ATA6823-DK Atmel, ATA6823-DK Datasheet - Page 7

• Manufacturer Part Number: ATA6823-DK
• Description: BOARD EVALUATION FOR ATA6823
• Manufacturer: Atmel
• Type: PWM Controllersr

Specifications of ATA6823-DK

• Main Purpose: Power Management, Motor Control
• Embedded: No
• Utilized Ic / Part: ATA6823
• Primary Attributes: Brush DC Motors, 8 ~ 18V, LIN Interface, Watchdog, 5V Regulator
• Secondary Attributes: Cross Conduction, Under/Over Voltage, Short Circuit, & Temperature Protection
• Input Voltage: 8 V to 18 V
• Product: Power Management Modules
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• For Use With/related Products: ATA6823

Table 2-4.
Table 2-5.
2.2
4961B–AUTO–02/11
Jumper
1
2
3
4
5
6
7
8
Push Button
Getting Started
1
Jumper Settings
Push Button
Symbol
VMODE
RWD
JH2
JH1
JS2
JS1
JL2
JL1
Description
Watchdog resistor selection
Upper position 2-3 selects R6 (default)
Lower position 1-2 selects R5A + R5B
R6 is implemented as 33kΩ (customer specific, depending on watchdog requirements)
VCC regulator output level
Upper position 2-3 = output level is 3.3V
Lower position 1-2, set to "1" = output level is 5V (default)
Upper position 2-3 switches H2 to on-board H-bridge gate Q3 (default)
Lower position 1-2 switches H2 to external connector X3 pin XH2
See JH2
Upper position 2-3 switches S2 to on-board H-bridge motor M– (default)
Lower position, see JH2
Upper position 2-3 switches S2 to on-board H-bridge motor M+ (default)
Lower position, see JH2
See JH2
See JH2
To run the ATA6823 application board, a 8V to 18V supply voltage between VBAT and GND is
necessary.
To check the board at start up, following voltages are measurable at 12.5V VBAT voltage.
After the power supply is switched on, a level of 5V is measurable at VINT and the header pin
VCC; the VG voltage level is 12.5V and the charge pump voltage VRES is 26.5V. The voltage
level at resistor RWD (R6, JP1) is 1.2V. The charge pump capacity (C13) voltage level is 5V.
The charge pump oscillator frequency is approximately 100kHz.
If the watchdog signal is not applied to the pin WD, the pin /RESET oscillates with a frequency
around 7Hz.
It is not possible to activate the H-bridge without providing a watchdog.
Symbol
EN2
Function
It is possible to wake up the ATA6823 either by LIN or by push button EN2
Atmel ATA6823
7