Panasonic DN8799 3 v operation hall ic Datasheet

Hall ICs
DN8799MS
3 V operation Hall IC
■ Overview
0.40 +– 0.10
0.05
1.45
0.65 ± 0.15
Unit: mm
The DN8799MS is a 3 V operation Hall IC which
includes a Hall element, amplifier circuit, Schmidt circuit,
stabilized power supply and temperature compensation
circuit which are integrated on a single chip with a fine
patterning technology. The magnetic input signal is outputted by being converted to high or low. We have improved the conventional circuit to realize a stable operation covering from low to high supply voltage and from
low to high temperature.
0.16 +– 0.10
0.06
0.40 ± 0.20
5°
2
0.95
1.90 ± 0.20
2.90 –+ 0.20
0.05
0.65 ± 0.15
1
0.95
2.80 +– 0.20
0.30
1.50 +– 0.25
0.05
3
+ 0.20
0 to 0.1 1.10 – 0.10
■ Features
• Wide operating supply voltage range
(VCC = 2.7 V to 14.4 V)
• Wide operating ambient temperature (−40°C to +85°C)
• Package: Mini type (3-pin type)
(1.1 mm thick: Same as a standard transistor)
0.30
1.10 +– 0.10
10°
MINI-3D
■ Applications
• Cellular phone (detection of cover open/close), position sensor
2
VCC
■ Block Diagram
Constant
voltage source
Comparator
Hall element
GND
1
Out
Amplifier
3
1
DN8799MS
Hall ICs
■ Pin Descriptions
Pin No.
Symbol
Description
1
Out
Output pin
2
VCC
Supply voltage pin
3
GND
Ground pin
■ Absolute Maximum Ratings
Parameter
Symbol
Rating
Unit
VCC
18
V
VOUT
18
Supply current
ICC

mA
Power dissipation
PD
120
mW
Operating ambient temperature
Topr
−40 to +85
°C
Storage temperature
Tstg
−55 to +125
°C
Supply voltage
Note) 1. Except for the operating ambient temperature and storage temperature, all ratings are for Ta = 25°C.
2. The reverse insertion of this IC will cause its breakdown.
3. It will operate normally in several tens of ms after power on.
4. This IC is designed for a general use and if you want to use for an automotive use, please consult our staff of the nearby
sales office beforehand.
■ Recommended Operating Range
Parameter
Supply voltage
Symbol
Range
Unit
VCC
2.7 to 14.4
V
■ Electrical Characteristics at Ta = 25°C
Parameter
Symbol
Conditions
Min
Typ
Max
Unit
BH-L
VCC = 3 V
−20


mT
BL-H
VCC = 3 V


−3
mT
Hysteresis width
BW
VCC = 3 V
0.2
1.5
4.0
mT
Output voltage 1
VOL1
VCC = 14.4 V, IO = 5 mA, B = −20 mT

0.07
0.30
V
Output voltage 2
VOL2
VCC = 2.7 V, IO = 5 mA, B = −20 mT

0.07
0.30
V
Operating magnetic flux density 1
Operating magnetic flux density 2
*1
Output current
IOH
VCC = 2.7 V to 14.4 V
VO = 14.4 V, B = −3 mT


10
µA
Supply current 1
ICC1
VCC = 14.4 V, B = −3 mT
1.0
3.4
6.0
mA
Supply current 2
ICC2
VCC = 2.7 V, B = −3 mT
1.0
2.5
6.0
mA
Note) 1. Symbol BH-L stands for the operating magnetic flux density where its output level varies from high to low.
2. Symbol BL-H stands for the operating magnetic flux density where its output level varies from low to high.
3. The variation of operating magnetic flux density does not depend on supply voltage due to its built-in stabilized power
source. (VCC should be confined to the range of 2.7 V to 14.4 V.)
4. A supply current changes by maximum 1 mA when its output level varies from high to low.
5. *1: Classified by BH-L as listed right:
2
Rank
A
BH-L (mT)
≥ −15
Hall ICs
DN8799MS
■ Caution on use of Hall ICs
As the Hall IC is often used to detect movement, the position of a Hall IC may be changed, and there is the risk of
a change in detection level, if exposed to shock or vibration over a long period of time. Secure the IC by applying
adhesive to the package or placing in a dedicated case.
1. On mounting of the surface mount type (MINI-3D package)
When mounted on the printed circuit board, the Hall IC may be highly stressed by the warping that may occur from
soldering. This may also cause a change in the operating flux density characteristic and a deterioration of its resistance
to moisture.
2. On using flux in soldering
Choose a flux which does not include ingredients from halogen group, such as chlorine, fluorine, etc. The
ingredients of halogen group may enter where the lead frame and package resin joint, causing corrosion and the
disconnection of the aluminum wiring on the surface of an IC chip.
3. On fixing a Hall IC with the holder
When a Hall IC is mounted on the printed circuit board with a holder and the coefficient of expansion of the holder
is large, the lead wire of the Hall IC will be stretched and it may give a stress to the Hall IC.
If the lead wire is stressed intensely due to the distortion of holder or board, the adhesives between the package and
the lead wire may be weakened and cause a minute gap resulting in the deterioration of its resistance to moisture.
Sensitivity may also be changed by this stress.
4. Power supply line/power transmission line
If a power supply line/power transmission line becomes longer, noise and/or oscillation may be found on the line.
In this case, set the capacitor of 0.1 µF to 10 µF near a Hall IC to prevent it.
If a voltage of 18 V or more is thought to be applied to the power supply line (flyback voltage from coil or the ignition
pulse, etc.), avoid it with external components (capacitor, resistor, Zener diode, diode, surge absorbing elements, etc.).
5. VCC and GND
Do not reverse VCC and GND. If the VCC and GND pins are reversely connected, this IC will be destroyed. If the
IC GND-pin voltage is set higher than other pin voltage, the IC configuration will become same as a forward biased
diode. Therefore, it will turn on at the diode forward voltage (approximately 0.7 V), and a large current will flow through
the IC, ending up in its destruction. (This is common to Monolithic IC.)
6. Cautions on power ON of Hall IC
When a Hall IC is turned ON, the position of the magnet or looseness may change the output of a Hall IC, and a
pulse may be generated. Therefore, care should be given whenever the output state of a Hall IC is critical when the
supply power is ON.
3
DN8799MS
Hall ICs
■ Technical Data
• Position of a Hall element (unit in mm)
Distance from a package surface to sensor part: 0.71 mm
A Hall element is placed on the shaded part in the figure.
0.5
1.2
0.5
0.5
• Magneto-electro conversion characteristics
S
N
Direction of applied magnetic field
Output voltage
BL-H
BW
BH-L
Applied magnetic flux density B
4
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