A6841
DABiC-5 8-Bit Serial Input Latched Sink Drivers
The 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
Package A
18-pin DIP
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 50V (35V sustaining).
All drivers can be operated with a split supply where the negative sup-
ply is up to –20V.
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 appli-
cations requiring additional drive lines.
Package LW
18-pin Wide Body SOIC
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 suffix ELW). These devices are lead (Pb) free, with 100%
matte tin plated leadframes.
Package LW-20
20-pin Wide Body SOIC
FEATURES
Schmitt trigger inputs for
improved noise immunity
3.3 V to 5Vlogic supply range
Power on reset (POR)
High-voltage current-sink outputs
Internal pull-up/pull down resistors
Output transient-protection diodes
Single or split supply operation
To 10 MHz data input rate
CMOS, TTL compatible inputs
–40°C operation available
ABSOLUTE MAXIMUM RATINGS
Output Voltage
VCE..............................................................50 V
CE(SUS)(for inductiove load applications) .......35 V
Logic Supply Voltage, VDD...................................7 V
Emitter Supply Voltage, VEE.............................–20 V
Input Voltage Range,VIN ..............–0.3VtoVDD +0.3V
Continuous Output Current (each output), IOUT ... 500 mA
Package Power Dissipation, PD, see chart, page 6
Operating Temperature Range
Low-power CMOS logic and latches
V
APPLICATIONS
Relays
Solenoids
Inductive loads
Use the following complete part numbers when ordering:
Part Number
A6841SA-T
A6841SLW-T
Package
18-pin DIP
18-pin wide body SOIC
20-pin wide body SOIC
(enhanced thermals)
18-pin wide body SOIC
Ambient
–20ºC to +85ºC
–20ºC to +85ºC
Ambient Temperature, TA............–20°C to +85°C
Storage Temperature, TS ..........–55°C to +150°C
A6841SLW-20-T
A6841ELW-T
–20ºC to +85ºC
–40ºC to +85ºC
–40ºC to +85ºC
Caution: CMOS devices have input-static protection,
but are susceptible to damage when exposed to
extremely high static-electrical charges.
20-pin wide body SOIC
(enhanced thermals)
A6841ELW-20-T
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