OB235X Series
High Performance PWM Power Switch


OB235X series are PWM Power Switch ICs. They feature many protections and can ease a flexible system design with reduced external components. Using OB235X series, the internal gate drive capability can be adjustable, which can make the system design easy to meet the requirement of output power, EMI and temperature.


Features:

# Integrated high voltage power MOSFET with external adjustable gate drive capability
# Support No Y-Cap design in sub 20W power range
# Low standby power
# Power on with 4ms soft start
# Leading edge blanking on current sense input
# VDD over voltage protection (OVP)
# Overload protection (OLP)
# Built-in line compensated OCP over universal input
# Frequency Shuffling to Improve EMI Performance
# Available in DIP8 and SOP8 packages, RoHS compliant


Applications:

# ^No Y-CAP ̄ Power Supply
# DVD/DVB Set-top Box Power
# PC, Server and LCD TV Standby Power
# Linear/RCC Replacement
# White Goods

Device
MOSFET Rdson(ohm)
Package
Max Pout(W)note
Max Pout(W)(85~264V)
OB2353/L
12
SOP8
8
5
OB2354/L
12
DIP8
16
9
OB2356L
12
SOP8
8
6
OB2357L
12
DIP8
14
9
OB2358/L
5
DIP8
27
12
OB2359L
5
DIP8
25
14
Note: Maximum practical continuous power in an open frame design with sufficient drain pattern as a heat sink, at 50<C ambient, 230Vac input.

Typical Application: