Features: `3.3 V to 5 V logic supply range
`Power on reset (POR)
`To 10 MHz data input rate
`CMOS, TTL compatible inputs
`40°C operation available
`Low-power CMOS logic and latches
`Schmitt trigger inputs for improved noise immunity
`High-voltage current-sink outputs
`Internal pull-up/pull down resistors
`Output transient-protection diodes
`Single or split supply operationApplication·Relays
·Solenoids
·Inductive loadsPinout
SpecificationsOutput VoltageVCE........................................................50 V
VCE(SUS) (for inductiove load applications) .................35 V
Logic Supply Voltage, VDD...............................................7 V
Emitter Supply Voltage, VEE.......................................20 V
Input Voltage Range, VIN ..................0.3 V to VDD +0.3 V
Continuous Output Current (each output), IOUT ... 500 mA
Package Power Dissipation, PD, see chart, page 6
Operating Temperature Range
Ambient Temperature, TA........................20°C to +85°C
Storage Temperature, TS ......................55°C to +150°C
Caution: CMOS devices have input-static protection, but are susceptible to damage when exposed to extremely high static-electrical charges.
DescriptionThe merging of low-power CMOS logic and bipolar output power drivers permit the A6841 integrated circuits to be used in a wide variety of peripheral power driver applications. Each device has an eight-bit CMOS shift register and CMOS control circuitry, eight CMOS data latches, and eight bipolar current-sinking Darlington output drivers.
The 500 mA NPN Darlington outputs, with integral transient-suppression diodes, are suitable for use with relays, solenoids, and other inductive loads. All package variations of the A6841 offer premium performance with a minimum output-breakdown voltage rating of 50 V (35 V sustaining).
All drivers A6841 can be operated with a split supply where the negative supply is up to 20 V. The CMOS inputs are compatible with standard CMOS logic levels. TTL circuits may require the use of appropriate pull-up resistors. By using the serial data output, drivers can be cascaded for interface applications requiring additional drive lines.
The A6841SA devices are furnished in a standard 18-pin plastic DIP. The A6841SLW device is available in an 18-lead SOIC package. A 20-pin SOIC version, A6841SLW-20 has improved thermal characteristics. The SOIC drivers are also available for operation to a temperature of 40°C (part number suffi x ELW). These devices are lead (Pb) free, with 100% matte tin plated leadframes.
A6841 Data Sheet
