Cosemitech
CHA44XP/CH44XP
Automotive Product Group
This is advanced information on a new product now
in development or undergoing evaluation. Details are
subject to change without notice and Cosemitech
assumes no obligation for future manufacture of this
product. Contact Cosemitech for the latest status.
Preliminary Datasheet 1.0
FEATURES and FUNCTIONAL DIAGRAM
AEC-Q100 automotive qualified for CHA44XP
Build in 10K ohm output pull up resistor
Digital Bipolar-Latch Hall Sensor
Multiple Sensitivity Options (BOP / BRP):
+15 / -15 Gauss; +30 / -30 Gauss; +45 / -45 Gauss; +120 / 120 Gauss;
Chopper stabilization for stable operate points throughout
operating temperature range
On board voltage regulator for 2.5V to 22V range
Resistant to physical stress
Output short-circuit protection
Operation from unregulated supply
Reverse-battery and freewheeling protection
Solid-state reliability
Wide Operating temperature range: -40 to 150 oC
Small package sizes TO-92S, SOT-23 and SOT-89
RoHS-compliant material meets directive 2011/65/EU
PACKAGE
TO-92S
SOT-23-3L
SOT-89-3L
APPLICATIONS
- Speed and RPM sensing
- Tachometer, counter pickup
- Flow-rate sensing
- Brushless dc (direct
current) motor commutation
- Motor and fan control
- Robotics control
DESCRIPTION
The CHA44XP/CH44XP Hall-effect sensor is extremely temperature-stable and stress-resistant sensor
ICs, especially suited for operation over extended temperature ranges from -40°C to 150°C. Superior high
temperature performance is possible through dynamic offset cancellation, which reduces the residual offset
voltage normally caused by device over-molding, temperature dependencies, and thermal stress.
The device includes a voltage regulator, Hall-voltage generator, small-signal amplifier, chopper
stabilization, Schmitt trigger, and a short circuit protected open-drain output to sink up to 25 mA.
An on-board regulator permits operation with supply voltages of 2.5 to 22 V. The advantage of operating
down to 2.5V is that the device can used in 2.5V applications or with additional external resistance in
series with the supply pin for greater protection against high-voltage transient events.
The CHA44XP/CH44XP series is latch Hall switch. For the latch mode, there are also invert polarity
devices. Normally a south pole of sufficient strength turns on the output; However, for invert polarity
devices, a north pole of sufficient strength turns on the output.
The CHA44XP/CH44XP also integrated internal clamps against supply/output transients; output short
circuits protection; reverse battery conditions.
Three package styles provide a magnetically optimized package for most applications, SOT-23, TO-92S
and SOT-89. Each package type is lead (Pb) free (suffix, –T), with a 100% matte-tin-plated lead-frame.
Page 1/15
Cosemitech
CHA44XP/CH44XP
Automotive Product Group
. This is advanced information on a new product now
in development or undergoing evaluation. Details are
subject to change without notice and Cosemitech
assumes no obligation for future manufacture of this
product. Contact Cosemitech for the latest status.
Preliminary Datasheet 1.0
Table of Contents
1. Product Family Members .............................................................................................................. 3
2. Pin Definitions and Descriptions .................................................................................................. 3
3. Absolute Maximum Ratings .......................................................................................................... 3
4. ESD Protections ............................................................................................................................ 5
5. Function Description .................................................................................................................... 5
6. Definition of Switching Function .................................................................................................. 5
7. Temperature Characterization ..................................................................................................... 5
8. Parameters Specification .............................................................................................................. 6
9. Application infromation ................................................................................................................. 7
10.Test Condition .............................................................................................................................. 7
11. Package Information ................................................................................................................... 8
Page 2/15
Cosemitech
CHA44XP/CH44XP
Automotive Product Group
This is advanced information on a new product now
in development or undergoing evaluation. Details are
subject to change without notice and Cosemitech assumes
no obligation for future manufacture of this product.
Contact Cosemitech for the latest status.
