Effect Latch. AH266 Datasheet

AH266 Latch. Datasheet pdf. Equivalent

AH266 Datasheet
Recommendation AH266 Datasheet
Part AH266
Description High Voltage Hall Effect Latch
Feature AH266; AH266 High Voltage Hall Effect Latch Features - On-chip Hall plate - Operating voltage: 4V~28V - Out.
Manufacture Anachip
Datasheet
Download AH266 Datasheet




Anachip AH266
High Voltage Hall Effect Latch
AH266
Features
General Description
- On-chip Hall plate
- Operating voltage: 4V~28V
- Output current: 400mA(Continuous, 25oC)
- Reverse protection diode only for chip reverse
power connecting (Note)
- Output protection Zener breakdown Vz=62V(Typ)
- Package: SIP-4L
(Note)
Protection diode only exists at power pin(1,4) output, not
including pin (2,3).
Application
- Dual-coil Brush-less DC Motor
- Dual-coil Brush-less DC Fan
- Revolution Counting
- Speed Measurement
AH266 is an integrated Hall sensor with output
drivers designed for electronic commutation of
brush-less DC motor applications. The device
includes an on-chip Hall voltage generator for
magnetic sensing, a comparator that amplifies the
Hall voltage, and a Schmitt trigger to provide
switching hysteresis for noise rejection, and
complementary darlington open-collector drivers for
sinking large current loads. An internal bandgap
regulator is used to provide temperature
compensated supply voltage for internal circuits and
allows a wide operating supply range.
If a magnetic flux density (B) is larger than operate
point (Bop), DO turn on (low) and DOB turn off
(high). The outputs state is latched prior to reach
release point (Brp). if B< Brp, DO turn off and DOB
turn on. ATS266 is rated for operation over
temperature range from -20oC to 85 oC and voltage
range from 4V to 28V. The devices are available in
low cost die forms or rugged 4 pin SIP packages.
Pin Assignment
Pin Configurationwww.DataSheet4U.com
4. GND
3. DOB
2. DO
1. VCC
Ordering Information
Name
VCC
DO
DOB
GND
Description
Positive Power Supply
Output Pin
Output Pin
Ground
AH266 X - X X X - X
Wafer Body
Blank or
A~Z : if necessary
to specify
Package
P: SIP-4L
Lead
L : Lead Free
Blank: Normal
Packing
Blank : Tube
A : Taping
Magnetic
Characteristics
A or B
This datasheet contains new product information. Anachip Corp. reserves the rights to modify the product specification without notice. No liability is assumed as a result of the use of
this product. No rights under any patent accompany the sale of the product.
Rev. 0.1 Mar 25, 2004
1/6



Anachip AH266
High Voltage Hall Effect Latch
Block Diagram
VC1 C
REG.
Hall
Plate
Amp
AH266
DO
DOB
Application Circuit
266
123 4
Vcc
coil1
coil2
Brush-less DC Fan
Note: This application circuit can’t protect reverse coil current if power is connecting reverse.
Anachip Corp.
www.anachip.com.tw
Rev 0.1 Mar 25, 2004
2/6



Anachip AH266
High Voltage Hall Effect Latch
AH266
Absolute Maximum Ratings (at Ta = 250C )
Parameter
Supply voltage
Output “OFF ” voltage
Output “ON” current
Magnetic flux density
Operating temperature range
Storage temperature range
Power dissipation (Note 2)
Note 1: Io(con) is 150 mA at 85°C
2: See Performance Characteristic for other conditions
Symbol
VCC
Vout (off)
Io (con)
Io (hold)
Io (peak)
B
Top
Tstg
PD
Electrical Characteristics ( Ta = 25°C )
Rating
28
28
400 (Note 1)
500
700
Unlimited
-20~+85
-65~+150
550
Unit
V
V
mA
mA
mA
Gauss
°C
°C
mW
Characteristic
Supply Voltage
Output Zener Breakdown
Output Saturation Voltage
Output Leakage Current
Supply Current
Output Rise Time
Output Falling Time
Switch Time Differential
Test Circuit
Symbol
Conditions
Vcc
Vz
Vce(sat)
Icex
Icc
tr
tf
t
Output Turn off
Vcc=24V, Ic=400mA
Vce=24V, Vcc=24V
Vcc=24V, Output Open
Vcc=24V, RL=820, CL=20pF
Vcc=24V, RL=820, CL=20pF
Vcc=24V, RL=820, CL=20pF
Min Typ
4
54 62
1.1
< 0.1
5
1.0
1.0
3.0
Max
28
70
1.5
10
10
5
1.5
10
Unit
V
V
V
µA
mA
µs
µs
µs
24V 266
Anachip Corp.
www.anachip.com.tw
RL1
RL2
RL1=RL2=820 Ohm
CL1=CL2=20 pF
CL1 CL2
3/6
Vout1(DO)
Vout2(DOB)
Rev 0.1 Mar 25, 2004







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