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Description
STRL472 is a one of STR-L400 series ICs which is made of integrated MOSFET and a controller chip for application in quasi-resonant switching power supply which are all in one package. The IC is characterizes with achieving high efficiency and low noise power supply system. STRL472 IC highly recommended for system requiring low-height, enough creepage isolation between high and low voltage terminals of SIP-10L model package should be at least 6.5mm.
SIP-10L one package pin-out for STRL472, the terminal pins are counted from left to right.
STRL472 IC has 10 pins but only 8 have terminals and functional. 6 input and 2 output pins, the non-inverting and inverting input pins are protected from overload.
Pin No. | Pin Name | Description |
1-4 | D | MOSFET Drain |
6 | S | MOSFET Source |
7,10 | GND | Ground |
8 | Vin | Power supply circuit control input |
9 | OCP/FB | Overcurrent detection signal input/constant voltage control signal input |
Terminal 1 to 6 electrical characteristics in MOSFET: ON resistance, drain leakage current, drain source voltage, switching time. Terminal 8 to 10 control circuit electrical characteristics: power dissipation in control, operating start and stop voltage, circuit current in operation and non-operation.
STRL472 Specifications and features
The IC is characterized with high protection set of features which help achieve low component count and high performance in relation to cost power supply. It has many built-in circuitries for protection and control.
· STRL472 is a power integrated circuit.
· Built-in oscillator which operates at low frequencies
· Current control mode
· Quasi-resonant operation
· Compensation of input at over current
· SIP10L full model package for home appliances (white goods) power supply.
· Straight lead pitch 2.54mm
· Operates with low frequency of 50μs OFF time, which help to reduce stress time on components
during load-short and start-up
· It has several built-in protection features :
Over current protection (OCP): pulse by pulse
Over voltage protection (OVP): latch shutdown
Thermal shutdown protection (TSD): latch shutdown
Overload protection (OLP): latch shutdown
Control method | Quasi resonant |
Type | Power IC |
Output Current | 35 W |
RDS (ON) (max.) | 7.7? |
VDSS (min.) | 900 V |
VCC (max.) | 35 V |
Oscillating Frequency | - Hz |
OCP | YES |
OLP | None |
OVP | Latch |
Brown-in / out | NO |
TSD | Latch |
Working principle of STRL472
For start-up operation the startup circuit detects voltage at the input terminal to affect start/stop operation of the power IC.
Constant voltage control circuit operation the current control mode is used to control the output voltage by selecting one with is stable and has superior transient responsibility.
Quasi-resonant operation the turning ON is done at Vds do reduce switching loss and noise. This results to low noise and achieves high efficiency.
Application of STRL472
STRL472 Power IC has many applications because of it many features such as Quasi-Resonant type switching power supply with high efficiency.
White goods- home large appliances such as washing machine, refrigerator they use a lot of power.
The power IC is also used in communication system, power supplies, LEDs drives, audio, induction cookers, computers, smart home and much other electrical and electronic equipment.
Some Part number from the same manufacture
Same catergory
10000 buyer reviews from United States
Daniel Moore
Length of registration:7 years
The STRL472 integrated circuit is an excellent choice for a variety of applications. It is a highly reliable and efficient circuit that offers great performance and stability. The circuit is easy to use and has a wide range of features that make it suitable for a variety of applications. The circuit is also cost effective and provides a great value for money. The circuit is also highly reliable an
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Reply0
03/17/2023
Alison
Length of registration:9 years
Many suppliers are out of stock, and the stock here is very complete and the price is still low. It is the original, the quality is very good, the workmanship is very delicate, the logistics is fast, the customer service attitude is very good, the packaging is very tight and no damage.
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Reply0
08/31/2022
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STRL472
STRL472 has several brands around the world that may have alternate names for STRL472 due to regional differences or acquisition. STRL472 may also be known as the following names:
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