，PWM，8.5 位串行 特点:可编程 工作温度:-40°C ~ 150°C 封装/外壳:20-SSOP（0.209"，5.30mm 宽） 供应商设备封装:20-SSOP 包装:Digi-Reel® 其它名称:AS5132-HSST-500DKR |
| A1374LKB-T | 功能描述:IC SENSOR HALL EFFECT PREC 3-SIP RoHS:是 类别:传感器，转换器 >> 磁性 - 霍尔效应，数字式开关，线性，罗盘 (IC) 系列:- 标准包装:1 系列:- 传感范围:20mT ~ 80mT 类型:旋转 电源电压:4.5 V ~ 5.5 V 电流 - 电源:15mA 电流 - 输出（最大）:- 输出类型:数字式，PWM，8.5 位串行 特点:可编程 工作温度:-40°C ~ 150°C 封装/外壳:20-SSOP（0.209"，5.30mm 宽） 供应商设备封装:20-SSOP 包装:Digi-Reel® 其它名称:AS5132-HSST-500DKR |
| A1374LKBTI | 制造商:ALLEGRO 制造商全称:Allegro MicroSystems 功能描述:High Precision, Output Pin Programmable Linear Hall Effect Sensors |
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