Rainbow-electronics ATA6827 Manuel d'utilisateur

Naviguer en ligne ou télécharger Manuel d'utilisateur pour Logiciel Rainbow-electronics ATA6827. Rainbow Electronics ATA6827 User Manual Manuel d'utilisatio

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Features
Supply Voltage up to 40V
R
DSon
Typically 0.8 at 25°C, Maximum 1.8 at 200°C
Up to 1.0A Output Current
Three Half-bridge Outputs Formed by Three High-side and Three Low-side Drivers
Capable to Switch all Kinds of Loads Such as DC Motors, Bulbs, Resistors, Capacitors
and Inductors
No Shoot-through Current
Outputs Short-circuit Protected
Overtemperature Protection for Each Switch and Overtemperature Prewarning
Undervoltage Protection
Various Diagnostic Functions Such as Shorted Output, Open-load, Overtemperature
and Power-supply Fail Detection
Serial Data Interface, Daisy Chain Capable, up to 2 MHz Clock Frequency
QFN18 Package
1. Description
The ATA6827 is a fully protected driver IC specially designed for high temperature
applications. In mechatronic solutions, for example turbo charger or exhaust gas recir-
culation systems, many flaps have to be controlled by DC motor driver ICs which are
located very close to the hot engine or actuator where ambient temperatures up to
150°C are usual. Due to the advantages of SOI technology junction temperatures up
to 200°C are allowed. This enables new cost effective board design possibilities to
achieve complex mechatronic solutions.
The ATA6827 is a fully protected Triple Half-Bridge to control up to 3 different loads by
a microcontroller in automotive and industrial applications. Each of the 3 high-side and
3 low-side drivers is capable to drive currents up to 1.0A. The drivers are internally
connected to form 3 half-bridges 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 especially supports the application of
H-bridges to drive DC motors.
Protection is guaranteed regarding short-circuit conditions, overtemperature and und-
ervoltage. Various diagnostic functions and a very low quiescent current in standby
mode opens a wide range of applications. Automotive qualification gives added value
and enhanced quality for exacting requirements of automotive applications.
High
Temperature
Triple
Half-bridge
Driver with
Serial Input
Control
ATA6827
Preliminary
4912C–AUTO–10/06
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Résumé du contenu

Page 1 - 1. Description

Features• Supply Voltage up to 40V• RDSon Typically 0.8Ω at 25°C, Maximum 1.8Ω at 200°C• Up to 1.0A Output Current• Three Half-bridge Outputs Formed b

Page 2

104912C–AUTO–10/06ATA6827 [Preliminary] 4.13High-side output switch on delay(1) VVS = 13V RLoad = 30Ωtdon20 µs A4.14Low-side output switch on delay(1)

Page 3

114912C–AUTO–10/06ATA6827 [Preliminary] 9. Serial Interface – TimingNo. Parameters Test Conditions Pin Timing Chart No.(1)Symbol Min. Typ. Max. Unit T

Page 4

124912C–AUTO–10/06ATA6827 [Preliminary] Figure 9-1. Serial Interface Timing with Chart Numbers 1DOCSCLKCSDOCLKOutput DO: High level = 0.8 × VCC, low l

Page 5

134912C–AUTO–10/06ATA6827 [Preliminary]10. Application CircuitFigure 10-1. Application Circuit 11. Application NotesIt is strongly recommended to conn

Page 6

144912C–AUTO–10/06ATA6827 [Preliminary] 13. Package Information 12. Ordering InformationExtended Type Number Package RemarksATA6827-PIQW QFN18, 4 mm ×

Page 7

Disclaimer: The information in this document is provided in connection with Atmel products. No license, express or implied, by estoppel or otherwise,

Page 8

24912C–AUTO–10/06ATA6827 [Preliminary] Figure 1-1. Block Diagram FaultdetectorFaultdetectorn.u.n.u.n.u.n.u.n.u.n.u.n.u.n.u.HS2LS2HS1LS1Controllogic5CL

Page 9

34912C–AUTO–10/06ATA6827 [Preliminary]2. Pin ConfigurationFigure 2-1. Pinning QFN18 OUT3SOUT3CSDICLKGNDOUT2VSVSVCCINHDOPGND3PGND1OUT1SOUT1FPGND2OUT2S1

Page 10 - ATA6827 [Preliminary]

44912C–AUTO–10/06ATA6827 [Preliminary] 3. Functional Description3.1 Serial Interface Data transfer starts with the falling edge of the CS signal. Data

Page 11

54912C–AUTO–10/06ATA6827 [Preliminary]Table 3-2. Output Data ProtocolBitOutput (Status) Register Function0 TP Temperature prewarning: high = warning1S

Page 12

64912C–AUTO–10/06ATA6827 [Preliminary] 3.2 Power-supply FailIn case of undervoltage at pin VS, the Power-Supply Fail bit (PSF) in the output register

Page 13

74912C–AUTO–10/06ATA6827 [Preliminary]4. Absolute Maximum RatingsStresses beyond those listed under “Absolute Maximum Ratings” may cause permanent dam

Page 14

84912C–AUTO–10/06ATA6827 [Preliminary] 7. Noise and Surge ImmunityParameters Test Conditions ValueConducted interferences ISO 7637-1 Level 4(1)Interfe

Page 15 - Regional Headquarters

94912C–AUTO–10/06ATA6827 [Preliminary]3.6Thermal shutdown hysteresis∆Tj switch off15 °C B3.7Ratio thermal shutdown off/thermal prewarning setTj switch

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