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AH173-PL-B-B

P1-P3P4-P6P7-P9
AH173
INTERNAL PULL-UP HALL EFFECT LATCH FOR HIGH
TEMPERATURE
AH173
Document number: DS31044 Rev. 10 - 2
1 of 9
www.diodes.com
July 2010
© Diodes Incorporated
Description
AH173 is a single-digital-output Hall-Effect latch sensor with
pull-up resistor for high temperature operation. The device
includes an on-chip Hall voltage generator for magnetic
sensing, an amplifier to amplify Hall voltage, a comparator to
provide switching hysteresis for noise rejection, and an
output driver with a pull-up resistor (Rpu). An internal band-
gap regulator provides a temperature compensated supply
voltage for internal circuits and allows a wide operating
supply range.
When the magnetic flux density (B) is larger than operate
point (Bop), output is switched on (OUT pin is pulled low).
The output state is held on until a magnetic flux density
reversal falls below Brp. When B is less than Brp, the output
is switched off.
The AH173 is available in SIP-3L and SC59 packages.
Features
• Bipolar Hall-Effect latch sensor
• 3V to 20V DC operating voltage
• Built-in pull-up resistor
• 25mA output sink current
• Operating temperature: -40°C to +125°C
• SIP-3L and SC59 packages
(SC59 is commonly known as SOT23 in Asia)
• Green Molding Compound (No Br, Sb) (Note 1)
Pin Assignments
(Top View)
1.
Vcc
2.
GND
3.
OUT
SIP-3L
1. Vcc
GND 2.
3. OUT
(Top View)
SC59
Applications
• Rotor Position Sensing
• Current Switch
• Encoder
• RPM Detection
Notes: 1. EU Directive 2002/95/EC (RoHS). All applicable RoHS exemptions applied. Please visit our website at
http://www.diodes.com/products/lead_free.html.
Typical Application Circuit
M
Driver
&
Control Logic
Ia
Ib
Ic
IA
IC
IB
HB
HA
HC
M: Three Phase Hall Motor
Digital Hall Effect Sensor
Hall Motor Driver
RPM sensing
3 Phase Hall Motor
AH173
INTERNAL PULL-UP HALL EFFECT LATCH FOR HIGH
TEMPERATURE
AH173
Document number: DS31044 Rev. 10 - 2
2 of 9
www.diodes.com
July 2010
© Diodes Incorporated
Pin Descriptions
Pin Name Pin # Description
Vcc 1 Positive Power Supply
GND 2 Ground
OUT 3 Output Stage
Functional Block Diagram
AMP
REG.
Rpu
1
3
2
V
CC
OUT
GND
Absolute Maximum Ratings (T
A
= 25°C)
Symbol Characteristics Values Unit
V
CC
Supply Voltage 20 V
V
OUT
(off) Output “Off” Voltage 20 V
I
O
(sink) Output “On” Current 25 mA
Ts Storage Temperature Range -65~+150
°C
T
J
Maximum Junction Temperature +150
°C
P
D
Power Dissipation
SIP-3L 550 mW
SC59 230 mW
Recommended Operating Conditions
Symbol Characteristic Conditions Min Max Unit
V
CC
Supply Voltage Operating 3 20 V
T
A
Operating Ambient Temperature Operating -40 125
°C
AH173
INTERNAL PULL-UP HALL EFFECT LATCH FOR HIGH
TEMPERATURE
AH173
Document number: DS31044 Rev. 10 - 2
3 of 9
www.diodes.com
July 2010
© Diodes Incorporated
Electrical Characteristics (T
A
= 25°C)
Magnetic Characteristics (T
A
= 25°C, Vcc
= 12V, unless otherwise specified, Note 2)
(1mT = 10 Gauss)
A grade
Symbol Parameter Min Typ. Max Unit
Bops(south pole to brand side) Operation Point 15 - 60 Gauss
Brps(south pole to brand side) Release Point -60 - -15 Gauss
Bhy(|Bopx|-|Brpx|) Hysteresis - 80 - Gauss
B grade
Symbol Parameter Min Typ. Max Unit
Bops(south pole to brand side) Operation Point 5 - 80 Gauss
Brps(south pole to brand side) Release Point -80 - -5 Gauss
Bhy(|Bopx|-|Brpx|) Hysteresis - 80 - Gauss
Notes: 2. Magnetic characteristics may vary with supply voltage, operating temperature and after soldering.
Operating Characteristics
Marking Side
S
B
hy
V
SAT
V
cc
(Output
Voltage)
V
d
B
rp
B
op
0
(Magnetic Flux Density)
V
out
High
Low
Marking Side
S
(SIP-3L)
(SC59)
N
N
Symbol Characteristics Conditions Min Typ. Max Unit
V
OUT (SAT)
Output Saturation Voltage
V
CC
= 12V, OUT ”ON”
I
O
= 10mA
- 300 400 mV
I
CC
Supply Current V
CC
= 12V, OUT ”OFF” - 3.5 6 mA
Rpu Internal Pull-up Resistor 7 10 13
KΩ
V
d
Dropout Voltage
V
d
= V
CC
- V
Ce
- - 0.3 V
P1-P3P4-P6P7-P9

AH173-PL-B-B

Mfr. #:
Buy AH173-PL-B-B
Manufacturer:
Diodes Incorporated
Description:
Board Mount Hall Effect / Magnetic Sensors 3.0V-20V 25MA 80G -80G
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
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