NCP1271 ON Semiconductor, NCP1271 Datasheet - Page 2

• Manufacturer Part Number: NCP1271
• Description: Soft?skip? Mode Standby Pwm Controller With Adjustable Skip Level And External Latch
• Manufacturer: ON Semiconductor

Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the
Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect
device reliability.
1. This device contains ESD protection and exceeds the following tests:
2. Guaranteed by design, not tested.
3. As mounted on a 40x40x1.5 mm FR4 substrate with a single layer of 80 mm
4. As mounted on a 40x40x1.5 mm FR4 substrate with a single layer of 650 mm
MAXIMUM RATINGS
V
Skip/Latch, FB, CS Pin (Pins 1-3)
Drv Pin (Pin 5)
HV Pin (Pin 8)
Power Dissipation and Thermal Characteristics
Operating Junction Temperature Range
Maximum Storage Temperature Range
Pins 1-6: Human Body Model 2000 V per Mil-Std-883, Method 3015
Machine Model Method 150 V (on Pins 5 and 6) and 200 V (all other pins)
Pin 8 is the HV startup of the device and is rated to the maximum rating of the part, or 500 V
This device contains latchup protection and exceeds 100 mA per JEDEC Standard JESD78.
a JEDEC 51 low conductivity test PCB. Test conditions were under natural convection or zero air flow.
for a JEDEC 51 high conductivity test PCB. Test conditions were under natural convection or zero air flow.
Maximum Voltage Range
Maximum Current
Maximum Voltage Range
Maximum Current
Maximum Voltage Range
Maximum Current
Maximum Voltage Range
Maximum Current
Thermal Resistance, Junction-to-Air, PDIP-7, Low Conductivity PCB (Note 3)
Thermal Resistance, Junction-to-Lead, PDIP-7, Low Conductivity PCB
Thermal Resistance, Junction-to-Air, PDIP-7, High Conductivity PCB (Note 4)
Thermal Resistance, Junction-to-Lead, PDIP-7, High Conductivity PCB
Thermal Resistance, Junction-to-Air, SO-7, Low Conductivity PCB (Note 3)
Thermal Resistance, Junction-to-Lead, SO-7, Low Conductivity PCB
Thermal Resistance, Junction-to-Air, SO-7, High Conductivity PCB (Note 4)
Thermal Resistance, Junction-to-Lead, SO-7, High Conductivity PCB
CC
Input
AC
Pin (Pin 6)
*
Optional
EMI
Filter
(Notes 1 and 2)
R
skip
latch input*
Rating
Figure 1. Typical Application Circuit
skip/latch
FB
CS
Gnd
NCP1271
http://onsemi.com
Vcc
Drv
NCP1271
HV
2
2
of 2 oz copper traces and heat spreading area. As specified for
2
of 2 oz copper traces and heat spreading area. As specified
R
*
ramp
Symbol
V
V
V
V
R
R
R
R
R
R
R
R
I
I
I
I
T
max
max
max
max
max
max
max
max
T
qJA
qJL
qJA
qJL
qJA
qJL
qJA
qJL
stg
J
-800 to +500
-0.3 to +500
-40 to +150
-60 to +150
-0.3 to +20
-0.3 to +10
-0.3 to +20
Value
100
100
100
142
120
177
136
57
56
75
69
Voltage
Output
+
-
°C/W
°C/W
°C/W
°C/W
°C/W
°C/W
°C/W
°C/W
Unit
mA
mA
mA
mA
°C
°C
V
V
V
V