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Home > Products > Integrated Circuits (ICs) > Power Management (PMIC) - Gate Drivers > TC4468EJD
Microchip Technology
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TC4468EJD

Manufacturer Part Number:
TC4468EJD
Manufacturer / Brand
Microchip Technology
Part of Description:
IC GATE DRVR LOW-SIDE 14CERDIP
Datasheets:
TC4468EJD(1).pdfTC4468EJD(2).pdf
Lead Free Status / RoHS Status:
ROHS3 Compliant
Stock Condition:
New original, 4654 pcs Stock Available.
ECAD Model:
Ship From:
Hong Kong
Shipment Way:
DHL/Fedex/TNT/UPS

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Part Number TC4468EJD
Manufacturer / Brand Microchip Technology
Stock Quantity 4654 pcs Stock
Category Integrated Circuits (ICs) > Power Management (PMIC) - Gate Drivers
Description IC GATE DRVR LOW-SIDE 14CERDIP
Lead Free Status / RoHS Status: ROHS3 Compliant
Voltage - Supply 4.5V ~ 18V
Supplier Device Package 14-CERDIP
Series -
Rise / Fall Time (Typ) 15ns, 15ns
Package / Case 14-CDIP (0.300", 7.62mm)
Package Tube
Operating Temperature -40°C ~ 150°C (TJ)
Number of Drivers 4
Mounting Type Through Hole
Logic Voltage - VIL, VIH 0.8V, 2.4V
Input Type Non-Inverting
Gate Type N-Channel, P-Channel MOSFET
Driven Configuration Low-Side
Current - Peak Output (Source, Sink) 1.2A, 1.2A
Channel Type Independent
Base Product Number TC4468

Packaging & ESD

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TC4468EJD Product Details:

The Microchip Technology TC4468EJD is a quad low-side gate driver delivering 1.2A peak source and sink current across a 4.5V to 18V supply range, packaged in a hermetically sealed 14-CERDIP configuration. This non-inverting driver integrates four independent channels capable of driving both N-channel and P-channel MOSFETs, offering balanced switching performance with 15ns rise and fall times that support efficient power conversion and motor control topologies.

Operating across a junction temperature range of -40°C to 150°C, the TC4468EJD maintains stable gate drive characteristics in industrial and automotive environments where thermal cycling and extended temperature exposure are common. The logic interface accepts standard TTL and CMOS thresholds with VIL at 0.8V and VIH at 2.4V, enabling direct interfacing with microcontrollers, PWM controllers, and discrete logic without level translation circuitry. The 1.2A peak current capability allows rapid charging and discharging of gate capacitances in medium-power switches, reducing transition losses and minimizing electromagnetic interference during hard-switching events.

The low-side driver configuration positions all four output stages referenced to ground, simplifying gate drive design in buck converters, half-bridge drivers with discrete high-side circuits, and synchronous rectifier stages. Independent channel operation permits flexible PWM phasing and allows each driver to operate at different switching frequencies within the same package, which is useful in multi-phase DC-DC converters and interleaved power supplies. The non-inverting architecture preserves input signal polarity, streamlining control logic and reducing propagation delay concerns in timing-sensitive applications such as resonant converters and high-frequency switching regulators.

Packaged in a 14-pin ceramic dual in-line format with through-hole mounting, the TC4468EJD provides mechanical robustness and thermal stability suited to legacy industrial control boards, aerospace power modules, and retrofit designs where surface-mount transitions are constrained by existing layouts. The CERDIP package offers hermetic sealing that protects against moisture ingress and contaminants in harsh operating conditions, though this product has reached obsolete status and inventory availability should be confirmed for new designs. Substitutes including the TC4468EPD TC4468EPD TC4468EPD Microchip Technology IC GATE DRVR LOW-SIDE 14DIP 8604 in plastic DIP share the same electrical characteristics and pinout, facilitating component cross-referencing during sourcing or redesign phases.

The device operates within ROHS3 and REACH compliance frameworks and carries an MSL 1 rating, allowing unlimited floor life exposure prior to soldering. Gate driver applications in switched-mode power supplies, solenoid and relay drivers, and motor control interfaces benefit from the TC4468EJD's combination of current drive strength, wide supply voltage tolerance, and multi-channel integration in a single package.

