Moteur de recherche de fiches techniques de composants électroniques
  French  ▼
ALLDATASHEET.FR

X  

CA3282AS2 Fiches technique(PDF) 5 Page - Intersil Corporation

No de pièce CA3282AS2
Description  Octal Low Side Power Driver with Serial Bus Control
Download  10 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Fabricant  INTERSIL [Intersil Corporation]
Site Internet  http://www.intersil.com/cda/home
Logo INTERSIL - Intersil Corporation

CA3282AS2 Fiches technique(HTML) 5 Page - Intersil Corporation

  CA3282AS2 Datasheet HTML 1Page - Intersil Corporation CA3282AS2 Datasheet HTML 2Page - Intersil Corporation CA3282AS2 Datasheet HTML 3Page - Intersil Corporation CA3282AS2 Datasheet HTML 4Page - Intersil Corporation CA3282AS2 Datasheet HTML 5Page - Intersil Corporation CA3282AS2 Datasheet HTML 6Page - Intersil Corporation CA3282AS2 Datasheet HTML 7Page - Intersil Corporation CA3282AS2 Datasheet HTML 8Page - Intersil Corporation CA3282AS2 Datasheet HTML 9Page - Intersil Corporation Next Button
Zoom Inzoom in Zoom Outzoom out
 5 / 10 page
background image
5
sensed by an out of saturation condition. A high on CE
forces MISO to a high impedance state. Also, when CE is
high, the octal driver ignores the SCK and MOSI signals.
SCK, MISO, MOSI - See Serial Peripheral Interface (SPI)
section in this data sheet.
VDD and VSS (GND) - Positive and negative power supply
lines.
Serial Peripheral Interface (SPI)
The Serial Peripheral Interface (SPI) utilized by the CA3282
is a serial synchronous bus for control and data transfers.
The Clock (SCK), which is generated by the microcomputer,
is active only during data transfers. In systems using
CDP68HC05 family microcomputers, the inactive clock
polarity is determined by the CPOL bit in the microcom-
puter’s control register. The CPOL bit is used in conjunction
with the clock phase bit, CPHA to produce the desired clock
data relationship between the microcomputer and octal
driver. The CPHA bit in general selects the clock edge which
captures data and allows it to change states. For the
CA3282, the CPOL bit must be set to a logic zero and the
CPHA bit to a logic one. Configured in this manner, MISO
(output) data will appear with every rising edge SCK, and
MOSI (input) data will be latched into the shift register with
every falling edge of SCK. Also, the steady state value of the
inactive serial clock, SCK, will be at a low level. Timing dia-
grams for the serial peripheral interface are shown in Figure 1.
SPI Signal Descriptions
MOSI (Master Out/Slave In) - Serial data input. Data bytes
are shifted in at this pin, most significant bit (MSB) first. The
data is passed directly to the shift register which in turn con-
trols the latches and output drivers. A logic “0” on this pin will
program the corresponding output to be ON, and a logic “1”
will turn it OFF.
MISO (Master In/Slave Out) - Serial data output. Data bytes
are shifted out at this pin, most significant bit (MSB) first.
This pin is the serial output from the shift register and is
three stated when CE is high. A high for a data bit on this pin
indicates that the corresponding output is high. A low on this
pin for a data bit indicates that the output is low. Comparing
the serial output bits with the previous input bits, the micro-
computer implements the diagnostic data supplied by the
CA3282.
SCK - Serial clock input. This signal clocks the shift register
SCK and new MOSI (input) data will be latched into the shift
register on every falling edge of SCK. The SCK phase bit,
CPHA, and polarity bit, CPOL, must be set to 1 and 0,
respectively in the microcomputer’s control register.
Functional Descriptions
The CA3282 is a low operating power, high voltage, high cur-
rent, octal power driver featuring eight channels of open
drain NDMOS output drivers. The drivers have low satura-
tion voltage and output short circuit protection, suited for
driving resistive or inductive loads such as lamps, relays and
solenoids. Data is transmitted to the device serially using the
Serial Peripheral Interface (SPI) protocol. Each channel is
independently controlled by an output latch and a common
RESET line that disables all eight outputs. Byte timing with
asynchronous reset is shown in Figure 4. The circuit
receives 8-bit serial data by means of the serial input
(MOSI), and stores this data in an internal register to control
the output drivers. The serial output (MISO) provides 8-bit
diagnostic data representing the voltage level at the driver
output. This allows the microcomputer to diagnose the con-
dition at the output drivers. The device is selected when the
chip enable (CE) line is low. When (CE) is high, the device is
deselected and the serial output (MISO) is placed in a three-
state mode. The device shifts serial data on the rising edge
of the serial clock (SCK), and latches data on the falling
edge. On the rising edge of chip enable (CE), new input data
from the shift register is latched in the output drivers. The
falling edge of chip enable (CE) transfers the output drivers
fault information back to the shift register. The output drivers
have low ON voltage at rated current, and are monitored by
a comparator for an out of saturation condition, in which
case the output driver with the fault becomes unlatched and
diagnostic data is sent to the microcomputer via the MISO
line. A typical microcomputer interface circuit is shown in
Figure 2. Also, the CA3282 may be cascaded with another
CA3282 octal driver.
Shift Register
The shift register has both serial and parallel inputs and out-
puts. Serial output and input data are simultaneously trans-
ferred to and from the SPI bus. The parallel outputs are
latched into the output latch in the CA3282 at the end of a
data transfer. The parallel inputs jam diagnostic data into the
shift register at the beginning of a data transfer cycle.
Output Latch
The output latch holds input data from the shift register
which is used to activate the outputs. The latch circuit may
be cleared by a fault condition (to protect the overloaded out-
puts), or by the RESET signal.
PORT
MOSI
MISO
SCK
MOSI
MISO
SCK
RESET
CDP68HC05C4
MICROCOMPUTER
CA3282
FIGURE 3. TYPICAL MICROCOMPUTER INTERFACE WITH
THE CA3282
CE
RESET
CA3282


