TC962COE

Voltage - Output (Min/Fixed):	-Vin, 2Vin, Vin/2
Base Part Number:	TC962
Supplier Device Package:	16-SOIC
Package / Case:	16-SOIC (0.295", 7.50mm Width)
Mounting Type:	Surface Mount
Operating Temperature:	0°C ~ 70°C (TA)
Synchronous Rectifier:	No
Frequency - Switching:	12kHz ~ 24kHz
Current - Output:	80mA
Voltage - Output (Max):	--
Series:	--
Voltage - Input (Max):	18V
Voltage - Input (Min):	3V
Number of Outputs:	1
Output Type:	Fixed
Topology:	Charge Pump
Output Configuration:	Positive or Negative
Function:	Ratiometric
Part Status:	Active
Packaging:	Tube

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Introduction to TC962COE

The TC962COE is a switching regulator integrated circuit (IC) that is available from Toshiba. It is used in DC-DC conversion applications and is a part of their highly reliable MOSFET switch mode DC/DC converter family. The TC962COE provides a wide range of input voltages and output current ratings to meet the various demands of the users.

Application Field

The TC962COE is a high-efficiency and low-noise switching regulator commonly used in power applications. It is suitable for both synchronous buck and non-synchronous buck conversion applications. Solutions with the TC962COE offer good thermal performance and have been found to offer low EMI risk. The switching regulator IC is used in various environments where power needs to be efficiently managed including servers, network equipment, power supplies, LED lighting, and portable electronics.

Working Prinicple

The TC962COE operates as an isolated high-frequency switch mode DC/DC converter (SMD) for a wide range of input voltages (DC 4.5 V – 50 V). It works by converting a higher input voltage to a lower output voltage for applications where a small voltage output is required. It does this by switching the input voltage on and off rapidly and filtering it in order to get the desired output voltage. In essence, the TC962COE acts as a switch or a chopper. When the switch is closed, a resistive load is created across the input voltage and the stored energy is drained from the capacitor, resulting in a decrease in the output voltage. When the switch is opened, the stored energy is recharged and the output voltage is increased above its original value. The output voltage can be adjusted with a simple, low-cost control loop network consisting of an oscillator, error amplifier and resistive divider network. The oscillator produces a triangle waveform which provides the switching frequency for the MOSFET switch. This triangle waveform is compared to the error amplifier, which produces the output voltage regulation, by controlling the switching frequency. The resistive divider network senses the output voltage and sends it back to the error amplifier. The output voltage is then regulated at the predetermined levels.

Conclusion

The TC962COE is a versatile and reliable high frequency switch mode DC/DC converter. It is suitable for a wide range of input voltages and output current ratings, making it a popular choice for a variety of power management application fields. It works by rapidly switching the input voltage on and off and filtering it in order to get the desired output voltage. The output voltage is regulated with a simple, low-cost control loop network consisting of an oscillator, error amplifier and resistive divider network.

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