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Home > Products > Integrated Circuits (ICs) > Power Management (PMIC) > Power Supply Controllers, Monitors

Infineon Technologies TDA168462GGEGHUMA1

Name: TDA168462GGEGHUMA1
Brand: Infineon Technologies
SKU: TDA168462GGEGHUMA1
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: TDA168462GGEGHUMA1

Manufacturer:: Infineon Technologies

Category:: Power Supply Controllers, Monitors

Package:: 14-SOIC (0.154", 3.90mm Width)

Datasheet:: TDA168462GGEGHUMA1.pdf

Description:: IC POWER SUPPLY CONTROLLER DSO14

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Product details

Overview

TDA168462GGEGHUMA1 from Infineon Technologies is a bipolar PWM quasi-resonant controller IC for flyback SMPS with integrated PFC support, adjustable standby frequency (e.g., 20 kHz), soft-start, and mains undervoltage protection. It features VCC over/undervoltage lockout (VON = 15.5 V, VOFF = 9.5 V), low start-up current (<100 µA), and output driver optimized for MOSFET gate drive in consumer TV/SAT receiver power supplies.

For engineers reviewing the TDA168462GGEGHUMA1 datasheet, TDA168462GGEGHUMA1 pinout, TDA168462GGEGHUMA1 application, or TDA168462GGEGHUMA1 equivalent, key selection considerations include its quasi-resonant operation mode, primary voltage check (PVC) threshold (1 V), opto-coupler input compatibility, and 14-pin DSO package with exposed thermal pad (P-DSO-14-3).

Technical Context

The TDA168462GGEGHUMA1 implements a variable-frequency quasi-resonant control architecture that reduces switching frequency under light load to minimize standby power-down to an adjustable minimum (e.g., 20 kHz). Its zero-crossing detection at Pin 3 enables valley-switching for reduced EMI and MOSFET stress.

It integrates dual fault comparators (Pin 6: 1.2 V trip; Pin 10: 1 V trip), primary voltage fold-back correction (active in free-running mode), and spike-blanked inputs at Pins 11 (PVC) and 14 (VCC) for robust noise immunity. Startup uses internal diode D1 and R2-based charging of C14-no external startup resistor required.

Key Specifications

Parameter	Value and Actual Design Meaning
VCC ON Threshold	15.5 V - IC enables only above this supply voltage to prevent erratic operation during brownout
VCC OFF Threshold	9.5 V - IC disables below this level to ensure clean shutdown during undervoltage
Start-up Current	<100 µA - Enables direct auxiliary winding startup without external resistor
PVC Trip Voltage	1.0 V - Triggers shutdown if primary bus voltage drops below safe operating level
FC2 Trip Voltage	1.2 V - Fault comparator 2 activation threshold for overcurrent or thermal fault signaling
FC1 Trip Voltage	1.0 V - Fault comparator 1 activation threshold for fast system-level fault response
Standby Frequency	Adjustable down to ~20 kHz - Reduces audible noise and core losses in standby mode

Pinout & Package

Package: P-DSO-14-3 (14-pin plastic dual small outline, exposed thermal pad, RoHS-compliant).

Pin/Terminal	Circuit Role	Design Meaning
1 OTC	Off-Time Control	RC network sets ringing suppression time and standby frequency
2 PCS	Primary Current Simulation	Capacitor + resistor quantifies max. output power; feeds startup charge path
3 RZI	Regulation & Zero-Cross Input	Error amplifier input + zero-cross detection for valley switching
4 SRC	Soft-Start & Regulation Capacitor	Capacitor value determines soft-start duration and regulation loop speed
5 OCI	Opto-Coupler Input	Direct interface for isolated feedback; supports 0–5 V input range
6 FC2	Fault Comparator 2	1.2 V threshold input for secondary-side fault detection
7 SYN	Synchronization Input	Accepts external sync pulses or RC network for fixed-frequency mode
8 N.C.	No Connect	Not bonded; must be left floating (TDA16846-2 variant)
9 REF	Reference Output	5 V reference source; enables FC2 via pull-down resistor
10 FC1	Fault Comparator 1	1.0 V threshold input for fast primary-side fault shutdown
11 PVC	Primary Voltage Check	Monitors rectified mains bus; triggers shutdown below 1 V
12 GND	Ground Reference	Common return for all analog and power circuits
13 OUT	Gate Driver Output	Push-pull output drives MOSFET gate directly; logic-level compatible
14 VCC	Supply Voltage Input	Startup and operating supply; internally regulated; accepts 9.5–17.1 V

Key Features

Feature	Design Value
Quasi-resonant valley switching	Reduces MOSFET turn-on loss and EMI by triggering at drain voltage minima
Adjustable standby frequency	Configurable via Pin 1 RC network to meet <1 W no-load requirements
Integrated startup circuit	Eliminates external high-voltage startup resistor using internal diode and PCS path
Spike-blanked PVC & VCC inputs	Prevents false tripping from transformer ringing or line transients
Dual independent fault comparators	Enables simultaneous monitoring of primary overcurrent and secondary overvoltage

Applications

TV Power Supply

SAT Receiver PSU

Use Scenario: 24/7 standby operation in flat-panel TV with <0.5 W no-load consumption requirement.

IC Role / Device Role / Timing Role: Primary-side PWM controller managing quasi-resonant flyback with adaptive frequency scaling.

Use Value: Achieves EN 50564 compliance via 20 kHz minimum standby frequency and <100 µA startup current.

Use Scenario: Compact, low-cost offline SMPS for satellite set-top box with integrated PFC stage.

IC Role / Device Role / Timing Role: Controller for current-pump PFC + QR flyback combo; regulates both stages via shared error amp.

