ATA6823 ATMEL Corporation, ATA6823 Datasheet - Page 18

• Manufacturer Part Number: ATA6823
• Description: H-bridge Motor Driver
• Manufacturer: ATMEL Corporation

9. Electrical Characteristics (Continued)
All parameters given are valid for 7V VBAT 18V and for –40°C
18
* Type: A = 100% tested, B = 100% correlation tested, C = Characterized on samples, D = Design parameter
Notes:
2.10
3.10
3.11
3.12
3.13
3.14
No.
2.9
3.1
3.2
3.3
3.4
3.5
3.6
3.7
3.8
3.9
3
1. EN, DIR, PWM = high
2. The use of X7R material is recommended
3. For higher values, stability at zero load is not guaranteed
4. Tested during qualification only
5. Value depends on T
6. Tested during characterization only
7. Supplied by charge pump
8. See section
9. Voltage between source-drain of external switching transistors in active case
10. The short-circuit message will never be generated for switch-on time < t
Parameters
HIGH threshold VMODE
LOW threshold VMODE
Reset and Watchdog
V
level for /RESET
V
level for /RESET
Hysteresis of /RESET
level
Length of pulse at
/RESET pin
Length of short pulse at
/RESET pin
Wait for the first WD
trigger
Time for VCC < V
before activating /RESET
Resistor defining internal
bias currents for
watchdog oscillator
Watchdog oscillator
period
Watchdog oscillator
period with internal
resistor
Watchdog input
low-voltage threshold
Watchdog input
high-voltage threshold
Hysteresis of watchdog
input voltage threshold
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ATA6823 [Preliminary]
CC
CC
threshold voltage
threshold voltage
“Cross Conduction Time”
tHRESL
OSC
; function tested with digital test pattern
Test Conditions
VMODE = “H”
(VMODE = “L”)
VMODE = “H”
(VMODE = “L”)
(4)
(5)
(5)
(5)
(4)
R
(5)
RWD
= 33 k
Pin
29
29
29
29
1
1
5
5
5
3
3
6
6
6
ambient 125°C unless stated otherwise.
VMODE H
VMODE L
HYS
T
t
Symbol
V
V
delayRESL
V
t
OSC_start
V
resshort
R
V
T
tHRESH
tHRESL
hysWD
t
IHWD
OSC
ILWD
RWD
t1
res
t
d
RESth
sc
4.1 (2.7)
11.09
0.7
V
Min
0.7
0.5
10
16
VCC
980
6800
6800
T
Typ
200
0.2
OSC
1
(3.05)
13.55
0.3
V
Max
4.0
4.6
91
24
VCC
2
4856E–AUTO–07/07
Unit
T
T
T
k
µs
µs
µs
V
V
V
V
V
100
100
100
V
V
V
Type*
C
D
A
A
A
A
A
A
A
A
A
A
A
A
A
A