TEA1832TS - GreenChip SMPS control IC

TEA1832TS是NXP恩智浦公司的一款医用电源转换器产品，TEA1832TS是GreenChip SMPS control IC，本站介绍了TEA1832TS的封装应用图解、特点和优点、功能等，并给出了与TEA1832TS相关的NXP元器件型号供参考。

TEA1832TS - GreenChip SMPS control IC - 医用电源转换器 - AC/DC转换器 - 恩智浦

产品描述

The TEA1832TS is a low-cost Switched Mode Power Supply (SMPS) controller ICintended for flyback topologies. The TEA1832TS operates in peak current and frequencycontrol mode. Frequency jitter has been implemented to reduce ElectroMagneticInterference (EMI). Slope compensation is integrated for Continuous Conduction Mode(CCM) operation.

The TEA1832TS IC features OverPower Protection (OPP). The controller accepts anoverpower situation up to 200 % for a limited amount of time.

Mains undervoltage protection (brownin/brownout), output OverVoltage Protection (OVP),and OverTemperature Protection (OTP) can be implemented using a minimal number ofexternal components.

At low-power levels, the primary peak current is set to 22 % of the maximum peak current.The switching frequency is reduced to limit the switching losses. The combination of fixedfrequency operation at high output power and frequency reduction at low output powerprovides high efficiency over the total load range.

The TEA1832TS makes the design of low-cost, highly efficient and reliable supplieseasier by requiring a minimum number of external components. The device is especiallysuited for medium power applications.

产品特性和优势

SMPS controller IC enabling low-cost applications
Large input voltage range (10.5 V to 36 V)
Integrated OverVoltage Protection (OVP) on the VCC pin
Accurate OverVoltage Protection (OVP) via the ISENSE pin
Dedicated burst mode, allowing a low VCC capacitor value
Very low supply current during start-up and restart (11?μA typical)
Low supply current during normal operation (0.58 mA typical without load)
Adaptive internal overpower time-out
Overpower protection including high/low line compensation
Fixed switching frequency with frequency jitter to reduce EMI
Frequency reduction with fixed minimum peak current to maintain high efficiency atlow output power levels
Peak power operation up to 200 % by frequency increase and peak current increase
Slope compensation for CCM operation
Integrated soft-start
Drive capability 300 mA source, 750 mA sink
Maximum duty cycle set at 90 %
Mains undervoltage protection (brownin/brownout)
Output Short Circuit Protection (OSCP), avoiding transformer saturation
External OverTemperature Protection (OTP)
IC overtemperature protection
Internal VCC OVP, external OVP, internal OTP, and external OTP are latchedprotections; all other protections cause a restart

产品应用

All applications that require an efficient and cost-effective power supply solution. TheTEA1832TS is especially suited for medium power applications.

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