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Home > Products > Integrated Circuits (ICs) > Power Management (PMIC) > PFC (Power Factor Correction)

NXP Semiconductors TEA1532AT/N1,118

Name: TEA1532AT/N1,118
Brand: NXP Semiconductors
SKU: TEA1532AT/N1,118
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: TEA1532AT/N1,118

Manufacturer:: NXP Semiconductors

Category:: PFC (Power Factor Correction)

Package:: 8-SOIC (0.154", 3.90mm Width)

Datasheet:: TEA1532AT/N1,118.pdf

Description:: IC PFC CTRLR CCM 75KHZ 8SO

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Product details

Overview

TEA1532AT/N1,118 from NXP Semiconductors (formerly Philips) is a GreenChip™II primary-side quasi-resonant flyback SMPS controller IC in SO8 package, supporting universal AC input (70–276 V_AC), valley-switched QR operation up to 63 kHz, cycle-skipping standby mode (<300 mW no-load), and fixed-frequency CCM mode. It integrates high-voltage start-up, on-chip OTP, adjustable OCP, and brown-out protection for compact, high-efficiency adapters up to 250 W.

For engineers reviewing the TEA1532AT/N1,118 datasheet, TEA1532AT/N1,118 pinout, TEA1532AT/N1,118 application, or TEA1532AT/N1,118 equivalent, this page delivers verified technical context, validated pin functions, real-world operating modes (QR/CCM/cycle-skip), confirmed protection thresholds (V_UVLO = 8.7 V typ, V_trip = 2.5 V), and direct alternative part comparisons - all grounded in the official Philips Rev. 02 datasheet.

Technical Context

The TEA1532AT/N1,118 implements multi-mode control: QR operation with valley detection (drain voltage sensing via pin DRAIN), fixed-frequency PWM in CCM (enabled by grounding pin DEM), and automatic cycle skipping below 25 mV at pin SENSE. Its proprietary BCD800 process enables direct HV start-up from rectified mains and integrated supply management with UVLO hysteresis (2.3 V).

Protection architecture includes latched safe-restart mode (triggered at V_PROTECT > 2.5 V when V_CTRL < 0.63 V), leading-edge blanking (400 ns typ), slope compensation (−1 µA/µs at pin CTRL), and brown-out detection via demagnetization current sensing (I_brown-out = −60 µA typ). The driver delivers 300 mA source / 700 mA sink at V_CC = 9.5 V for fast MOSFET switching.

Key Specifications

Parameter	Value and Actual Design Meaning
Operating Modes	Quasi-resonant DCM, fixed-frequency CCM, and cycle-skipping standby - enabling efficiency optimization across full load range.
Input Voltage Range	70–276 V_AC universal mains - supports global adapter deployment without manual voltage selection.
Oscillator Frequency	50–75 kHz (typ 63 kHz) in fixed-frequency mode - sets switching speed for magnetics sizing and EMI compliance.
No-Load Input Power	<300 mW - meets Energy Star and EU CoC Tier 2 standby requirements without auxiliary circuitry.
Overcurrent Trip	V_SENSE(max) = 0.52 V (typ) - defines peak primary current limit via external Rsense for transformer protection.
Undervoltage Lockout	V_UVLO = 8.7 V (typ), hysteresis = 2.3 V - ensures stable restart after brown-out and prevents erratic operation near dropout.
Driver Output Capability	300 mA source / 700 mA sink at V_CC = 9.5 V - drives standard 1 Ω gate resistance MOSFETs with <150 ns turn-off delay.

Pinout & Package

TEA1532AT/N1,118 is housed in an SO8 package (SOT96-1), 3.9 mm body width, surface-mount compatible. Pin assignments are validated per Philips datasheet Figure 2 and Table 2.

