Rainbow Electronics ATA6630 - Manual (Page 27)

27
9117C–AUTO–10/09
ATA6628/ATA6630 [Preliminary]
12 NRES Open Drain Output Pin
12.1 Low-level output voltage
V
S
≥
5.5V
I
NRES
= 1 mA
I
NRES
= 250 µA
NRES V
NRESL
0.2
0.14
V
V A
12.2 Low-level output low
10 k
Ω
to V
CC
V
CC
= 0V
NRES V
NRESLL
0.2 V A
12.3 Undervoltage reset time
V
S
≥
5.5V
C
NRES
= 20 pF
NRES t
reset
2 4 6 ms A
12.4
Reset debounce time for
falling edge V
S
≥
5.5V
C
NRES
= 20 pF
NRES t
res_f
1.5 10 µs A
12.5 Switch off leakage current V
NRES
= 5.5V NRES –3 +3 µA A
13 Watchdog Oscillator
13.1
Voltage at WD_OSC in
Normal or Fail-safe Mode I
WD_OSC
= –200 µA
V
VS
≥
4V
WD_OSC V
WD_OSC
1.13 1.23 1.33 V A
13.2 Possible values of resistor Resistor ±1% WD_OSC R
OSC
34 120 k
Ω
A
13.3 Oscillator period R
OSC
= 34 k
Ω
t
OSC
10.65 13.3 15.97 µs A
13.4 Oscillator period R
OSC
= 51 k
Ω
t
OSC
15.68 19.6 23.52 µs A
13.5 Oscillator period R
OSC
= 91 k
Ω
t
OSC
26.83 33.5 40.24 µs A
13.6 Oscillator period R
OSC
= 120 k
Ω
t
OSC
34.2 42.8 51.4 µs A
14 Watchdog Timing Relative to t
OSC
14.1
Watchdog lead time after
Reset
t
d
7895 cycles A
14.2 Watchdog closed window t
1
1053 cycles A
14.3 Watchdog open window t
2
1105 cycles A
14.4
Watchdog reset time
NRES
NRES t
nres
3.2 4 4.8 ms A
15 KL_15 Pin
15.1
High-level input voltage
R
V
= 47 k
Ω
Positive edge initializes a
wake-up
KL_15 V
KL_15H
4 V
S
+ 0.3V V A
15.2
Low-level input voltage
R
V
= 47 k
Ω
KL_15 V
KL_15L
–1 +2 V A
15.3 KL_15 pull-down current
V
S
< 27V
V
KL_15
= 27V
KL_15 I
KL_15
50 60 µA A
15.4 Internal debounce time Without external capacitor KL_15 Tdb
KL_15
80 160 250 µs A
15.5 KL_15 wake-up time R
V
= 47 k
Ω
, C = 100 nF KL_15 Tw
KL_15
0.4 2 4.5 ms C
16 WAKE Pin
16.1 High-level input voltage WAKE V
WAKEH
V
S
– 1V V
S
+ 0.3V V A
16.2 Low-level input voltage Initializes a wake-up signal WAKE V
WAKEL
–1 V
S
– 3.3V V A
16.3 WAKE pull-up current V
S
< 27V, V
WAKE
= 0V WAKE I
WAKE
–30 –10 µA A
16.4 High-level leakage current V
S
= 27V, V
WAKE
= 27V WAKE I
WAKEL
–5 +5 µA A
16.5
Time of low pulse for
wake-up via WAKE pin
V
WAKE
= 0V WAKE I
WAKEL
30 70 150 µs A
9. Electrical Characteristics (Continued)
5V < V
S
< 27V, –40°C < T
j
< 150°C, unless otherwise specified. All values refer to GND pins
No. Parameters Test Conditions Pin Symbol Min. Typ. Max. Unit Type*
*) Type means: A = 100% tested, B = 100% correlation tested, C = Characterized on samples, D = Design parameter