UCN5821LW

5821 BiMOS II 8-BIT SERIAL-INPUT, LATCHED DRIVERS 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 and UCN5821LW each have an eight-bit CMOS shift register and CMOS control circuitry, eight CMOS data latches, and eight bipolar current-sinking Darlington output drivers. 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 UCN5821A are furnished in a standard 16-pin plastic DIP; the UCN5821LW 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’. Data Sheet 26185.12F CLOCK SERIAL DATA IN LOGIC GROUND LOGIC SUPPLY SERIAL DATA OUT STROBE OUTPUT ENABLE POWER GROUND 1 2 3 4 5 6 7 8 CLK 16 15 OUT 1 OUT 2 OUT 3 OUT 4 OUT 5 OUT 6 OUT 7 OUT 8 SHIFT REGISTER 14 LATCHES VDD 13 12 11 10 9 ST OE SUB Dwg. PP-026A Note the DIP package and the SOIC package are electrically identical and share common terminal number assignments. ABSOLUTE MAXIMUM RATINGS at 25°C Free-Air Temperature Output Voltage, VOUT ..................... 50 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. FEATURES s To 3.3 MHz Data Input Rate s CMOS, NMOS, TTL Compatible s Internal Pull-Down Resistors s Low-Power CMOS Logic & Latches s High-Voltage Current-Sink Outputs s Automotive Capable Always order by complete part number, e.g., UCN5821A . www.allegromicro.com 5821 8-BIT SERIAL-INPUT, LATCHED DRIVERS TYPICAL INPUT CIRCUITS V DD CLOCK SERIAL DATA IN LOGIC GROUND 1 FUNCTIONAL BLOCK DIAGRAM VDD 4 LOGIC SUPPLY SERIAL DATA OUT STROBE OUTPUT ENABLE (ACTIVE LOW) 2 SERIAL-PARALLEL SHIFT REGISTER 5 3 LATCHES 6 IN 7 STROBE & OUTPUT ENABLE 16 15 14 13 12 11 10 9 MOS BIPOLAR 8 POWER GROUND Dwg. FP-013A SUB OUT 1 OUT 2 OUT 3 OUT 4 OUT 5 OUT 6 OUT 7 OUT 8 Dwg. EP-010-3 NOTE — There is an indeterminate resistance between logic ground and power ground. For proper operation, these terminals must be externally connected together. VDD CLOCK & SERIAL DATA IN IN Number of Outputs ON (IOUT = 200 mA VDD = 12 V) 8 7 6 5 4 3 2 1 UCN5821A Max. Allowable Duty Cycle at Ambient Temperature of 25°C 40°C 50°C 60°C 70°C 90% 100% 100% 100% 100% 100% 100% 100% 79% 90% 100% 100% 100% 100% 100% 100% 72% 82% 96% 100% 100% 100% 100% 100% 65% 74% 86% 100% 100% 100% 100% 100% 57% 65% 76% 91% 100% 100% 100% 100% Dwg. EP-010-4A TYPICAL OUTPUT DRIVER OUT Number of Outputs ON (IOUT = 200 mA VDD = 12 V) 8 7 6 5 4 3 2 1 UCN5821LW Max. Allowable Duty Cycle at Ambient Temperature of 25°C 40°C 50°C 60°C 70°C 67% 77% 90% 100% 100% 100% 100% 100% 59% 68% 79% 95% 100% 100% 100% 100% 54% 62% 72% 86% 100% 100% 100% 100% 49% 56% 65% 78% 98% 100% 100% 100% 43% 49% 57% 68% 86% 100% 100% 100% 7.2K 3K SUB Dwg. No. A-14,314 115 Northeast Cutoff, Box 15036 Worcester, Massachusetts 01615-0036 (508) 853-5000 Copyright © 1985, 2004 Allegro MicroSystems, Inc. 5821 8-BIT SERIAL-INPUT, LATCHED DRIVERS ELECTRICAL CHARACTERISTICS at TA = +25°C, VDD = 5 V (unless otherwise specified). Limits Characteristic Output Leakage Current Collector-Emitter Saturation Voltage VCE(SAT) Symbol ICEX VOUT = 50 V VOUT = 50 V, TA = +70°C IOUT = 100 mA IOUT = 200 mA IOUT = 350 mA, VDD = 7.0 V Input Voltage VIN(0) VIN(1) VDD = 12 V VDD = 5.0 V Input Resistance rIN VDD = 12 V VDD = 5.0 V Supply Current IDD(ON) One Driver ON, VDD = 12 V One Driver ON, VDD = 10 V One Driver ON, VDD = 5.0 V IDD(OFF) VDD = 5.0 V, All Drivers OFF, All Inputs = 0 V VDD = 12 V, All Drivers OFF, All Inputs = 0 V Test Conditions Min. — — — — — — 10.5 3.5 50 50 — — — — — Max. 50 100 1.1 1.3 1.6 0.8 — — — — 4.5 3.9 2.4 1.6 2.9 Units µA µA V V V V V V kΩ kΩ mA mA mA mA mA www.allegromicro.com 5821 8-BIT SERIAL-INPUT, LATCHED DRIVERS Serial Data present at the input is transferred to the shift register on the logic “0” to logic “1” transition of the CLOCK input pulse. On succeeding CLOCK pulses, the registers shift data information towards the SERIAL DATA OUTPUT. The SERIAL DATA must appear at the input prior to the rising edge of the CLOCK input waveform. G CLOCK A B DATA IN E C STROBE F D OUTPUT ENABLE OUT N Dwg. No. A-12,627 (VDD = 5.0 V, TA = +25°C, Logic Levels are VDD and Ground) A. Minimum Data Active Time Before Clock Pulse (Data Set-Up Time) ....................................................................... 