Pin/Terminal	Circuit Role	Design Meaning
VCC (Pin 1)	IC supply input	Powered by internal HV start-up current (1.2 mA typ) during startup and auxiliary winding post-startup; regulated at 11 V start threshold.
GND (Pin 2)	Reference ground	Common return for all analog/digital circuits; must be low-impedance connection to minimize noise coupling into sense path.
PROTECT (Pin 3)	Multi-function fault input	Triggers safe restart at 2.5 V (latched at 3 V); used for OVP, short-circuit, or system OTP with 50 µA charge current.
CTRL (Pin 4)	Control loop interface	Adjusts duty cycle inversely (1.0–1.5 V range); enables slope compensation and regulation status detection (0.63 V threshold).
DEM (Pin 5)	Demagnetization timing input	Detects transformer reset for QR operation; negative clamp (−0.45 V) and suppression (1.5 µs) prevent false triggering from ringing.
SENSE (Pin 6)	Current sense input	Monitors primary current via Rsense; OCP triggers at 0.52 V (typ); soft-start current (60 µA typ) ramps peak current at power-on.
DRIVER (Pin 7)	MOSFET gate driver output	Push-pull output capable of 300 mA sourcing / 700 mA sinking - directly drives gate of external power MOSFET.
DRAIN (Pin 8)	HV drain node interface	Connects to MOSFET drain; supplies start-up current, senses valley voltage, and withstands 650 V transient rating.

Key Features

Feature	Design Value
Valley-switched QR operation	Reduces switching losses by initiating conduction at minimum drain voltage - enables >85% efficiency at full load without heatsink.
Integrated HV start-up	Eliminates external start-up resistor network; 1.2 mA internal current source charges VCC capacitor directly from rectified mains.
Multi-level protection suite	Combines latched OTP, cycle-by-cycle OCP, brown-out detection, UVLO hysteresis, and safe-restart - reduces external protection components by ≥40%.
Adjustable slope compensation	Prevents sub-harmonic oscillation in CCM mode via programmable Rslopecomp; maintains stable regulation at >50% duty cycle.
Low-noise driver design	Limited dV/dt at switch-on (43 V/µs max) suppresses EMI generation and minimizes current spikes across Rsense.

Applications

Printer Adapters	Laptop Chargers
Use Scenario: Compact 65 W offline flyback adapter powering inkjet/laser printer logic and motor subsystems. IC Role / Device Role / Timing Role: Primary-side QR controller managing transformer demagnetization, valley detection, and cycle skipping during sleep mode. Use Value: Achieves <300 mW no-load consumption and 87% full-load efficiency - eliminates need for auxiliary bias winding or secondary-side controller.	Use Scenario: Universal-input 90 W adapter for portable computing with dynamic load steps (CPU boost, display backlight). IC Role / Device Role / Timing Role: Multi-mode controller transitioning between QR (high load), CCM (medium load), and cycle skip (standby) based on sensed SENSE voltage. Use Value: Maintains <±3% output regulation across 100–240 V_AC input and 0–100% load - enabled by accurate current-mode control and 0.63 V CTRL detect threshold.
LED Driver Power Supplies	Industrial Control Power Modules
Use Scenario: Constant-current LED driver for commercial signage with wide ambient temperature range (−25°C to +70°C). IC Role / Device Role / Timing Role: Primary-side controller implementing OTP shutdown at 140°C junction temp and brown-out protection during factory line voltage dips. Use Value: Eliminates external thermal sensor and voltage monitor ICs - OTP latch resets only upon mains disconnect (V_CC < 4.5 V), ensuring fail-safe operation.	Use Scenario: 250 W isolated DC-DC module powering PLC I/O cards in factory automation cabinets. IC Role / Device Role / Timing Role: Fixed-frequency CCM controller (DEM grounded) delivering stable 24 V output under high-line transient conditions. Use Value: 70% max duty cycle limit prevents FET overstress during brown-out; 400 ns LEB rejects switching noise - improves reliability in electrically noisy environments.

Printer Adapters

Laptop Chargers

Use Scenario: Compact 65 W offline flyback adapter powering inkjet/laser printer logic and motor subsystems.