Preliminary Datasheet 1.0
1. Product Family Members
1.1 CHA44XP is automotive class product family
Part Number
Marking
ID
CHA441PSR
A441P
CHA441PTB
A441P
CHA441PER
A441P
CHA442PSR
A442P
CHA442PTB
A442P
CHA442PER
A442P
CHA443PSR
A443P
CHA443PTB
A443P
CHA443PER
A443P
CHA444PSR
A444P
CHA444PTB
A444P
CHA444PER
A444P
CHA441PNSR
P441N
CHA441PNTB
P441N
CHA441PNER
P441N
CHA442PNSR
P442N
CHA442PNTB
P442N
CHA442PNER
P442N
CHA443PNSR
P443N
CHA443PNTB
P443N
CHA443PNER
P443N
CHA444PNSR
P444N
CHA444PNTB
P444N
CHA444PNER
P444N
Description
Bipolar latching, Hall-effect digital sensor IC, SOT-23-3L package, tape and
reel packing (3000 units per reel)
Bipolar latching, Hall-effect digital sensor IC, flat, TO-92S package, bulk
packing (1000 units per bag)
Bipolar latching, Hall-effect digital sensor IC, SOT-89-3L package, tape and
reel packing (1000 units per reel)
Bipolar latching, Hall-effect digital sensor IC, SOT-23-3L package, tape and
reel packing (3000 units per reel)
Bipolar latching, Hall-effect digital sensor IC, flat, TO-92S package, bulk
packing (1000 units per bag)
Bipolar latching, Hall-effect digital sensor IC, SOT-89-3L package, tape and
reel packing (1000 units per reel)
Bipolar latching, Hall-effect digital sensor IC, SOT-23-3L package, tape and
reel packing (3000 units per reel)
Bipolar latching, Hall-effect digital sensor IC, flat, TO-92S package, bulk
packing (1000 units per bag)
Bipolar latching, Hall-effect digital sensor IC, SOT-89-3L package, tape and
reel packing (1000 units per reel)
Bipolar latching, Hall-effect digital sensor IC, SOT-23-3L package, tape and
reel packing (3000 units per reel)
Bipolar latching, Hall-effect digital sensor IC, flat, TO-92S package, bulk
packing (1000 units per bag)
Bipolar latching, Hall-effect digital sensor IC, SOT-89-3L package, tape and
reel packing (1000 units per reel)
Bipolar latching, Hall-effect digital sensor IC, SOT-23-3L package, tape and
reel packing (3000 units per reel)
Bipolar latching, Hall-effect digital sensor IC, flat, TO-92S package, bulk
packing (1000 units per bag)
Bipolar latching, Hall-effect digital sensor IC, SOT-89-3L package, tape and
reel packing (1000 units per reel)
Bipolar latching, Hall-effect digital sensor IC, SOT-23-3L package, tape and
reel packing (3000 units per reel)
Bipolar latching, Hall-effect digital sensor IC, flat, TO-92S package, bulk
packing (1000 units per bag)
Bipolar latching, Hall-effect digital sensor IC, SOT-89-3L package, tape and
reel packing (1000 units per reel)
Bipolar latching, Hall-effect digital sensor IC, SOT-23-3L package, tape and
reel packing (3000 units per reel)
Bipolar latching, Hall-effect digital sensor IC, flat, TO-92S package, bulk
packing (1000 units per bag)
Bipolar latching, Hall-effect digital sensor IC, SOT-89-3L package, tape and
reel packing (1000 units per reel)
Bipolar latching, Hall-effect digital sensor IC, SOT-23-3L package, tape and
reel packing (3000 units per reel)
Bipolar latching, Hall-effect digital sensor IC, flat, TO-92S package, bulk
packing (1000 units per bag)
Bipolar latching, Hall-effect digital sensor IC, SOT-89-3L package, tape and
reel packing (1000 units per reel)
Page 3/15
Cosemitech
CHA44XP/CH44XP
Automotive Product Group
. This is advanced information on a new product now
in development or undergoing evaluation. Details are
subject to change without notice and Cosemitech
assumes no obligation for future manufacture of this
product. Contact Cosemitech for the latest status.
