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64-Channel Serial To Parallel Converter
With Open Drain Outputs
Ordering Information
Package Options
80-Lead Quad
Device Plastic Gullwing Die
HV3137 HV3137PG HV3137X
HV3137
Features
■ HVCMOS® technology
■ Output voltages up to 375V
■ Sink current minimum 1 mA
■ Shift register speed 6 MHz
■ Latched outputs
■ CMOS compatible inputs
■ Forward and reverse shifting options
Absolute Maximum Ratings
Supply voltage, V
Supply voltage, V
Logic input levels -0.5V to VDD +0.5V
Ground current
Continuous total power dissipation
Operating temperature range -40°C to +85°C
Storage temperature range -65°C to +150°C
Notes:
1. All voltages are referenced to GND.
2. For operation above 25°C ambient derate linearly by 20mW/°C up to 85°C.
DD
PP
2
2
1
-0.5V to +9V
-0.5V to +400V
0.75A
1200mW
General Description
The HV31 is a low voltage serial to high voltage parallel converter
with open drain outputs. It has been designed especially for use
as a driver for electrostatic printers.
This device consists of a 64-bit shift register, 64 latches, latch
enable (LE), and output enable (OE). Data is shifted through the
shift register on the high to low transition of the clock. When the
DIR pin is set high, the HV31 shifts in the counterclockwise
direction when viewed from the top of the package. When the DIR
pin is set low, the HV31 shifts in the clockwise direction. A serial
data output buffer is provided for cascading devices. This output
reflects the current status of the last bit of the shift register.
Operation of the shift register is not affected by the LE or the OE
inputs. Transfer of data from the shift register to the latch occurs
when the LE input is high. The data in the latch is stored when LE
is low.
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 operating conditions unless noted)
DC Characteristics
Symbol Parameter Min Typ Max Units Conditions
I
DD
I
DDQ
I
O(OFF)
I
IH
I
IL
V
OH
V
OL
VDD Supply Current 15 mA f
Quiescent VDD Supply Current 250 µA All VIN = 0V
Off State Output Current at 25°C, per Switch 100 nA Output high, and at 375V
High-Level Logic Input Current 10 µAVIH = V
Low-Level Logic Input Current -10 µAV
High-Level Data Out VDD -1V V ID
Low-Level Output HV
OUT
10 V IHV
Data Out 1 V ID
HV
V
OC
C
HVO
Clamp Voltage -3.0 V IOL = -1mA
OUT
Output Capacitance per Channel 3 pF VDS = 100V
AC Characteristics
Symbol Parameter Min Typ Max Units Conditions
f
CLK
t
W
t
SU
t
H
t
WLE
t
DLE
t
SLE
t
DHL
t
DLH
Clock Frequency 6 MHz
Clock Width High or Low 83 ns
Data Setup Time Before Clock Falls 35 ns
Data Hold Time After Clock Falls 15 ns
Width of Latch Enable Pulse 83 ns
LE Delay Time After Falling Edge of Clock 35 ns
LE Setup Time Before Falling Edge of Clock 40 ns
Clock Delay Time Data High to Low 135 ns
Clock Delay Time Data Low to High 135 ns
= 6MHz, f
CLK
LE = LOW
DD
= 0V
I
= -100µA
OUT
= +1mA
OUT
= +100µA
OUT
DATA
HV3137
= 3MHz
Recommended Operating Conditions
Symbol Parameter Min Typ Max Units
V
DD
HV
OUT
V
IH
V
IL
T
A
Notes:
Power-up sequence should be the following:
1. Connect ground.
2. Apply V
3. Set all inputs (Data, CLK, Enable, etc.) to a known state.
4. Apply V
Power-down sequence should be the reverse of the above.
DD
PP
.
.