75 ns B. Minimum Data Active Time After Clock Pulse (Data Hold Time) ........................................................................... 75 ns C. Minimum Data Pulse Width .............................................................. 150 ns D. Minimum Clock Pulse Width ............................................................ 150 ns E. F. Minimum Time Between Clock Activation and Strobe ....................... 30 ns Minimum Strobe Pulse Width ........................................................... 100 ns TIMING CONDITIONS Information present at any register is transferred to its respective latch when the STROBE is high (serial-to-parallel conversion). The latches will continue to accept new data as long as the STROBE is held high. Applications where the latches are bypassed (STROBE tied high) will require that the ENABLE input be high during serial data entry. When the ENABLE input is high, all of the output buffers are disabled (OFF) without affecting the information stored in the latches or shift register. With the ENABLE input low, the outputs are controlled by the state of the latches. G. Typical Time Between Strobe Activation and Output Transition .......................................................................... 1.0 µs TRUTH TABLE Serial Shift Register Contents Data Clock Input Input I1 I2 I3 .............. I8 H L X H L R1 R2 .............. R7 R1 R2 .............. R7 X X .............. X Serial Data Strobe Output Input R7 R7 R8 X P8 L H R1 R2 R3 .............. R8 P1 P2 P3 .............. P8 X L = Low Logic Level H = High Logic Level X = Irrelevant X X .............. X L H P1 P2 P3 .............. H H H .............. P8 H Latch Contents I1 I2 I3 .............. I8 Output Enable Output Contents I1 I2 I3 .............. I8 R1 R2 R3 .............. R8 X P1 P2 P3 .............. P8 P = Present State R = Previous State 115 Northeast Cutoff, Box 15036 Worcester, Massachusetts 01615-0036 (508) 853-5000 5821 8-BIT SERIAL-INPUT, LATCHED DRIVERS UCN5821A Dimensions in Inches (controlling dimensions) 16 9 0.014 0.008 0.430 0.280 0.240 MAX 0.300 BSC 1 0.070 0.045 0.100 0.775 0.735 BSC 8 0.005 MIN 0.210 MAX 0.015 MIN 0.150 0.115 0.022 0.014 Dwg. MA-001-16A in Dimensions in Millimeters (for reference only) 16 9 0.355 0.204 10.92 7.11 6.10 MAX 7.62 BSC 1 1.77 1.15 2.54 19.68 18.67 BSC 8 0.13 MIN 5.33 MAX 0.39 MIN 3.81 2.93 0.558 0.356 Dwg. MA-001-16A mm NOTES: 1. Lead thickness is measured at seating plane or below. 2. Lead spacing tolerance is non-cumulative. 3. Exact body and lead configuration at vendor’s option within limits shown. www.allegromicro.com 5821 8-BIT SERIAL-INPUT, LATCHED DRIVERS UCN5821LW Dimensions in Inches (for reference only) 16 9 0.0125 0.0091 0.2992 0.2914 0.419 0.394 0.050 0.016 0.020 0.013 1 2 3 0.4133 0.3977 0.050 BSC 0° TO 8° 0.0926 0.1043 0.0040 MIN. Dwg. MA-008-16A in Dimensions in Millimeters (controlling dimensions) 16 9 0.32 0.23 7.60 7.40 10.65 10.00 1.27 0.40 0.51 0.33 1 2 3 10.50 10.10 1.27 BSC 0° TO 8° 2.65 2.35 0.10 MIN. Dwg. MA-008-16A mm NOTES: 1. Lead spacing tolerance is non-cumulative. 2. Exact body and lead configuration at vendor’s option within limits shown. 115 Northeast Cutoff, Box 15036 Worcester, Massachusetts 01615-0036 (508) 853-5000 5821 8-BIT SERIAL-INPUT, LATCHED DRIVERS The products described here are manufactured under one or more U.S. patents or U.S. patents pending. Allegro MicroSystems, Inc. reserves the right to make, from time to time, such departures from the detail specifications as may be required to permit improvements in the performance, reliability, or manufacturability of its products. Before placing an order, the user is cautioned to verify that the information being relied upon is current. Allegro products are not authorized for use as critical components in life-support devices or systems without express written approval. The information included herein is believed to be accurate and reliable. However, Allegro MicroSystems, Inc. assumes no responsibility for its use; nor for any infringement of patents or other rights of third parties which may result from its use. www.allegromicro.com