900,000+ datasheet pdf search and download

Datasheet4U offers most rated semiconductors data sheet pdf






Allegro

UCN5812AF Datasheet Preview

UCN5812AF Datasheet

BiMOS II 20-BIT SERIAL-INPUT / LATCHED SOURCE DRIVERS

No Preview Available !

5812-F
BiMOS II 20-BIT SERIAL-INPUT, LATCHED
SOURCE DRIVERS WITH ACTIVE-DMOS PULL-DOWNS
UCN5812EPF
The UCN5812AF/EPF combine a 20-bit CMOS shift register, data
latches, and control circuitry with high-voltage bipolar source drivers and
active DMOS pull-downs for reduced supply current requirements. Although
designed primarily for vacuum-fluorescent displays, the high-voltage, high-
current outputs also allow them to be used in other peripheral power driver
applications. They are improved versions of the original UCN5812A/EP.
OUT18 5
6
7
N 128
IG 89
610
S AOUT12 11
25 OUT 2
24
23
22
21
20
19 OUT8
DE nt Dwg.PP-059-1
W eABSOLUTE MAXIMUM RATINGS
mat TA = 25°C
NE ceLogic Supply Voltage, VDD ..................... 15 V
laDriver Supply Voltage, VBB .................... 60 V
Continuous Output Current Range,
R pIOUT ................................. -40 to +15 mA
O reInput Voltage Range,
VIN ........................ -0.3 V to VDD + 0.3 V
F dPackage Power Dissipation, PD
e(UCN5812AF) ........................... 3.12 W*
T d(UCN5812EPF) ........................1.84 W†
nOperating Temperature Range,
O eTA .................................. -20°C to +85°C
Storage Temperature Range,
N mTS ................................ -55°C to +150°C
m* Derate at rate of 22 mW/°C above TA = +25°C
o† Derate at rate of 15 mW/°C above TA = +25°C
cCaution: Allegro CMOS devices have input static
eprotection but are susceptible to damage when
Rexposed to extremely high static electrical
The CMOS shift register and latches allow direct interfacing with
microprocessor-based systems. With a 5 V supply, they will operate to at
least 3.3 MHz. At 12 V, higher speeds are possible. Especially useful for
inter-digit blanking, the BLANKING input disables the output source drives
and turns on the DMOS sink drivers. Use with TTL may require the use of
appropriate pull-up resistors to ensure an input logic high.
A CMOS serial data output enables cascade connections in applications
requiring additional drive lines. Similar devices are available as the
UCN5810AF/LWF (10 bits), UCN5811A (12 bits), and UCN5818AF/EPF
(32 bits).
The output source drivers are high-voltage pnp-npn Darlingtons with a
minimum breakdown of 60 V and are capable of sourcing up to 40 mA. The
DMOS active pull-downs are capable of sinking up to 15 mA.
The UCN5812AF is supplied in a 28-pin dual in-line plastic package with
0.600" (15.24 mm) row spacing. For surface mounting, the UCN5812EPF is
furnished in 28-lead plastic chip carrier (quad pack) with 0.050"(1.22 mm)
centers. Copper lead-frames, reduced supply current requirements and lower
output saturation voltages, allow continuous operation, with all outputs
sourcing 25 mA, of the UCN5812AF over the operating temperature range,
and the UCN5812EPF up to +75°C. All devices are also available for opera-
tion between -40°C and +85°C. To order, change the prefix from ‘UCN’ to
‘UCQ’.
FEATURES
s High-Speed Source Drivers
s 60 V Source Outputs
s Active DMOS Pull-Downs
s Reduced Supply Current
charges.
s To 3.3 MHz Data Input Rate
Requirements
Note that the UCN5812AF (dual in-line package)
s Low Output-Saturation Voltages
s Improved Replacement
and UCN5812EPF (PLCC package) are electri-
cally identical and share a common terminal
s Low-Power CMOS Logic and Latches for TL5812
number assignment.
Always order by complete part number, e.g., UCN5812AF .




Allegro

UCN5812AF Datasheet Preview

UCN5812AF Datasheet

BiMOS II 20-BIT SERIAL-INPUT / LATCHED SOURCE DRIVERS

No Preview Available !

5812-F
20-BIT SERIAL-INPUT,
LATCHED SOURCE DRIVERS
WITH ACTIVE-DMOS PULL-DOWNS
UCN5812AF
FUNCTIONAL BLOCK DIAGRAM
LOAD
SUPPLY
1
VBB
SERIAL
DATA OUT
2
OUT20 3
OUT19 4
OUT18 5
OUT 17 6
OUT 16 7
OUT15 8
OUT14 9
OUT13 10
OUT12 11
OUT11 12
BLANKING 13 BLNK
GROUND 14
VDD
28
LOGIC
SUPPLY
27
SERIAL
DATA IN
26 OUT 1
25 OUT 2
24 OUT 3
23 OUT 4
22 OUT5
21 OUT 6
20 OUT7
19 OUT8
18 OUT9
17 OUT 10
ST 2186 STROBE
CLK 2175 CLOCK
Dwg. PP-029-7
CLOCK
SERIAL
DATA IN
STROBE
BLANKING
GROUND
SERIAL-PARALLEL SHIFT REGISTER
LATCHES
V DD
LOGIC
SUPPLY
SERIAL
DATA OUT
OUT 1 OUT 2 OUT 3
MOS
BIPOLAR
VBB
LOAD
SUPPLY
OUT N
Dwg. FP-013-1
TYPICAL INPUT CIRCUIT
VDD
IN
TYPICAL OUTPUT DRIVER
V BB
OUT N
Dwg. EP-010-5
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000
Copyright © 1988, 2000 Allegro MicroSystems, Inc.
Dwg. No. A-14,219


Part Number UCN5812AF
Description BiMOS II 20-BIT SERIAL-INPUT / LATCHED SOURCE DRIVERS
Maker Allegro
PDF Download

UCN5812AF Datasheet PDF






Similar Datasheet

1 UCN5812AF BiMOS II 20-BIT SERIAL-INPUT / LATCHED SOURCE DRIVERS
Allegro





Part Number Start With

0    1    2    3    4    5    6    7    8    9    A    B    C    D    E    F    G    H    I    J    K    L    M    N    O    P    Q    R    S    T    U    V    W    X    Y    Z



Site map

Webmaste! click here

Contact us

Buy Components

Privacy Policy