PWM Controller. OB2263 Datasheet

OB2263 Controller. Datasheet pdf. Equivalent

Part OB2263
Description Current Mode PWM Controller
Feature SMD Type Current Mode PWM Controller OB2263 ( SOT-23-6 ) 0.4+0.1 -0.1 ■ Features ● Audio Noise Fr.
Manufacture Kexin
Datasheet
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SMD Type Current Mode PWM Controller OB2263 ( SOT-23-6 ) 0 OB2263 Datasheet
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OB2263
SMD Type
Current Mode PWM Controller
OB2263
( SOT-23-6 )
0.4+0.1
-0.1
Features
Audio Noise Free Operation
External Programmable PWM Switching Frequency
Internal Synchronized Slope Compensation
Low VDD Startup Current and Low Operating Current (1.4mA)
Leading Edge Blanking on Current Sense Input
Good Protection Coverage With Auto Self-Recovery
Gate Output Maximum Voltage Clamp (13V)
Overload Protection (OLP)
6 54
1 23
+0.01
-0.01
+0.2
-0.1
IC
Unit: mm
0.15 +0.02
-0.02
1.GND
2.FB
3.NC
4.SENSE
5.VDD
6.GATE
Block Diagram
www.kexin.com.cn 1



OB2263
SMD Type
Current Mode PWM Controller
OB2263
Typical Applicattion
IC
OB2263
Terminal Assignments
Pin Name
GND
FB
NC
SENSE
VDD
GATE
I/O Description
P Ground
I Feedback input pin. The PWM duty cycle is determined by voltage level into this pin
and SENSE pin input.
I Current sense input pin. Connected to MOSFET current sensing resistor node.
P Chip DC power supply pin.
O Totem-pole gate drive output for the power MOSFET.
Absolute Maximum Ratings Ta = 25
Parameter
DC supply voltage
VDD Zener Clamp Voltage FB
VFB Input Voltage
VSENSE Input Voltage to Sense Pin
VCC DC clamp current
Thermal Resistance Junction to Ambient
Junction Temperature
Operating temperature
Storage Temperature Range
Symbol
VDD
VCC
VFB
VSENSE
ICC
RθJA
TJ
TOPT
Tstg
Rating
10 to 30
VDD_Clamp+0.1V
-0.3 to 7
-0.3 to 7
10
200
-20 to 150
-20 to 85
-55 to 160
Unit
V
mA
/W
2 www.kexin.com.cn





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