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32-Channel 256 Gray-Shade High Voltage Driver
Ordering Information
Package Option
Device 64-Lead 3-Sided Plastic Gullwing Die
HV62208 HV62208PG HV62208X
HV62208
Features
❏ HVCMOS® technology
❏ 5V CMOS inputs
❏ Up to 80V output voltage
❏ PWM gray shade conversion
❏ Capable of 256 levels of gray shading
❏ Balanced shift clock complies with RS-422
❏ 8MHz shift and count clock frequency
❏ 16MHz data throughput rate
❏ 8 bit data bus
❏ 32 outputs per device
❏ BLANK function
Absolute Maximum Ratings
Supply voltage, V
Supply voltage, V
Supply voltage, V
Logic input levels -0.5 to VDD + 0.5V
Continuous total power dissipation 1.2W
Operating temperature range -40°C to +85°C
Storage temperature range -65°C to +150°C
Notes:
All voltages are referenced to GND.
Maximum V
For operation above 25°C ambient derate linearly to 85°C at 20mW/°C.
PP
DD
PP
NN
to VNN voltage is 90V.
-0.5V to +7.5V
-0.5V to +80V
-15V to 0V
General Description
Not recommended for new designs. Please use HV632 instead.
The HV622 is a 32-channel gray-shade column driver IC designed for driving electrofluorescent displays. Using Supertex’s
unique HVCMOS
shading by PWM conversion.
The shift clock is a balanced clock with electrical characteristics
complying with EIA RS-422 standard. Input data, in groups of
eight, is latched into a set of data latches on both edges of the shift
clock. The data shifted in the first data latch corresponds to
1, the second data latch corresponds to HV
HV
OUT
These data are compared to the contents of the master binary
counter which counts on both edges of the count clock. Each time
the master counter begins to decrement from 1111 1111, the data
in the data latches are compared with the contents of the counter;
if they match, the corresponding outputs will go high. The master
counter counts down to 0000 0001 and then starts to count up
again. The outputs that are at high will stay at high until the
contents of the counter match the data in the data latches again.
Therefore, the higher the binary data in the data latches, the
longer the outputs will stay at high. Thus, different high voltage
pulse widths are produced. When the counter reaches its
1111 1111 count while counting up, the device is ready for the
next operation cycle. A data value of 0000 0000 produces no
pulse; the output stays low.
The BLANK input signal will reset the master counter to all ones
(1111 1111) and set all high voltage outputs to low.
®
technology, it is capable of 256 levels of gray
2, and so on.
OUT
02/96/022
Supertex Inc. does not recommend the use of its products in life support applications and will not knowingly sell its products for use in such applications unless it receives an adequate "products liability
indemnification insurance agreement." Supertex does not assume responsibility for use of devices described and limits its liability to the replacement of devices determined to be defective due to
workmanship. No responsibility is assumed for possible omissions or inaccuracies. Circuitry and specifications are subject to change without notice. For the latest product specifications, refer to the
Supertex website: http://www.supertex.com. For complete liability information on all Supertex products, refer to the most current databook or to the Legal/Disclaimer page on the Supertex website.
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Electrical Characteristics
(Over recommended conditions of VDD = 5V, VPP = 70V, VNN = -10V, TA = 25°C unless otherwise noted)
Low-Voltage DC Characteristics (Digital)
Symbol Parameter Min Max Units Conditions
V
DD
I
DD
I
DDQ
I
IH
I
IL
I
OH
I
OL
Low-Voltage DC Characteristics (Analog)
Symbol Parameter Min Max Units Conditions
V
DD
I
DD
I
DDQ
Low-voltage digital supply voltage 4.5 5.5 V
VDD supply current 25 mA fSC = 8MHz, fCC = 8MHz
Quiescent VDD supply current 100 µA All VIN = GND, Count Clock = V
High-level input current 10 µAVIN = V
DD
Low-level input current -10 µAVIL = GND
High-level output current -1.0 mA
Low-level ouptut current 1.0 mA
Low-voltage analog supply voltage 4.5 5.5 V
VDD supply current 100 µAfSC = 8MHz, fCC = 8MHz
Quiescent VDD supply current 100 µA All VIN = GND, Count Clock = V
HV62208
DD
DD
High-Voltage DC Characteristics
Symbol Parameter Min Max Units Conditions
I
PPQ
I
OUT(p)
I
OUT(n)
Quiescent VPP supply current 100 µA All HV
P-channel output current -4.0 mA
N-channel output current 4.0 mA
low or high
OUT
AC Characteristics
Symbol Parameter Min Max Units Conditions
f
SC
f
CC
f
DIN
t
CW
t
CSS
t
CSH
