5817

5817 ADDRESSABLE 28-LINE DECODER/DRIVER 5817 ADDRESSABLE 28-LINE DECODER/DRIVER Intended for use in ink-jet printer applications, the A5817SEP addressable 28-line decoder/driver combines low-power CMOS inputs and logic with 28 high-current, high-voltage bipolar outputs. A 4-to-14 line decoder determines the selected output driver (n) in each 14-driver bank. Two independent output enable inputs (active low) then provide the final decoding to activate 1- or 2-of-28 outputs (OUTAn and/or OUTBn). Special internal circuitry is programmed at the time of manufacture to adjust the output pulse timing and thereby the energy the device delivers to the ink-jet print head. The CMOS inputs cause minimal loading and are compatible with standard CMOS, PMOS, and NMOS logic. Use with TTL or DTL circuits may require appropriate pull-up resistors to ensure an input logic high. The internal CMOS logic operates from a 5 V supply. A CHIP ENABLE function is provided to lock out the drivers during system power up. The 28 bipolar power outputs are open-collector 30 V Darlington drivers capable of sinking 500 mA at ambient temperatures up to 85°C. The A5817SEP is furnished in a 44-lead plastic chip carrier (quad pack) for minimum-area, surface-mount applications. Data Sheet 26186.20 OUTPUT ENABLE B LOGIC SUPPLY CHIP ENABLE IN D (MSB) GND 43 GND IN C IN B 42 41 IN A (LSB) OUT B0 OUTB1 OUTB2 OUTB3 OUTB4 OUTB5 OUTB6 OUTB7 OUTB8 OUTB9 GND IC 7 8 9 10 11 12 13 14 15 16 17 ABSOLUTE MAXIMUM RATINGS at TA = 25°C Output Voltage, VCE ............................. 30 V Logic Supply Voltage, VDD .................. 7.0 V Input Voltage Range, VIN ....................... -0.3 V to VDD + 0.3 V Output Current, IC ........................... 600 mA Package Power Dissipation, PD ..... 2.70 W* Operating Temperature Range, TA ................................. -20°C to +85°C Storage Temperature Range, TS .............................. -55°C to +150°C *Derate at rate of 22 mW/°C above TA = 25°C. Caution: CMOS devices have input static protection but are susceptible to damage when exposed to extremely high static electrical charges. ty cl un dO. ro e P P nc E d e 7S er1 u fe 8 in e 6 tRA nr oo y cF b s in d D e w lac op he SR 39 38 37 36 35 34 33 32 31 OUTA0 OUTA1 OUTA2 OUTA3 OUTA4 OUTA5 OUTA6 OUTA7 OUTA8 OUTA9 GND OUTPUT DRIVER BANK B 4-TO-14 LINE DECODER OUTPUT DRIVER BANK A V DD 44 40 6 5 4 3 2 1 OUTPUT ENABLE A 30 29 25 19 20 18 21 22 23 24 OUTB11 OUTB10 OUTB13 OUTA11 A13 26 OUT B12 OUTA12 A10 IC IC 27 OUT OUT NC 28 Dwg. PP-050 FEATURES s Controlled Characteristics for Ink-Jet Printers s Addressable Data Entry s 30 V Minimum V(BR)CEX s CMOS, PMOS, NMOS Compatible Inputs s Low-Power CMOS Logic Always order by complete part number: A5817SEP . 5817 ADDRESSABLE 28-LINE DECODER/DRIVER FUNCTIONAL BLOCK DIAGRAM OUTPUT ENABLE A OUTPUT ENABLE B OUT B11 OUT B12 OUTN LOGIC SUPPLY CHIP ENABLE IN D (MSB) IN A (LSB) IN B IN C TURN-ON DELAY 4-TO-14 LINE DECODER OUT A13 A2 OUT A12 A0 B0 OUT A1 OUT B1 B2 OUTA11 Dwg. FP-032 TYPICAL INPUT CIRCUIT VDD TYPICAL OUTPUT DRIVER IN Dwg. EP-021-7 Dwg. EP-010-1 115 Northeast Cutoff, Box 15036 Worcester, Massachusetts 01615-0036 (508) 853-5000 W Copyright © 1993, Allegro MicroSystems, Inc. OUTB13 OUT OUT OUT OUT TURN-ON DELAY 5817 ADDRESSABLE 28-LINE DECODER/DRIVER ELECTRICAL CHARACTERISTICS at TA = +25°C, VDD = 5.0 V. Limits Characteristic Output Drivers Output Leakage Current Output Saturation Voltage ICEX VCE(SAT) VCE = 30 V IOUT = 450 mA IOUT = 400 mA Output Breakdown Voltage Unclamped Inductive Load Current Turn-On Time Fall Time Turn-Off Time Rise Time Control Logic Logic Input Voltage VIN(1) VIN(0) Logic Input Current IIN(1) IIN(0) Input Resistance Supply Current RIN IDD(ON) IDD(OFF) Two Outputs ON All Drivers OFF, All Inputs = 0 V, OEA = OEB = VDD VIN = 5.0 V VIN = 0 V 3.5 — — — 50 — — — —