Datasheet HV513 Datasheet (Supertex)

8-Channel Serial to Parallel Converter

with High Voltage Push-Pull Outputs,

POL, Hi-Z, and Short Circuit Detect

HV513

Features

❑ HVCMOS‚ technology

❑ Operating output voltage of 250V

❑ Low power level shifting from 5V to 250V

❑ Shift register speed 8MHz @ V

❑ 8 latch data outputs

❑ Output polarity and blanking

❑ CMOS compatible inputs

❑ Output short circuit detect

❑ Output high-Z control

DD

=5V

Applications

❏ Piezoelectric transducer driver

❏ Weaving applications

❏ Braille

❏ Printers

❏ MEMs

❏ Displays

Top Block Diagram

General Description

The HV513 is a low voltage serial to high voltage parallel converter with 8 high voltage push-pull outputs. This device has been designed to drive small capacitve loads such as piezoelectric transducers. It can also be used in any application requiring multiple high voltage outputs, with medium current source and sink capabilities.

The device consists of an 8-bit shift register, 8 latches, and control logic to perform the polarity select and blanking of the outputs. Data is shifted through the shift register on the low to high transition of the clock. A data output buffer is provided for cascading devices. Operation of the shift register is not affected by the /LE, /BL, /POL, or the /HI-Z control inputs. Transfer of data from the shift register to the latch occurs when the /LE is high. The data in the latch is stored when /LE is low. A high-Z, /HI-Z, pin is provided to set all the outputs in a high-Z state.

All outputs have short circuit protection that detects if the outputs have reached the required output state. If output does not track the required state, then the /SHORT pin will be low. This output will pulse low during the output transistion period under normal operation; see SC Timing Diagram for details.

All outputs will have a break-before-make circuitry to reduce cross-over current during output state changes.

Note: All logic control inputs have internal 20k-ohm pull-up resistors.

V

DD

D

IN

CLK

D

OUT

888

8-bit latch

8-bit shift register

LE* BL*

POL*

Hi-Z*

02/11/02

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.

Output control

V

GND

PP

•

Level translator

HV

OUT

HV

OUT

Short*

1

8

HV513

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Absolute Maximum Ratings*

Supply Voltage, V

DD

PP

Logic input levels -0.5V to VDD+0.5V

Ground current 0.3A

High voltage supply current 0.25A

Continuous total power dissipation 750mW

Operating temperature range -40°C to +85°C

Storage temperature range -65°C +150°C

* All voltages are referenced to device ground.

-0.5V to 6V

VDD to 275V

Ordering Information

Device Part Number Package

HV513 HV513WG 24 Lead SOW

2

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V

DD

V

PP

V

HI

V

LI

T

A

Notes:

1. Below minimum VPP the output may not switch.

2. Power-up sequence should be the following:

1. Connect ground.

2. Apply VDD.

3. Set all inputs (Data, CLK, Enable, etc.) to a known state.

4. Apply VPP.

Power-down sequence should be the reverse of the above.

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Input and Output Equivalent Circuits

HV513

DD

V

DD

20kΩ

Input

GND

Logic Inputs

*

POL, BL, LE, and HI-Z

V

DD

V

PP

*

GND

Logic Data Output

Data Out

HV

GND

High Voltage Outputs

HV

OUT

3

Switching Waveforms

CLK

Data Out

LE

50% 50%

t

WL

HV513

V

IH

Data Valid50% 50%Data Input

V

IL

t

SU

t

H

V

IH

t

50%

WH

50%

V

IL

V

OH

50%

V

OL

V

OH

V

OL

V

IH

V

IL

t

DLE

t

DLH

t

DHL

50%

t

WLE

50%

t

SLE

HV

OUT

w/ S/R LOW

HV

OUT

w/ S/R HIGH

Short Circuit Detect Detail Timing (HV513)

LE

POL

BL

Hi-Z

t

HI-Z

d

OFF

t

10%

d

ON

90%

V

10%

90%

H

L

IH

IL

OH

t

OF

OR

V

OH

V

OL

V

OH

V

OL

HV

OUT

Within

xV of rail

t

SD

t

SC

Short Detect

If the output is not within 5V to 10V of the desired output state, the SHORT signal goes LOW.

4

V

OL

V

H

V

L

Functional Block Diagram

POL

BL

CLK

8-Bit

Static

Shift

Register

8 Latches

HV

OUT

1

D

OUT

HV

OUT

8

D

IN

LE

HI-Z

Short

POL, BL, LE, and HI-Z have internal 20kΩ pull-up resistors.

Short Detect

6 Additional

Outputs

L/T

V

PP

HV513

Function Table

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H HHHH *…*H*…*H*

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8…21

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8..21

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5

Pin Configuration Package Outline

1

2

3

4

5

6

7

8

9

10

11

12

24

23

22

21

20

19

18

17

16

15

14

13

Pin Function

1 N/C

2V

3D

4BL

5 POL

6 CLK

7LE

8 SHORT

9 HI-Z

10 D

11 LGND

12 N/C

13 HVGND

14 HVGND

15 HV

16 HV

17 HV

18 HV

19 HV

20 HV

21 HV

22 HV

23 V

24 V

DD

OUT

IN

out

PP

24-Lead SOW Package (WG)

1

(Wide Body)

2

3

4

5

6

7

8

HV513

02/11/02

1235 Bordeaux Drive, Sunnyvale, CA 94089

TEL: (408) 744-0100 • FAX: (408) 222-4895

6

www.supertex.com