OH921 [OHHALLSENSOR]
HIGH SENSITIVITY CMOS HALL-EFFECT LATCH; 高灵敏度CMOS霍尔效应锁存
| 型号： | OH921 |
| 厂家： | 
Nanjing Ouzhuo Technology Co., Ltd. |
| 描述： | HIGH SENSITIVITY CMOS HALL-EFFECT LATCH |
| 文件： | 总5页 (文件大小：206K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
OH921
HIGH SENSITIVITY CMOS HALL-EFFECT LATCH
Order Information
Package
TO92S-3
SOT23-3
Temperature Range
-40 to 125°C
Part Number
OH921-T
Marking ID
920
Packing Type
Bulk
-40 to 125°C
OH921-S
GS6
Tape & Reel
General Description:
The OH921 is a Hall-effect latch designed in mixed signal CMOS technology.
It is quite suitable for use in automotive, industrial and consumer applications.
Superior high-temperature performance is made possible through dynamic
offset cancellation, which reduces the residual offset voltage normally caused
by device over-molding, temperature dependencies, and thermal stress. The device
integrates a voltage regulator, Hall-voltage generator, small-signal amplifier, chopper
stabilization, schmitt trigger, and is directly drivable by the output.
Features
Applications
• Wide Operating Voltage Range from 3.5 to 24V
• Brushless DC Motor Commutation
• Symmetrical Switch Points
• Brushless DC Fan
• Chopper-stabilized Amplifier Stage
• Solid-state Switch
• Superior Temperature Stability
• Revolution Counting
• Compact Size
• Speed Detection
• Built-in Pull-up Resistor
• High Sensitivity and Unconnected Switch
• ESD Rating: 3500V (Human Body Model)
Absolute Maximum Ratings （TA=25℃）
Supply VoltageVCC··············3.5-28V
Functional Block Diagram
Output Current IO···················25mA
Operating Temperature Range TA ·····-50～150℃
Storage Temperature RangeTS ··········-65～150℃
Page 1
Nanjing Ouzhuo Technology co., Ltd
www.ohhall.com
www.zbling.com
Tel：86-25-52312738，86-25-83247886 FAX: 86-25-52312738
E-mail: ohhall@163.com
OH921
HIGH SENSITIVITY CMOS HALL-EFFECT LATCH
Electrical Characteristics
Vcc =12V, TA=25°C, unless otherwise specified
Value
Parameter
Symbol
Conditions
Unit
V
Min Typ Max
Supply Voltage
VCC
3.5
12
24
Output Saturation
Voltage
VSAT
IOUT=20mA, B>BOP
-
185
500
mV
Output Leakage Current
Supply Current
ILEAKAGE
VCC=VOUT=24V, B<BRP
VCC=12V
-
-
-
-
0.1
3
10
5
μA
mA
μS
μS
ICC
tr
Output Rise Time
Output Falling Time
0.4
0.4
2
CL=20pF
tf
2
Magnetic Characteristics
Vcc =12V, TA=25°C, (1mT = 10 Gauss)
Value
Parameter
symbol
Unit
Min
0.5
-4
Typ
Max
4
Operate Point
Release Point
Hysteresis
BOP
BRP
BH
2.2
mT
mT
mT
-2.2
4.5
-0.5
-
-
Typical Application：
Page 2
www.ohhall.com
Tel：86-25-52312738，86-25-83247886 FAX: 86-25-52312738
Nanjing Ouzhuo Technology co., Ltd
www.zbling.com
E-mail: ohhall@163.com
OH921
HIGH SENSITIVITY CMOS HALL-EFFECT LATCH
Package Type
Parameter
South Pole
North Pole
South Pole
North Pole
Test condition Output
B＞BOP
B＜BRP
B＞BOP
B＜BRP
Low
High
High
Low
TO-92S-3
SOT-23-3
Typical Performance Characteristics
BOP/BRP/BHYS vs. VCC
BOP/BRP/BHYS vs. TA
Page 3
Nanjing Ouzhuo Technology co., Ltd
www.ohhall.com
www.zbling.com
Tel：86-25-52312738，86-25-83247886 FAX: 86-25-52312738
E-mail: ohhall@163.com
OH921
HIGH SENSITIVITY CMOS HALL-EFFECT LATCH
Mechanical Dimension
unit:mm(inch)
TO-92S-3
Page 4
Nanjing Ouzhuo Technology co., Ltd
www.ohhall.com
www.zbling.com
Tel：86-25-52312738，86-25-83247886 FAX: 86-25-52312738
E-mail: ohhall@163.com
OH921
HIGH SENSITIVITY CMOS HALL-EFFECT LATCH
SOT23-3
Page 5
Nanjing Ouzhuo Technology co., Ltd
www.ohhall.com
www.zbling.com
Tel：86-25-52312738，86-25-83247886 FAX: 86-25-52312738
E-mail: ohhall@163.com
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