Holt HI-8045 Cmos high voltage display driver Datasheet

HI-8045
CMOS High Voltage
Display Driver
March 2007
GENERAL DESCRIPTION
APPLICATIONS
S80
S79
S78
S77
S76
S75
S74
S73
S72
S71
S70
S69
S68
S67
S66
S65
S64
S63
S62
S61
S60
S59
S58
S57
S56
N/C
VSS
CS
CL
LD
DIN
BPOSC
N/C
N/C
BPIN
N/C
CONVOUT
VDD
DOUT 85
CONVOSC
VEE
T1
T2
BP
S1
S2
S3
S4
S5
S6
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
HI-8045PQ
80 - SEGMENT
100 - PIN
PLASTIC
QUAD FLAT PACK
75
74
73
72
71
70
69
68
67
66
65
64
63
62
61
60
59
58
57
56
55
54
53
52
51
S55
S54
S53
S52
S51
S50
S49
S48
S47
S46
S45
S44
S43
S42
S41
S40
S39
S38
S37
S36
S35
S34
S33
S32
S31
S7
S8
S9
S10
S11
S12
S13
S14
S15
S16
S17
S18
S19
S20
S21
S22
S23
S24
S25
S26
S27
S28
S29
S30
N/C
The die is metal mask programmable to provide for various
package and/or cascade tap options. Consult your Holt
Sales representative to explore the possibilities.
PIN CONFIGURATION (Top View)
99
98
97
96
95
94
93
92
91
90
89
88
87
86
85
84
83
82
81
80
79
78
77
76
The HI-8045 and the HI-80XX series of display drivers all
control segment information in the same way. Data is
serially clocked into the device and the data for all segment
outputs are latched in parallel when the Load input transitions from high to low. With the Data Out from the shift
register available, devices may be cascaded to obtain more
segment outputs. The shift register is 85 bits long.
! Dichroic Liquid Crystal Displays
! Standard Liquid Crystal Displays
! MEMS Drivers
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
The HI-8045 high voltage display driver is a low cost
plastic, 80-segment version of the Holt HI-8040 display
driver series. The 20 mil package lead pitch allows the
maximum number of display driver segments in the
smallest space.
An optional voltage converter can
generate the negative display drive voltage. Test inputs
facilitate opens and shorts testing. The backplane frequency is checked and, as long as power is available, the
segments are shut "Off" if the frequency becomes too low.
FEATURES
! 4 MHz serial input data rate
FUNCTIONAL BLOCK DIAGRAM
! 80 segment outputs
DIN
CL
Þ
Þ
! Test pins allow hardware all "ON", all "OFF" or
alternating
CS
Þ
! Monitors backplane oscillation and forces all
segments to "OFF" condition if below 10Hz
LD
! Negative voltage converter available on-chip
BPOSC
BPIN
! Cascadable
! 5 Volt inputs translated to 35 Volts
DATA IN
85 Stage
Shift Register
CLK
LE
Þ
Þ
Þ
! CMOS low power
! Industrial and JEDEC processing available
Oscillator
Divider
Vo l t a g e
Tr a n s l a t o r
DOUT
85
Þ
80 Bit Latch
Vo l t a g e
Tr a n s l a t o r s
H i g h Vo l t a g e
Drivers
H i g h Vo l t a g e
B u ff e r
Þ BP
(DS8045, Rev. E)
HOLT INTEGRATED CIRCUITS
www.holtic.com
80 SEGMENTS
03/07
HI-8045
FUNCTIONAL DESCRIPTION
INPUT LOGIC
DOUT
CS must be held low to enter data into the shift register.
The data is clocked on the negative edge of CL. LD is normally held low and only pulsed high when new data is
ready for display. When LD is high the latch is transparent.
All four logic inputs are TTL compatible. A logic "1" at DIN
that is eventually latched to the segment drivers will cause
the segment to be at the opposite voltage level of the BP
pin (out of phase).
The DOUT pin is available from segment 85 for cascading
devices to drive more segments and for verifying the data
integrity. However only the first 80 output segments are
available to the user. This output can drive 2 TTL loads. It
changes on the positive edge of CL.
BPOSC and BPIN
The user can either make an oscillator to create the
backplane frequency or drive an external clock into BPIN
leaving BPOSC open. To make an oscillator, pins BPOSC
and BPIN must be connected together and the appropriate
R and C combination applied (See Figure 1). If the oscillator is used, the backplane frequency is approximately
1
fBP =
(for R = 180KW & C = 220pF, fBP » 100Hz).
