SH236 Datasheet, PDF (1/6 Pages) SeCoS Halbleitertechnologie GmbH – Hall Effect Latch Sink Driver IC

Elektronische Bauelemente
SH236
Complementary Output
Hall Effect Latch Sink Driver IC
RoHS Compliant Product
Description
The SH236 is an integrated Hall effect latched sensor with
output pull-high resistor driver designed for electronic co-
mmutation of brushless 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 re-
jection, and complementary 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 larger than threshold Bop, DO is turned on (low)
and DOB is turned off (high). The output state is held until a
magnetic flux density reversal falls below Brp causing DO to be
turned off and DOB turned on.SH236 is rated for operation over
temperature range from -20^oC to 85^oC and voltage range from
3.5V to 20V. The devices are available in low cost die forms or
rugged 4 pin SIP packages.
Features
* High Output Sinking Capability Up To 200mA For Driving Large Load
* Build In Protection Diode For Chip Reverse Power Connecting
* On-Chip Hall Sensor IC With Two Different Sensitivity And
Hysteresis Settings For SH236
* Lower Current Change Rate Reduces The Peak Output Voltage
During Switching
* Internal Bandgap Regulator Allows Temperature Compensated
Operations And A Wide Operating Voltage Range
* Package : SIP-4L
Applications
* Brushless DC Motor
* Speed Measurement
* Revolution Counting
* Brushless DC Fan
REF.
A
A1
b
b1
Millimeter
Min. Max.
1.295 1.803
0.610
0.330 0.432
0.406 0.508
REF.
D
E
L
e
Millimeter
Min. Max.
5.105
5.359
3.531
3.785
14
16
1.27REF
Pin Descriptions
http://www.SeCoSGmbH.com/
01-Jun-2002 Rev. A
Name
Vcc
DO
DOB
Vss
P/I/O
P
O
O
P
Pin# Description
1 Positive Power supply
2 Output Pin
3 Output Pin
4 Ground
Any changing of specification will not be informed individual
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