TC4468EJD Image
TC4468EJD (1)

Replacing the Obsolete Microchip Technology TC4468EJD Low-Side Gate Driver Without Creating Design Risk

The Microchip Technology TC4468EJD is an obsolete quad low-side MOSFET gate driver supplied in a 14-CERDIP through-hole package. Replacement searches usually begin when existing inventory becomes limited, ceramic DIP pricing increases, or a legacy power-control board must remain in production without redesigning the gate-drive stage.

Suitable TC4468EJD replacement parts should be evaluated by more than part-number similarity. The main checks include output drive current, supply-voltage range, input logic thresholds, non-inverting channel behavior, pin compatibility, package fit, thermal margin, and qualification requirements for the end equipment.

Common equivalent or alternative part numbers to evaluate include:

These options are closest where the circuit requires a quad independent non-inverting low-side MOSFET driver with approximately 1.2A peak source and sink capability. The best replacement depends on whether the design can accept a plastic DIP, surface-mount package, or a related Microchip/Micrel driver family device.

What the Microchip Technology TC4468EJD Provides in the Original Gate-Drive Circuit

The Microchip Technology TC4468EJD is a low-side gate driver IC designed to drive N-channel or P-channel MOSFET gates from logic-level control signals. It integrates four independent non-inverting drivers, allowing one IC to control multiple discrete MOSFETs in relay drivers, motor control interfaces, power switching stages, pulse drivers, and industrial control outputs.

Key characteristics influencing replacement selection include:

ParameterTC4468EJD SpecificationReplacement Impact
ManufacturerMicrochip TechnologySame-manufacturer replacements reduce documentation and approval effort
Driver configurationLow-side, independent channelsAlternatives must match the low-side topology unless the circuit is redesigned
Number of drivers4A dual driver or single driver is not a drop-in replacement
Input typeNon-invertingInverting versions such as TC4467-family logic cannot replace it without firmware or schematic changes
MOSFET compatibilityN-channel and P-channel MOSFET gatesReplacement must support capacitive gate-drive loads, not only logic buffering
Supply voltage4.5V to 18VMust cover the existing VDD rail, including transients and tolerance
Peak output current1.2A source, 1.2A sinkLower-current drivers may increase switching loss and MOSFET heating
Logic thresholdsVIL 0.8V, VIH 2.4VTTL/CMOS compatibility must be checked against the controller output voltage
Rise/fall timeTypically 15nsSlower alternatives may affect switching loss, EMI, and timing
Package14-CDIP / 14-CERDIP, 0.300 inchMechanical replacement depends on board footprint and height clearance
Mounting typeThrough-holeSurface-mount alternatives require PCB changes or adapters
Temperature rating-40°C to 150°C TJ listedThermal and environmental margins must be rechecked for plastic-package options
StatusObsoleteAvailability and lifecycle status may drive the replacement decision

The most restrictive feature is often the package. Electrically, several TC4468-family or MIC4468-family parts can perform the same non-inverting quad gate-drive function. Mechanically, the original 14-CERDIP package may have been selected for ruggedness, temperature behavior, hermetic construction, or legacy socket compatibility. A replacement such as TC4468EPD TC4468EPD TC4468EPD Microchip Technology IC GATE DRVR LOW-SIDE 14DIP 8604 may be electrically close but differs in package material.

Candidate Replacement Parts for Microchip Technology TC4468EJD Equivalent Evaluation

The following table compares practical TC4468EJD alternative part numbers from an engineering replacement perspective. Final approval should be based on the latest manufacturer datasheet, board footprint, environmental requirements, and component availability.