t
SCC
t
DSS
t
DSH
t
DW
t
LCW
t
CCW
t
CCC
t
LCD
t
CCD
t
BLW
t
BLD
t
CDD
Shift clock frequency 8.0 MHz
Count clock frequency 8.0 MHz
Data In frequency 16 MHz
Chip select pulse width 80 ns
Chip select to shift clock set-up time 15 ns
Chip select to shift clock hold time 45 ns
Shift clock cycle time 125 ns
Data to shift clock set-up time 10 ns
Data to shift clock hold time 52 ns
Data In pulse width 62 ns
Load count pulse width 75 ns
Count clock pulse width 62.5 ns
Count clock cycle time 125 ns
Load count to count clock delay 100 ns
Count clock to HV
turn-on/turn-off 600 ns CL = 15pF
OUT
BLANK pulse width 700 ns
BLANK to HV
delay 500 ns CL = 15pF
OUT
Count clock delay between count down and 500 ns
count up cycles
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Recommended Operating Conditions
Symbol Parameter Min Max Units Conditions
V
DD
V
PP
V
NN
V
IL
V
IH
f
SC
f
CC
T
A
Logic supply voltage 4.5 5.5 V
Positive high-voltage supply 12 70 V
Negative high-voltage supply -8 -10 V
Low-level input voltage 0 1 V
High-level input voltage VDD–1 V
DD
V
Shift clock frequency 8 MHz
Count clock frequency 8 MHz
Operating temperature -40 +85 °C
Pin Definitions
Pin # Name I/O Function
27-30 D1 – D8 I Inputs for binary-format parallel data
36-29 (D8 is the most significant bit)
34 Shift Clock I Triggers data on both edges
35 Shift Clock I Triggers data on both edges
31 Count Clock I Input to the counter
24 CSI I Chip select input to enable the device to accept data
25 CSO O Chip select output to enable the next device
33 Load Count I Input to initiate the counting
26 Blank I Input to reset the counter and HV
4-19 HV
OUT1
– HV
32 O High-voltage outputs
OUT
46-61
23,43 V
41 V
40 V
22,44 V
PP
(Analog) — Low-voltage analog supply voltage
DD
(Digital) — Low-voltage digital supply voltage
DD
NN
— Positive high-voltage supply
— Negative high-voltage supply
20-21 GND (Digital) — Digital ground
42 GND (Analog) Analog ground
OUT
HV62208
Input and Output Equivalent Circuits
V
V
DD
Input
GND
Logic Inputs
DD
GND
Logic Data Output
3
Data Out
V
PP
V
NN
High Voltage Output
HV
OUT
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Functional Block Diagram
HV62208
8 Bit
Data In
>
Latch 1
>
Latch 2
>
Latch 3
>
Latch 32
>
>
>
Data
Data
Data
≈
Data
Logic
V
L/T
L/T
L/T
L/T
Count
Clock
PP
V
NN
8
8
8
8
8
>
Comparator
& Latch 1
8
Comparator
& Latch 2
8
Comparator
& Latch 3
8
≈
≈≈≈
Comparator
& Latch 32
8
8 Bit
Counter
>
>
>
Logic
Logic
Logic
≈
Logic
>
V
PP
HV
1
OUT
2
HV
OUT
3
HV
OUT
•
•
•
32
HV
OUT
V
NN
+ –
Shift
Clock
Shift Clock
Timing Diagrams
CSI
Shift
Clock
CSO
LC
1234 16
CSOCSI
Load
Count
VALID DATA
≈
Blank
L/T = Level Translator
1234
VALID DATA
≈
16
Count
Clock
HV
OUT
≈
≈
4
11
11
≈≈
252 253 254 255255 254 253 252
252 253 254 255255 254 253 252
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Timing Diagrams
t
CW
DATA
SC1
t
t
CSH
DSH
50%
DATA
SET 2
50% 50%
CSI
Shift
Clock
Data
1–8
Load
Count
Count
Clock
t
CSS
50%
t
DSS
50%
SET 1
LOADING LAST DEVICE NEXT LOADING CYCLE
t
SCC
SC2 SC16 SC1 SCN
DATA
SET 3
t
DW
t
LCW
≈≈
≈
DATA
SET 31
DATA
SET 32
DATA
SET 1
DATA
SET 2
≈≈≈
≈
t
LCD
t
CCW
50%50% 50% 50%
t
CCC
≈
DATA
SET 2N -1
50%
DATA
SET 2N
HV62208
V
IH
V
IL
V
IH
V
IL
V
IH
V
IL
V
IH
V
IL
V
IH
V
IL
HV
OUT
BLANK
HV
OUT
Count
Clock
t
t
BLD
255 254
BLW
90%
≈
3 3221
t
CCD
90%
10% 10%
50%50%
≈
t
CCD
≈
t
CDD
50% 50%
1
90%
V
PP
V
NN
V
IH
V
IL
V
PP
V
NN
V
IH
V
IL
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HV62208
Pin Configurations
Pin Function
1 N/C
2 N/C
3 N/C
4HV
5HV
6HV
7HV
8HV
9HV
10 HV
11 H V
12 HV
13 HV
14 HV
15 HV
16 HV
17 HV
18 HV
19 HV
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
20 GND (Digital)
21 GND (Digital)
22 V
NN
23 V
PP
24 CSI
25 CSO
26 Blank
27 D1
28 D2
29 D3
30 D4
31 Count Clock
32 N/C
Pin Function
33 Load Count
34 Shift Clock
35 Shift Clock
36 D5
37 D6
38 D7
39 D8
40 V
41 V
42 GND (Analog)
43 V
44 V
45 N/C
46 HV
47 HV
48 HV
49 HV
50 HV
51 HV
52 HV
53 HV
54 HV
55 HV
56 HV
57 HV
58 HV
59 HV
60 HV
61 HV
62 N/C
63 N/C
64 N/C
(Digital)
DD
(Analog)
DD
PP
NN
1
OUT
2
OUT
3
OUT
4
OUT
5
OUT
6
OUT
7
OUT
8
OUT
9
OUT
10
OUT
11
OUT
12
OUT
13
OUT
14
OUT
15
OUT
16
OUT
Package Outline
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Index
24
25
top view
3-sided Plastic 64-pin Gullwing Package
40
64
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©2002 Supertex Inc. All rights reserved. Unauthorized use or reproduction prohibited.
02/06//02
1235 Bordeaux Drive, Sunnyvale, CA 94089
TEL: (408) 744-0100 • FAX: (408) 222-4895
6
www.supertex.com
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