15
4957E–AUTO–10/07
ATA6623/ATA6625
5 NRES Open Drain Output Pin
5.1 Low level output voltage
V
S
≥ 5.5V
I
NRES
=1mA
I
NRES
= 250 µA
NRES V
NRESL
V
NRESL
0.2
0.14
V
V
A
A
5.2 Low level output low
10 kΩ to VCC
V
CC
=0V
NRES V
NRESLL
0.2 V A
5.3 Undervoltage reset time
V
VS
≥ 5.5V
C
NRES
=20pF
NRES t
Reset
246msA
5.4
Reset debounce time for
falling edge
V
VS
≥ 5.5V
C
NRES
=20pF
NRES t
res_f
1.5 10 µs A
6 VCC Voltage Regulator ATA6623
6.1 Output voltage V
CC
4V < VS < 18V
(0 mA to 50 mA)
VCC VCC
nor
3.234 3.366 V A
6.2
Output voltage V
CC
at
low V
S
3V < VS < 4V VCC VCC
low
V
VS
–
V
Drop
3.366 V A
6.3 Regulator drop voltage VS > 3V, I
VCC
= –15 mA VCC V
Drop1
200 mV A
6.4 Regulator drop voltage VS > 3V, I
VCC
= –50 mA VCC V
Drop2
500 700 mV A
6.5
Line regulation
maximum
4V < VS < 18V VCC VCC
line
1%A
6.6
Load regulation
maximum
5 mA < I
VCC
< 50 mA VCC VCC
load
0.5 2 % A
6.7
Power supply ripple
rejection
10 Hz to 100 kHz
C
VCC
= 10 µF
VS = 14V, I
VCC
=–15mA
50 dB C
6.8 Output current limitation VS > 4V VCC I
VCCs
–200 –160 mA A
6.9 Load capacity 1Ω < ESR < 5Ω @ 100 kHz VCC C
load
1.8 10 µF D
6.10
VCC undervoltage
threshold
Referred to VCC
VS > 4V
VCC V
thunN
2.8 3.2 V A
6.11
Hysteresis of
undervoltage threshold
Referred to VCC
VS > 4V
VCC Vhys
thun
150 mV A
6.12
Ramp up time VS > 4V
to VCC = 3.3V
C
VCC
= 2.2 µF
I
load
= –5 mA at VCC
VCC t
VCC
100 250 µs A
7 VCC Voltage Regulator ATA6625
7.1 Output voltage V
CC
5.5V < VS < 18V
(0 mA to 50 mA)
VCC VCC
nor
4.9 5.1 V A
7.2
Output voltage V
CC
at
low V
S
4V < VS < 5.5V VCC VCC
low
V
VS
– V
D
5.1 V A
7.3 Regulator drop voltage VS > 4V, I
VCC
= –20 mA VCC V
D1
250 mV A
7.4 Regulator drop voltage VS > 4V, I
VCC
= –50 mA VCC V
D2
400 600 mV A
7.5 Regulator drop voltage VS > 3.3V, I
VCC
= –15 mA VCC V
D3
200 mV A
7.6
Line regulation
maximum
5.5V < VS < 18V VCC VCC
line
1%A
8. 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
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