NCP439
www.onsemi.com
4
ELECTRICAL CHARACTERISTICS Min and Max Limits apply for T
A
between −40°C to +85°C for
VIN
between 1.0 V to 3.6 V
(Unless otherwise noted). Typical values are referenced to T
A
= + 25 °C and V
IN
= 3.3 V (Unless otherwise noted).
Symbol Parameter Conditions Min Typ Max Unit
POWER SWITCH
R
DS(on)
Static drain−source on−state
resistance
V
IN
= 3.6 V T
A
= 25°C 27 34
mW
T
J
= 125°C 38
V
IN
= 3.3 V T
A
= 25°C 28 35
T
J
= 125°C 40
V
IN
= 2.5 V T
A
= 25°C 31 39
T
J
= 125°C 45
V
IN
= 1.8 V T
A
= 25°C 37 45
T
J
= 125°C 52
V
IN
= 1.2 V T
A
= 25°C 54 70
T
J
= 125°C 76
V
IN
= 1.0 V T
A
= 25°C 73 95
R
DIS
Output discharge path EN = low V
IN
= 3.3 V 55 67 95
W
TIMINGS
T
R
Output rise time
V
IN
= 3.3 V
C
LOAD
= 1 mF,
R
LOAD
= 25 W From 10%
to 90% of V
OUT
40 75 160
ms
T
F
Output fall time
C
LOAD
= 1 mF,
R
LOAD
= 25 W (Note 7)
10 50
80 ms
T
dis
Disable time From EN vil to 90% V
OUT
8.7
ms
T
on
Gate turn on
Enable time + Output rise
time
70 166
280 ms
T
en
Enable time
From EN low to high to
V
OUT
= 10% of fully on
30 66
120 ms
LOGIC PIN
V
IH
High−level input voltage V
IN
= 3.3 V
0.90
V
V
IL
Low−level input voltage V
IN
= 3.3 V 0.5 V
QUIESCENT CURRENT
I
Q
Current consumption
V
IN
= 3.3 V,
EN = low, No
load
0.02
1
mA
V
IN
= 3.3 V,
EN = high,
No load
1.6 4
7. Parameters are guaranteed for C
LOAD
and R
LOAD
connected to the OUT pin with respect to the ground
8. Guaranteed by design and characterization, not production tested.
