Document
Supertex inc.
HV5408B
32-Channel Serial to Parallel Converter With High Voltage Push-Pull Outputs
Features
►► Processed with HVCMOS® technology ►► Low power level shifting ►► SOURCE/SINK current minimum 20mA ►► Shift register speed 8.0MHz ►► Latched data outputs ►► CMOS compatible inputs ►► Forward and reverse shifting options ►► Diode to VPP allows efficient power recovery
General Description
The HV5408B is a low voltage serial to high voltage parallel converter with push-pull outputs. This device has been designed for use as a driver for AC-electroluminescent displays. It can also be used in any application requiring multiple output high voltage current sourcing and sinking capabilities, such as driving plasma panels, vacuum fluorescent, or large matrix LCD displays.
The HV5408B consists of a 32-bit shift register, 32 latches, and control logic to enable outputs. Q1 is connected to the first stage of the shift register through the Output Enable logic. Data is shifted through the shift register on the low to high transition of the clock. When viewed from the top of the package, the HV5408B shifts in the counter-clockwise direction. A data output buffer is provided for cascading devices. This output reflects the current status of the last bit of the shift register (32). Operation of the shift register is not affected by the LE (latch enable) or the OE (output enable) inputs. Transfer of data from the shift register to the latch occurs when the LE input is high. The data in the latch is retained when LE is low.
Typical Application Circuit
VDD
DATA INPUT
CLK Low Voltage
Micro Processor
LE OE
Shift Register Latches
Output Contr.
VPP
High Voltage Level
Translators &
Push-Pull Output Buffers
DATA OUT
Supertex HV5408B
Data Input for cascading the next HV5408B
HVOUT1 HVOUT32
Columns
Display Panel
Row Driver
Supertex inc. ● 1235 Bordeaux Drive, Sunnyvale, CA 94089 ● Tel: 408-222-8888 ● www.supertex.com
HV5408B
Ordering Information
Device
44-Lead Quad Cerpac
.650x.650in body .190in height (max)
.050in pitch
HV5408B
HV5408DJ-B*
-G indicates package is RoHS compliant (‘Green’). * Hi-Rel process flow available.
Package Options 44-Lead PQFP
10.00x10.00mm body 2.35mm height (max)
0.80mm pitch
HV5408PG-B-G
Absolute Maximum Ratings
Parameter
Value
Supply voltage, VDD
Supply voltage, VPP
Logic input levels
Ground current1
Continuous total power dissipation2 Plastic Ceramic
Operating temperature range Plastic Ceramic
-0.5V to +16V -0.5V to +90V -0.5V to VDD +0.5V
1.5A
1200mW 1500mW
-40OC to +85OC -55OC to +125OC
Storage temperature range
-65OC to +150OC
Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these conditions is not implied. Continuous operation of the device at the absolute rating level may affect device reliability. All voltages are referenced to device ground. Notes:
1. Duty cycle is limited by the total power dissipated in the package. 2. For operation above 25°C ambient derate linearly to maximum
operating temperature at 20mW/°C for plastic and at 15mW/°C for ceramic.
44-Lead PLCC
.653x.653in body .180in height (max)
.050in pitch
HV5408PJ-B-G
Pin Configurations 6 1 44 40
44-Lead Quad Cerpac (DJ)
(top view)
44 1
44-Lead PQFP (PG)
(top view)
6 1 44 40
44-Lead PLCC (PJ)
(top view)
Product Marking
Top Marking
YYWW
HV5408DJ-B LLLLLLLLLL
YY = Year Sealed WW = Week Sealed
L = Lot Number Bottom Marking C = Country of Origin*
CCCCCCCCCCC AAA
A = Assembler ID*
*May be part of top marking
44-Lead Quad Cerpac (DJ)
Top Marking
YYWW HV5408PG-B LLLLLLLLL
Bottom Marking
CCCCCCCC AAA
YY = Year Sealed WW = Week Sealed L = Lot Number C = Country of Origin* A = Assembler ID*
= “Green” Packaging
*May be part of top marking
44-Lead PQFP (PG)
Packages may or may not include the following marks: Si or
Top Marking
YY = Year Sealed
YYWW AAA HV5408PJ-B
WW = Week Sealed
LLLLLLLLLL L = Lot Number
Bottom
Marking
A C
= =
Assembler Country of
ID Origin*
= “Green” Packaging
CCCCCCCCCCC *May be part of top marking
44-Lead PLCC (PJ)
Supertex inc. ● 1235 Bordeaux Drive, Sunnyvale, CA 94089 ● Tel: 408-222-8888 ● www.supertex.com
2
HV5408B
Recommended Operating Conditions (over -40°C to 85°C for plastic and -55°C to 125°C for ceramic)
Sym
Parameter
Min Max Units
VDD Logic voltage supply VPP High voltage supply VIH Input high voltage VIL Input low voltage fCLK Clock frequency
10.8 8.0 VDD - 2.0 0 0
13.2 80 VDD 2.0 8.0
V V V V MHz
Power-Up Sequence
Power-up sequence should be the following:
1. Connect ground
2. 3.
ASpept layllVinDpD uts (Data, CLK, LE, etc.) to a known state
4. Apply VPP 5. The VPP should not fall below VDD or float during operation.
Power-down sequence should be the reverse of the above.
Electrical Characteristics (VPP = 60V, VDD = 12V, TA = 25°C)
DC Characteristics
Sym Parameter
Min Max
IPP IDDQ IDD VOH (data) VOL (data) IIH IIL VOC VOH VOL VOH VOL
VPP supply current IDD supply curr.