NCP781
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7
Table 6. ELECTRICAL CHARACTERISTICS − 15 V −40°C ≤ T
J
≤ 125°C; V
OUT
= 15.0 V typical, V
IN
= 25 V, C
IN
= C
OUT
= 1 mF,
unless otherwise noted. Typical values are at T
A
= +25°C. (Notes 23, 24)
Parameter
Test Conditions Symbol Min Typ Max Unit
INPUT REGULATOR
Operating Input Voltage
V
IN
6 150 V
OUTPUT REGULATOR
Output Voltage Accuracy −40°C ≤ T
J
≤ 125°C
(V
OUTNOM
+ 10 V) ≤ V
IN
≤ 150 V
−3% 15.0 +3% V
Output Voltage Accuracy
T
J
= 25°C, I
OUT
= 50 mA
(V
OUTNOM
+ 10 V) ≤ V
IN
≤ 150 V
−2.5% 15.0 +2.5% V
Line Regulation 25 V ≤ V
IN
≤ 150 V
I
OUT
= 50 mA
Reg
line
37.5 75 mV
Load Regulation (Note 26)
V
IN
= 25 V, 50 mA ≤ I
OUT
≤ 100 mA
Reg
load
60 120 mV
Dropout Voltage (Note 25) V
DO
4.7 9.5 V
DISABLE, QUIESCENT AND GROUND CURRENTS
Disable Current
V
EN
= 0 V, V
IN
= 150 V I
DIS
− 1 10
mA
Quiescent Current I
OUT
= 0 mA I
Q
− 27 57
mA
Ground Current I
OUT
= 100 mA I
GND
− 250 400
mA
Enable pin current 1.5 V < V
EN
< 150 V I
EN
500 nA
CURRENT LIMIT PROTECTION
Current Limit (Note 26)
V
OUT
= V
OUTNOM
– (3% V
OUTNOM
) I
LIM
110 mA
Short Circuit Current Limit V
OUT
= 0 V, Vin = 25 V I
SC
220 mA
ENABLE THRESHOLDS
Enable Input Threshold Voltage
Voltage Increasing, Logic High
Voltage Decreasing, Logic Low
High
Low
V
TH(EN)
1.5
−
−
−
−
0.4
V
PSRR AND NOISE
Power Supply Ripple Rejection (Note 27)
V
IN
= 25 V + 200 mV
pp
modulation
V
OUT
= 15 V, C
OUT
= 1.0 mF
I
OUT
= 10 mA
f = 1 kHz
f = 10 kHz
f = 100 kHz
PSRR
−
−
−
53
50
43
−
−
−
dB
Output Noise Voltage (Note 27) V
out
= 15 V, V
in
= 150 V
I
OUT
= 1 mA, C
OUT
= 1.0 mF
f = 100 Hz to 100 kHz
V
NOISE
−
530
−
mV
rms
THERMAL SHUTDOWN
Thermal Shutdown Temperature (Note 27)
T
SD
− 160 − °C
Thermal Shutdown Hysteresis (Note 27) T
SH
− 15 − °C
23.Performance guaranteed over the indicated operating temperature range by design and characterization production tested at Tj = Ta = 25°C.
Low duty cycle pulse techniques are used during testing to maintain the junction temperature as close to ambient as possible.
24.I
OUT
> 50 mA at V
IN
> 50 V
25.Characterized when V
OUT
falls 450 mV below the regulated voltage and only for devices with V
OUTNOM
= 15.0 V
26.Respect to SOA
27.Guaranteed by design and characterization