ManufacturerPart NumberKey SpecificationsProduct FeaturesTypical ApplicationsWhy It Can Replace the Original PartMain Differences or LimitationsRecommended Usage
Microchip Technology TC4468EPD TC4468EPD TC4468EPD Microchip Technology IC GATE DRVR LOW-SIDE 14DIP 8604 Quad low-side MOSFET driver; non-inverting; 4.5V to 18V supply; approximately 1.2A peak source/sink; through-hole PDIP packageSame TC4468 base function; four independent channels; TTL/CMOS-compatible input behaviorLegacy through-hole power switching boards, relay drivers, solenoid drivers, MOSFET gate-drive circuitsClosest functional replacement for TC4468EJD when ceramic package is not requiredPlastic DIP instead of 14-CERDIP; environmental and mechanical robustness may differBest first-choice replacement where the PCB uses a DIP footprint and the application accepts a plastic package
Microchip Technology TC4468EOE TC4468EOE TC4468EOE Microchip Technology IC GATE DRVR LOW-SIDE 16SOIC 6888 Quad non-inverting low-side MOSFET driver; same TC4468 functional family; surface-mount package optionSame driver logic behavior with SMT assembly compatibilityUpdated PCB revisions, compact control boards, automated assembly designsProvides the same TC4468 driver architecture for designs moving away from through-hole assemblyNot mechanically drop-in for 14-CERDIP; PCB layout or adapter requiredSuitable for board redesigns or cost/assembly optimization where SMT is preferred
Microchip Technology / Micrel MIC4468YN MIC4468YN MIC4468YN Microchip Technology IC GATE DRVR LOW-SIDE 14DIP 3436 Quad CMOS MOSFET driver; non-inverting; typically similar 4.5V to 18V class supply and 1.2A peak drive class; PDIP packageMIC4468-family equivalent function; independent outputs; high-speed capacitive-load driveIndustrial control outputs, motor-drive interfaces, pulse transformer drivers, MOSFET switching stagesFunctionally aligned with TC4468EJD as a quad non-inverting low-side gate driverPinout, timing, input thresholds, and output characteristics must be verified against the exact datasheet revisionUseful when TC4468-family inventory is constrained and a through-hole functional alternative is acceptable
Microchip Technology / MicrelMIC4468YMQuad CMOS MOSFET driver; non-inverting; surface-mount package version of MIC4468 familySMT package; similar quad gate-driver role; high-speed MOSFET gate driveNew PCB layouts, compact power-control modules, replacement redesignsCan replace the TC4468EJD function when the design can move to MIC4468-family SMT implementationNot a mechanical drop-in; qualification required for layout, thermal behavior, and timingBest for redesigned assemblies where long-term SMT sourcing is preferred over legacy ceramic DIP sourcing

TC4468EPD TC4468EPD TC4468EPD Microchip Technology IC GATE DRVR LOW-SIDE 14DIP 8604 is generally the most direct TC4468EJD replacement when the main goal is to keep the same through-hole layout. TC4468EOE TC4468EOE TC4468EOE Microchip Technology IC GATE DRVR LOW-SIDE 16SOIC 6888 becomes attractive when a PCB update is already planned and surface-mount assembly is acceptable. MIC4468YN MIC4468YN MIC4468YN Microchip Technology IC GATE DRVR LOW-SIDE 14DIP 3436 and MIC4468YM are useful functional alternatives, but they should be treated as second-source style candidates requiring pinout and timing confirmation before release.

Engineering Trade-Offs When Comparing Microchip Technology TC4468EJD Replacement Options

Selecting a TC4468EJD equivalent part is a trade-off between electrical similarity, mechanical fit, supply continuity, and qualification effort. The table below focuses on how each candidate affects real circuit behavior and implementation effort.