Use Value: Eliminates separate PFC controller IC, reducing BOM count and PCB area by 30%.

PC Monitor PSU

VCR Standby Power

Use Scenario: Energy-efficient auxiliary power rail in LCD monitor supporting DPMS sleep modes.

IC Role / Device Role / Timing Role: Standby-mode controller with synchronized burst-mode operation and soft-start.

Use Value: Meets ENERGY STAR 8.0 standby power limits (<0.3 W) using continuous frequency reduction.

Use Scenario: Low-noise, low-heat standby supply in legacy VCR with mechanical tape transport.

IC Role / Device Role / Timing Role: Mains-synchronized QR controller with undervoltage lockout for brownout resilience.

Use Value: Prevents motor stall and capacitor degradation during grid sags via 9.5 V VOFF threshold.

Equivalent & Alternatives

The following parts are listed as comparable options for similar PWM quasi-resonant controller applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
ICE2QS03G	Fixed-frequency QR controller; no adjustable standby frequency; higher start-up current (250 µA)	Lacks adaptive frequency scaling; unsuitable for sub-0.5 W standby targets	Select when fixed 65 kHz operation and simpler timing design are prioritized over ultra-low standby
KA5Q1265RTU	Integrated PSR controller with built-in HV starter; no PFC support; single fault comparator	Designed for primary-side regulation only; cannot interface with opto-coupler or external PFC	Choose for cost-sensitive, non-PFC flyback designs where isolation feedback is not required

Compared with ICE2QS03G and KA5Q1265RTU, TDA168462GGEGHUMA1 uniquely combines PFC support, dual fault comparators, and programmable standby frequency-making it the only option among the three qualified for EN 50564-compliant TV/SAT standby supplies requiring <0.3 W no-load power.

Availability

TDA168462GGEGHUMA1 is available at Aetrix Electronics and suitable for TV power supplies, SAT receiver PSUs, PC monitor auxiliary rails, and VCR standby converters requiring stable component supply across long-lifecycle consumer electronics programs.

Supply support for TDA168462GGEGHUMA1 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 manufacturing and quality certification to ISO/TS 16949 and AEC-Q100 standards.

The TDA168xx family was designed specifically for energy-efficient, low-standby-power offline SMPS in consumer electronics-emphasizing quasi-resonant control, PFC integration, and robust fault handling in compact DSO packages.

FAQ

What is the function of Pin 8 on TDA168462GGEGHUMA1?

Pin 8 is Not Connected (N.C.) on TDA168462GGEGHUMA1. This distinguishes it from the TDA16847-2 variant, where Pin 8 serves as the power measurement output (PMO) for the Temporary High Power Circuit. On this part, Pin 8 must remain unconnected and floating-no external components or routing should be applied.

Does TDA168462GGEGHUMA1 support Power Factor Correction?

Yes-it supports current-pump PFC topology via dedicated circuitry including the Primary Current Simulation (PCS) input at Pin 2 and integrated regulation paths. The datasheet confirms compatibility with PFC-enabled flyback converters, and the block diagram shows shared error amplifier usage between PFC and main converter stages.

Can TDA168462GGEGHUMA1 operate in fixed-frequency mode?

Yes-via Pin 7 (SYN): connecting an RC network between Pin 7 and ground configures fixed-frequency operation, while feeding external sync pulses enables synchronized mode. Startup defaults to free-running mode until RZI (Pin 3) exceeds 2.5 V, preventing transformer saturation during initialization.

What is the maximum allowable VCC voltage for reliable operation?

The absolute maximum VCC voltage is 17.1 V, per the updated overvoltage threshold (V14OVmax) specified in Revision 2.0 (2003-07-31). Operation above this level risks permanent damage. Recommended operating range remains 9.5 V to 15.5 V for normal regulation, with transient spikes clamped externally via Zener or TVS.

TDA168462GGEGHUMA1 Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Series:: -

Package/Case:: 14-SOIC (0.154", 3.90mm Width)

Packaging:: Tape & Reel (TR)

Product Status:: Obsolete

Programmable:: Not Verified

Applications:: Power Supply Controller

Voltage - Input:: -

Voltage - Supply:: 8V ~ 16V

Current - Supply:: 5 mA

Operating Temperature:: -25°C ~ 125°C

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: PG-DSO-14-3

TDA168462GGEGHUMA1 FAQ

1.How can I place an order for TDA168462GGEGHUMA1 through Aetrix?

Please submit a Request for Quotation (RFQ) for TDA168462GGEGHUMA1 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 TDA168462GGEGHUMA1 reliable?

The price and inventory of TDA168462GGEGHUMA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TDA168462GGEGHUMA1 is usually 5 days.

3.What payment methods are accepted for TDA168462GGEGHUMA1?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TDA168462GGEGHUMA1 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for TDA168462GGEGHUMA1?

TDA168462GGEGHUMA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your TDA168462GGEGHUMA1 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 TDA168462GGEGHUMA1?

For technical support, including TDA168462GGEGHUMA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TDA168462GGEGHUMA1 requirements.

6.How does Aetrix verify that TDA168462GGEGHUMA1 is sourced from the original manufacturer or authorized distributors?

All TDA168462GGEGHUMA1 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 TDA168462GGEGHUMA1 meets industry standards.

7.What is the process for return or replacement of TDA168462GGEGHUMA1?

All TDA168462GGEGHUMA1 units undergo pre-shipment inspection (PSI). If there is an issue with TDA168462GGEGHUMA1, 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 TDA168462GGEGHUMA1 part is unused and in its original packaging.

Return procedure for TDA168462GGEGHUMA1:

1.Submit a request within 90 days.

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

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