TEA1732LTS - GreenChip SMPS control IC

TEA1732LTS是NXP恩智浦公司的一款医用电源转换器产品，TEA1732LTS是GreenChip SMPS control IC，本站介绍了TEA1732LTS的封装应用图解、特点和优点、功能等，并给出了与TEA1732LTS相关的NXP元器件型号供参考。

TEA1732LTS - GreenChip SMPS control IC - 医用电源转换器 - AC/DC转换器 - 恩智浦

产品描述

The TEA1732LTS is a low cost Switched Mode Power Supply (SMPS) controller ICintended for flyback topologies. The TEA1732LTS 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 TEA1732LTS IC features OverPower Protection (OPP). The controller accepts anoverpower situation for a limited amount of time.

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

At low-power levels, the primary peak current is set to 25 % 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 TEA1732LTS makes the design of low-cost, highly efficient and reliable supplies forpower requirements up to 75 W easier by requiring a minimum number of externalcomponents.

TEA1732TS TEA1732LTS TEA1732CTS OPP Safe restart Latched to off Safe restart UVLO Safe restart Latched to off Safe restart Brownout Safe restart Safe restart Safe restart Max Duty cycle Safe restart Safe restart Safe restart OVP Latched to off Latched to off Safe restart Ext. OTP Latched to off Latched to off Safe restart Int. OTP Latched to off Latched to off Latched to off

产品特性和优势

SMPS controller IC enabling low-cost applications
Large input voltage range (12 V to 30 V)
Integrated OverVoltage Protection (OVP) on the VCC pin
Accurate OverVoltage Protection (OVP) via the ISENSE pin
Very low supply current during start-up and restart (10 μA typical)
Low supply current during normal operation (0.58 mA typical without load)
Internal overpower time-out
Overpower protection or 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
Frequency increase at peak power operation
Slope compensation for CCM operation
Integrated soft-start
Low and adjustable OverCurrent Protection (OCP) trip level
Mains undervoltage protection (brownout)
External OverTemperature Protection (OTP)
IC overtemperature protection

产品应用

All applications that require an efficient and cost-effective power supply solution up to75 W.

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