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

Infineon Technologies TDA16888G

Name: TDA16888G
Brand: Infineon Technologies
SKU: TDA16888G
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: TDA16888G

Manufacturer:: Infineon Technologies

Category:: PFC (Power Factor Correction)

Package:: 20-SOIC (0.295", 7.50mm Width)

Datasheet:: TDA16888G.pdf

Description:: IC PFC CTR AVERAGE 200KHZ DSO-20

Quantity:: RFQ Add To RFQ list

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Inventory:1,275

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Product details

Overview

TDA16888G from Infineon Technologies is a high-performance PWM+PFC combi controller IC designed for off-line AC/DC power supplies operating from 90 V to 270 V AC input. It integrates synchronized PFC (boost/flyback) and PWM (forward/flyback) controllers with dual-loop average-current-mode PFC, 94% max PFC duty cycle, 50% max PWM duty cycle, 15–200 kHz adjustable oscillator frequency, and 1 A totem-pole gate drivers for both sections-enabling >94% system efficiency in industrial SMPS designs.

For engineers reviewing the TDA16888G datasheet, TDA16888G pinout, TDA16888G application, or TDA16888G equivalent, key selection criteria include internal PFC-PWM synchronization, dual overvoltage/undervoltage protection at PFC VS (pin 19), auxiliary supply sensing (AUX VS, pin 20), soft-start management (PWM SS, pin 13), and compliance with IEC 1000-3 harmonic standards.

Technical Context

The TDA16888G implements a fixed-frequency, internally synchronized architecture where the PWM section operates at the same frequency as the PFC section (f_PWM = f_PFC), set via ROSC (pin 16) and externally adjustable from 15 kHz to 200 kHz. Its PFC stage uses average current mode control with leading-edge PWM and dual-loop feedback (voltage loop via PFC FB/pin 17 and current loop via PFC CS/pin 4), while the PWM stage employs trailing-edge current-mode control with ramp compensation (PWM RMP/pin 15) and transformer saturation prevention via strict 50% duty-cycle limit.

Protection is implemented at multiple levels: undervoltage lockout (11 V turn-off / 14 V turn-on at VCC/pin 9), fast overvoltage shutdown triggered at PFC VS (pin 19), auxiliary undervoltage-induced PWM disable, broken-wire detection on PFC VS and other critical pins, and external shutdown via VREF (pin 2) shorting-all coordinated through integrated power management and bias control logic.

Key Specifications

Parameter	Value and Actual Design Meaning
PFC Topology	Boost or flyback; supports continuous/discontinuous conduction mode
PWM Topology	Forward or flyback; 50% max duty cycle prevents transformer saturation
Oscillator Range	15–200 kHz; set by external resistor on ROSC (pin 16)
Gate Drive Current	1 A sink/source per output (PFC OUT pin 8, PWM OUT pin 10)
Start-up Supply Current	Typ. 50 µA; enables low-loss start-up from auxiliary winding
Quiescent Current	15 mA in operation; optimized for standby efficiency
Reference Voltage	7.5 V at VREF (pin 2); foldback-protected for external short-circuit safety

Pinout & Package

Package: P-DSO-20-1 (20-pin plastic dual small-outline, 300 mil body width, gull-wing leads).

