A1205
A1205 is Continuous-Time Bipolar Switch manufactured by Allegro MicroSystems.
FEATURES
AND BENEFITS
- AEC-Q100 automotive qualified
- Quality managed (QM)
- Ideal for applications that require pulsing VCC to conserve power
- Continuous-time operation
- Fast power-on time
- Low noise
- Stable operation over full operating temperature range
- Reverse battery protection
- Solid-state reliability
- Factory-programmed at end-of-line for optimum performance
- Robust EMC performance
- High ESD rating
- Regulator stability without a bypass capacitor
PACKAGES:
Not to scale
NOT FOR NEW DESIGN
3-pin SOT23W (suffix LH)
3-pin SIP, matrix HD style
(suffix UA)
3-pin SIP, chopper style
(suffix UA)
DESCRIPTION
The Allegro™ A1205 Hall-effect bipolar switch is a nextgeneration replacement and extension of the popular Allegro A3134 bipolar switch. The A1205 has identical specifications as the A1201 but is remended for applications that require pulsing VCC to conserve power. For standard applications, where VCC is constant, please refer to the A1201 through A1204 devices.
Overall, the A120x family, produced with Bi CMOS technology, consists of continuous-time devices that feature fast power-on time and low-noise operation. Device programming is performed after packaging to ensure increased switch point accuracy by eliminating offsets that can be induced by package stress. Unique Hall element geometries and low-offset amplifiers help to minimize noise and to reduce the residual offset voltage normally caused by device overmolding, temperature excursions, and thermal stress.
Continued on the next page…
TYPICAL APPLICATIONS
- Automotive
- Industrial motor/encoders
- Power closures/actuators
- mutation/index
- Electronic power steering sensing
- Seat/windows/sunroof
- BLDC motors motors
- Fan motors
- Trunk/door/liftgate motors
Regulator
To all...
