NCP1606 ON Semiconductor, NCP1606 Datasheet - Page 3

• Manufacturer Part Number: NCP1606
• Description: Cost Effective Power Factor Controller
• 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 series contains ESD protection and exceeds the following tests:
2. This device contains latch−up protection and exceeds 100 mA per JEDEC Standard JESD78.
PIN FUNCTION DESCRIPTION
MAXIMUM RATINGS
Pin Number
1, 2, 3, 4, 5
Pins 1−8 (except pin 7): Human Body Model 2000 V per Mil−Std−883, Method 3015. Machine Model Method 200 V
Pin 7: Human Body Model 2000 V per Mil−Std−883, Method 3015. Machine Model Method 170 V
Pin
1
2
3
4
5
6
7
8
7
7
8
Detection (ZCD)
Feedback (FB)
Output Drive Capability
Maximum DRV Pin Voltage
Power Supply Input
Input Voltage
Power Dissipation and Thermal Characteristics
P suffix, Plastic Package, Case 626
Maximum Power Dissipation @ T
Thermal Resistance Junction−to−Air
D suffix, Plastic Package, Case 751
Maximum Power Dissipation @ T
Thermal Resistance Junction−to−Air
Operating Junction Temperature Range
Maximum Junction Temperature
Storage Temperature Range
Lead Temperature (Soldering, 10 s)
Current Sense
Ground (GND)
Zero Current
Drive (DRV)
Control
Name
(CS)
V
Ct
CC
The voltage of an auxiliary winding should be applied to this pin to detect the moment when the coil is
demagnetized for critical conduction mode operation. Ground ZCD to shutdown the part.
The FB pin makes available the inverting input of the internal error amplifier. A simple resistor divider
scales and delivers the output voltage to the FB pin to maintain regulation. The feedback information
is also used for the programmable overvoltage and undervoltage protections.
The regulation block output is available on this pin. A compensation network is placed between FB
and Control to set the loop bandwidth low enough to yield a high power factor ratio and a low THD.
The Ct pin sources a 270 mA current to charge an external timing capacitor. The circuit controls the power
switch on time by comparing the Ct voltage to an internal voltage derived from the regulation block.
This pin limits the pulse by pulse current through the switch MOSFET when connected as show in
Figure 1. When the voltage exceeds 1.7 V (A version) or 0.5 V (B version), the drive turns off. The
maximum switch current can be adjusted by changing the sense resistor.
Connect this pin to the pre−converter ground.
The powerful integrated driver is suitable to effectively switch a high gate charge power MOSFET.
This pin is the positive supply of the IC. The circuit starts to operate when V
and turns off when V
Rating
A
A
= 70°C
= 70°C
CC
http://onsemi.com
goes below 9.5 V (typ). After startup, the operating range is 10.3 V to 20 V.
3
Function
I
DRV(source)
R
R
I
Symbol
P
DRV(sink)
P
qJA
qJA
T
T
T
V
D
D
V
V
Jmax
Smax
Lmax
(DIP)
DRV
T
(SO)
CC
IN
(DIP)
(SO)
J
−25 to +125
−65 to 150
−0.3, +20
−0.3, +20
−0.3, +9
Value
+500
−800
800
100
450
178
150
300
CC
exceeds 12 V (typ)
°C/W
°C/W
Unit
mW
mW
mA
mA
°C
°C
°C
°C
V
V
V