Pin/Terminal	Circuit Role	Design Meaning
1 PFC IAC	AC line voltage sensing input	Feeds rectified line voltage into multiplier for sinusoidal current shaping
2 VREF	7.5 V reference output	Foldback-protected reference for external circuitry; shorting disables both outputs
3 PFC CC	PFC current loop compensation	Connects compensation network for average-current-mode stability
4 PFC CS	PFC current sense input	Inputs shunt-sensed PFC inductor current for peak limiting and loop control
5 GND S	Sensing ground reference	Separate analog ground for precision feedback paths; isolated from power ground
6 PFC CL	PFC current limit threshold	Sets peak current limit level for PFC switch via external resistor divider
7 GND	Power ground	Main return path for gate drivers and internal power circuits
8 PFC OUT	PFC gate driver output	1 A totem-pole output driving external PFC MOSFET gate
9 VCC	Supply voltage input	11–17.5 V operating range; internal Zener clamping at 17.5 V
10 PWM OUT	PWM gate driver output	1 A totem-pole output driving external PWM switch (e.g., forward MOSFET)
11 PWM CS	PWM current sense input	Inputs primary-side current for PWM current-mode control and slope compensation
12 SYNC	Oscillator synchronization input	Accepts external clock signal to override internal oscillator frequency
13 PWM SS	PWM soft-start timing	Capacitor-based soft-start ramp controls PWM enable delay and inrush current
14 PWM IN	PWM output voltage feedback	Inputs optocoupler-derived secondary-side voltage for regulation
15 PWM RMP	PWM ramp compensation	Injects slope compensation to prevent subharmonic oscillation in DCM/CCM
16 ROSC	Oscillator frequency setting	Resistor-to-ground sets internal oscillator frequency (15–200 kHz)
17 PFC FB	PFC output voltage feedback	Inputs PFC bus voltage for outer voltage loop regulation
18 PFC VC	PFC voltage loop compensation	Connects compensation network for PFC voltage loop stability
19 PFC VS	PFC output voltage sense	Primary overvoltage/undervoltage detection point; triggers shutdown if out-of-range
20 AUX VS	Auxiliary supply sense	Monitors auxiliary winding voltage to enable/disable auxiliary power mode

Key Features

Feature	Design Value
Internal PFC–PWM synchronization	Eliminates inter-stage jitter and simplifies EMI filter design by locking both sections to identical switching frequency
Dual overvoltage protection	Fast shutdown (C6) + soft throttling (OTA2) at PFC VS (pin 19) prevent bus overvoltage without abrupt transients
Auxiliary supply operation mode	Enables self-powered startup and light-load operation using auxiliary winding, reducing no-load consumption
Broken-wire fault detection	Automatic shutdown on open-circuit at PFC VS (pin 19), PFC IAC (pin 1), or other critical pins ensures safe failure mode
Undervoltage-initiated PWM disable	When PFC bus drops below threshold (via C4), PWM is disabled to reduce load and restore PFC output voltage

Applications

Industrial SMPS

Server Power Supplies

Use Scenario: 500–1500 W off-line power supply for programmable logic controllers with universal AC input (90–270 V AC).

IC Role / Device Role / Timing Role: Dual-controller managing boost PFC preconverter and forward PWM stage with synchronized 65 kHz switching.

Use Value: Achieves >0.99 power factor and <5% THD per IEC 61000-3-2 Class D, eliminating need for external harmonic filters.

Use Scenario: Redundant 80 PLUS Titanium-certified ATX power supply with active PFC and synchronous rectification.

IC Role / Device Role / Timing Role: Primary-side controller coordinating PFC bus regulation and multi-rail PWM outputs (12 V, 5 V, 3.3 V) under dynamic load steps.

Use Value: Internal soft-start (PWM SS, pin 13) and ramp compensation (PWM RMP, pin 15) ensure stable cross-regulation during 50–100% load transients.

Medical Equipment PSUs

LED Driver Power Stages

Use Scenario: Isolated, low-noise 250 W power supply for diagnostic imaging subsystems requiring tight ripple (<20 mVpp) and high reliability.

IC Role / Device Role / Timing Role: Controls discontinuous-mode flyback PFC + forward PWM with separate sensing grounds (GND S/pin 5, GND/pin 7) minimizing noise coupling.

Use Value: Separate sensing ground (GND S) and foldback-protected VREF (pin 2) support safe, low-noise operation in sensitive analog signal chains.

Use Scenario: High-efficiency 300 W constant-current LED driver for street lighting with surge immunity and thermal derating.

IC Role / Device Role / Timing Role: Manages boost PFC and flyback PWM stages with overvoltage protection triggered at PFC VS (pin 19) during lightning-induced surges.

Use Value: Fast OVP shutdown (<100 ns) protects downstream LED strings and electrolytic bulk capacitors from overvoltage stress.