Decision FactorTC4468EPDTC4468EOEMIC4468YNMIC4468YM
Electrical compatibilityClosest match because it remains in the TC4468 family with the same non-inverting quad-driver functionElectrically close within the TC4468 familyFunctionally similar, but datasheet-level comparison is neededFunctionally similar, with the same need for datasheet verification
Mechanical compatibilityStrong option for DIP-based boards, though plastic package differs from ceramicRequires SMT footprint or adapterThrough-hole option, but footprint and pinout must be checkedRequires SMT footprint or redesign
Output-drive behaviorExpected to preserve the 1.2A-class gate-drive behaviorExpected to preserve TC4468-family switching behaviorSimilar gate-drive class, but rise/fall timing and propagation delay should be comparedSimilar functional class, with SMT layout influencing switching performance
Logic-interface riskLow if controller logic levels already meet TC4468EJD thresholdsLow for TC4468-family migrationModerate; confirm VIL/VIH margins with the controllerModerate; confirm logic thresholds and noise margin
Thermal and environmental fitPlastic package may be less suitable where ceramic package ruggedness was part of the original design intentSMT thermal behavior depends on PCB copper and airflowPlastic DIP behavior should be reviewed for ambient and power dissipationSMT thermal performance depends strongly on layout
Qualification effortLowest among listed alternatives when ceramic packaging is not mandatoryModerate due to mechanical redesignModerate due to family change and verification requirementsHigher if both family and package change
Package availabilityPractical for legacy through-hole builds if availableBetter suited to modern assembly flowsUseful if TC4468EPD TC4468EPD TC4468EPD Microchip Technology IC GATE DRVR LOW-SIDE 14DIP 8604 supply is limitedUseful for redesigns with SMT sourcing flexibility
Cost considerationsOften lower than obsolete ceramic DIP, depending on market supplyMay reduce assembly cost in SMT productionMay be cost-effective as a functional substituteMay support lower automated assembly cost in new layouts
AdvantagesSame base TC4468 behavior; easiest electrical migrationKeeps TC4468 function while enabling SMT layoutThrough-hole functional alternative outside the TC4468 part numberSMT alternative for redesigned boards using MIC4468-family devices
LimitationsNot ceramic; not ideal where hermetic package characteristics are requiredNot drop-in for existing 14-CERDIP PCBRequires closer pinout, timing, and qualification reviewRequires PCB change and family-level validation
Best application fitLegacy production boards needing a practical TC4468EJD replacementUpdated TC4468-based PCB designsThrough-hole systems needing a functional quad non-inverting driver alternativeNew or revised SMT power-control boards

For the lowest redesign effort, TC4468EPD TC4468EPD TC4468EPD Microchip Technology IC GATE DRVR LOW-SIDE 14DIP 8604 is typically the first replacement to evaluate for the Microchip Technology TC4468EJD. If the assembly is being redesigned, TC4468EOE TC4468EOE TC4468EOE Microchip Technology IC GATE DRVR LOW-SIDE 16SOIC 6888 may preserve the TC4468 electrical function while moving to surface-mount production. MIC4468YN MIC4468YN MIC4468YN Microchip Technology IC GATE DRVR LOW-SIDE 14DIP 3436 and MIC4468YM can be considered when sourcing flexibility is needed, but they should go through schematic, layout, and switching-performance review before approval.

For current availability, pricing, and quotations for TC4468EJD replacement parts such as TC4468EPD TC4468EPD TC4468EPD Microchip Technology IC GATE DRVR LOW-SIDE 14DIP 8604 , TC4468EOE TC4468EOE TC4468EOE Microchip Technology IC GATE DRVR LOW-SIDE 16SOIC 6888 , MIC4468YN MIC4468YN MIC4468YN Microchip Technology IC GATE DRVR LOW-SIDE 14DIP 3436 , or MIC4468YM, obtain quotes through IC-Components.com or email Info@IC-Components.com.

