TEA1532AT NXP Semiconductors, TEA1532AT Datasheet

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TEA1532AT

Manufacturer Part Number
TEA1532AT
Description
Manufacturer
NXP Semiconductors
Datasheet

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1. General description
2. Features
2.1 Distinctive features
2.2 Green features
2.3 Protection features
The GreenChip™II is the second generation of green Switched Mode Power Supply
(SMPS) controller ICs. Its high level of integration allows the design of a cost effective
power supply with a very low number of external components.
The TEA1532(A)P; TEA1532(A)T can also be used in fixed frequency, Continuous
Conduction Mode (CCM) converter designs for low voltage, high current applications. At
low power (standby) levels, the system operates in cycle skipping mode which minimizes
the switching losses during standby.
The special built-in green functions allow the efficiency to be optimum at all power levels.
This holds for quasi-resonant operation at high power levels, as well as fixed frequency
operation with valley switching at medium power levels. At low power (standby) levels, the
system operates in cycle skipping mode with valley detection.
The proprietary high voltage BCD800 process makes direct start-up possible from the
rectified universal mains voltage in an effective and green way. A second low voltage
BICMOS IC is used for accurate, high speed protection functions and control.
The TEA1532(A)P; TEA1532(A)T enables highly efficient and reliable supplies to be
designed easily.
TEA1532(A)P; TEA1532(A)T
GreenChip II SMPS control IC
Rev. 02 — 4 February 2005
Universal mains supply operation (70 V to 276 V AC)
High level of integration, resulting in a very low external component count
Fixed frequency Continuous Conduction Mode (CCM) operation capability
Quasi-Resonant (QR) Discontinuous Conduction Mode (DCM) operation capability.
Valley or zero voltage switching for minimum switching losses in QR operation
Cycle skipping mode at very low loads; input power < 300 mW at no-load operation for
a typical adapter application
On-chip start-up current source.
Safe restart mode for system fault conditions
Zero current switch-on in QR mode
Product data sheet

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TEA1532AT Summary of contents

Page 1

TEA1532(A)P; TEA1532(A)T GreenChip II SMPS control IC Rev. 02 — 4 February 2005 1. General description The GreenChip™II is the second generation of green Switched Mode Power Supply (SMPS) controller ICs. Its high level of integration allows the design of ...

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... Low and adjustable OverCurrent Protection (OCP) trip level Soft (re)start Mains voltage-dependent operation-enabling level TEA1532AP and TEA1532AT: General purpose input for latched or safe restart protection and timing, e. used for overvoltage protection (OVP), output short-circuit protection or system OTP. TEA1532P and TEA1532T: General purpose input for latched protection and timing, e ...

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... CURRENT SOURCE I prot(dem) VALLEY clamp 80 mV DRIVER LEB soft start blank S2 OCP BROWN-OUT DCM and CCM PROTECTION TEA1532T S Q TEA1532AT TEA1532P R Q TEA1532AP V CC < 4.5 V © Koninklijke Philips Electronics N.V. 2005. All rights reserved. 8 DRAIN 5 DEM DRIVER SENSE coa014 ...

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... IC situated at the primary side. An auxiliary winding of the transformer provides demagnetization detection and powers the IC after start-up; see 9397 750 14319 Product data sheet TEA1532(A)P; TEA1532(A DRAIN GND DRIVER TEA1532T TEA1532AT 3 6 SENSE CTRL 4 5 DEM 001aaa829 (SOT96-1) Pin description Pin Description 1 supply voltage ...

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... To prevent very high frequency operation at lower loads, the quasi-resonant operation changes smoothly in fixed frequency Pulse Width Modulation (PWM) control. 9397 750 14319 Product data sheet TEA1532(A)P; TEA1532(A VIN VCC TEA1532T 2 7 TEA1532AT TEA1532P 3 6 TEA1532AP 4 5 coa015 f (kHz) Cycle fixed skip 63 Rev. 02 — 4 February 2005 GreenChip II SMPS control IC Figure 5 ...

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Philips Semiconductors In fixed frequency continuous conduction mode, which can be activated by grounding pin DEM, the internal oscillator determines the start of the next converter stroke. In both operating modes, a cycle skipping mode is activated at very low ...

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Philips Semiconductors 7.4 Oscillator The fixed frequency of the oscillator is set by an internal current source and capacitor. 7.5 Cycle skipping At very low power levels, a cycle skipping mode activates. An internal control voltage (V sense(max) this voltage ...

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... A MOSFET switch is added to discharge the external capacitor and ensure a defined start situation. For the TEA1532AP and the TEA1532AT, the voltage on pin CTRL determines whether the IC enters latched protection mode, or safe restart protection mode: 9397 750 14319 Product data sheet TEA1532(A)P ...

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Philips Semiconductors • When the voltage on pin CTRL is below 0.63 V, the IC is assumed to be out of regulation (e.g. the control loop is open). In this case activating pin PROTECT (V PROTECT V UVLO repeated until ...