Equivalent & Alternatives

The following parts are listed as comparable options for similar PFC+PWM combi controller applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
ICE2PCS01	Single-chip digital PFC+PWM with integrated 650 V CoolMOS; no external gate driver needed	Targets higher integration density and lower BOM count; lacks AUX VS pin and auxiliary supply mode	Preferred when board space is constrained and discrete MOSFET drivers are undesirable
UCC28070	Analog interleaved PFC + standalone PWM controller; requires external sync circuitry for PFC–PWM coordination	Supports two-phase PFC for >1 kW systems; no internal PFC–PWM sync or integrated soft-start ramp	Chosen when interleaving is required for reduced input ripple and thermal spreading

Compared with ICE2PCS01 and UCC28070, the TDA16888G provides verified internal synchronization, auxiliary supply operation mode, and dedicated broken-wire protection-making it optimal for cost-sensitive, single-phase 300–1000 W industrial SMPS where reliability under partial-fault conditions is critical.

Availability

TDA16888G is available at Aetrix Electronics and suitable for industrial SMPS, server power supplies, medical equipment PSUs, and LED driver power stages requiring stable component supply, long-term lifecycle support, and consistent parametric performance across production batches.

Supply support for TDA16888G 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

Infineon Technologies AG is a German semiconductor manufacturer specializing in power management, automotive, and industrial control ICs, with global R&D and manufacturing infrastructure.

The TDA16888G belongs to Infineon's legacy CoolSET™ family of integrated power controllers, designed specifically for high-efficiency, low-EMI AC/DC conversion in industrial and computing power supplies.

FAQ

What is the minimum recommended value for the ROSC resistor to achieve 200 kHz operation?

The ROSC pin (pin 16) sets oscillator frequency via an external resistor to ground. Per the datasheet, a 15 kΩ resistor yields ~200 kHz. Values below 12 kΩ risk instability due to internal timing margin limits; 15 kΩ is the validated minimum for full-spec operation across temperature and voltage ranges.

Can the TDA16888G operate without an auxiliary winding?

Yes-the IC can be powered directly from the PFC bus via VCC (pin 9), but auxiliary winding operation (enabled via AUX VS/pin 20) reduces no-load consumption to <15 mA and supports reliable start-up under low-line conditions. Without auxiliary supply, start-up relies on bleeder-based VCC charging, increasing no-load loss.

How does the broken-wire detection on PFC VS (pin 19) function?

Pin 19 connects to the PFC output bus via a resistive divider. If the connection opens, comparator C2 detects near-zero voltage and immediately disables PFC OUT (pin 8). This prevents uncontrolled PFC switch turn-on and potential MOSFET destruction due to floating gate drive-verified in application note AN2001-08.

Is external synchronization mandatory for stable dual-loop operation?

No-internal synchronization is default and sufficient for most designs. External SYNC (pin 12) is optional and used only when aligning multiple TDA16888G units or injecting external clock signals for EMI spread-spectrum control; improper SYNC termination may cause jitter or lock failure.

TDA16888G Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Series:: -

Package/Case:: 20-SOIC (0.295", 7.50mm Width)

Packaging:: Tube

Product Status:: Obsolete

Mode:: Average Current

Frequency - Switching:: 200kHz

Current - Startup:: 50 µA

Voltage - Supply:: 0V ~ 17.5V

Operating Temperature:: -25°C ~ 85°C

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: PG-DSO-20-1

TDA16888G FAQ

1.How can I place an order for TDA16888G through Aetrix?

Please submit a Request for Quotation (RFQ) for TDA16888G 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 TDA16888G reliable?

The price and inventory of TDA16888G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TDA16888G is usually 5 days.

3.What payment methods are accepted for TDA16888G?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TDA16888G transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for TDA16888G?

TDA16888G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your TDA16888G 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 TDA16888G?

For technical support, including TDA16888G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TDA16888G requirements.

6.How does Aetrix verify that TDA16888G is sourced from the original manufacturer or authorized distributors?

All TDA16888G 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 TDA16888G meets industry standards.

7.What is the process for return or replacement of TDA16888G?

All TDA16888G units undergo pre-shipment inspection (PSI). If there is an issue with TDA16888G, 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 TDA16888G part is unused and in its original packaging.

Return procedure for TDA16888G:

1.Submit a request within 90 days.

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

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