256 RC
VEE & NEGATIVE VOLTAGE CONVERTER
VEE may be externally driven to a maximum -30V. Alternatively, there is a voltage converter that will provide
-21.4 volts (See Figure 2). If the converter pins are left
open circuit, an on-chip sense resistor will cause shut
down of all current consumption associated with the converter. The converter will survive a shorted segment condition and continue to maintain VEE at -20 volts.
AUTOMATIC SEGMENTS OFF
The internal backplane signal is tested continuously to be at
least 10Hz. If the detector senses f<10Hz, then the segments
are forced to the same voltage as the backplane (all segments in "OFF" state). However, the detector is only functional while VDD is above the minimum operating voltage
specification.
TEST INPUTS
The test functions available are:
T2
0
0
1
1
T1
0
1
0
1
Display
Normal
All Off
All On
Alternating On/Off Segments
The test inputs must be tied to the appropriate logic level for
correct circuit operation.
VDD
R 330KW
C
R
CONVOSC
RSENSE
÷ 256
Control
VDD
Q
R
VSS
IN5818, IN5819
CONVOUT
BPIN
C
OSC
VDD
330µH
VSS
BPOSC
TO BACKPLANE
TRANSLATOR
AND DRIVER
VEE
10µF
VSS
Figure 1. INTERNAL OSCILLATOR CIRCUIT
Figure 2. OPTIONAL VOLTAGE CONVERTER
HOLT INTEGRATED CIRCUITS
2
HI-8045
LD
CL
CS
DIN
BP
CS CL LD
CS CL LD
CS CL LD
DIN
DO
DIN
DO
DIN
DO
BPIN
BP
BPIN
BP
BPIN
BP
1MW
1MW
1500pF
1µF
1µF
R
C
BPOSC
BPOSC
V
os
BPOSC
1MW
1MW
SEGMENTS
SEGMENTS BACK
PLANE
SEGMENTS
SEG
n
Figure 3. RC OSCILLATOR AND CASCADED
DEVICES
CL
INPUT
1µF
1µF
360pF
Figure 4. OFFSET MEASUREMENT
tCL
tCW
DIN
INPUT
tDS
tDH
CS
INPUT
tCSS
tLCS
tCSL
tCSH
LD
INPUT
tCDO
DOUT
OUTPUT
tLS
VALID
Figure 5. TIMING DIAGRAM
HOLT INTEGRATED CIRCUITS
3
tLW
HI-8045
ABSOLUTE MAXIMUM RATINGS
Voltages referenced to VSS = 0V
Supply Voltage
VDD........................ 0V to 7V
VEE................VDD-35V to 0V
Voltage at any input, except BPIN....-0.3 to VDD+0.3V
Voltage at BPIN input.................VDD-35 to VDD+0.3V
DC Current any input pin...................................10 mA
Power Dissipation......................................................300 mW
Operating Temperature Range - Industrial.......-40° to +85°C
Operating Temperature Range - Hi-Temp........-55° to +125°C
Storage Temperature Range............................-65° to +150°C
NOTE: Stresses above those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. These are stress ratings only.
Functional operation of the device at these or any other conditions above those indicated in the operational sections of the specifications is not implied.
Exposure to absolute maximum rating conditions for extended periods may affect device reliability.
DC ELECTRICAL CHARACTERISTICS
VDD = 5V ±5%, VEE = -21.5V, VSS = 0V, TA = Operating temperature range (unless otherwise specified).
PARAMETER
Operating Voltage
Supply Current:
SYMBOL
(Converter Off, fBP = 100Hz)
Input Low Voltage
Input High Voltage
Input Low Voltage
Input High Voltage
Input Current
Input Capacitance
(excluding BPIN)
(excluding BPIN)
(BPIN)
(BPIN)
(Guaranteed, not tested)
Segment Output Impedance
Backplane Output Impedance
Data Out Current:
Source Current
Sink Current
Voltage Converter:
@ No Load
(VDD - VSS = 5V, TA = 25°C)
@ 0.1mA Load
@ 10KW Load
Offset Voltage
(Guaranteed, not tested)
VDD
IDD
IEE
VIL
VIH
VILX
VIHX
IIN
CI
RSEG
RBP
IDOH
IDOL
VEEC
IDD
VEEC
VOS
CONDITION
MIN
TYP
3.0
Static, No Load
Static, No Load
300
0
2
VEE
0.8 VDD
VIN = 0 to 5V
IL = 10µA
IL = 10µA
VOH = 4.5
VOL = 0.4
See Fig. 2
See Fig. 2
See Fig. 2
See Fig. 4
3.2
-22
-21.5
MAX
UNITS
7.0
600
120
0.8
VDD
0.6 VDD
VDD
100
5
15,000
600
-3.0
25
V
µA
µA
V
V
V
V
nA
pF
W
W
mA
mA
V
mA
V
mV
MAX
UNITS
170
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
-21
1.8
-20
AC ELECTRICAL CHARACTERISTICS
VDD = 5V , VEE = -21.5V, VSS = 0V, TA = Operating temperature range (unless otherwise specified).
