
©On-Bright Electronics
Confidential
- 3 -
OB_DOC_DS_69CC1
OB2269C
Current Mode PWM Controller
Frequency Shuffling
Marking Information
TERMINAL ASSIGNMENTS
Pin Num Pin Name
I/O Description
1 GND
P
Ground
2
FB
I
Feedback input pin. PWM duty cycle is determined by voltage level into this
pin and current-sense signal level at Pin 6.
3
VIN
I
Connected through a large value resistor to rectified line input for Startup IC
supply and line voltage sensing.
4
RI
I
Internal Oscillator frequency setting pin. A resistor connected between RI
and GND sets the PWM frequency.
5
RT
I
Temperature sensing input pin. Connected through a NTC resistor to GND.
6
SENSE
I
Current sense input pin. Connected to MOSFET current sensing resistor
node.
7
VDD
P
DC power supply pin.
8
GATE
O
Totem-pole gate drive output for power MOSFET.
On-Bright Confidential to Lycon (志恒通电子)
JBL
150P / 230V Service Manual
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