Preliminary Datasheet 1.0
1.2 CH44XP is industry class product family
Part Number
Marking ID
CH441PSR
C441P
CH441PTB
C441P
CH441PER
C441P
CH442PSR
C442P
CH442PTB
C442P
CH442PER
C442P
CH443PSR
C443P
CH443PTB
C443P
CH443PER
C443P
CH444PSR
C444P
CH444PTB
C444P
CH444PER
C444P
CH441PNSR
441NP
CH441PNTB
441NP
CH441PNER
441NP
CH442PNSR
442NP
CH442PNTB
442NP
CH442PNER
442NP
CH443PNSR
443NP
CH443PNTB
443NP
CH443PNER
443NP
CH444PNSR
444NP
CH444PNTB
444NP
CH444PNER
444NP
Description
Bipolar latching, Hall-effect digital sensor IC, SOT-23-3L package, tape and
reel packing (3000 units per reel)
Bipolar latching, Hall-effect digital sensor IC, flat, TO-92S package, bulk
packing (1000 units per bag)
Bipolar latching, Hall-effect digital sensor IC, SOT-89-3L package, tape and
reel packing (1000 units per reel)
Bipolar latching, Hall-effect digital sensor IC, SOT-23-3L package, tape and
reel packing (3000 units per reel)
Bipolar latching, Hall-effect digital sensor IC, flat, TO-92S package, bulk
packing (1000 units per bag)
Bipolar latching, Hall-effect digital sensor IC, SOT-89-3L package, tape and
reel packing (1000 units per reel)
Bipolar latching, Hall-effect digital sensor IC, SOT-23-3L package, tape and
reel packing (3000 units per reel)
Bipolar latching, Hall-effect digital sensor IC, flat, TO-92S package, bulk
packing (1000 units per bag)
Bipolar latching, Hall-effect digital sensor IC, SOT-89-3L package, tape and
reel packing (1000 units per reel)
Bipolar latching, Hall-effect digital sensor IC, SOT-23-3L package, tape and
reel packing (3000 units per reel)
Bipolar latching, Hall-effect digital sensor IC, flat, TO-92S package, bulk
packing (1000 units per bag)
Bipolar latching, Hall-effect digital sensor IC, SOT-89-3L package, tape and
reel packing (1000 units per reel)
Bipolar latching, Hall-effect digital sensor IC, SOT-23-3L package, tape and
reel packing (3000 units per reel)
Bipolar latching, Hall-effect digital sensor IC, flat, TO-92S package, bulk
packing (1000 units per bag)
Bipolar latching, Hall-effect digital sensor IC, SOT-89-3L package, tape and
reel packing (1000 units per reel)
Bipolar latching, Hall-effect digital sensor IC, SOT-23-3L package, tape and
reel packing (3000 units per reel)
Bipolar latching, Hall-effect digital sensor IC, flat, TO-92S package, bulk
packing (1000 units per bag)
Bipolar latching, Hall-effect digital sensor IC, SOT-89-3L package, tape and
reel packing (1000 units per reel)
Bipolar latching, Hall-effect digital sensor IC, SOT-23-3L package, tape and
reel packing (3000 units per reel)
Bipolar latching, Hall-effect digital sensor IC, flat, TO-92S package, bulk
packing (1000 units per bag)
Bipolar latching, Hall-effect digital sensor IC, SOT-89-3L package, tape and
reel packing (1000 units per reel)
Bipolar latching, Hall-effect digital sensor IC, SOT-23-3L package, tape and
reel packing (3000 units per reel)
Bipolar latching, Hall-effect digital sensor IC, flat, TO-92S package, bulk
packing (1000 units per bag)
Bipolar latching, Hall-effect digital sensor IC, SOT-89-3L package, tape and
reel packing (1000 units per reel)
Page 4/15
Cosemitech
CHA44XP/CH44XP
Automotive Product Group
This is advanced information on a new product now
in development or undergoing evaluation. Details are
subject to change without notice and Cosemitech assumes
no obligation for future manufacture of this product.
Contact Cosemitech for the latest status.
Preliminary Datasheet 1.0
2. Pin Definitions and Descriptions
SOT-23-3L
(S)
1
TO-92S
(T)
1
SOT-89-3L
(E)
1
2
3
3
3
2
2
SOT-23-3L
Name
Type
Function
VDD
Supply
Supply Voltage pin
OUT
Output
Output pin with pull up resistor
GND
Ground
Ground pin
TO-92S
SOT-89-3L
3. Absolute Maximum Ratings
Parameter
Supply Voltage
VDD Reverse Voltage VDD
Symbol
VDD
VRDD
Min
-22
Max
24
Units
V
V
Supply Current
IDD
-
20
mA
Output Voltage
VOUT
-0.3
24
V
Output Current
IOUT
-
25
mA
Operating Ambient Temperature
TA
-40
150
°C
Storage Temperature
TS
-50
150
°C
Junction temperature
TJ
-50
165
°C
Magnetic Flux
B
No Limit
Gauss
Note: Exceeding the absolute maximum ratings may cause permanent damage. Exposure to absolutemaximum- rated conditions for extended periods may affect device reliability.
