Maker : Allegro MicroSystems
Part No. : A6841

  Datasheet PDF : A6841.pdf
  Cross Reference : A6841 Cross Reference
  Buy Component : A6841 Find Stock and Price

Shortcut : A684  A6841 

Product Information

www.DataSheet4U.com Data Sheet 26185.114B 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 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 can be operated with a split supply where the negative supply is up to –20 V. Package LW 18-pin Wide Body SOIC 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 suffix ELW). These devices are lead (Pb) free, with 100% matte tin plated leadframes. Package A 18-pin DIP Package LW-20 20-pin Wide Body SOIC 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 operation ABSOLUTE MAXIMUM RATINGS Output Voltage VCE ..............................................................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. APPLICATIONS Relays Solenoids Inductive loads Use the following complete part numbers when ordering: Part Number A6841SA-T A6841SLW-T A6841SLW-20-T A6841ELW-T A6841ELW-20-T Package 18-pin DIP 18-pin wide body SOIC 20-pin wide body SOIC (enhanced thermals) 18-pin wide body SOIC 20-pin wide body SOIC (enhanced thermals) Ambient –20ºC to +85ºC –20ºC to +85ºC –20ºC to +85ºC –40ºC to +85ºC –40ºC to +85ºC www.DataSheet4U.com Data Sheet 26185.114B A6841 DABiC-5 8-Bit Serial Input Latched Sink Drivers Functional Block Diagram C LOC K S E R IAL DAT A IN LOG IC G R OUND V DD LOG IC S UP P LY S E R IAL DAT A OUT S T R OB E S E R IAL-P AR ALLE L S HIF T R E G IS T E R LAT C HE S OUT P UT E NAB LE (AC T IV E LOW) MOS B IP OLAR VE E or P OWE R G R OUND VE E or P OWE R G R OUND S UB OUT 1 OUT 2 OUT 3 OUT 4 OUT 5 OUT 6 OUT 7 OUT 8 K Typical Input Circuits VDD Typical Output Driver K OUT STROBE OUTPUT ENABLE VEE SUB VDD CLOCK SERIAL DATA IN www.allegromicro.com 115 Northeast Cutoff, Box 15036 Worcester, Massachusetts 01615-0036 (508) 853-5000 2 www.DataSheet4U.com Data Sheet 26185.114B A6841 DABiC-5 8-Bit Serial Input Latched Sink Drivers voltage Vdd = 3.0 V to 5.5 V Characteristic Output Leakage Current Output Sustaining Voltage Collector–Emitter Saturation Voltage Input Voltage Input Resistance Ser...

Link URL