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Nanjing Ouzhuo Technology Co.,Ltd
[China]

Address:
No.22, Gao gang li, Qin huai Zone, Nanjing Nanjing Jiangsu 210006 China

Phone:
86-25-52312738

Contact name:
Jie Bu , assistant

Nanjing Ouzhuo Technology Co.,Ltd

Hall Effect Elements and Ics

	Latching Hall-effect Switches

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Model Number

OH3172,OHS41

OH3172X
General Description

OH3172X Series High Sensitive Hall effect Switch IC are composed of a reverse protector, voltage regulator, Hall voltage generator, differential amplifier, Schmitt trigger and an open-collector output on a single silicon chip. ICs can convert the changeable magnetic field signal into digital voltage output.

Features

High Sensitivity

Resistant to Physical Stress

Wide Supply Voltage Range

Interfacing with All Kinds of Logic Circuits

Typical applications

High Sensitivity Non-contact Switch

DC Brushless Motor

DC Brushless Fan

Absolute Maximum Rating

Supply Voltag

V_{CC렁렁렁렁렁렁렁렁}4.5～24V

Output Current
I_{O렁렁렁렁렁렁렁렁렁}25mA

Operating Temperature Range

T_{A렁렁렁렁렁렁렁렁�}-40～85 °C

Storage Temperature Range
T_{S 렁렁렁렁렁렁렁렁�}-65～150°C

Electrical Characteristics T_A=25°C

Parameter

Symbol

Test Condition

＆#118alue

Unit

Min

Typ

Max

Supply Voltage

V_CC

Vcc=4.5V～24V

4.5

-

24

V

Output Low Voltage

V_OUT

Vcc=4.5V   R_L=960Ω B≥B_OP

-

200

400

mV

Output High Voltage

I_OFF

Vo=Vccmax   B≤B_RP

-

1

10

μA

Supply Current

I_CC

         Vcc=Vccmax                             open-collector output

-

6

9

mA

Output Rise time

t_r

Vcc=12V R_L=820Ω C_L=20pF

-

1

2

μS

Output Fall time

t_f

Vcc=12V R_L=820Ω C_L=20pF

-

1

2

μS

Magnetic Characteristics (V_CC=4.5～24V)

Parameter

Symbol

＆#118alue

Unit

Min

Typ

Max

Operate Point

(B_OP)

B_OP

-

-

7

mT

Operate Point

(B_OP)

B_RP

-7

-

-

mT

Hysteresis

(B_H)

B_H

4

-

-

mT

OHS41
General Description

OHS41 Series High Sensitive Hall effect Switch IC are composed of a reverse protector, voltage regulator, Hall voltage generator, differential amplifier, Schmitt trigger and an open-collector output on a single silicon chip. ICs can convert the changeable magnetic field signal into digital voltage output.

Features

High Sensitivity

Resistant to Physical Stress

Wide Supply Voltage Range

Interfacing with All Kinds of Logic Circuits

Typical applications

High Sensitivity

Resistant to Physical Stress

Wide Supply Voltage Range

Interfacing with All Kinds of Logic Circuits

Absolute Maximum Rating

Supply Voltag

V_{CC렁렁렁렁렁렁렁렁}4.5～24V

Output Current

I_{O렁렁렁렁렁렁렁렁렁}25mA

Operating Temperature Range

T_{A렁렁렁렁렁렁렁렁�}-55～150 °C

Storage Temperature Range
T_{S 렁렁렁렁렁렁렁렁�}-55～150°C

Electrical & Magnetic Characteristics T_A=25°C

Parameter	Symbol	Output Rise time	＆#118alue			Unit
Parameter	Symbol	Output Rise time	Min	Typ	Max	Unit
Supply Voltage	VCC	VCC = 4.5 V～24V	4.5	-	24	V
Supply Current	ICC	VCC = 24V		4	8	mA
Output Leakage Current	IOH	VO = 24V	-	0	10	μA
Output Low Voltage	VOL	VCC = 4.5 V～24V	-	0.2	0.4	V
Operate Point (B_OP)	BOP	VCC = 4.5 V～24V(25°C)	1	4	7	mT
Release Point (B_RP)	BRP	VCC = 4.5 V～24V(25°C)	-7	-4	-1	mT
Hysteresis (B_H)	BH	VCC = 4.5 V～24V	4	8	-	mT
Output Rise time	tr	VCC=12V,RL=800Ω,CL=20pF	-	1.5	-	μS
Output Rise time	tf	VCC=12V,RL=800Ω,CL=20pF	-	1.0	-	μS