Key Selection Information
| Selection Parameter | Confirmed Information |
|---|---|
| Input Style | Optocoupler-compatible e-diode input |
| Input Current | 7 mA to 16 mA recommended on-current |
| Drive Strength | 4.5 A peak source / 5.3 A peak sink typical |
| Isolation / CMTI | 5.7 kVRMS reinforced; 150 kV/µs minimum CMTI |
| UVLO Variant | B version: 8 V UVLO; 10 V to 33 V recommended VCC−VEE |
| Timing | 105 ns maximum propagation delay |
| Package Isolation Geometry | Stretched SO-6 with >8.5 mm creepage/clearance |
| Exact Packing | SOIC (DWY), 6 pins; 850-piece large tape and reel; marking UC23513B |
Product Overview
UCC23513BDWYR is the B-version of TI’s opto-compatible reinforced isolated gate driver. Its exact differentiator is the lower 8 V UVLO option: TI recommends 10 V to 33 V VCC−VEE for the B variant, versus the higher-voltage UVLO of the non-B device.
The input is an emulated diode rather than an aging LED. That preserves a current-driven, optocoupler-style interface while providing capacitive-isolation timing and CMTI performance. The recommended forward on-current is 7 mA to 16 mA, so a typical MCU pin generally needs a buffer/current-setting network.
This part is especially relevant when an existing optocoupler gate-driver footprint/interface must be modernized without moving to a CMOS logic-input driver architecture.
For related devices, see HKEQGOO’s Isolators – Gate Drivers category.
Technical Specifications
| Parameter | Verified Information |
|---|---|
| Manufacturer | Texas Instruments |
| Exact MPN | UCC23513BDWYR |
| Input Style | Optocoupler-compatible e-diode input |
| Input Current | 7 mA to 16 mA recommended on-current |
| Drive Strength | 4.5 A peak source / 5.3 A peak sink typical |
| Isolation / CMTI | 5.7 kVRMS reinforced; 150 kV/µs minimum CMTI |
| UVLO Variant | B version: 8 V UVLO; 10 V to 33 V recommended VCC−VEE |
| Timing | 105 ns maximum propagation delay |
| Package Isolation Geometry | Stretched SO-6 with >8.5 mm creepage/clearance |
| Exact Packing | SOIC (DWY), 6 pins; 850-piece large tape and reel; marking UC23513B |
| Manufacturer Status | Active / Production |
| Part Marking | UC23513B |
Functional Highlights
8 V UVLO changes the usable gate-supply envelope
The B variant can operate with lower output-side supply voltage than the non-B version. That matters for MOSFET/SiC gate-drive rails where a 12 V-class UVLO might prevent startup or cause nuisance dropouts.
e-diode compatibility retains current-mode noise immunity without LED aging
Input resistor design still matters: supply tolerance, buffer impedance and e-diode forward-voltage spread must keep IF inside the verified 7-16 mA range.
Design Considerations
- Size the input resistor/buffer for worst-case 7-16 mA e-diode current across supply and temperature.
- Choose B versus non-B from the intended gate-drive rail and UVLO requirement; do not treat the suffix as packing-only.
- Maintain stretched-package creepage/clearance on the PCB and keep primary/secondary copper from compromising the barrier.
Product Status and Exact Order Code
Manufacturer status: Active / Production
Texas Instruments lists UCC23513BDWYR as Active / Production; SOIC (DWY), 6 pins; 850-piece large tape and reel; Level-2-260C-1 YEAR; −40°C to +125°C; marking UC23513B.
Related Engineering Resources
Quality & Verification Support
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For the same TI UCC23513 opto-compatible 5.7-kVrms reinforced isolated-gate-driver family with a higher typical gate-drive undervoltage-lockout threshold, compare UCC23513DWYR (12-V UVLO) with this UCC23513BDWYR (8-V UVLO). Both are 6-pin SOIC (DWY) ordering versions with 4.5-A source and 5.3-A sink peak drive capability. Check the applied gate-drive rail and MOSFET/IGBT turn-on requirements; the B suffix affects protection behavior and should not be ignored during a BOM change.
