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HI-8150 Datasheet Preview

HI-8150 Datasheet

CMOS High Voltage Display Driver

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February 2017
HI-8050/51, HI-8150/51
CMOS High Voltage
Display Driver
GENERAL DESCRIPTION
The HI-8050, HI-8051, HI-8150 and HI-8151 are CMOS
integrated circuits designed for high voltage LCD display
drive applications. The HI-8050 & HI-8051 have TTL logic
inputs whereas the HI-8150 & HI-8151 have CMOS logic
inputs. They drive up to 38 segments at voltages between
+5 and -30 volts. The optional voltage converter on the
HI-8050 & HI-8150 can be used to generate the negative
display drive voltage. All products have test inputs to
facilitate opens and shorts testing as well as automatic
blanking of the display if the +5V power is lost.
The HI-8050 and HI-8150 are designed to replace the
HI-8010 and HI-8020 devices in all 5 volt applications. They
offer significantly enhanced ESD protection along with a
considerably faster serial input data rate.
The data is serially clocked into the device on the negative
edge of the clock and latched in parallel to the segment
outputs on the high to low transition of the load input. Serial
output data changes on the positive edge of the clock
allowing the cascading of multiple drivers for larger dis-
plays.
The device layout supports all previous pinouts of the
HI-8010/HI-8020 products. In addition, new technology
and features afford new packaging options. Consult your
Holt Sales Representative to explore the possibilities.
FEATURES
! 4 MHz serial input data rate
! 38 segment outputs
! Cascadable
! 5 Volt inputs translated to 35 Volts
! Test pins allow hardware all "ON", all "OFF" or
alternating
! Monitors 5 volt supply and forces all
segments to "OFF" condition if lost
! Negative voltage converter available on-chip
! CMOS low power
! Military processing available
APPLICATIONS
! Dichroic Liquid Crystal Displays
! Standard Liquid Crystal Displays
! 5 Volt Serial Data to Parallel High Voltage
! MEMS Drivers
PAD CONFIGURATION (Top View)
BPIN
BPOSC
VDD
N/C
CONVOSC
CONVOUT
VEE
S37
S38
S1
S2
S3
S4
S5
S6
S7
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
HI-8050PQI
HI-8150PQI
HI-8050PQT
&
HI-8150PQT
48 S27
47 S26
46 S25
45 S24
44 S23
43 S22
42 S21
41 S20
40 DOUT38
39 DOUT32
38 DOUT30
37 T2
36 T1
35 N/C
34 BPOUT
N/C
64 Pin plastic PQFP
(See page 6 for HI-8051 & HI-8151pin configurations)
FUNCTIONAL BLOCK DIAGRAM
DIN
CL
Þ
Þ
CS Þ
CONTROL
Þ8020OPT
LOGIC
LD Þ
ÞBPIN
ÞBPOSC
Oscillator
Divider
Voltage
Translator
DATA IN
38 Stage
Shift Register
CLK
DOUT38
ÞDOUT32
DOUT30
LE 3 8 B i t L a t c h
Voltage
Translators
High Voltage
Drivers
High Voltage
Buffer
ÞBPOUT 38 SEGMENTS
(DS8050, Rev. G)
HOLT INTEGRATED CIRCUITS
www.holtic.com
02/17




HOLTIC

HI-8150 Datasheet Preview

HI-8150 Datasheet

CMOS High Voltage Display Driver

No Preview Available !

HI-8050/51, HI-8150/51
PIN DESCRIPTION TABLE
SIGNAL
FUNCTION
DESCRIPTION
VSS
POWER 0 Volts
8020OPT LOGIC INPUT Open or high logic level selects the HI-8010/HI-8110 CL / CS logic. A low
selects the HI-8020/HI-8120 Logic (HI-8050 & HI-8150 only)
CS LOGIC INPUT Chip select - Active low
CL LOGIC INPUT Serial data input clock - Active low
LD LOGIC INPUT Latches data in shift register to the segment outputs - Active high
DIN LOGIC INPUT Serial input data to the shift register
BPIN
INPUT
Backplane frequency input. Either driven from an external source or connected
to BPOSC and an external resistor and capacitor.
BPOSC
OUTPUT Internal oscillator pin. Connected to BPIN and an external resistor and capacitor
VDD
POWER +5V ±5%, Positive voltage of the backplane and segments
CONVOSC
INPUT
Used in conjunction with CONVOUT to generate the negative VEE voltage
on-chip (HI-8050 & HI-8150 only).
CONVOUT
OUTPUT Used in conjunction with CONVOSC to generate the negative VEE voltage
on-chip (HI-8050 & HI-8150 only).
VEE
POWER Negative voltage of the backplane and segments - between VSS and VDD - 35V
S1 to S38
OUTPUT Segment outputs to LCD display
BPOUT
OUTPUT Backplane output to LCD display (See Figure 3 for cascading drivers)
T1 LOGIC INPUT Used in conjunction with T2 to control display mode. Normal mode is logic low.
T2 LOGIC INPUT Used in conjunction with T1 to control display mode. Normal mode is logic low.
DOUT30
OUTPUT Logic output from the 30th bit of the shift register. Use for pattern
verification or as the DIN of the next cascaded driver (HI-8050 & HI-8150 only).
DOUT32
OUTPUT Logic output from the 32nd bit of the shift register. Use for pattern
verification or as the DIN of the next cascaded driver (HI-8050 & HI-8150 only).
DOUT38
OUTPUT Logic output from the 38th bit of the shift register. Use for pattern
verification or as the DIN of the next cascaded driver.
HOLT INTEGRATED CIRCUITS
2


Part Number HI-8150
Description CMOS High Voltage Display Driver
Maker HOLTIC
Total Page 9 Pages
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