SMPS

ST9S429-PG14 Datasheet – SMPS Supervisor ( PDF )

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Part Number: ST9S429-PG14 ( = S3515 )

Function: SMPS Supervisor, Monitoring IC

Package: 14Pin Type

Manufacturer: SITRONIX,  Infinno Technology, UTC

Image:

ST9S429-PG14

Description

The IC is specially designed for switching power supply system. It provides over-voltage protection, over-current protection, under-voltage protection, on/off control and power good signal generating.
OVP/UVP (Over/Under-Voltage Protection) monitors 3.3V, 5V and double 12V to protect our power supply and PC, FPO goes to high when one of these supply voltages exceeds their normal operation voltage range.

Ordering Informations

ST9S429-PG14 Datasheet

The power supply is turned on after 38mS de-bounce time when PSON signal is set from high to low. To turn off power supply, PSON signal is set from low to high and the de-bounce time is 115mS. When PGI input voltage level is lower than the internal 1.15V reference voltage, after 73uS de-bounce time, the PGO signal is pulled low.

Pinout

ST9S429-PG14 pinout

 

ST9S429-PG14 Datasheet


 

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TEA1738T Datasheet PDF – GreenChip SMPS control IC

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Part Number: TEA1738T

Function: GreenChip SMPS control IC

Package: SO 8 Pin Type

Manufacturer: NXP Semiconductors.

Pinouts:

TEA1738T datasheet

 

Description

The TEA1738, TEA1738T, TEA1738LT are a low cost Switched Mode Power Supply (SMPS) controller IC intended for flyback topologies. The TEA1738(L) operates in peak current and frequency control mode. Frequency jitter has been implemented to reduce ElectroMagnetic Interference (EMI). Slope compensation is integrated for Continuous Conduction Mode (CCM) operation.

The TEA1738(L) IC includes OverPower Protection (OPP). This enables the controller to operate under overpower situationsfor a limited amount of time. Two pins, VINSENSE and PROTECT, are reserved for protection purposes. Input UnderVoltage Protection (UVP), output OverVoltage Protection (OVP) and OverTemperature Protection (OTP) can be implemented using a minimal number of external components.

Features

1. SMPS controller IC enabling low-cost applications

2. Large input voltage range (12 V to 30 V)

3. Integrated OverVoltage Protection (OVP) on pin VCC

4. Very low supply current during start-up and restart (10 μA typical)

5. Low supply current during normal operation (0.55 mA typical without load)

 

TEA1738T Datasheet PDF Download


TEA1738T pdf

Other data sheets are available within the file: TEA1738LT, TEA1738