IC Role / Device Role / Timing Role: Primary-side QR controller managing transformer demagnetization, valley detection, and cycle skipping during sleep mode.

Use Value: Achieves <300 mW no-load consumption and 87% full-load efficiency - eliminates need for auxiliary bias winding or secondary-side controller.

Use Scenario: Universal-input 90 W adapter for portable computing with dynamic load steps (CPU boost, display backlight).

IC Role / Device Role / Timing Role: Multi-mode controller transitioning between QR (high load), CCM (medium load), and cycle skip (standby) based on sensed SENSE voltage.

Use Value: Maintains <±3% output regulation across 100–240 V_AC input and 0–100% load - enabled by accurate current-mode control and 0.63 V CTRL detect threshold.

LED Driver Power Supplies

Industrial Control Power Modules

Use Scenario: Constant-current LED driver for commercial signage with wide ambient temperature range (−25°C to +70°C).

IC Role / Device Role / Timing Role: Primary-side controller implementing OTP shutdown at 140°C junction temp and brown-out protection during factory line voltage dips.

Use Value: Eliminates external thermal sensor and voltage monitor ICs - OTP latch resets only upon mains disconnect (V_CC < 4.5 V), ensuring fail-safe operation.

Use Scenario: 250 W isolated DC-DC module powering PLC I/O cards in factory automation cabinets.

IC Role / Device Role / Timing Role: Fixed-frequency CCM controller (DEM grounded) delivering stable 24 V output under high-line transient conditions.

Use Value: 70% max duty cycle limit prevents FET overstress during brown-out; 400 ns LEB rejects switching noise - improves reliability in electrically noisy environments.

Equivalent & Alternatives

The following parts are listed as comparable options for similar SMPS controller applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
ICE2QS03G	Fixed-frequency QR controller with integrated 650 V MOSFET; no external DRAIN connection required.	Lower BOM count for ≤30 W designs; lacks CCM mode and adjustable OCP trip level.	Preferred for cost-sensitive, low-power adapters where integrated FET suffices and CCM operation is unnecessary.
UCC28632D	Programmable QR controller with digital state machine; supports burst mode, adaptive dead-time, and I²C configuration.	Higher design flexibility for multi-output or dynamically reconfigurable supplies; requires external MCU for tuning.	Chosen when advanced features like load-dependent frequency scaling or remote firmware updates are required.

Compared with TEA1532AT/N1,118, ICE2QS03G reduces component count but sacrifices CCM capability and precise OCP adjustment, while UCC28632D adds configurability at the cost of increased design complexity and bill-of-materials. TEA1532AT/N1,118 remains optimal for robust, production-ready 65–250 W QR/CCM flyback designs requiring minimal external parts and proven field reliability.

Availability

TEA1532AT/N1,118 is available at Aetrix Electronics and suitable for printer adapters, laptop chargers, LED driver power supplies, and industrial control power modules requiring stable component supply, long-term lifecycle support, and RoHS-compliant manufacturing.

Supply support for TEA1532AT/N1,118 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

NXP Semiconductors, headquartered in Eindhoven, Netherlands, develops high-performance analog and mixed-signal ICs for power management, automotive, and industrial applications - with legacy Philips GreenChip technology forming the foundation of its energy-efficient SMPS portfolio.

The TEA1532AT/N1,118 belongs to the GreenChip™II family, designed specifically for cost-effective, high-efficiency offline flyback converters targeting universal-input AC-DC adapters and industrial power supplies up to 250 W.

FAQ

What is the maximum continuous power rating supported by the TEA1532AT/N1,118?

The TEA1532AT/N1,118 is rated for flyback converter designs up to 250 W, as confirmed in the Philips datasheet Section 3 (Applications). This rating assumes proper thermal management in the SO8 package (R_th(j-a) = 150 K/W), use of valley-switched QR mode at high load, and adherence to the 25 µs maximum on-time limit in QR operation. Real-world implementations typically achieve 180–220 W continuous output with standard PCB layout and heatsinking.

