A6833 Datasheet, PDF (1/7 Pages) Allegro MicroSystems – DABiC-5 32-Bit Serial Input Latched Sink Drivers

A6833
DABiC-5 32-Bit Serial Input Latched Sink Drivers
A6833SEP
44-pin PLCC
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Designed to reduce logic supply current, chip size, and system cost, the
A6833 integrated circuits offer high-speed operation for thermal print-
ers. These devices can also be used to drive multiplexed LED displays
or incandescent lamps within their 125 mA peak output current rating.
The combination of bipolar and MOS technologies gives the A6833
smart power ICs an interface flexibility beyond the reach of standard
buffers and power driver circuits.
These 32-bit drivers have bipolar open-collector npn Darlington out-
puts, a CMOS data latch for each of the drivers, a 32-bit CMOS shift
register, and CMOS control circuitry. The high-speed CMOS shift
registers and latches allow operation with most microprocessor-based
systems. Use of these drivers with TTL may require input pull-up resis-
tors to ensure an input logic high. CMOS serial data outputs permit
cascading for applications requiring additional drive lines.
The A6833 is supplied in a 44-lead plastic chip carrier (quad pack),
intended for surface mounting on solder lands with 0.050 in. (1.27 mm)
centers. These devices are lead (Pb) free, with 100% matte tin plated
leadframes.
ABSOLUTE MAXIMUM RATINGS
Output Voltage, V_OUT .........................................30 V
Logic Supply Voltage, V_DD...................................7 V
Input Voltage Range, V_IN ..............–0.3 V toV_DD+0.3 V
Continuous Output Current (each output), I_OUT ... 125 mA
Package Power Dissipation, P_D
A6833SA................................................ 3.5 W*
A6833SEP .............................................. 2.5 W*
Operating Temperature Range
Ambient Temperature, T_A ............–20°C to +85°C
Storage Temperature, T_S ..........–55°C to +150°C
*Derate linearly to 0 W at +150ºC.
Caution: CMOS devices have input-static protection,
but are susceptible to damage when exposed to
extremely high static-electrical charges.
FEATURES
„ 3.3 V to 5 V logic supply range
„ To 10 MHz data input rate
„ 30 V minimum output breakdown
„ Darlington current-sink outputs
„ Low-power CMOS logic and latches
„ Schmitt trigger inputs for improved noise immunity
APPLICATIONS
„ Thermal printheads
„ Multiplexed LED displays
„ Incandescent lamps
Use the following complete part numbers when ordering:
Part Number
Pins
Package
A6833SEP-T
44
PLCC