Numéro de pièce similaire - CA3282AS2

FabricantNo de pièceFiches techniqueDescription
logo
Intersil Corporation
CA3280 INTERSIL-CA3280 Datasheet
286Kb / 10P
   Dual, 9MHz, Operational Transconductance Amplifier (OTA)
September 1998
CA3280 INTERSIL-CA3280 Datasheet
393Kb / 10P
   Dual, 9MHz, Operational Transconductance Amplifier (OTA)
logo
Renesas Technology Corp
CA3280 RENESAS-CA3280 Datasheet
644Kb / 10P
   Dual, 9MHz, Operational Transconductance Amplifier (OTA)
logo
Intersil Corporation
CA3280A INTERSIL-CA3280A Datasheet
286Kb / 10P
   Dual, 9MHz, Operational Transconductance Amplifier (OTA)
September 1998
CA3280A INTERSIL-CA3280A Datasheet
393Kb / 10P
   Dual, 9MHz, Operational Transconductance Amplifier (OTA)
More results

Description similaire - CA3282AS2

FabricantNo de pièceFiches techniqueDescription
logo
Intersil Corporation
HIP0051 INTERSIL-HIP0051 Datasheet
31Kb / 5P
   0.25A/50V Octal Low Side Power Driver with Serial Bus Control
logo
Renesas Technology Corp
HIP0051 RENESAS-HIP0051 Datasheet
396Kb / 6P
   0.25A/50V Octal Low Side Power Driver with Serial Bus Control
June 1996
logo
Intersil Corporation
HIP0045 INTERSIL-HIP0045 Datasheet
93Kb / 10P
   1A/50V Octal Low Side Power Driver With Serial Bus Control and Fault Protection
logo
Renesas Technology Corp
HIP0045 RENESAS-HIP0045 Datasheet
595Kb / 10P
   1A/50V Octal Low Side Power Driver With Serial Bus Control and Fault Protection
Apr 1999
logo
Intersil Corporation
HIP0050 INTERSIL-HIP0050 Datasheet
45Kb / 7P
   0.3A/50V Octal Low Side Power Driver with Serial Bus Control and Over-Current Fault Flag
logo
Renesas Technology Corp
HIP0060 RENESAS-HIP0060 Datasheet
437Kb / 7P
   1.5A, 50V Quad Low Side Power Driver with Serial Bus Control and Fault Protection
July 1997
logo
Intersil Corporation
HIP0060 INTERSIL-HIP0060 Datasheet
50Kb / 7P
   1.5A, 50V Quad Low Side Power Driver with Serial Bus Control and Fault Protection
logo
Renesas Technology Corp
HIP0050 RENESAS-HIP0050 Datasheet
456Kb / 7P
   0.3A/50V Octal Low Side Power Driver withSerial Bus Control and Over-Current Fault Flag
December 1996
logo
NXP Semiconductors
TJA1010 PHILIPS-TJA1010 Datasheet
105Kb / 16P
   Octal Low Side Driver OLSD
1998 Feb 09
logo
ON Semiconductor
NCV7240 ONSEMI-NCV7240_16 Datasheet
233Kb / 27P
   Octal Low-Side Relay Driver
September, 2016 ??Rev. 8
More results


Html Pages

1 2 3 4 5 6 7 8 9 10


Fiches technique Télécharger

Go To PDF Page


Lien URL




Politique de confidentialité
ALLDATASHEET.FR
ALLDATASHEET vous a-t-il été utile ?  [ DONATE ] 

À propos de Alldatasheet   |   Publicité   |   Contactez-nous   |   Politique de confidentialité   |   Echange de liens   |   Fabricants
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com