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PDF T6817 Data sheet ( Hoja de datos )
| Número de pieza | T6817 | |
| Descripción | Dual Triple DMOS Output Driver | |
| Fabricantes | ATMEL Corporation | |
| Logotipo |  |
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Dual Triple DMOS Output Driver
with Serial Input Control T6817
1. Introduction
The T6817 is a fully-protected universal driver interface designed in 0.8-µm BCDMOS
technology. It is used to control up to 6 different loads by a microcontroller in automo-
tive and industrial applications.
Each of the 3 high-side and 3 low-side drivers is capable of driving currents up to
600 mA. The drivers are freely configurable and can be controlled separately from a
standard serial data interface. Therefore, all kinds of loads such as bulbs, resistors,
capacitors, and inductors can be combined. The IC design particularly supports appli-
cations of H-bridges to drive DC motors.
Protection against short-circuit conditions, overtemperature, under- and overvoltage is
implemented. Various diagnostic functions and a very low quiescent current in
standby mode enable a wide range of applications. Automotive qualification with
respect to conducted interferences, EMC and 2-kV ESD protection gives added value
and enhanced quality for the demands of highly-sophistwiwcwa.DtaetadSheaet4pUp.colmications.
T6817
Driver ICs
Application Note
2. Development Board
The development board includes the following components:
• T6817 design software
• Link cable to PC 25-lead 1:1
• Application note
• Datasheet “T6817: Dual Triple DMOS Output Driver with Serial Input Control”
2.1 Description
By means of the PC-controlled development board, a user can adapt the loads (see
Figure 2-2 on page 3) easily via row connector pins. The design software interface
controls the development board.
Rev. 4783B–AUTO–11/05
1 page  
Figure 2-5. ATAB6817 Basic Application Board Bottom Side, Top View (as if PCB were transparent)
T6817
4783B–AUTO–11/05
5
5 Page 
T6817
4.2 Parallel Operation of Several T6817s
In applications with a high number of loads, a straightforward parallel operation of the T6817 via
the microcontroller is possible.
Separate control of the T6817's serial data interface is provided by chip select pins CS1 - CS4
(for the function of the serial data interface, please refer to the datasheet).
For simultaneous operation of the serial data interfaces (that is, CS1 through CS4 are active at
the same time), each of the data outputs (DO) needs to communicate with a dedicated micro-
controller input pin.
Figure 4-2. Parallel Operation with Microcontroller and Watchdog
VCC
U5021M
Watchdog
Enable
INH
T6817
Micro-
controller
CS1
CS2
CS3
CS4
DI
DO
CLK
VCC
CS DI DO CLK
INH
T6817
CS DI DO CLK
INH
T6817
INH
T6817
CS DI DO CLK
CS DI DO CLK
4783B–AUTO–11/05
11
11 Page | ||
| Páginas | Total 19 Páginas | |
| PDF Descargar | [ Datasheet T6817.PDF ] | |
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