NCP1239
www.onsemi.com
5
Table 3. MAXIMUM RATINGS
Rating Symbol Value Unit
Power Supply Voltage, V
CC
Pin, Continuous Voltage V
CC
−0.3 to 35 V
Maximum Voltage on Low Power Pins CS, FB and Fault −0.3 to 5.5 V
Maximum Voltage on DRV Pin V
DRV
−0.3 to 20 V
High Voltage Pin HV −0.3 to 650 V
Thermal Resistance Junction-to-Air
Single Layer PCB 25 mm@, 2 Oz Cu Printed Circuit Copper Clad
R
θ
J−A
250 °C/W
Maximum Junction Temperature T
J(max)
150 °C
Storage Temperature Range TSTG −60 to 150 °C
ESD Capability (Note 2)
Human Body Model – All Pins Except HV
Machine Model
ESD
HBM
ESD
MM
4
200
kV
V
Charged-Device Model ESD Capability per JEDEC JESD22−C101E 1 kV
Moisture Sensitivity Level MSL 1
Stresses exceeding those listed in the Maximum Ratings table may damage the device. If any of these limits are exceeded, device functionality
should not be assumed, damage may occur and reliability may be affected.
1. Refer to ELECTRICAL CHARACTERISTICS, RECOMMENDED OPERATING RANGES and/or APPLICATION INFORMATION for Safe
Operating parameters.
2. This device series incorporates ESD protection and is tested by the following methods:
ESD Human Body Model tested per JEDEC JESD22−A114F
ESD Machine Model tested per JEDEC JESD22−A115C
Charged-Device Model ESD Capability tested per JEDEC JESD22−C101E
Latch-up Current Maximum Rating: ≤ 150 mA per JEDEC standard: JESD78
Table 4. ELECTRICAL CHARACTERISTICS
(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
Test Conditions Symbol Min Typ Max Unit
START-UP SECTION
Minimum Voltage for Current Source Operation
I
HV
= 90% I
START2
,
V
CC
= V
CC(on)
− 0.5 V
V
HV(min)
− 25 60 V
Current Flowing Out of V
CC
Pin V
CC
= 0 V I
START1
0.2 0.5 0.8 mA
Current Flowing Out of V
CC
Pin V
CC
= V
CC(on)
– 0.5 V I
START2
1.5 3 4.5 mA
HV Pin Leakage Current V
HV
= 325 V I
LEAK1
− 8 20
mA
SUPPLY SECTION
Start-Up Threshold
HV Current Source Stop Threshold
V
CC
Increasing V
CC(on)
11.0 12.0 13.0 V
HV Current Source Restart Threshold V
CC
Decreasing V
CC(min)
9.0 10.0 11.0 V
Minimum Operating Voltage V
CC
Decreasing V
CC(off)
8.0 8.8 9.4 V
Operating Hysteresis V
CC(on)
= V
CC(off)
V
CC(hys)
3.0 − − V
V
CC
Level for I
START1
to I
START2
Transition V
CC(inhibit)
0.7 1.2 1.7 V
V
CC
Level where Logic Functions are Reset V
CC
Decreasing V
CC(reset)
6.5 7 7.5 V
Internal IC Consumption V
FB
= 3.2 V, F
SW
= 65 kHz
and C
L
=0
ICC1 − 1.4 2.2 mA
Internal IC Consumption V
FB
= 3.2 V, F
SW
= 65 kHz
and C
L
=1nF
ICC2 − 2.1 3.0 mA
Internal IC Consumption V
FB
= 3.2 V, F
SW
= 100 kHz
and C
L
=0
ICC1 − 1.7 2.5 mA
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.
