Transcript
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