4. ESD Protections
Parameter
All pins 1)
Value
Unit
+/-8000
V
All pins
2)
+/-200
V
All pins
3)
+/-750
V
1) HBM (Human Body Mode) according to AEC-Q100-002
2) MM (Machine Mode) according to AEC-Q100-003
3) CDM (charged device mode) according to AEC-Q100-011
Page 5/15
Cosemitech
CHA44XP/CH44XP
Automotive Product Group
. This is advanced information on a new product now
in development or undergoing evaluation. Details are
subject to change without notice and Cosemitech
assumes no obligation for future manufacture of this
product. Contact Cosemitech for the latest status.
Preliminary Datasheet 1.0
5. Function Description
The CHA44XP/CH44XP exhibits latch magnetic switching characteristics. Therefore, it
requires both south and north poles to operate properly.
The device behaves as a latch with symmetric operating and release switching points
(BOP=|BRP|). This means magnetic fields with equivalent strength and opposite direction drive
the output high and low.
Removing the magnetic field (B→0), it keeps the output in its previous state. This latching
property defines the device as a magnetic memory.
A magnetic hysteresis BHYST keeps BOP and BRP separated by a minimal value. This
hysteresis prevents output oscillation near the switching point.
6. Magnetic Activation
7. Temperature Characteristics
Page 6/15
Cosemitech
CHA44XP/CH44XP
Automotive Product Group
This is advanced information on a new product now
in development or undergoing evaluation. Details are
subject to change without notice and Cosemitech assumes
no obligation for future manufacture of this product.
Contact Cosemitech for the latest status.
Preliminary Datasheet 1.0
8. Parameters Specification (VCC=3.3V supply, TA= -40 ºC to 150 ºC except
where otherwise specified.)
Symbol
VDD
IDD
VZSUPPLY
VZOUT
VRCC
IRCC
FC
tPO
VDSon
IOFF
IOUT(lim)
TR
TF
Td
RPU
RTH
FSW (2)
Parameter
Supply voltage
Supply Current
Supply
Zener
Clamp
Voltage
Output
Zener
Clamp
Voltage
Reverse Battery Zener
Reverse Battery Current
Chopping Frequency
Power-On Time
Output saturation voltage
Output Leakage Current
Output Current Limit
Output rise time
Output fall time
Output delay Time
Test Condition
-40 °C to 150 °C
VDD = 3.3V
Min
2.5
-
T
TS
CHA441P/CH441P
Magnetic operating point
BOP
Magnetic release point
BRP
Magnetic hysteresis window
BHYST
|BOP-BRP|
Magnetic offset; BO = (BOP
Bo
+ BRP) / 2
CHA442P/CH442P
Magnetic operating point
BOP
Magnetic release point
BRP
Magnetic hysteresis window
BHYST
|BOP-BRP|
Magnetic offset; BO = (BOP
Bo
+ BRP) / 2
CHA443P/CH443P
Max
22
3
Units
V
mA
ICC =7 mA; TA = 25°C
24
V
IOUT = 3mA
24
V
VCC = –22 V
-22
V
mA
KHz
-5
500
TA = 25°C; CLOAD = 10
pF
at 20mA, Gauss >BOP
VOUT = 24 V; Switch
state = Off
Short-Circuit Protection
RLOAD = 820 Ω, CLOAD
= 10 pF;
RLOAD = 820Ω, CLOAD =
10 pF;
B=Brp-100G
to
Bop+100G in 1us
–
–
30
μs
-
-
0.4
V
-
-
10
uA
30
–
90
mA
-
0.2
2
uS
-
0.1
2
uS
13
25
μs
Internal pull up resistor
Thermal resistance:
SOT-23-3L
TO-92S
SOT-89-3L
Maximum Switching
Frequency
Operating temperature
Storage temperature:
Typ.
