ATA6824
If higher output currents are required, the MꢀSFET driver IC ATA6824 is recommended. This device
includes in addition a 5V/3V voltage regulator for microcontroller supply, a window watchdog and a serial inter-
face. The integrated motor control unit avoids peak currents within the H-bridge.
VBAT
PBAT
VINT VG
PBAT
VBAT
VBATSW
CPHI CPLO
CP
VRES
VMODE
VCC
H2
S2
VCC
Regulator
VBG
13V
Regulator
High-side
Driver 2
Supervisor:
DG1
DG2
Short Circuit
Over Temperature
Under Voltage
VINT 5V
Regulator
H1
S1
High-side
Driver 1
DG3
Microcontroller
ATA6824
RESET
WD
L1
Low-side
Logic Control
Driver 1
EN1
Osc.
DIR
PWM
RX
L2
WD
Timer
CC
Timer
Low-side
Driver 2
Serial Interface
PGND
TX
Serial Interface
EN2
RWD
CC
GND
AVR Microcontrollers
Atmel also offers the 8-bit AVꢂ© microcontroller family ATmega for high-temperature automotive applications.
Features
n Supply Voltage up to 40V
Benefits
n Automotive-qualified
n Various Diagnostic Functions
n Integrated Communication Interface
n Enhanced PWM Frequency of up to 25 kHz
(ATA6832)
n ꢁo Shoot-through Current
n QFꢁ32 (ATA6824) and QFꢁ18 (ATA6827/32)
Power Package with Heat Slug
n Ambient Temperatures up to 150°C/302°F
n Junction Temperatures up to 200°C/392°F
n ꢀutputs Short-circuit Protected
n Selective ꢀvertemperature Protection for
Each integrated Switch and ꢀvertemperature
Prewarning
n Undervoltage Protection