This is one of the PWM controller types.
Part Number: CR6842
Function: Green-Power PWM Controller
Manufacturer: Chip Rail
Package: DIP 8 Pin, SOP 8 Pin
See the preview image and the PDF file for more information.
CR6842 Pinouts :
The CR6842 is a low startup current , low cost, current mode PWM controller with Green-Power & burst-mode power-saving operation. The integrated functions such as the leading-edge blanking of the current sensing, internal slope compensation provide the users a high efficiency, low external component counts, and low cost solution for AC/DC power applications.
1. Low Cost, Green-Power Burst-Mode PWM
2. Very Low Start-up Current ( about 6μA)
3. Low Operating Current ( about 3mA)
4. Current Mode Operation
5. Under Voltage Lockout (UVLO)
6. VDD Over Voltage Protection(OVP)
7. programmable over-temperature protection
8. Internal Latch Circuit(OTP,OVP)
9. Built-in soft start with 1ms
10. Built-in Frequency jitter for better EMI Signature
11. Soft Clamped gate output voltage 16.5V
1. Power Adaptor
2. Battery Charger Adapter
3. Open Frame Switching Power Supply
4. LCD Monitor