Controller

TPS40200HD Schematic – Buck DC/DC Controller -TI

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Part Number: TPS40200HD ( Marking 40200S ), TPS40200-HT

Function: High Temperature Wide Input Non-Synchronous Buck DC/DC Controller

Package: SOIC 8 Pin Type

Manufacturer: Texas Instruments

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TPS40200HD DC DC Controller

Description

The TPS40200HD is a flexible nonsynchronous controller with a built-in 200-mA driver for P-channel FETs. The circuit operates with inputs up to 52 V, with a power-saving feature that turns off driver current once the external FET has been fully turned on.

This feature extends the flexibility of the device, allowing it to operate with an input voltage up to 52 V, without dissipating excessive power. The circuit operates with voltage-mode feedback and has feed-forward input-voltage compensation that responds instantly to input-voltage change.

 

TPS40200HD Schematic Pinout

TPS40200HD PDF datasheet

Features

1. Input Voltage Range 5.5 V to 52 V

2. Output Voltage (700 mV to 87% VIN)

3. 200-mA Internal P-Channel FET Driver

4. Voltage Feed-Forward Compensation

Official Homepage: https://www.ti.com/product/TPS40200-HT

TPS40200HD SCHEMATIC Applications


 

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SD6830 Equivalent – PWM+PFM controller – Silan

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Part Number: SD6830

Function: CURRENT MODE PWM+PFM CONTROLLER WITH BUILT-IN HIGH VOLTAGE MOSFET

Package:  DIP 8 Pin type

Manufacturer: Hangzhou Silan Microelectronics  ( http://www.silan.com.cn/ ), AUK

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SD6830 Equivalent

Description

The SD6830 is current mode PWM+PFM controller with built-in oscillator, high voltage MOSFET and frequency reduction function. It features perfect self recovery function. It is used in typical flyback circuit and composed SC/DC converter. It provides 12W continuous output power with wide voltage input of 85V-265V.

Block Diagram

SD6830 block diagram

Features

1. Built-in oscillator
2. Built-in 700V high voltage power switch
3. Fast high voltage start
4. Low start current and low operating current

Pin number Pin name I/O Functional description

1 OB I Start power input, external start resistance
2 VCC I Power input pin
3 GND I Ground pin
4 NC — Dangling feet
5 FB I/O Feedback foot
6 IS I/O Cycle by cycle current sampling pin, external current sampling resistor
7 , 8 OC O High voltage switch output pin, connected to transformer primary coil Functional

 

SD6830 Equivalent

SD6830 Is used in off-line switching power supply integrated circuits. The controller includes an oscillation frequency generator and various protection functions. by IS The terminal resistance can
adjust the limit peak current. At light load, the circuit adopts green mode, which can effectively reduce the standby power consumption of the circuit. Protection functions include: undervoltage, overvoltage,
overload, short circuit and temperature protection.

SD6830 Datasheet

SD6830 pdf


 

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