5818-F Datasheet, PDF (1/8 Pages) Allegro MicroSystems – BiMOS II 32-BIT SERIAL-INPUT, LATCHED SOURCE DRIVERS WITH ACTIVE-DMOS PULL-DOWNS

5818-F
BiMOS II 32-BIT SERIAL-INPUT, LATCHED
SOURCE DRIVERS WITH ACTIVE-DMOS PULL-DOWNS
UCN5818EPF
OUT29 7
8
9
10
11
12
13
14
15
16
OUT19 17
2
OUT 8
39 OUT 4
38
37
36
35
34
1393
32
31
30 OUT13
29 NC
Dwg. PP-059-2
ABSOLUTE MAXIMUM RATINGS
at T_A = 25°C
Logic Supply Voltage, V_DD .................... 15 V
Driver Supply Voltage, V_BB ................... 60 V
Continuous Output Current,
I_OUT ......................... -40 mA to +15 mA
Input Voltage Range,
V_IN ....................... -0.3 V to V_DD + 0.3 V
Package Power Dissipation, P_D
(UCN5818AF) ............................ 3.5 W*
(UCN5818EPF) ......................... 2.7 W†
Operating Temperature Range,
T_A ................................. -20°C to +85°C
Storage Temperature Range,
T_S ............................... -55°C to +150°C
* Derate at rate of 28 mW/°C above T_A = +25°C
† Derate at rate of 22 mW/°C above T_A = +25°C
Caution: CMOS devices have input static
protection but are susceptible to damage when
exposed to extremely high static electrical
charges.
Designed primarily for use with vacuum-fluorescent displays, the
UCN5818AF and UCN5818EPF smart power BiMOS II drivers combine
CMOS shift registers, data latches, and control circuitry, with bipolar high-
speed sourcing outputs and DMOS active pull-down circuitry. The high-
speed shift register and data latches allow direct interfacing with microproces-
sor LSI-based systems. A CMOS serial data output enables cascade connec-
tions in applications requiring additional drive lines. Both devices feature
60 V and -40 mA output ratings, allowing them to be used in many other
peripheral power driver applications.
These smart power drivers have been designed with BiMOS II logic for
improved data entry rates. With a 5 V supply, it will operate to at least 3.3
MHz. At 12 V, higher speeds are possible. Use of these devices with TTL
may require the use of appropriate pull-up resistors to ensure an input logic
high. All devices can be operated over the ambient temperature range of -
20°C to +85°C. The UCN5818AF is supplied in a 40-pin plastic dual in-line
package with 0.600" (15.24 mm) row spacing. A copper lead frame, reduced
supply current requirement, and low output saturation voltage permits
operation with minimum junction temperature rise. The ‘A’ package allows
all 32 outputs to be operated at -25 mA continuously over the operating
temperature range.
For high-density packaging applications, the UCN5818EPF is furnished
in a 44-lead plastic chip carrier (quad pack) for surface mounting on solder
lands with 0.050" (1.27 mm) centers. The PLCC allows -25 mA continuous
operation of all outputs simultaneously at ambient temperatures to 60°C.
Similar devices are available as the UCN5810AF/LWF (10 bits), UCN5811A
(12 bits), and UCN5812AF/EPF (20 bits).
FEATURES
I 60 V Source Outputs
I High-Speed Source Drivers
I To 3.3 MHz Data Input Rate
I Low-Output Saturation Voltages
I Active DMOS Pull-Downs
I Low-Power CMOS Logic
and Latches
I Reduced Supply Current
Requirements
I Improved Replacements for
SN75518N/FN
Always order by complete part number, e.g., UCN5818EPF .