NCP1205 ON Semiconductor, NCP1205 Datasheet - Page 6

• Manufacturer Part Number: NCP1205
• Description: Single Ended Pwm Controller Featuring Qr Operation And Soft Frequency Foldback
• 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.
MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
V
Demagnetization Block
Feedback Path
Fault Detection Circuitry
Current Sense Comparator
Power Supply Voltage
Thermal Resistance Junction−to−Air
Operating Junction Temperature Range
Maximum Junction Temperature
Storage Temperature Range
ESD Capability, HBM Model
ESD Capability, Machine Model
Demagnetization Pin Current
Input Threshold Voltage (V
Hysteresis (V
Input Clamp Voltage
Demag Propagation Delay
No Demag Signal Activation
Internal Input Capacitance at 1.0 V
Demag Propagation Delay with 22 kW External Resistor
Input Impedance at V
Internal Error Amplifier Closed Loop Gain
Internal Built−In Offset Voltage for Error Detection
Error Amplifier Level of VCO Take Over
Internal Divider from Internal Error Amp, Pin to Current
Internal Over Current Level
Fault Time Duration to Latch Activation @ Ct = 1.0 ηF
Over Current Latchoff Phase @ Ct = 1.0 ηF
Hysteresis when V
Overvoltage Protection Threshold for PDIP−14 and
Input Bias Current @ 1.0 V
Maximum Current Setpoint
Minimum Current Setpoint
CC
High State (I
Low State (I
Setpoint
SOIC−16 versions
= 12 V unless otherwise noted.)
pin2
pin2
pin2
= −3.0 mA)
decreasing)
= 3.0 mA)
FB
Characteristics
FB
Rating
goes back into Regulation
= 3.0 V
pin2
increasing)
(For typical values T
PDIP−8
PDIP−14
SOIC−16
PDIP−8
All Pins
All Pins
http://onsemi.com
8
−
−
−
−
−
−
2
PDIP−8 PDIP−14
A
= 25°C, for min/max values T
2
2
2
−
−
2
2
3
3
−
−
−
−
−
−
−
6
6
6
6
PDIP−14
Pin No.
All Pins
All Pins
6
13
−
−
−
−
−
−
3
Pin No.
11
11
11
3
3
3
−
−
3
3
4
4
−
−
−
−
−
−
−
−
SOIC−16
All Pins
All Pins
14
−
−
−
−
−
−
4
SOIC−16
12
12
12
4
4
4
−
−
4
4
5
5
−
−
−
−
−
−
−
7
Symbol
T
R
J
T
Jmax
V
T
qJA
stg
−
−
−
= −25°C to +125°C, Max T
Symbol
in
J
OVP1
C
AV
VC
WL
V
VC
Vth
V
Zin
V
V
I
pin2
min
−
−
−
−
−
−
−
−
IB
ref
H
cl
CL
H
L
L
Min
−
−
−
−
−
−
−
−
−
−0.9
Min
100
100
225
8.0
2.2
2.5
0.9
50
−
−
−
−
−
−
−
−
−
−
−
−
Value
−0.7
−3.0
0.02
Typ
300
370
128
100
250
−25 to +125
−60 to +150
4.0
2.5
1.0
3.0
1.5
1.0
2.8
1.0
65
30
10
10
50
−5.0/+10
Max
100
100
145
150
200
2.0
30
J
= 150°C,
Max
−0.5
350
480
285
8.0
2.8
3.1
1.1
85
12
−
−
−
−
−
−
−
−
−
−
−
°C/W
Unit
Unit
mA
mV
mV
mV
mV
kW
ms
°C
°C
°C
kV
pF
mA
ns
ms
ns
V
V
V
V
V
V
V
V
−
−
s