OB2269AP Current Mode PWM Controller IC - DIP-8 Package

OB2269AP Current Mode PWM Controller IC - DIP-8 Package is a highly integrated current-mode PWM controller designed for offline AC/DC flyback power supplies. It provides programmable switching frequency, burst-mode operation for improved light-load efficiency, internal slope compensation, leading-edge current-sense blanking, and comprehensive protection functions. The IC is suitable for SMPS applications such as power adapters, battery chargers, set-top boxes, televisions, and other compact AC/DC power supplies.

Features:

1. Current-mode PWM control.
2. Designed for offline AC/DC flyback converters.
3. Externally programmable PWM switching frequency.
4. Extended burst-mode operation for reduced standby power.
5. Low startup current.
6. Internal synchronized slope compensation.
7. Leading-edge blanking on the current-sense input.
8. Cycle-by-cycle over-current protection.
9. Overload and over-temperature protection.
10. VDD over-voltage protection and under-voltage lockout.
11. Gate-drive output voltage clamped to protect the external MOSFET.
12. Frequency-shuffling technology for improved EMI performance.
13. DIP-8 through-hole package.

Specifications:

Parameter	Value
Product Type	Current-Mode PWM Controller IC
Model	OB2269AP
Manufacturer	On-Bright Electronics / Lite-On
Controller Type	Current-Mode PWM
Application	Offline AC/DC Flyback Converter
Package	DIP-8
Maximum VDD Voltage	36 V
Maximum VIN Voltage	36 V
Startup Current	4 µA Typ.
Operating Current	2.3 mA Typ.
Gate Output Clamp Voltage	18 V Max.
Protection	OCP, OLP, OTP, OVP, UVLO
Frequency Control	External Resistor
Mounting Type	Through Hole

Pin Configuration:

Pin No.	Pin Name	Description
1	GND	Ground
2	FB	Feedback Input; Controls PWM Duty Cycle
3	VIN	Startup and Line-Voltage Sensing Input
4	RI	Oscillator Frequency Setting Input
5	RT	Temperature Sensing Input
6	SENSE	Current-Sense Input
7	VDD	DC Power Supply Input
8	GATE	Totem-Pole Gate Drive Output

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Package Includes:

1 × OB2269AP Current Mode PWM Controller IC - DIP-8 Package