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Toshiba Semiconductor TLP352F(D4-TP4,F) — Power Management (PMIC / Gate Driver)
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RoHS Compliant · Lead-Free EIA-481 Standard
Toshiba Semiconductor / Power Management (PMIC / Gate Driver)

Toshiba TLP352F(D4-TP4,F) Optocoupler Gate Driver

MPN TLP352F(D4-TP4,F)
End of Life Spot Stock · 24-48h Dispatch 100% Original Sealed

Toshiba TLP352F(D4-TP4,F) optocoupler gate driver, 1-channel, 3750 Vrms isolation, 2.5 A peak output, 15/8 ns rise/fall, 20 kV/µs CMTI, 8-SMD gull wing, -40°C to 125°C.

In Stock: 12 pcs
MOQ: 1 pcs
Logistics: DHL / FedEx DAP (Global Express · 3-7d) Russia & CIS DDP (Door-to-Door Cleared)
Dispatch: Shenzhen / HK
Unit Price (USD)
$3.15 / pc
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Volume Pricing Breaks Confirmed upon quotation
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$3.15
10+ pcs
$3.08
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100% Original Sealed 45x Microscope QC 30-Day Warranty · COC USD T/T & PI · DAP/DDP
[SPEC] Essential Parameters Snapshot Full Specifications (17)
Package / Case 8-SMD, Gull Wing
Output / Current 2A, 2A
ALT
Facing long factory lead times or allocation on TLP352F(D4-TP4,F)? Verified pin-compatible alternatives available with active Shenzhen stock and 100% solder-ready footprint match.
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Full Technical Specifications

17 Parameters
TLP352F(D4-TP4,F) specifications
Parameter / AttributeSpecification / Value
MountingSurface Mount
Voltage - isolation3750Vrms
Voltage - output supply15V ~ 30V
Voltage - forward (Vf)1.55V
Current - peak output2.5A
Current - output high, low2A, 2A
Current - DC forward (If)20 mA
Operating temperature-40°C ~ 125°C
Pulse width distortion50ns
Approval agencyCSA, cUL, UL, VDE
PackageTape & Reel (TR); Cut Tape (CT)
TechnologyOptical Coupling
Case8-SMD, Gull Wing
Channels1
Rise (Fall time)15ns, 8ns
Propagation delay tpLH (tpHL)200ns, 200ns
Common mode transient immunity20kV/µs
100% Footprint Match · Solder-Ready (No PCB Redesign Needed)

Need Stock or a Drop-in Second-Source for TLP352F(D4-TP4,F)?

Package: DIP-8 (gate-drive optocoupler) · Pin-compatible replacements with immediate Shenzhen spot stock

Footprint Match 97%
Supply Chain & Allocation Reality:

This eight-pin row is how inverter, servo and welder drive boards cross the isolation barrier to fire their IGBTs: TLP250 from Toshiba, HCPL-3120/A3120 from the Avago lineage, FOD3120 from the Fairchild line - four houses, one socket, and a repair literature that swaps them by name. The selection axis is output current (TLP250 at a 1.5A peak against the 2.5A class of its successors) and input threshold (the 3120 triggers from a lower LED current), and the design axis is the negative gate rail that keeps Miller capacitance from re-triggering the IGBT. In repair, the row behaves; what re-fails is the rail and the bypass capacitor the procedure keeps forgetting.

Verified Pin-Compatible Replacements (3 verified alternatives)

TLP350 Toshiba DIP-8
100% Drop-in (Zero Code Change)
Availability & Target Pricing:

The Documented Upgrade in the Same Socket

Shenzhen Spot Stock (24-48h Dispatch)

Electrical & Core Specs:

The higher-output member: about +/-2.5A peak against the TLP250s +/-1.5A, aimed at 1200V IGBTs in the 20-100A class, with lower supply current - the direct upgrade path of the row.

Gate-side supply in the 10-35V class; isolation 2500V class.

Compatibility & Drop-In Notes: The substitution rule reported from inverter repair: in low-power drives the smaller part can stand in for the bigger; in mid and high-power drives the output current difference matters, although many designs carry a post-amplifier stage that softens it.
Package & Solder Footprint: Standard 8-pin gate-drive optocoupler pinout across the row.
Shenzhen Warehouse Stock & MOQ: Active Toshiba line; the forward part of the socket.
Request Volume Quote for TLP350 Compare TLP352F(D4-TP4,F) vs TLP350 Spec Matrix
HCPL-3120 Broadcom (Avago) DIP-8
Functional Equivalent
Availability & Target Pricing:

The Other House of the Same Socket

Shenzhen Spot Stock (24-48h Dispatch)

Electrical & Core Specs:

The Avago-line drive optocoupler: about +/-2A output, direct drive of 150A/1200V IGBT modules, and a lower LED threshold (about 2.5mA) that changes the input-side resistor arithmetic.

15V to 30V gate-side supply; isolation 1414V class (the HCNW variant carries the higher figure).

