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TEA1733CT 반도체 회로 부품 판매점

GreenChip SMPS control IC



NXP Semiconductors 로고
NXP Semiconductors
TEA1733CT 데이터시트, 핀배열, 회로
TEA1733CT
GreenChip SMPS control IC
Rev. 2 — 16 July 2013
Product data sheet
1. General description
The TEA1733CT is a low cost Switched Mode Power Supply (SMPS) controller IC
intended for flyback topologies. It operates in fixed frequency mode. To reduce
ElectroMagnetic Interference (EMI), frequency jitter has been implemented. Slope
compensation is integrated for Continuous Conduction Mode (CCM) operation.
The TEA1733CT includes OverPower Protection (OPP). This enables the controller to
operate under overpower situations for a limited amount of time.
Two pins, VINSENSE and PROTECT, are reserved for protection purposes. Input
UnderVoltage Protection (UVP) and OverVoltage Protection (OVP), output OVP and
OverTemperature Protection (OTP) can be implemented using a minimal number of
external components.
At low power levels the primary peak current is set to 25 % of the maximum peak current
and the switching frequency is reduced to limit switching losses. The combination of fixed
frequency operation at high output power and frequency reduction at low output power
provides high-efficiency over the total load range.
The TEA1733CT enables low cost, highly efficient and reliable supplies for power
requirements up to 75 W to be designed easily and with a minimum number of external
components.
2. Features and benefits
2.1 Features
SMPS controller IC enabling low-cost applications
Large input voltage range (12 V to 30 V)
Very low supply current during start-up and restart (typically 10 A)
Low supply current during normal operation (typically 0.5 mA without load)
Overpower or high/low line compensation
Adjustable overpower time-out
Adjustable overpower restart timer
Fixed switching frequency with frequency jitter to reduce EMI
Frequency reduction with fixed minimum peak current to maintain high-efficiency at
low output power levels
Slope compensation for CCM operation
Low and adjustable OverCurrent Protection (OCP) trip level


TEA1733CT 데이터시트, 핀배열, 회로
NXP Semiconductors
TEA1733CT
GreenChip SMPS control IC
Adjustable soft start operation
Two protection inputs (for example: for input UVP and OVP, OTP and output OVP)
IC overtemperature protection
3. Applications
All applications requiring efficient and cost-effective power supply solutions up to
75 W.
4. Ordering information
Table 1. Ordering information
Type number
Package
Name
Description
TEA1733CT
SO8
plastic small outline package; 8 leads; body width 3.9 mm
Version
SOT96-1
TEA1733CT
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 2 — 16 July 2013
© NXP B.V. 2013. All rights reserved.
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TEA1733CT

GreenChip SMPS control IC - NXP Semiconductors