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