Texas Instruments
Automotive 4 A / 4 A single-channel low-side gate driver, -5 V input capability, SOT-23-5
The Texas Instruments UCC27517AQDBVRQ1 is the AEC-Q100 Grade 1 version of the UCC27517A single-channel low-side gate driver. It delivers symmetrical 4 A source and sink peak current with 13 ns typical propagation delay, runs from a 4.5 V to 18 V supply, and its inputs tolerate negative voltages down to -5 V. It drives MOSFETs, IGBTs and GaN FETs in on-board chargers, DC/DC converters, PFC stages and motor drives. Lead times on automotive TI parts remain extended; Cerametronics helps buyers locate traceable stock.
Key Specifications
Verify against the original datasheet before quoting.
| Peak Drive Current | 4 A source / 4 A sink (symmetrical) |
|---|---|
| Supply Voltage | 4.5 V to 18 V; 4 V typ UVLO |
| Timing | 13 ns typ propagation delay; 9 ns rise / 7 ns fall typ |
| Inputs | Dual inputs (IN+ non-inverting, IN- inverting), TTL/CMOS compatible, -5 V negative input capability |
| Qualification | AEC-Q100 Grade 1 (-40 to +125 °C ambient) |
| Package | SOT-23-5 (DBV), 2.9 x 2.8 mm, tape and reel |
Market Status
Extended Lead Time – Quote on Request Factory lead time is currently around 26 weeks.
Quality & Traceability
Cerametronics is ISO 9001 certified and products are RoHS compliant, with counterfeit screening and full traceability on every shipment. A Certificate of Conformance is available on request. For allocation-sensitive or high-risk lots, independent third-party lab verification can be arranged — just flag it on your RFQ. Any lot that fails incoming inspection is quarantined and never shipped.
FAQ
Can the commercial UCC27517ADBVR replace UCC27517AQDBVRQ1?
Electrically the pinout and drive are the same, but the commercial part is not AEC-Q100 qualified. For automotive programs, stay on the -Q1 orderable unless the end customer approves the change.
What happens to the output if the inputs float?
Per TI, the output is held low when inputs are floating and during VDD undervoltage lockout, so the power switch stays off.
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