NCV4279A
http://onsemi.com
4
ELECTRICAL CHARACTERISTICS (−40°C ≤ T
J
≤ 150°C, V
I
= 13.5 V unless otherwise specified)
Characteristic Symbol Test Conditions Min Typ Max Unit
REGULATOR
Output Voltage
V
Q
1 mA v I
Q
v 100 mA; 6 V v V
I
v 16 V 4.90 5.00 5.10 V
Current Limit I
Q
− 150 200 500 mA
Current Consumption; I
q
= I
I
– I
Q
I
q
I
Q
= 1 mA, RO, SO High − 190 250
mA
Current Consumption; I
q
= I
I
– I
Q
I
q
I
Q
= 1 mA, RO High, SO Low (Note 5) − 560 650
mA
Current Consumption; I
q
= I
I
– I
Q
I
q
I
Q
= 10 mA, RO, SO High − 250 450
mA
Current Consumption; I
q
= I
I
– I
Q
I
q
I
Q
= 50 mA, RO, SO High − 2.0 3.0 mA
Dropout Voltage V
dr
I
Q
= 100 mA (Note 6) − 0.25 0.5 V
Load Regulation
DV
Q
I
Q
= 5 mA to 100 mA − 10 20 mV
Line Regulation
DV
Q
V
I
= 6 V to 26 V; I
Q
= 1 mA − 10 30 mV
RESET GENERATOR
Reset Switching Threshold
V
RT
− 4.50 4.65 4.80 V
Reset Adjust Switching Threshold V
RADJ,TH
V
Q
> 3.5 V 1.26 1.35 1.44 V
Reset Output Saturation Voltage V
RO,SAT
V
Q
< V
RT
, R
RO
= 20 kW
− 0.1 0.4 V
Upper Delay Switching Threshold V
UD
− 1.4 1.8 2.2 V
Lower Delay Switching Threshold V
LD
− 0.3 0.45 0.60 V
Saturation Voltage on Delay Capacitor V
D,SAT
V
Q
< V
RT
− − 0.1 V
Charge Current I
D
,C V
D
= 1 V 3.0 6.5 9.5
mA
Delay Time L ³ H t
d
C
D
= 100 nF 17 28 − ms
Delay Time H ³ L t
RR
C
D
= 100 nF − 3.15 −
ms
INPUT VOLTAGE SENSE
Sense Threshold High
V
SI,High
− 1.24 1.31 1.38 V
Sense Threshold Low V
SI,Low
− 1.16 1.20 1.28 V
Sense Output Saturation Voltage V
SO,Low
V
SI
< 1.20 V; V
Q
> 3 V; R
SO
= 20 kW
− 0.1 0.4 V
Sense Input Current I
SI
− −1.0 0.1 1.0
mA
5. Including 20 kW external SO pull−up resistor current.
6. Dropout voltage = V
I
− V
Q
measured when the output voltage has dropped 100 mV from the nominal value obtained at 13.5 V input.
