Specifications
| Type | Description |
|---|---|
| Part Number | UCC27531 |
| Manufacturer | Texas Instruments |
| Product Type | LDO Regulator |
| Category | Power Management |
| Component Type | Power_IC |
| Package / Case | SOT-23-6 DBV 2.90 mm x 1.60 mm; SOIC-8 D 4.90 mm x 3.91 mm |
| Driver Function | Single-channel high-speed gate driver for MOSFET and IGBT power switches |
| Peak Source Current | 2.5 A at 18 V VDD; UCC27531 |
| Peak Sink Current | 5 A at 18 V VDD; UCC27531 |
| VDD Operating Range | 10 V to 35 V |
| Maximum VDD | 35 V |
| Typical Propagation Delay | 17 ns |
| Typical Rise Time | 15 ns with 1800 pF load |
| Typical Fall Time | 7 ns with 1800 pF load |
| Input Logic Compatibility | TTL and CMOS compatible; input logic threshold independent of supply voltage |
| Input Configuration | Single non-inverting input |
| Enable Function | Yes/No; UCC27531 variants |
| Output Configuration | Split/Single |
| Inverting Input Support | No |
| Output State With Floating Input | Output held low |
| Output State During UVLO | Output held low |
| Undervoltage Lockout | Integrated UVLO on VDD pin; holds output low until VDD is within operating range |
| Input Negative Voltage Capability | Up to -5 VDC below ground on input and enable pins |
| Absolute Maximum Supply Voltage | -0.3 V to 35 V for VDD over operating free-air temperature range |
| Absolute Maximum Output Voltage Continuous | -0.3 V to VDD + 0.3 V for OUTH, OUTL, OUT continuous |
| Absolute Maximum Output Voltage Pulse | -2 V to VDD + 0.3 V for OUTH, OUTL, OUT; 200 ns pulse |
| Absolute Maximum Input and Enable Voltage Continuous | -5 V to 27 V for IN, EN, IN+, IN-, IN1, IN2 continuous |
| Absolute Maximum Input and Enable Voltage Pulse | -6.5 V to 27 V for IN, EN, IN+, IN-, IN1, IN2; 1.5 us pulse |
| Operating Virtual Junction Temperature | -40°C to 150°C |
| Operating Temperature Range | -40°C to 140°C |
| Storage Temperature | -65°C to 150°C |
| Lead Temperature | 300°C for soldering, 10 seconds |
| Reflow Temperature | 260°C lead temperature, reflow |
| HBM ESD Rating | ±4000 V per ANSI/ESDA/JEDEC JS-001 |
| CDM ESD Rating | ±1000 V per JEDEC JESD22-C101 |
| UCC27531 DBV Pin 1 | EN; enable input; pull to GND to disable output, pull high or leave open to enable output |
| UCC27531 DBV Pin 2 | IN; driver non-inverting input |
| UCC27531 DBV Pin 3 | VDD; bias supply input |
| UCC27531 DBV Pin 4 | GND; all signals referenced to this node |
| UCC27531 DBV Pin 5 | OUTL; 5 A sink current output of driver |
| UCC27531 DBV Pin 6 | OUTH; 2.5 A source current output of driver |
| UCC27531 D Pin 7 | OUT; 5 A sink current output and 2.5 A source current output of driver |
| Datasheet Status | request_only |
Product Overview
The UCC27531 is a Texas Instruments single-channel high-speed gate driver for MOSFET and IGBT power switches. It provides a single non-inverting input and supports TTL and CMOS compatible input logic with thresholds independent of supply voltage. Device variants support enable function availability as Yes/No and output configuration as Split/Single.
The driver operates from a recommended VDD range of 10 V to 35 V, with 35 V maximum VDD identified for the UCC27531. At 18 V VDD, the driver provides 2.5 A peak source current and 5 A peak sink current. Timing parameters include 17 ns typical propagation delay, 15 ns typical rise time, and 7 ns typical fall time with a 1800 pF load.
Package options include SOT-23-6 DBV at 2.90 mm x 1.60 mm and SOIC-8 D at 4.90 mm x 3.91 mm. Assembly and limit data include 300°C lead temperature for 10 seconds, 260°C reflow temperature, -65°C to 150°C storage temperature, ±4000 V HBM ESD rating, and ±1000 V CDM ESD rating.
Key Features
- Single-channel high-speed driver for MOSFET and IGBT switches
- 2.5 A peak source current at 18 V VDD
- 5 A peak sink current at 18 V VDD
- 10 V to 35 V recommended VDD operating range
- 17 ns typical propagation delay
- 15 ns rise time with 1800 pF load
- 7 ns fall time with 1800 pF load
- TTL and CMOS compatible input logic
- Single non-inverting input, no inverting input support
- Integrated VDD undervoltage lockout holds output low
- Input and enable pins tolerate -5 VDC below ground
- Output held low when input is floating
Typical Applications
- MOSFET gate drive
- IGBT gate drive
- Power switch control
- Single-channel power stages
- TTL logic driven gate control
- CMOS logic driven gate control
- Split output gate drive
- Single output gate drive
Procurement Notes
When requesting a quote for UCC27531, buyers should confirm the manufacturer, package or case, required quantity, target date code, compliance documents, packing method, destination country and expected delivery schedule.
If alternatives are acceptable, buyers should share the approved vendor list, required electrical or optical limits, package constraints and qualification requirements. Any alternative part should be reviewed by the buyer's engineering team before production use.
For power IC and power device sourcing, voltage rating, current rating, power dissipation, package thermal performance, protection features, qualification grade and application conditions should be reviewed before approval.
FAQ
What type of driver is the UCC27531?
The UCC27531 is a Texas Instruments single-channel high-speed gate driver for MOSFET and IGBT power switches. It uses a single non-inverting input and supports TTL and CMOS compatible logic thresholds independent of supply voltage.
What are the peak output current ratings?
For the UCC27531 at 18 V VDD, the extracted datasheet facts list 2.5 A peak source current and 5 A peak sink current. The DBV package identifies OUTH as the source output and OUTL as the sink output.
What happens during undervoltage lockout or floating input?
The UCC27531 includes integrated undervoltage lockout on the VDD pin. During VDD UVLO, the output is held low. The output is also held low when the input pin is open or floating.
Which package options are listed for UCC27531?
The listed package and case options are SOT-23-6 DBV measuring 2.90 mm x 1.60 mm and SOIC-8 D measuring 4.90 mm x 3.91 mm.
Technical Review & Sourcing Note
Prepared by LDeepAI Component Sourcing Team. Reviewed for RFQ, documentation and alternative sourcing use. Last updated: June 30, 2026.
This page is based on manufacturer datasheet information and LDeepAI sourcing review. Specifications should be verified against the official manufacturer datasheet before final procurement or design approval. Final electrical, optical and reliability approval should be confirmed by the buyer's engineering team.