RS2253 Orister Corporation, RS2253 Datasheet - Page 2

• Manufacturer Part Number: RS2253
• Description: Secondside Regulation Current Mode Pwm Power Switcher
• Manufacturer: Orister Corporation

Pin Assignment
Ordering Information
DS‐RS2253‐10 May, 2010
RS2253 Y Z
PACKAGE
DEVICE
SOP‐8
This integrated circuit can be damaged by ESD. Orister Corporation recommends that all integrated circuits be handled with
appropriate precautions. Failure to observe proper handling and installation procedures can cause damage.
ESD damage can range from subtle performance degradation to complete device failure. Precision integrated circuits may be more
susceptible to damage because very small parametric changes could cause the device not to meet its published specifications.
Y is package designator :
S: SOP‐8
Z is Lead Free designator :
P: Commercial Standard, Lead (Pb) Free and Phosphorous (P) Free Package
G: Green (Halogen Free with Commercial Standard)
PIN
5, 6
7, 8
1
2
3
4
SYMBOL
DRAIN
SENSE
VDDG
GND
VDD
FB
Internal Gate Driver Power Supply Pin
DC Power Supply Input Pin
Feedback input Pin. The PWM duty cycle is determined by voltage level into this
pin and the current‐sense signal at Pin 4
Current Sense Input Pin
HV MOSFET Drain Pin. The Drain pin is connected to the primary lead of the
transformer
Ground Pin
SOP‐8
DEVICE CODE
DESCRIPTION
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