Key Selection Information
| Selection Parameter | Confirmed Information |
|---|---|
| Topology | Bootstrap high-side + low-side half-bridge driver |
| High-Side Range | Fully operational to 620 V; HB 700 V absolute max stated |
| Peak Drive | 1.8 A source / 2.8 A sink |
| Supply | 10 V to 20 V recommended VDD |
| Protection | Input interlock and 150 ns deadtime |
| HS Robustness | Logic operational to −11 V on HS stated feature |
| Timing | 100 ns typical propagation; 12 ns typical matching |
| Exact Package / Packing | SOIC (D), 8 pins; 2500-piece large tape and reel |
Product Overview
UCC27712DR drives the high- and low-side N-channel switches of a high-voltage half bridge using a floating bootstrap channel. Its 620 V operating capability targets offline converters and motor/inverter stages well beyond the 100–120 V range of drivers such as UCC27282.
Built-in interlock and about 150 ns dead time prevent simultaneous high-/low-side outputs from being commanded on. That improves shoot-through protection but also fixes a minimum timing behavior that must fit the power switch and modulation strategy.
Negative HS tolerance is important during hard commutation when the switch node rings below COM. Bootstrap diode/capacitor sizing and negative-node transient control remain external design responsibilities.
For related devices, see HKEQGOO’s Gate Drivers category.
Technical Specifications
| Parameter | Verified Information |
|---|---|
| Manufacturer | Texas Instruments |
| Exact MPN | UCC27712DR |
| Topology | Bootstrap high-side + low-side half-bridge driver |
| High-Side Range | Fully operational to 620 V; HB 700 V absolute max stated |
| Peak Drive | 1.8 A source / 2.8 A sink |
| Supply | 10 V to 20 V recommended VDD |
| Protection | Input interlock and 150 ns deadtime |
| HS Robustness | Logic operational to −11 V on HS stated feature |
| Timing | 100 ns typical propagation; 12 ns typical matching |
| Exact Package / Packing | SOIC (D), 8 pins; 2500-piece large tape and reel |
| Manufacturer Status | Active / Production |
| Part Marking | U27712 |
Functional Highlights
High-voltage bootstrap channel supports offline bridge nodes
The floating HO output follows a hundreds-of-volts switch node while the logic side remains ground-referenced, avoiding a separate isolated driver in some non-isolated control architectures.
Fixed interlock/deadtime is protection and a timing constraint
It reduces accidental cross-conduction but can increase body-diode/freewheel conduction if the application needs shorter optimized dead time.
Design Considerations
- Size the bootstrap capacitor from gate charge, leakage and maximum high-side on-time.
- Check switch-node negative ringing against the HS safe-operating area, not only the +620 V headline.
- Include the internal 150 ns dead time in modulation and switching-loss calculations.
Product Status and Exact Order Code
Manufacturer status: Active / Production
Texas Instruments lists UCC27712DR as Active / Production; SOIC (D), 8 pins; 2500-piece large tape and reel; Level-2-260C-1 YEAR; −40°C to +125°C; marking U27712.
Related Engineering Resources
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