NCP1239
www.onsemi.com
8
Table 4. ELECTRICAL CHARACTERISTICS (continued)
(For typical values T
J
= 25°C, for min/max Values T
J
= −40°C to +125°C, V
HV
= 125 V, V
CC
= 11 V unless otherwise noted)
Parameter UnitMaxTypMinSymbolTest Conditions
BROWN-OUT (BO)
Brown-Out Thresholds (D, I and J versions)
V
HV
Increasing V
BO(on)
92 101 110 V
Brown-Out Thresholds (D, I and J versions) V
HV
Decreasing V
BO(off)
87 95 103 V
Brown-Out Thresholds (F version only) V
HV
Increasing V
BO(on)
211 229 247 V
Brown-Out Thresholds (F version only) V
HV
Decreasing V
BO(off)
164 176 188 V
Brown-Out Thresholds (G version only) V
HV
Increasing V
BO(on)
86 95 104 V
Brown-Out Thresholds (G version only) V
HV
Decreasing V
BO(off)
79 86 93 V
Brown-Out Thresholds (H version only) V
HV
Increasing V
BO(on)
221 229 247 V
Brown-Out Thresholds (H version only) V
HV
Decreasing V
BO(off)
208 224 240 V
Brown-Out Timer Duration
(A, B, C, D, E, F, H, I and J versions)
V
HV
Decreasing t
BO
54 68 82 ms
Brown-Out Timer Duration (G version only) V
HV
Decreasing t
BO
110 136 162 ms
FAULT INPUT (OTP/OVP)
Over-Voltage Protection Threshold
V
FAULT
Increasing V
FAULT(OVP)
2.8 3.0 3.2 V
Over-Temperature Protection Threshold V
FAULT
Decreasing V
FAULT(OTP)
0.37 0.40 0.43 V
NTC Biasing Current V
FAULT
= 0 V I
OTP
39 45 51
mA
Additional NTC Biasing Current during
Soft-Start Only
V
FAULT
= 0 V − During
Soft-Start Only
I
OTP_boost
38 44 50
mA
Latch Clamping Voltage I
FAULT
= 0 mA V
FAULT(clamp)0
1.1 1.35 1.6 V
Latch Clamping Voltage I
FAULT
= 1 mA V
FAULT(clamp)1
2.2 2.7 3.2 V
Blanking Time after Drive Turn Off t
LATCH(blank)
− 1 −
ms
Number of Clock Cycles before Latch
Confirmation
t
LATCH(count)
− 4 −
OVER-CURRENT PROTECTION (OCP)
Internal OCP Timer Duration
A, B, C, D, E, F, G and H
versions
t
OCP
51 64 77 ms
Internal OCP Timer Duration I and J versions t
OCP
102 128 154 ms
Auto-Recovery Timer t
AUTOREC
0.85 1 1.35 s
V
CC
OVER-VOLTAGE (V
CC
OVP)
Latched Over Voltage Protection on V
CC
Pin A, B, C, D, E, G, H and I
versions
V
CC(OVP)
24.0 25.5 27.0 V
Latched Over Voltage Protection on V
CC
Pin F and J versions V
CC(OVP)
30.0 32.0 34.0 V
Delay before OVP on V
CC
Confirmation t
OVP(delay)
− 20 −
ms
THERMAL SHUTDOWN (TSD)
Temperature Shutdown
T
J
Increasing (Note 1) T
SHDN
135 150 165 °C
Temperature Shutdown Hysteresis T
J
Decreasing (Note 1) T
SHDN(hys)
− 20 − °C
Product parametric performance is indicated in the Electrical Characteristics for the listed test conditions, unless otherwise noted. Product
performance may not be indicated by the Electrical Characteristics if operated under different conditions.
1. Guaranteed by design
2. CS pin source current is a sum of I
BIAS
and I
OPP
, thus at V
HV
= 125 V is observed the I
BIAS
only, because I
OPC
is switched off.