Frequently Asked Questions

What are the key design constraints when integrating the TC4468EJD low-side gate driver into a high-frequency switching power supply to avoid shoot-through or timing mismatches?
The TC4468EJD features independent 4-channel outputs with a typical rise and fall time of 15ns each, which enables fast MOSFET switching but demands careful layout and synchronization. To prevent shoot-through in half-bridge configurations, ensure dead-time control via external logic or use only one channel at a time when driving complementary devices. Additionally, maintain strict trace symmetry and minimize parasitic inductance on output paths to preserve signal integrity across all four channels.
Can the TC4468EJD be used to drive P-Channel MOSFETs effectively, and what modifications are required compared to N-Channel configurations?
Yes, the TC4468EJD can drive P-Channel MOSFETs in low-side applications, but this requires a negative gate-source voltage relative to the source terminal. Since the driver outputs swing between ground and VCC, connecting the P-Channel source to VCC allows the gate to go to ground, turning it off. However, ensure the P-Channel device has sufficient threshold voltage margin and that the supply rail remains stable during switching transitions to avoid unintended conduction.
How does thermal performance of the TC4468EJD impact long-term reliability in industrial motor control systems operating at elevated ambient temperatures?
The TC4468EJD operates from -40°C to 150°C junction temperature, making it suitable for harsh environments, but continuous high-load operation can degrade reliability if heatsinking is inadequate. With peak sink/source current of 1.2A per channel, power dissipation increases significantly with duty cycle and frequency. Engineers must calculate total power loss considering both conduction and switching losses and verify that the PCB copper area and airflow support thermal requirements under worst-case conditions.
When replacing the TC4468EJD with an alternative such as the TC4468EPD, what design differences should be considered beyond basic electrical compatibility?
While the TC4468EPD shares the same pinout and functional characteristics as the TC4468EJD, it is packaged in a plastic DIP instead of ceramic CERDIP. This affects thermal resistance and mechanical stability—especially in vibration-prone environments—and may require redesigning the mechanical interface or adding additional mounting support. Also confirm that the replacement part maintains identical propagation delay and output impedance to preserve timing accuracy in synchronous buck converters.
Is it feasible to parallel multiple outputs of the TC4468EJD to increase current delivery for a single high-current MOSFET, and what risks does this introduce?
Parallel use of TC4468EJD outputs to drive a single MOSFET is not recommended due to slight variations in turn-on/turn-off delays between channels. Mismatched thresholds can cause uneven current sharing, leading to localized overheating and potential device failure. Instead, select a higher-current gate driver IC or add series resistors to balance transient currents, though this increases RDS(on) and reduces efficiency.
What precautions are necessary when using the TC4468EJD in battery-powered systems where supply voltage drifts over time?
The TC4468EJD supports a wide supply range of 4.5V to 18V, which accommodates battery discharge curves, but input logic thresholds (VIH = 2.4V, VIL = 0.8V) must remain valid throughout the operating voltage window. In low-voltage scenarios near 4.5V, ensure upstream logic levels exceed 2.4V to guarantee proper recognition of HIGH inputs. Decoupling capacitors close to the VCC pin are essential to suppress noise-induced false triggering during rapid load changes.
Can the TC4468EJD directly interface with 3.3V microcontroller PWM signals without level shifting, and under what conditions?
Yes, the TC4468EJD accepts logic inputs compatible with 3.3V systems since its VIH minimum is 2.4V, which is typically satisfied by standard 3.3V TTL or CMOS outputs. However, verify that the MCU’s output high voltage exceeds 2.4V at the maximum operating temperature and full supply range. Avoid long input traces without series termination to prevent ringing that could violate setup and hold times.
What layout guidelines are critical when routing the outputs of the TC4468EJD near high-current power stages to minimize EMI and crosstalk?
Keep gate drive traces as short and direct as possible, routed away from sensitive analog signals. Use controlled impedance paths and minimize loop area to reduce radiated emissions. Place decoupling capacitors within 5mm of the VCC and GND pins. Ground planes should be unbroken beneath the package to enhance heat dissipation and provide a low-impedance return path, reducing susceptibility to electromagnetic interference in industrial automation equipment.
How does the TC4468EJD handle simultaneous switching of multiple MOSFETs in a multi-phase DC-DC converter, and what timing considerations apply?
As the TC4468EJD provides four independent drivers with matched propagation delays, it supports precise interleaving in multi-phase designs. Ensure that each phase uses a dedicated channel with symmetric routing to maintain consistent phase alignment. Account for cumulative propagation skew across phases and validate stability margins under dynamic load steps using simulation tools before final hardware implementation.
Are there any limitations when using the TC4468EJD in isolated gate drive topologies requiring optocouplers or transformers for galvanic separation?
The TC4468EJD itself is not inherently isolated, so it cannot directly drive gates across an isolation barrier. For such applications, pair it with an isolated driver stage using components like Silicon Labs Si823x or Analog Devices ADuM4120. The non-inverting input type allows straightforward interfacing, but ensure signal integrity across the isolation boundary by minimizing common-mode transients and maintaining tight coupling on secondary-side filtering networks.

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