1.6
10
Kohm
-
303
203
230
20
30
-
-40
-40
-
150
150
°C
°C
TA=-40oC to 150oC
TA=-40oC to 150oC
6
-36
15
-15
36
-6
Gauss
Gauss
TA=-40oC to 150oC
12
30
50
Gauss
TA=-40oC to 150oC
-15
0
15
Gauss
TA=-40oC to 150oC
TA=-40oC to 150oC
10
-50
30
-30
50
-10
Gauss
Gauss
TA=-40oC to 150oC
35
60
85
Gauss
TA=-40oC to 150oC
-15
0
15
Gauss
-
-
°C /W
°C/W
°C/W
KHz
Page 7/15
Cosemitech
CHA44XP/CH44XP
Automotive Product Group
. This is advanced information on a new product now
in development or undergoing evaluation. Details are
subject to change without notice and Cosemitech
assumes no obligation for future manufacture of this
product. Contact Cosemitech for the latest status.
Preliminary Datasheet 1.0
Magnetic operating point
Magnetic release point
Magnetic hysteresis window
BHYST
|BOP-BRP|
Magnetic offset; BO = (BOP
Bo
+ BRP) / 2
CHA444P/CH444P
Magnetic operating point
BOP
Magnetic release point
BRP
Magnetic hysteresis window
BHYST
|BOP-BRP|
Magnetic offset; BO = (BOP
Bo
+ BRP) / 2
CHA441NP/CH441NP
Magnetic operating point
BOP
Magnetic release point
BRP
Magnetic hysteresis window
BHYST
|BOP-BRP|
Magnetic offset; BO = (BOP
Bo
+ BRP) / 2
CHA442NP/CH442NP
Magnetic operating point
BOP
Magnetic release point
BRP
Magnetic hysteresis window
BHYST
|BOP-BRP|
Magnetic offset; BO = (BOP
Bo
+ BRP) / 2
CHA443NP/CH443NP
Magnetic operating point
BOP
Magnetic release point
BRP
Magnetic hysteresis window
BHYST
|BOP-BRP|
Magnetic offset; BO = (BOP
Bo
+ BRP) / 2
CHA444NP/CH444NP
Magnetic operating point
BOP
Magnetic release point
BRP
Magnetic hysteresis window
BHYST
|BOP-BRP|
Magnetic offset; BO = (BOP
Bo
+ BRP) / 2
BOP
BRP
TA=-40oC to 150oC
TA=-40oC to 150oC
20
-75
45
-45
75
-20
Gauss
Gauss
TA=-40oC to 150oC
70
90
110
Gauss
TA=-40oC to 150oC
-20
0
20
Gauss
TA=-40oC to 150oC
TA=-40oC to 150oC
70
-170
120
-120
170
-70
Gauss
Gauss
TA=-40oC to 150oC
180
240
300
Gauss
TA=-40oC to 150oC
-30
0
30
Gauss
TA=-40oC to 150oC
TA=-40oC to 150oC
-36
6
-15
15
-6
36
Gauss
Gauss
TA=-40oC to 150oC
15
30
50
Gauss
TA=-40oC to 150oC
-15
0
15
Gauss
TA=-40oC to 150oC
TA=-40oC to 150oC
-50
10
-30
30
-10
50
Gauss
Gauss
TA=-40oC to 150oC
35
60
85
Gauss
TA=-40oC to 150oC
-15
0
15
Gauss
TA=-40oC to 150oC
TA=-40oC to 150oC
-75
20
-45
45
-20
75
Gauss
Gauss
TA=-40oC to 150oC
70
90
110
Gauss
TA=-40oC to 150oC
-18
0
18
Gauss
TA=-40oC to 150oC
TA=-40oC to 150oC
-180
70
-120
120
-70
180
Gauss
Gauss
TA=-40oC to 150oC
180
240
300
Gauss
TA=-40oC to 150oC
-20
0
20
Gauss
(1) 1 mT = 10 Gauss
(2) Bandwidth describes the fastest changing magnetic field that can be detected and translated to the
output.
NOTICE
The magnetic field strength (Gauss) required to cause the switch to change state (operate and
release) will be as specified in the magnetic characteristics. To test the switch against the specified
magnetic characteristics, the switch must be placed in a uniform magnetic field.
