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| Philips Semiconductors Linear Products Product specification Vacuum fluorescent display driver NE/SA594 DESCRIPTION The NE/SA594 is a display driver interface for vacuum fluorescent displays. The device is comprised of 8 drivers and a bias network, and is capable of driving the digits and/or segments of most vacuum fluorescent displays. The inputs are designed to be compatible with TTL, DTL, NMOS, PMOS or CMOS output circuitry. There is an active pull-down circuit on each output so that display ghosting is minimized and no external components are required for most fluorescent display applications. PIN CONFIGURATIONS N, F Packages IN 1 IN 2 IN 3 IN 4 IN 5 IN 6 IN 7 IN 8 1 2 3 4 5 6 7 8 9 TOP VIEW 18 17 16 15 14 13 12 11 10 OUT 1 OUT 2 OUT 3 OUT 4 OUT 5 OUT 6 OUT 7 OUT 8 V+ FEATURES GND * Digit and/or segment drivers * Active output pull-down circuitry * High output breakdown voltage * Low supply voltage * Input compatible with all logic outputs APPLICATIONS D1 Package IN 1 IN 2 IN 3 IN 4 IN 5 IN 6 IN 7 IN 8 GND 1 2 3 4 5 6 7 8 9 20 19 18 17 16 15 14 13 12 11 OUT 1 OUT 2 OUT 3 OUT 4 OUT 5 OUT 6 OUT 7 OUT 8 V+ NC * Digital clocks * Dashboard displays * Panel displays NC 10 TOP VIEW NOTE: 1. SOL - Released in large SO package only. ORDERING INFORMATION DESCRIPTION 18-Pin Plastic DIP 18-Pin Ceramic DIP 20-Pin Plastic SO 18-Pin Plastic DIP 18-Pin Ceramic DIP 20-Pin Plastic SO TEMPERATURE RANGE 0 to +70C 0 to +70C 0 to +70C -40C to +85C -40C to +85C -40C to +85C ORDER CODE NE594N NE594F NE594D SA594N SA594F SA594D DWG # 0407A 0583A 0408B 0407A 0583A 0408B August 31, 1994 539 853-1045 13721 Philips Semiconductors Linear Products Product specification Vacuum fluorescent display driver NE/SA594 EQUIVALENT SCHEMATIC X8 R4 20K Q3 R5 4.5K D1 R1 IN VCC Q4 OUT R6 20K Q7 R9 150 K Q2 20K Q1 R2 20K R3 7.5K D2 Q5 R7 10K R8 10 K Q6 GND ABSOLUTE MAXIMUM RATINGS (at 25C, unless otherwise noted) SYMBOL VCC VOUT VIN IOUT Supply voltage Output voltage Input voltage Output current Each output All outputs Maximum power dissipation, TA=25C (still-air)1 PD F package N package D package Operating ambient temperature range TA TSTG TJ TSOLD NE594 SA594 Storage temperature range Maximum junction temperature Lead soldering temperature (10sec max) 0 to 70 -40 to +85 +65 to +150 -150 300 C C C C C 1500 1690 1390 mW mW mW 50 200 mA mA PARAMETER RATING 45 VCC -0.3, +20 V UNIT V NOTES: 1. Derate above 25C, at the following rates: F package at 12.0mW/C N package at 13.5mW/C D package at 11.1mW/C August 31, 1994 540 Philips Semiconductors Linear Products Product specification Vacuum fluorescent display driver NE/SA594 DC ELECTRICAL CHARACTERISTICS VCC=+4.75 to +40V, TA=0 to 70C (NE), TA= -40 to +85C (SA), unless otherwise stated. SYMBOL VCC ICCH ICCL VIN VIH VIL IIH IIL IIN PARAMETER Supply voltage range Supply current (all outputs high) Supply current (all outputs low) Input voltage range Input voltage to ensure logic "1' Input voltage to ensure logic "0' Input current to ensure logic "1' Input current to ensure logic "0' Input current VIN=2.6V VIN=5.0V VIN=15.0V VOH Output high voltage VIN=3.5V IOUT=-25mA VOUT with respect to VCC VOH Output high, no load voltage VIN=3.5V, IOUT=0, TA=25C, VOUT with respect to VCC VIN=0.8V, IOUT=0 VCC=35V, VIN=3.5V, VOUT=30V, TA=25C VCC=VOUT=35V, Inputs open TA=25C, VIN=0.4V VCC=40V, VOUT=0V -35 100 200 -1 -1 400 VCC -1 VCC -0.8 V TA=25C Over temp. VCC -1.5 VCC -2 60 180 .68 VCC -1.1 VCC -1.3 100 10 130 330 1.3 VCC=40V, VIN=3.5V VCC=40V, VIN=0.4V 0 2.6 0.8 TEST CONDITIONS LIMITS Min 4.75 Typ 35 3 0.4 Max 40 6 1 15 UNIT V mA mA V V V A A A A mA V V VOFF IOH IOUT ICEX Output `OFF' voltage level Available output current Output pull-down current Output leakage current 10 200 mV mA A A AC ELECTRICAL CHARACTERISTICS VCC=35V, TA=25C SYMBOL tPLH tPHL tR tF PARAMETER Propagation delay--low-to-high output transition Propagation delay--high-to-low output transition Output rise time Output fall time TEST CONDITIONS 50% VIN to 50% VOUT 50% VIN to 50% VOUT 10% VOUT to 90% VOUT 90% VOUT to 10% VOUT LIMITS Min Typ 1 3 0.5 1.5 Max 5 10 3 5 UNIT s s s s August 31, 1994 541 Philips Semiconductors Linear Products Product specification Vacuum fluorescent display driver NE/SA594 SWITCHING TIMES OF DRIVERS PRR 5V VIN 0 tPDLH 34V PRR 90% tPDLH VOUT 10% tF 50% 50% 10% 0V tR tF 90% Vcc = 35V VIN PRR = 10kHz tR = tF = (50ns) RL VOUT CL RL = 10k CL = 50pF Figure 1. Test Circuit August 31, 1994 542 Philips Semiconductors Linear Products Product specification Vacuum fluorescent display driver NE/SA594 TYPICAL PERFORMANCE CHARACTERISTICS IIN vs VIN 1000 5 ICCH vs Temperature 800 4 VCC = 40V 600 IIN (A) 400 ICCH (mA) 3 2 200 1 0 0 5 10 VIN (V) 15 20 0 -40 0 25 50 oC 85 TEMPERATURE Output Voltage vs Output Current VCC 5 ICC vs VCC (All inputs High) VCC -1 TA = VCC -2 VOUT (V) VCC -3 ICCH (mA) 4 25oC 3 2 TA = 25oC VCC -4 1 VCC -5 0 0 10 20 30 40 50 0 10 20 30 VCC (V) 40 50 IOUT (mA) August 31, 1994 543 Philips Semiconductors Linear Products Product specification Vacuum fluorescent display driver NE/SA594 2 78mG + 1N4002 40V RMS 0.47F R7 5.6K 1N914 4 R8 50K R9 15K DIMMER ADJUST + V + 16 TO + 40V 1 78 HV12 3 .1F 2 T1 10 MIN SET HOUR N.O. SET ALARM SET N.O. N.O. 22 11 12 18 19 13 14 17 25 3 4 2 26 8 7 1 ALARM OFF ALARM ENABLE N.C. SNOOZE Q1 2N222 N.O. +12V R1 100K 3 2 8 1/2 LM393 1 +12V R2 10K 15 23 24 9 27 5 6 28 MK 50250 R6 100 8 +12V R3 10K 1/2 LM393 4 9 8 76 543 2 7 6 5 R4 100K R5 1 MEG 987 +12V +V 6543 2 NE/SA594 +V 5.6 1W F A A A/P A C D 10 10 S I M M D S O S HR HR H L S S I E L E D D I9 IN 752 EEG GGI T GSGI E G G I T IE GL ID T 10 11 12 13 14 15 16 17 18 NE/SA594 10 11 12 13 14 15 16 17 18 ITRON JJA CLOCK DISPLAY Z, 5.6V C 10 1 C E G F B O MIN MIN S S S S S LDD EEEEE OI NG DI IT G I T I G I T GGGGG F I L T2 5.6 1W Figure 2. Typical Application: Digital Clock With Alarm August 31, 1994 544 |
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