PARAMETER
Clock Period
Clock Pulse Width
Data In - Setup
Data In - Hold
Chip Select - Setup to Clock
Chip Select - Hold to Clock
Load - Setup to Clock
Chip Select - Setup to Load
Load Pulse Width
Chip Select - Hold to Load
Data Out Valid, from Clock
non-cascaded
cascaded
non-cascaded
cascaded
SYMBOL
VDD
MIN
tCL
tCL
tCW
tCW
tDS
tDH
tCSS
tCSH
tLS
tCSL
tLW
tLCS
tCDO
5V
5V
5V
5V
5V
5V
5V
5V
5V
5V
5V
5V
5V
250
500
125
250
80
80
100
120
120
0
130
120
HOLT INTEGRATED CIRCUITS
4
TYP
HI-8045
ORDERING INFORMATION
HI - 8045PQ xx
PART
NUMBER
TEMPERATURE
RANGE
FLOW
BURN
IN
LEAD
FINISH
Blank
-40°C TO +85°C
I
No
Tin / Lead (Sn / Pb) Solder
F
-40°C TO +85°C
I
No
100% Matte Tin (Pb-free, RoHS compliant)
T
-55°C TO +125°C
T
No
Tin / Lead (Sn / Pb) Solder
TF
-55°C TO +125°C
T
No
100% Matte Tin (Pb-free, RoHS compliant)
PART
NUMBER
PACKAGE
DESCRIPTION
HI-8045PQ
100-PIN PLASTIC QUAD FLAT PACK, PQFP (100PQS)
S80
S79
S78
S77
S76
S75
S74
S73
S72
S71
S70
S69
S68
S67
S66
S65
S64
S63
S62
S61
S60
S59
S58
S57
S56
PIN ASSIGNMENTS
HI-8045PQ
80 - SEGMENT
100 - PIN
PLASTIC
QUAD FLAT PACK
75
74
73
72
71
70
69
68
67
66
65
64
63
62
61
60
59
58
57
56
55
54
53
52
51
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
S7
S8
S9
S10
S11
S12
S13
S14
S15
S16
S17
S18
S19
S20
S21
S22
S23
S24
S25
S26
S27
S28
S29
S30
N/C
N/C
VSS
CS
CL
LD
DIN
BPOSC
N/C
N/C
BPIN
N/C
CONVOUT
VDD
DOUT 85
CONVOSC
VEE
T1
T2
BP
S1
S2
S3
S4
S5
S6
99
98
97
96
95
94
93
92
91
90
89
88
87
86
85
84
83
82
81
80
79
78
77
76
Pin 1
HOLT INTEGRATED CIRCUITS
5
S55
S54
S53
S52
S51
S50
S49
S48
S47
S46
S45
S44
S43
S42
S41
S40
S39
S38
S37
S36
S35
S34
S33
S32
S31
HI-8045 PACKAGE DIMENSIONS
inches (millimeters)
100-PIN PLASTIC QUAD FLAT PACK (PQFP)
Package Type: 100PQS
.0197 BSC
(0.50)
.630
BSC SQ
(16.0)
.551
BSC SQ
(14.0)
.009 ± .002
(.22 ± .05)
.024 ± .006
(.60 ± .15)
.039
typ
(1.0)
See Detail A
.059 ± .004
(1.50 ± .10)
.008 min
(0.20)
.008 R max
(0.20)
.055 ± .002
(1.40 ± .05)
BSC = “Basic Spacing between Centers”
is theoretical true position dimension and
has no tolerance. (JEDEC Standard 95)
0° £ Q £ 7°
.003 R min
(0.08)
HOLT INTEGRATED CIRCUITS
6
Detail A
Similar pages