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UCN5821LW Datasheet(PDF) 1 Page - Allegro MicroSystems |
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UCN5821LW Datasheet(HTML) 1 Page - Allegro MicroSystems |
1 / 8 page 2 3 4 5 6 7 8 SERIAL DATA OUT SERIAL DATA IN OUTPUT ENABLE LOGIC SUPPLY STROBE LOGIC GROUND CLOCK CLK V ST OE DD 1 SUB POWER GROUND 9 10 11 12 13 14 15 16 OUT 1 OUT2 OUT 3 Dwg. PP-026A OUT8 OUT7 OUT6 OUT5 OUT4 BiMOS II 8-BIT SERIAL-INPUT, LATCHED DRIVERS Always order by complete part number, e.g., UCN5821A . 5821 AND 5822 Note the DIP package and the SOIC package are electrically identical and share common terminal number assignments. A merged combination of bipolar and MOS technology gives these devices an interface flexibility beyond the reach of standard logic buffers and power driver arrays. The UCN5821A, UCN5821LW, UCN5822A, and UCN5822LW each have an eight-bit CMOS shift register and CMOS control circuitry, eight CMOS data latches, and eight bipolar current-sinking Darlington output drivers. The UCN5821A/LW and UCN5822A/LW are identical except for rated output voltage. BiMOS II devices have much higher data-input rates than the original BiMOS circuits. With a 5 V logic supply, they will typically operate at better than 5 MHz. With a 12 V supply, significantly higher speeds are obtained. The CMOS inputs are compatible with standard CMOS and NMOS logic levels. TTL circuits may require the use of appropriate pull-up resistors. By using the serial data output, the drivers can be cascaded for interface applications requiring additional drive lines. The UCN5821/22A are furnished in a standard 16-pin plastic DIP; the UCN5821/22LW are in a 16-lead wide-body SOIC for surface-mount applications. The UCN5821A is also available for operation from -40 °C to +85°C. To order, change the prefix from ‘UCN’ to ‘UCQ’. FEATURES I To 3.3 MHz Data Input Rate I CMOS, NMOS, TTL Compatible I Internal Pull-Down Resistors I Low-Power CMOS Logic & Latches I High-Voltage Current-Sink Outputs I Automotive Capable ABSOLUTE MAXIMUM RATINGS at 25 °C Free-Air Temperature Output Voltage, VOUT UCN5821A & UCN5821LW ..... 50 V UCN5822A & UCN5822LW ..... 80 V Logic Supply Voltage, VDD ............. 15 V Input Voltage Range, VIN .................. -0.3 V to VDD + 0.3 V Continuous Output Current, IOUT ..................................... 500 mA Package Power Dissipation, PD Package Code ‘A’ .................. 2.1 W Package Code ‘LW’ ............... 1.5 W Operating Temperature Range, TA ............................ -20 °C to +85°C Storage Temperature Range, 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. www.allegromicro.com |
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