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Philips Semiconductors (1) Start of new cycle at lowest drain voltage. (2) Start of new cycle in a classical PWM system at high drain voltage. Fig 8. Signals for valley switching 7.14 Brown-out protection During the so called brown-out test, ...

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Philips Semiconductors When pin DEM is grounded (CCM), the brown-out protection is disabled. In this case the duty cycle is limited to 0. low mains voltage the on-time is limited and therefore the dissipation in the FET is ...

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Philips Semiconductors 7.17 Driver The driver circuit to the gate of the power MOSFET has a current sourcing capability of typically 170 mA and a current sink capability of typically 700 the current ...

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Philips Semiconductors 9. Thermal characteristics Table 4: Thermal characteristics Symbol Parameter R thermal resistance from th(j-a) junction to ambient 10. Characteristics Table 5: Characteristics all voltages are measured with respect to ground ...

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Philips Semiconductors Table 5: Characteristics …continued all voltages are measured with respect to ground (pin 2); currents are positive when flowing into amb CC the IC; unless otherwise specified. Symbol Parameter Oscillator ...

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... Parameter Temperature protection T maximum temperature prot(max) protection level T hysteresis for the temperature prot(hyst) protection level [1] TEA1532AP and TEA1532AT: safe restart; TEA1532P and TEA1532T: latch. [2] Guaranteed by design. [3] V detection level. Set by the demagnetization resistor R i [4] Valid for V > 11. Application information A converter with the TEA1532(A)P ...

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... Philips Semiconductors Fig 10. Flyback configuration using the discontinuous conduction mode 9397 750 14319 Product data sheet TEA1532(A)P; TEA1532(A)T V mains GND TEA1532T 2 TEA1532AT PROTECT TEA1532P 3 TEA1532AP CTRL 4 R CTRL Rev. 02 — 4 February 2005 GreenChip II SMPS control IC DRAIN 8 power DRIVER ...

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Philips Semiconductors DRAIN start DRIVER V PROTECT (1) In CCM, the brown-out protection is implemented by the maximum duty cycle in combination Fig 11. Typical waveforms 1 9397 750 ...

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... Philips Semiconductors (1) When V (2) External OTP for TEA1532T, TEA1532P, TEA1532AT and TEA1532AP; OVP and output short Fig 12. Typical waveforms 2 9397 750 14319 Product data sheet TEA1532(A)P; TEA1532(A DRAIN start DRIVER (1) V PROTECT Start-up sequence is forced above 3 V, the protection is always latched. So the IC is not started at ...

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... Test information 12.1 Quality information The General Quality Specification for Integrated Circuits, SNW-FQ-611 is applicable. 9397 750 14319 Product data sheet TEA1532(A)P; TEA1532(A)T V mains GND TEA1532T 2 TEA1532AT (1) TEA1532P PROTECT 3 TEA1532AP CTRL 4 R slopecomp R CTRL protection. Slope compensation is determined by the value of R Rev. 02 — ...

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Philips Semiconductors 13. Package outline SO8: plastic small outline package; 8 leads; body width 3 pin 1 index 1 DIMENSIONS (inch dimensions are derived from the original mm dimensions) A UNIT ...

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Philips Semiconductors DIP8: plastic dual in-line package; 8 leads (300 mil pin 1 index 1 DIMENSIONS (inch dimensions are derived from the original mm dimensions UNIT max. min. max. mm 4.2 0.51 ...

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Philips Semiconductors 14. Soldering 14.1 Introduction This text gives a very brief insight to a complex technology. A more in-depth account of soldering ICs can be found in our Data Handbook IC26; Integrated Circuit Packages (document order number 9398 652 ...

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Philips Semiconductors – for packages with a thickness – for packages with a thickness < 2.5 mm and a volume thick/large packages. • below 240 C (SnPb process) or below 260 C (Pb-free process) for packages with a thickness < ...

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Philips Semiconductors 14.4 Package related soldering information Table 6: Suitability of IC packages for wave, reflow and dipping soldering methods Mounting Package Through-hole mount CPGA, HCPGA DBS, DIP, HDIP, RDBS, SDIP, SIL [4] Through-hole-surface PMFP mount Surface mount BGA, HTSSON..T ...

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... Philips Semiconductors 15. Revision history Table 7: Revision history Document ID Release date TEA1532_2 20050204 • Modifications: Products TEA1532AT and TEA1532AP added: – Updated – Updated – Changed product numbers in • Added note to • Modified TEA1532_1 20040528 9397 750 14319 Product data sheet TEA1532(A)P ...

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Philips Semiconductors 16. Data sheet status [1] Level Data sheet status Product status I Objective data Development II Preliminary data Qualification III Product data Production [1] Please consult the most recently issued data sheet before initiating or completing a design. ...

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Philips Semiconductors 21. Contents 1 General description . . . . . . . . . . . . . . . . . . . . . . 1 2 Features . . . . . . . . ...

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