Page 8/15
Cosemitech
CHA44XP/CH44XP
Automotive Product Group
This is advanced information on a new product now
in development or undergoing evaluation. Details are
subject to change without notice and Cosemitech assumes
no obligation for future manufacture of this product.
Contact Cosemitech for the latest status.
Preliminary Datasheet 1.0
9. Application Information
9.1 Typical Application
It is recommended that an external capacitor C1 is connected to the supply. This can reduce
the noise injected into the device. Normal 0.1uF is suggested.
Typical Application Circuit
9.2 Device Output
If the device is powered on with a magnetic field strength between BRP and BOP, then the
device output is indeterminate and can either be Hi-Z or Low. If the field strength is greater than
BOP, then the output is pulled low. If the field strength is less than BRP, then the output is
released.
9.3 Output Stage
The CH44XP output stage uses an open-drain NMOS with a 10K ohm internal pull up resistor.
Select a value for C2 based on the system bandwidth specifications as shown in Equation 2.
(2)
Most applications do not require this C2 filtering capacitor.
9.4 Protection Circuits
The CH44XP device is fully protected against overcurrent and reverse-supply conditions.
9.5 Overcurrent Protection (OCP)
An analog current-limit circuit limits the current through the FET. The driver current is clamped to
IOCP. During this clamping, the rDS(on) of the output FET is increased from the nominal value.
9.6 Reverse Supply Protection
The CH44XP device is protected in the event that the VCC pin and the GND pin are reversed (up
to –22 V). There is 10K ohm resistor will conduct some small current at this case, but it will not
damage the device.
Page 9/15
Cosemitech
CHA44XP/CH44XP
Automotive Product Group
. This is advanced information on a new product now
in development or undergoing evaluation. Details are
subject to change without notice and Cosemitech
assumes no obligation for future manufacture of this
product. Contact Cosemitech for the latest status.
Preliminary Datasheet 1.0
9.7 Alternative Two-Wire Application
For systems that require minimal wire count, the device output can be connected to VCC
through a resistor, and the total supplied current can be sensed near the controller.
2-Wire Application
Current can be sensed using a shunt resistor or other circuitry.
Page 10/15
Cosemitech
CHA44XP/CH44XP
Automotive Product Group
This is advanced information on a new product now
in development or undergoing evaluation. Details are
subject to change without notice and Cosemitech assumes
no obligation for future manufacture of this product.
Contact Cosemitech for the latest status.
Preliminary Datasheet 1.0
10. Test Conditions
Note: DUT=Device Under Test
Page 11/15
Cosemitech
CHA44XP/CH44XP
Automotive Product Group
. This is advanced information on a new product now
in development or undergoing evaluation. Details are
subject to change without notice and Cosemitech
assumes no obligation for future manufacture of this
product. Contact Cosemitech for the latest status.
Preliminary Datasheet 1.0
11. Package Information:
Page 12/15
Cosemitech
CHA44XP/CH44XP
Automotive Product Group
This is advanced information on a new product now
in development or undergoing evaluation. Details are
subject to change without notice and Cosemitech assumes
no obligation for future manufacture of this product.
Contact Cosemitech for the latest status.
Preliminary Datasheet 1.0
Page 13/15
Cosemitech
CHA44XP/CH44XP
Automotive Product Group
. This is advanced information on a new product now
in development or undergoing evaluation. Details are
subject to change without notice and Cosemitech
assumes no obligation for future manufacture of this
product. Contact Cosemitech for the latest status.
Preliminary Datasheet 1.0
Page 14/15
Cosemitech
CHA44XP/CH44XP
Automotive Product Group
This is advanced information on a new product now
in development or undergoing evaluation. Details are
subject to change without notice and Cosemitech assumes
no obligation for future manufacture of this product.
Contact Cosemitech for the latest status.
Preliminary Datasheet 1.0
Information furnished is believed to be accurate and reliable. However, Cosemitech assumes no
responsibility for the consequences of use of such information nor for any infringement of patents or
other rights of third parties which may result from its use. No license is granted by implication or
otherwise under any patent or patent rights of Cosemitech. Specification mentioned in this publication
are subject to change without notice. This publication supersedes and replaces all information
previously supplied. Cosemitech products are not authorized for use as critical components in life
support devices or systems without express written approval of Cosemitech.
The Cosemitech logo is a registered trademark of Cosemitech
Page 15/15
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