Compatibility & Drop-In Notes: The input-current difference is the practical one when crossing houses: a drive resistor sized for the 250s 5mA can overdrive a 3120s LED budget - and the reverse starves. Recompute the input resistor, then treat the row as interchangeable.
Package & Solder Footprint: Same 8-pin socket; the HCNW3120 is electrically the same part in a wider isolation body.
Shenzhen Warehouse Stock & MOQ: Multi-line stock; the standard alternative of the drive-repair trade.
Request Volume Quote for HCPL-3120 Compare TLP352F(D4-TP4,F) vs HCPL-3120 Spec Matrix
FOD3120 onsemi (Fairchild line) DIP-8
100% Drop-in (Zero Code Change)
Availability & Target Pricing:

The Fairchild-Line Member

Shenzhen Spot Stock (24-48h Dispatch)

Electrical & Core Specs:

The Fairchild-line drive optocoupler with the 2.5A-class output: functionally the TLP350 of the row in the onsemi lineage.

Same gate-side envelope as the row.

Compatibility & Drop-In Notes: The row rule applies: verify the input threshold figure of the exact member, recompute the LED resistor if crossing houses, and treat output current as the power-class decision.
Package & Solder Footprint: Standard 8-pin pinout.
Shenzhen Warehouse Stock & MOQ: Stocked with the row; the documented second source for A3120 designs.
Request Volume Quote for FOD3120 Compare TLP352F(D4-TP4,F) vs FOD3120 Spec Matrix
Buyer & Quality Checklist for Sourcing Alternatives
  • The negative gate rail is the design, not the luxury: a VEE below emitter (the +15/-15V or +15/-8V schemes) prevents Miller-capacitance false turn-on in bridge drives. Repairs that skip the negative rail reintroduce the shoot-through the original design existed to avoid.
  • The bypass capacitor lives between pins 8 and 5 (0.1uF class) - it is in every application note and on no repair checklist; missing it turns switching transients into mysterious drive glitches.
  • Crossing houses recomputes the input resistor: Toshiba members trigger around 5mA, the 3120 family around 2.5mA - the difference is the LED and eventually the driver behind it.
  • Output current is the power-class axis: 1.5A against 2.5A peaks decides whether the part drives the IGBT gate directly or leans on a post-amplifier stage - read the schematic, not the name.
  • When a drive optocoupler fails, the IGBT usually failed first (or together): meter the gate-emitter junction and the collector path before fitting the third driver into the same board.
  • In repair inventory, the row is one drawer with one trap: isolation grade differences (HCNW and wide-body variants) mean the subs that exist on paper are not always subs on the board.
Frequently Asked Technical Questions

Q: Can TLP250 and HCPL-3120 replace each other?

A: In low-power drives yes - the reported practice is direct interchange in the 8-pin socket - with the input-resistor recomputation for the different LED thresholds (about 5mA against 2.5mA). In mid and high-power drives compare the output-current class first.

Q: What drives TLP250 output current selection?

A: The IGBT gate charge and the absence of a post-amplifier stage: 1.5A peaks suit the 50A/1200V class the TLP250 was specified for, while the 2.5A members (TLP350, FOD3120) cover 20-100A modules without help.

Q: Why do repaired inverter drives fail again at power-up?

A: Commonly the negative gate rail or the missing bypass capacitor: without VEE the Miller capacitance false-triggers the bridge, and without the 0.1uF at pins 8-5 the drive sees every switching transient. Check both before blaming the new optocoupler.

Technical Details & Description

Gate driver optocoupler for IGBT and MOSFET switching

The Toshiba TLP352F(D4-TP4,F) is a single-channel optocoupler gate driver designed to directly drive IGBTs and power MOSFETs in isolated switching applications. It delivers a peak output current of 2.5 A and provides reinforced isolation rated at 3750 Vrms, with approvals from CSA, cUL, UL, and VDE.

The 2.5 A peak output current is enough to charge and discharge typical IGBT gate capacitance in the tens of nanoseconds, which directly determines switching losses and dead-time margins. The 15 ns typical rise and 8 ns fall times keep crossover conduction short in half-bridge topologies. The 20 kV/µs common-mode transient immunity means the output stays clean when the switching node slews at high dV/dt — a common failure point in motor drives where the floating ground jumps several hundred volts in a microsecond. Budget the 1.55 V forward voltage drop and 20 mA maximum LED current when sizing the primary-side drive resistor.

The approvals from CSA, cUL, UL, and VDE cover the safety certifications typically required for mains-isolated gate drive circuits in industrial equipment.

Frequently asked questions

Is TLP352F(D4-TP4,F) suitable for driving IGBTs and MOSFETs?

Yes. The 2.5 A peak output current and 15 ns / 8 ns rise/fall times are well matched to driving the gate capacitance of medium-power IGBTs and MOSFETs in hard-switched inverter and converter stages. The 20 kV/µs common-mode transient immunity ensures reliable operation in noisy environments like motor drives.

Does TLP352F require an external gate resistor?

Yes. An external gate resistor is typically required to control the gate charge current and dampen ringing, just as with any optocoupler gate driver. The 2.5 A peak output capability means the resistor value sets the actual turn-on/turn-off speed — the datasheet application circuit shows the standard approach.

What are the equivalents or cross-reference for TLP352F(D4-TP4,F)?

The closest functional sibling is the TLP352(D4-TP1,F), which shares the same 2.5 A peak output, 3750 Vrms isolation, 20 kV/µs CMTI, and 8-SMD gull wing package. The primary difference is the approval agency set — the TLP352F(D4-TP4,F) adds VDE certification. Both are active and RoHS compliant.

TLP352F(D4-TP4,F)
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