Logic supply voltage 4.5 5 5.5 V
High voltage output 8.0 375 V
High-level input voltage 3.5 V
DD
Low-level input voltage 0 0.8 V
Operating free-air temperature -40 +85 °C
2
V
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Input and Output Equivalent Circuits
HV3137
V
DD
Input
GND
Logic Inputs
Switching Waveforms
Data
In
V
DD
GND
Data Valid 1
Logic Data Output
Data Out
HV
IN
High Voltage Outputs
Data Valid 2
HV
GND
OUT
Clock
Data
Out
Data
Out
Latch Enable
t
WH
t
SU
t
DLE
t
H
t
WL
t
DHL
t
DLH
t
WLE
t
SLE
3
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Functional Block Diagram
Output Enable
LE
Data Input
Clock
64 bit
Static Shift
Register
DIR
64 Latches
HV
1
OUT
2
HV
OUT
•
•
•
60 Additional
Outputs
•
•
•
HV
63
OUT
HV3137
Data Out
Function Table
Inputs Outputs
Function Data CLK LE OE DIR Shift Reg Latch HV
1 2 … 64 1 2 … 64 1 2 … 64
All off X X X L X *…**…* OFF…OFF *
Load S/R H or L ↓ LLH H or L…Qn → Qn+1 *…*
H or L ↓ LLL H or L…Qn → Qn-1 *…* OFF…OFF *
Load Latch X X H L X H or L…*H or L…* OFF…OFF *
Output Enable X H or L H H X H or L…*H or L…*
Transparent Latch
Mode
Notes:
X = Don’t care
* = Dependent on previous stage’s state before the last CLK : High to low transition.
↓ = High to low transition
H = High level
L = Low level
H ↓ HHX H…*H…* ON …* *
L ↓ HHX L …* L…* OFF…* *
OFF…OFF *
ON or OFF…* *
HV
OUT
OUT
64
D
OUT
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HV3137
65
80
1
24
25
40
41
64
Index
top view
80-pin Gullwing Package
Pin Configurations
PG and DG Packages
HV31
Pin Function Pin Function
1 GND
2 N/C
3HV
4HV
5HV
6HV
7HV
8HV
OUT
OUT
OUT
OUT
OUT
OUT
9 DIR
10 Data Out
11 CLK
12 GND
13 V
DD
14 LE
15 Data In
16 OE
17 HV
18 HV
19 HV
20 HV
21 HV
22 HV
OUT
OUT
OUT
OUT
OUT
OUT
23 N/C
24 HV
25 HV
26 HV
27 HV
28 HV
29 HV
30 HV
31 HV
32 HV
33 HV
34 HV
35 HV
36 HV
37 HV
38 HV
39 HV
40 HV
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
59/6
60/5
61/4
62/3
63/2
64/1
1/64
2/63
3/62
4/61
5/60
6/59
GND
7/58
8/57
9/56
10/55
11/54
12/53
13/52
14/51
15/50
16/49
17/48
18/47
19/46
20/45
21/44
22/43
41 N/C
42 N/C
43 HV
44 HV
45 HV
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 HV
63 N/C
64 N/C
65 HV
66 HV
67 HV
68 HV
69 HV
70 HV
71 HV
72 HV
73 HV
74 HV
75 HV
76 HV
77 HV
78 HV
79 HV
80 HV
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
Package Outline
23/42
24/41
25/40
26/39
27/38
28/37
29/36
30/35
31/34
32/33
33/32
34/31
35/30
36/29
37/28
38/27
39/26
40/25
41/24
42/23
43/22
44/21
45/20
46/19
47/18
48/17
49/16
50/15
51/14
52/13
53/12
54/11
55/10
56/9
57/8
58/7
OUT
OUT
6
59
Note:
Pin designation DIR = H/L
Example: For DIR = H, Pin 3 is HV
©2002 Supertex Inc. All rights reserved. Unauthorized use or reproduction prohibited.
For DIR = L, Pin 3 is HV
02/06//02
1235 Bordeaux Drive, Sunnyvale, CA 94089
TEL: (408) 744-0100 • FAX: (408) 222-4895
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www.supertex.com
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