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参数资料
| 型号： | A3250ELTTR |
| 厂商： | Allegro Microsystems Inc |
| 文件页数： | 4/16页 |
| 文件大小： | 300K |
| 描述： | IC SW HALL EFFECT UNI SOT-89 |
| 标准包装： | 1,000 |
| 传感范围： | 50G |
| 类型： | 单极开关 |
| 电源电压： | 4.2 V ~ 24 V |
| 电流 - 电源： | 10mA |
| 电流 - 输出（最大）： | 20mA |
| 输出类型： | 数字，开路集电极 |
| 特点： | 稳压电压 |
| 工作温度： | -40°C ~ 85°C |
| 封装/外壳： | TO-243AA |
| 供应商设备封装： | SOT-89-3 |
| 包装： | 带卷 (TR) |
Field-Programmable, Chopper-Stabilized,
Unipolar Hall-Effect Switches
A3250 and
A3251
3
Allegro MicroSystems, Inc.
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000
www.allegromicro.com
OPERATING CHARACTERISTICS valid over operating T
A
and V
CC
, unless otherwise specified
Characteristic
Symbol
Test Conditions
Min. Typ. Max. Units
ELECTRICAL CHARACTERISTICS
Supply Voltage
1
V
CC
Running mode
4.2
24
V
Output Saturation Voltage
V
OUT(sat)
I
OUT
= 20 mA; Switch state = ON
175 400 mV
Output Leakage Current
I
OFF
V
OUT
= 24 V; Switch state = OFF
10 糀
Supply Current
I
CC(off)
A3250; B < B
RP
; V
OUT
= HIGH
4.0 7.0 mA
A3251; B > B
OP
; V
OUT
= HIGH
4.0 7.0 mA
I
CC(on)
A3250; B > B
OP
; V
OUT
= LOW
6.0 10.0 mA
A3251; B < B
RP
; V
OUT
= LOW
6.0 10.0 mA
Output Rise Time
t
r
R
LOAD
= 820 ? C
LOAD
= 10 pF
5.0 約
Output Fall Time
t
f
R
LOAD
= 820 ? C
LOAD
= 10 pF
5.0 約
Chopping Frequency
f
C
340
kHz
Power-Up Time
t
on
V
OUT
= HIGH
20
50
約
Output Current Limit
1,2
I
OUT(lim)
Short-circuit protection
60
90 120 mA
Power-On State
POS
A3250; B < B
RP
, t > t
on
HIGH
mV
A3251; B < B
RP
, t > t
on
LOW
mV
MAGNETIC CHARACTERISTICS
Initial Operate Point
B
OP
20 13
50
G
Temperature Drift of B
OP
擝
OP
B
OP
d 500 gauss
35
35
G
Hysteresis (B
OP
B
RP
)
B
hys
Package T
A
range = J
5.0 18
35
G
Package T
A
range = L
5.0 13
35
G
PROGRAMMING CHARACTERISTICS
Programmable B
OP
Values
3
B
OP(prog)
50
e350 G
Number of Programming Bits
Switchpoint set
6
Bit
Programming lock
1
Bit
Resolution
B
RES
7.0
G
TRANSIENT PROTECTION CHARACTERISTICS
Supply Zener Voltage
V
Z
28
V
Supply Zener Current
I
Z
V
CC
= 28 V
13 mA
Reverse Battery Current
I
RCC
V
RCC
= 18 V, T
J
< T
J(max)
5.0 mA
1
Do not exceed T
J
(max): Additional information on power derating is provided in the applications section.
2
Short-circuit protection is not intended for continuous operation; permanent damage may result.
3
Device can be used below 50 G but is not guaranteed to be a unipolar switch. It is the responsibility of the programmer to verify that the desired
switchpoint has been achieved.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| A3250ELTTR-T | 制造商:ALLEGRO 制造商全称:Allegro MicroSystems 功能描述:Field-Programmable, Chopper-Stabilized Unipolar Hall-Effect Switches |
| A3250EUA | 功能描述:IC SW HALL EFFECT UNI 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 |
| A3250EUA-T | 制造商:ALLEGRO 制造商全称:Allegro MicroSystems 功能描述:Field-Programmable, Chopper-Stabilized Unipolar Hall-Effect Switches |
| A3250JUA | 制造商:ALLEGRO 制造商全称:Allegro MicroSystems 功能描述:Field-Programmable, Chopper-Stabilized Unipolar Hall-Effect Switches |
| A3250JUATL | 制造商:ALLEGRO 制造商全称:Allegro MicroSystems 功能描述:Field-Programmable, Chopper-Stabilized Unipolar Hall-Effect Switches |
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