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Fuji
Fuji Electric
Description : PWM control IC with light load power saving function For switching power supply control

The FA3641P(N) and FA3647P(N) are the PWM type switching power supply control ICs that can directly drive power MOSFET. These ICs use a CMOS device with High dielectric strength (30V) to implement low power consumption. They feature a number of functions that are equivalent to those of the FA531X series consisting of bipolar devices.

Description : High Speed Current Mode PWM control IC for switching power supply

Description
The HA17384S/H and HA17385H are PWM control switching regulator IC series suitable for Highspeed, current-mode switching power supplies. With ICs from this series and a few external parts, a small, low cost flyback-transformer switching power supply can be constructed, which facilitates good line regulation by current mode control. Synchronous operation driven after an external signal can also be easily obtained which offers various applications such as a power supply for monitors small multi-output power supply.

Features
High-safety UVL circuit is used (Both VIN and Vref are monitored)
High speed operation:
   - Current detection response time: 100 ns Typ
   - Maximum oscillation frequency: 500 kHz
• Low standby current: 170 µA Typ
• Wide range dead band time
   (Discharge current of timing capacitance is constant 8.4 mA Typ)
• Able to drive power MOSFET directly
   (Absolute maximum rating of output current is ±1 A peak)
• OVP function (over voltage protection) is included *1
   (Output stops when FB terminal voltage is 7.0 V Typ or Higher)
• TSD function (thermal shut-down protection) is included *1
   (Output stops when the temperature is 160°C Typ or Higher)
• Zener protection is included
   (Clamp voltage between VIN and GND is 34 V Typ)
• Wide operating temperature range:
   - Operating temperature: –20°C to +105°C
 - Junction temperature: 150°C *2

 

Description : High Speed Current Mode PWM control IC for switching power supply

Description
The HA17384S/H and HA17385H are PWM control switching regulator IC series suitable for Highspeed, current-mode switching power supplies. With ICs from this series and a few external parts, a small, low cost flyback-transformer switching power supply can be constructed, which facilitates good line regulation by current mode control. Synchronous operation driven after an external signal can also be easily obtained which offers various applications such as a power supply for monitors small multi-output power supply.

Features
•  High-safety UVL circuit is used (Both VIN and Vref are monitored)
•  High speed operation:
⎯ Current detection response time: 100 ns Typ
⎯ Maximum oscillation frequency: 500 kHz
•  Low standby current: 170 µA Typ
•  Wide range dead band time (Discharge current of timing capacitance is constant 8.4 mA Typ)
•  Able to drive power MOSFET directly (Absolute maximum rating of output current is ±1 A peak)
•  OVP function (over voltage protection) is included *1 (Output stops when FB terminal voltage is 7.0 V Typ or Higher)
•  TSD function (thermal shut-down protection) is included *1
(Output stops when the temperature is 160°C Typ or Higher)
•  Zener protection is included (Clamp voltage between VIN and GND is 34 V Typ)
•  Wide operating temperature range:
⎯ Operating temperature: –20°C to +105°C
⎯ Junction temperature: 150°C *2
Notes: 1.  H series only.
         2.  S series only.

Functions
•  Under-voltage lockout system
•  Reference voltage regulator of 5.0 V ± 2%
•  Triangular wave (sawtooth) oscillator
•  Error amplifier
•  Totem pole output driver circuit (direct driving for power MOS FETs)
•  Current-detection comparator circuit for current mode
•  OVP function (over voltage protection) *1
•  TSD function (thermal shut-down protection) *1
•  Protect function by zener diode (between power input and GND)
   Note: 1. H series only.

Part Name(s) : FA7630CP FA7630CPE
Fuji
Fuji Electric
Description : Bipolar IC For switching power supply control

■ Description
The FA7630CP(E) is dual channel PWM-type switching power supply control IC.
This IC can drive Pch-MOSFET directly and is optimum for large power DC-DC converter.
This IC has all the necessary protection functions for a power MOSFET. It is optimum for a portable equipment power supply which uses low-voltage input to output comparably large power.

■ Features
• Dual channel PWM-type switching power supply control
• ±2.6% (VREF) and ±3% (VB) reference voltage
• Low voltage operation (Vcc: 5 to 20V)
• Drive circuit for connecting a Pch-MOSFET
• Overload cutoff circuit with timer latch circuit
• Soft start circuit
• Undervoltage lockout function (UVLO)
• Pulse-by-pulse overcurrent limiting function
• Output ON/OFF control function for each channel
• Master-slave synchronized operation without external components
• Maximum operating frequency is 500kHz

 

Part Name(s) : FA7630CP FA7630CPE
Collmer
Collmer Semiconductor
Description : Bipolar IC For switching power supply control

■ Description
The FA7630CP(E) is dual channel PWM-type switching power supply control IC.
This IC can drive Pch-MOSFET directly and is optimum for large power DC-DC converter.
This IC has all the necessary protection functions for a power MOSFET. It is optimum for a portable equipment power supply which uses low-voltage input to output comparably large power.

