NCV8772
http://onsemi.com
5
ELECTRICAL CHARACTERISTICS V
in
= 13.2 V, V
EN
= 3 V, C
in
= 0.1 mF, C
out
= 1 mF, for typical values T
J
= 25°C, for min/max
values T
J
= −40°C to 150°C; unless otherwise noted. (Notes 9 and 10)
Parameter UnitMaxTypMinSymbolTest Conditions
ENABLE THRESHOLDS
Enable Input Threshold Voltage
Logic Low
Logic High
V
th(EN)
−
2.5
−
−
0.8
−
V
Enable Input Current
Logic High
Logic Low
V
EN
= 5 V
V
EN
= 0 V, T
J
< 85°C
I
EN_ON
I
EN_OFF
−
−
3
0.5
5
1
mA
DT (RESET DELAY TIME SELECT) − D2PAK−7 ONLY
DT Threshold Voltage
Logic Low
Logic High
V
th(DT)
−
2.0
−
−
0.8
−
V
DT Input Current V
DT
= 5 V I
DT
− − 1.0
mA
RESET OUTPUT RO
Input Voltage Reset Threshold
3.3 V
V
in
decreasing, V
out
> V
RT
V
in_RT
− 3.8 4.2
V
Output Voltage Reset Threshold
(Note 13)
(NCV8772y) where y = 1,2,3,... 3.3 V
5.0 V
(NCV8772y) where y = A,B,C,... 3.3 V
5.0 V
V
out
decreasing
V
in
> 4.5 V
V
in
> 5.5 V
V
in
> 4.5 V
V
in
> 5.5 V
V
RT
90
90
87
87
93
93
90
90
96
96
93
93
%V
out
Reset Hysteresis V
RH
− 2.0 − %V
out
Maximum Reset Sink Current 3.3 V
5.0 V
V
out
= 3 V, V
RO
= 0.25 V
V
out
= 4.5 V, V
RO
= 0.25 V
I
ROmax
1.3
1.75
−
−
−
−
mA
Reset Output Low Voltage
V
out
> 1 V, I
RO
< 200 mA
V
ROL
− 0.15 0.25 V
Reset Output High Voltage 5.0 V V
ROH
4.5 − − V
Reset High Level Leakage Current
3.3 V
I
ROLK
− − 1.0
mA
Integrated Reset Pull−up Resistor
5.0 V
R
RO
15 30 50
kW
Reset Delay Time (DPAK−5, D2PAK−5)
(Note 13)
Min Available Time
Max Available Time
t
RD
6.4
102.4
(20%)
8.0
128
9.6
153.6
(20%)
ms
Reset Delay Time (D2PAK−7)
(Note 13)
Min Available Time, DT connected to GND
Max Available Time, DT connected to V
out
t
RD
3.2
102.4
(20%)
4.0
128
4.8
153.6
(20%)
ms
Reset Reaction Time (see Figure 33) t
RR
16 25 38
ms
THERMAL SHUTDOWN
Thermal Shutdown Temperature
(Note 12)
T
SD
150 175 195 °C
Thermal Shutdown Hysteresis
(Note 12)
T
SH
− 25 − °C
9. Refer to ABSOLUTE MAXIMUM RATINGS and APPLICATION INFORMATION for Safe Operating Area.
10.Performance guaranteed over the indicated operating temperature range by design and/or characterization tested at T
A
[ T
J
. Low duty
cycle pulse techniques are used during testing to maintain the junction temperature as close to ambient as possible.
11. Measured when output voltage falls 100 mV below the regulated voltage at V
in
= 13.2 V.
12.Values based on design and/or characterization.
13.See APPLICATION INFORMATION section for Reset Thresholds and Reset Delay Time Options
(56 pages)
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