ATA6834-DK Atmel, ATA6834-DK Datasheet - Page 12

• Manufacturer Part Number: ATA6834-DK
• Description: BOARD BLDC MOTOR CTRL ATA6833/34
• Manufacturer: Atmel
• Type: MOSFET & Power Driverr

Specifications of ATA6834-DK

• Main Purpose: Power Management, Motor Control
• Embedded: Yes, MCU, 8-Bit
• Utilized Ic / Part: ATA6833 / ATA6834, ATmega32M1
• Primary Attributes: 3-Ph BLDC, IC with FET Driver, LIN Transceiver, Volt Regulator, Watchdog
• Secondary Attributes: LCD with Touch Screen on MCU Controller Board
• Product: Power Management Modules
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

3.10
3.11
12
LIN Transceiver
Diagnostic Outputs D1 - D3
Atmel ATA6833/ATA6834 [Preliminary]
At least 5k minimum and 5nF at maximum should be used as values for the RC combination.
10k is recommended. If the non-overlapping phase is controlled by the external microcon-
troller, it is possible to do without the external capacitor. The minimum time t
the parasitic capacitance at CC pin.
As mentioned in the sections above, the diagnostic outputs DG1 to DG3 are used to signal
failures. This is summarized in the following table.
Note:
Table 3-2.
In order to differentiate between LIN and EN2 wake-up, DG1 output will be set to LOW or
HIGH respectively. LOW indicates wake-up by LIN, HIGH indicates wake-up by EN2. DG1
output will be cleared by the first valid watchdog trigger after wake-up or by the first rising edge
at one of the control inputs (IL1 to IL3 and IH1 toIH3) if the watchdog is disabled.
Table 3-3.
Atmel
LIN specification 2.1 and SAEJ2602 2. The transceiver consists of a low-side driver with slew
rate control, wave shaping, current limiting, and a high voltage comparator followed by a
debouncing unit in the receiver.
During transmission, the data applied at pin TXD will be transferred to the bus driver to gener-
ate a bus signal on LIN pin. TXD input has an internal pull-up resistor.
To minimize the electromagnetic emission of the bus line, the bus driver has a built-in slew
rate control and wave-shaping unit. The transmission will be aborted by a thermal shutdown or
by a transition to Sleep Mode.
Note:
CPOK
X
X
X
X
0
DG1
®
1
0
ATA6833 and Atmel ATA6834 include a fully integrated LIN transceiver complying with
This is only valid for VCC > V
X represents: no effect)
OT1: overtemperature warning
OV: overvoltage of PBAT
UV: undervoltage of PBAT
SC: short circuit
CPOK: charge pump OK
OT1
X
1
X
X
X
Device Status
Diagnostic Outputs
Status of the Diagnostic Outputs (Normal Operation)
Indicating Wake-up Source
OV
X
X
X
X
1
DG2
–
–
UV
X
X
X
X
1
SC
X
X
X
X
1
tHRESHLow
DG3
–
–
DG1
–
–
–
1
Diagnostic Outputs
–
. Otherwise all diagnostic outputs will be tristated.
DG2
1
–
1
1
–
DG3
–
1
–
–
–
Wake-up Source
Overtemperature prewarning
EN2
LIN
Charge pump failure
Undervoltage
Overvoltage
Short circuit
Comments
CC
9122G–AUTO–10/10
is defined by