■ Features
• Dual channel PWM-type switching power supply control
• ±2.6% (VREF) and ±3% (VB) reference voltage
• Low voltage operation (Vcc: 5 to 20V)
• Drive circuit for connecting a Pch-MOSFET
• Overload cutoff circuit with timer latch circuit
• Soft start circuit
• Undervoltage lockout function (UVLO)
• Pulse-by-pulse overcurrent limiting function
• Output ON/OFF control function for each channel
• Master-slave synchronized operation without external components
• Maximum operating frequency is 500kHz

 

Intersil
Intersil
Description : power control IC Single Chip Dual switching power supply

power control IC Single Chip Dual switching power supply

The HIP5062 is a complete power control IC, incorporating two High power DMOS transistors, CMOS logic and two low level analog control circuits on the same Intelligent power IC. Both the standard “Boost” and the “SEPIC” (SingleEnded Primary Inductance Converter) power supply topologies are easily implemented with this single control IC.

Features
• Two Current Mode control Regulators
• Two 60V, 5A On-chip DMOS Transistors
• Thermal Protection
• Over-voltage Protection
• Over-Current Protection
• 1MHz Operation or External Clock
• Synchronization Output
• On-Chip Reference voltage - 5.1V
• Output Rise and Fall Times ~ 3ns
• Designed for 26V to 42V Operation

Applications
• Single Chip power Supplies
• Current Mode PWM Applications
• Distributed power Supplies
• Multiple Output Converters

Collmer
Collmer Semiconductor
Description : Bipolar IC For switching power supply control

■ Description
The FA5301BP(N) is a bipolar IC containing basic circuits necessary for PWM-type switching power supply control. This IC switches an external transistor according to external synchronizing pulses.

■ Features
• External synchronization input terminal
• Wide supply voltage range (VCC =7 to 22V)
• Open-collector output
• Soft-start from standby mode
• Double protection of output transistor by overcurrent limiting and cutoff functions
• Output ON/OFF control function
• Not many external discrete components needed

■ Applications
switching power supply for general equipment(Optimum for TV, display, and other monitor devices)

 

Fuji
Fuji Electric
Description : Bipolar IC For switching power supply control

■ Description
The FA5301BP(N) is a bipolar IC containing basic circuits necessary for PWM-type switching power supply control. This IC switches an external transistor according to external synchronizing pulses.

■ Features
• External synchronization input terminal
• Wide supply voltage range (VCC =7 to 22V)
• Open-collector output
• Soft-start from standby mode
• Double protection of output transistor by overcurrent limiting and cutoff functions
• Output ON/OFF control function
• Not many external discrete components needed

■ Applications
switching power supply for general equipment(Optimum for TV, display, and other monitor devices)

 

Part Name(s) : FA3635P
Collmer
Collmer Semiconductor
Description : CMOS IC For switching power supply control

■ Description
FA3635P is a CMOS IC which includes low on-resistance power MOSFET for PWM-type switching power supply control. This IC achieves High efficiency DC-DC converter and it is suitable for buck converter or inverting converter with High input voltage of 10V to 50V.

■ Features
• Built-in low on-resistance Pch power MOSFET 50V/1.1Ω(typ.)/1A(peak)
• Wide range of 10V to 50V for input voltage
• 1.2mA low operating current as a power IC
• Latch-mode short-circuit protection function
• Built-in over-temperature protection Tj =125°C (min.)

■ Applications
power supply for general equipment

Part Name(s) : FA3635P
Fuji
Fuji Electric
Description : CMOS IC For switching power supply control

■ Description
FA3635P is a CMOS IC which includes low on-resistance power MOSFET for PWM-type switching power supply control. This IC achieves High efficiency DC-DC converter and it is suitable for buck converter or inverting converter with High input voltage of 10V to 50V.

■ Features
• Built-in low on-resistance Pch power MOSFET 50V/1.1Ω(typ.)/1A(peak)
• Wide range of 10V to 50V for input voltage
• 1.2mA low operating current as a power IC
• Latch-mode short-circuit protection function
• Built-in over-temperature protection Tj =125°C (min.)

■ Applications
power supply for general equipment

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