5275 Datasheet, PDF (1/6 Pages) Allegro MicroSystems – COMPLEMENTARY OUTPUT POWER HALL LATCH

5275
5275 ^{COMPLEMENTARY OUTPUT}
POWERHALL^® LATCH
COMPLEMENTARY OUTPUT
POWER HALL^® LATCH
Type UGN5275K latching Hall-effect sensors are bipolar integrated
circuits designed for electronic commutation of brushless dc motors.
They feature open-collector complementary power outputs that are
capable of sinking up to 300 mA continuously. Increased current
T V
CC
DUC ^{Y 1}
2
3
4
PRO _E ^ONL _Dwg.PH-002
ED _{NC Pinning is shown viewed from branded side.}
ONTINUEFERE ^{ABSOLUTE MAXIMUM RATINGS}
at T_A = +25°C
C ^R _{Supply Voltage, VCC . . . . . . . . . . . . . . . 14 V}
IS ^{Magnetic Flux Density, B . . . . . . Unlimited}
R _{Output OFF Voltage, VCE . . . . . . . . . . . 60 V}
D ^O _{Output ON Current, IC}
F _{Continuous . . . . . . . . . . . . . . . . . 0.5 A}
Peak (Start Up) . . . . . . . . . . . . . . 0.9 A
— ^{Operating Temperature Range,}
ratings, complementary outputs, and sensitive switching points that are
stable over temperature and time ideally suit these devices for mini-
mum-component brushless dc motor designs.
Each sensor IC includes a Hall-voltage generator, an operational
amplifier, a Schmitt trigger, a voltage regulator, and large-area dual
npn-output transistors. The regulator allows the IC to operate with
supply voltages ranging from 4.5 V to 14 V. On-chip compensation
circuitry stabilizes switch point performance over temperature. The
large bipolar junction output transistors are fed by a unique driver
stage, which minimizes power dissipation within the IC. The magnetic
operation of this device is similar to that of the UGN3275K complemen-
tary-output Hall-effect latch.
Output Q of the IC switches to the LOW state when the internal
Hall generator experiences a magnetic field that exceeds the rated
operate point. Output Q switches HIGH within one µs of the Output Q
change of state. When the device is exposed to a sufficient magnetic
field of opposite polarity, Output Q returns to the HIGH state, and
Output Q returns to the LOW state.
The UGN5275K is rated for operation over a temperature range of
-20°C to +85°C, and is supplied in an environmentally rugged, four-pin
miniature plastic SIP. Consult the factory for alternate packaging and
custom magnetic requirements.
FEATURES
s High Sink-Current Capability
s Magnetic Sensing, Complementary-Output Latch
s On-Chip Schmitt Trigger Provides Hysteresis
s Temperature-Compensated Switch Points
s Rugged, Low-Profile SIP
T_A . . . . . . . . . . . . . . . . . -20°C to +85°C
Storage Temperature Range,
T_S . . . . . . . . . . . . . . . . -65°C to +150°C
Package Power Dissipation,
P_D . . . . . . . . . . . . . . . . . . . . . . 750 mW
Always order by complete part number: UGN5275K .