A1202 and A1203 Continuous-Time Bipolar Switch Family
FEATURES AND BENEFITS
• AEC-Q100 automotive qualified • Continu...
A1202 and A1203 Continuous-Time Bipolar Switch Family
FEATURES AND BENEFITS
AEC-Q100 automotive qualified 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
3-pin SOT23W (suffix LH)
NOT FOR NEW DESIGN
3-pin SIP, matrix HD style
(suffix UA)
3-pin SIP, chopper style
(suffix UA)
DESCRIPTION
The Allegro™ A1202 and A1203 Hall-effect bipolar switches are next-generation replacements and extension of the popular Allegro A3133 andA3132 bipolar switch product line. Overall, theA120x family, produced with BiCMOS 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 switchpoint 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.
TheA120x Hall-effect bipolar switches include the following on a single silicon chip: voltage
regulator, Hall-voltage generator, small-signal amplifier, Schmitt trigger, and NMOS output
transistor. The integrated vol...