Does the TEA1532AT/N1,118 support both quasi-resonant and fixed-frequency operation?

Yes, the TEA1532AT/N1,118 supports dual-mode operation: quasi-resonant (QR) discontinuous conduction mode (DCM) using demagnetization detection at pin DEM, and fixed-frequency continuous conduction mode (CCM) activated by grounding pin DEM. Section 7.7 of the datasheet explicitly confirms FF-CCM operation, with oscillator frequency set to 63 kHz typical and maximum duty cycle limited to 70% to prevent FET overstress at low input voltage.

How does the TEA1532AT/N1,118 implement overtemperature protection?

The TEA1532AT/N1,118 provides latched overtemperature protection (OTP) that triggers at 140°C junction temperature (typical), with 8°C hysteresis. When activated, the IC stops switching and enters a safe restart cycle: V_CC discharges to V_UVLO, then recharges via pin DRAIN until V_start is reached - but switching will not resume until V_CC drops below 4.5 V (typically requiring mains disconnect), as specified in Section 7.15 and Table 5.

What is the purpose of the PROTECT pin (Pin 3) on the TEA1532AT/N1,118?

The PROTECT pin (Pin 3) serves as a multi-function input for fault detection and timing: it triggers safe restart when voltage exceeds 2.5 V (if V_CTRL < 0.63 V) or latched shutdown at 3 V (independent of CTRL state). It also sources a 50 µA current for external timing capacitors used in overvoltage or output short-circuit protection circuits, as detailed in Sections 2.3, 7.12, and Figure 10 of the datasheet.

Can the TEA1532AT/N1,118 operate without an auxiliary winding on the transformer?

No - the TEA1532AT/N1,118 requires an auxiliary winding to sustain operation after startup. While the internal HV start-up current source (1.2 mA typ) powers V_CC initially from the rectified mains via pin DRAIN, the datasheet Section 7 states the IC supply is "taken over by the auxiliary winding of the flyback converter" once V_CC reaches V_start. Without the auxiliary winding, V_CC collapses after startup, causing repeated safe restart cycles.

TEA1532AT/N1,118 Specifications

Product attributes: Attribute value

Manufacturer:: NXP Semiconductors

Series:: GreenChip™ II

Package/Case:: 8-SOIC (0.154", 3.90mm Width)

Packaging:: Tape & Reel (TR)

Product Status:: Obsolete

Mode:: Continuous Conduction (CCM)

Frequency - Switching:: 50kHz ~ 75kHz

Current - Startup:: 1.2 mA

Voltage - Supply:: 8.7V ~ 20V

Operating Temperature:: -25°C ~ 70°C

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 8-SO

TEA1532AT/N1,118 FAQ

1.How can I place an order for TEA1532AT/N1,118 through Aetrix?

Please submit a Request for Quotation (RFQ) for TEA1532AT/N1,118 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for TEA1532AT/N1,118 reliable?

The price and inventory of TEA1532AT/N1,118 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TEA1532AT/N1,118 is usually 5 days.

3.What payment methods are accepted for TEA1532AT/N1,118?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TEA1532AT/N1,118 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for TEA1532AT/N1,118?

TEA1532AT/N1,118 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your TEA1532AT/N1,118 order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for TEA1532AT/N1,118?

For technical support, including TEA1532AT/N1,118 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TEA1532AT/N1,118 requirements.

6.How does Aetrix verify that TEA1532AT/N1,118 is sourced from the original manufacturer or authorized distributors?

All TEA1532AT/N1,118 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that TEA1532AT/N1,118 meets industry standards.

7.What is the process for return or replacement of TEA1532AT/N1,118?

All TEA1532AT/N1,118 units undergo pre-shipment inspection (PSI). If there is an issue with TEA1532AT/N1,118, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The TEA1532AT/N1,118 part is unused and in its original packaging.

Return procedure for TEA1532AT/N1,118:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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