Skip to main content

We use cookies to understand how you use our site and improve your experience. See our Privacy Policy.

SI8261BBC-AP

Isolated Gate Driver

The SI8261BBC-AP is a isolated gate driver from Silicon Labs. View the full SI8261BBC-AP datasheet below including key specifications, electrical characteristics.

SI8261BBC-AP shares its datasheet with SI8261BCC-C-IS, whose page lists every part number it covers.

Official SI8261BBC-AP datasheet (PDF) — the source this page was extracted from.

Manufacturer

Silicon Labs

Category

Optocouplers

SI8261BBC-AP Key Specifications

ParameterValue
QualificationAEC-Q100
UVLO Threshold8V option
Isolation Rating3.75 kVrms
Propagation Delay60ns
Supply Voltage (VDD)6.5V to 30V
Operating Temperature-40°C to +125°C
Input Current (IF(ON))6mA to 30mA
Peak Output Current (Sink)4.0A typical
Output Resistance Low (Sink)0.8Ω typical
Peak Output Current (Source)1.8A typical (4.0A driver variant)
Common-Mode Transient Immunity>50 kV/μs typical
Output Resistance High (Source)2.6Ω typical
Input Current Threshold (IF(TH))3.6mA max
Supply Current (Output High, VDD=15V)1.8mA typical, 2.4mA max

SI8261BBC-AP Overview

Part: Si826x family (e.g., SI8261BCC-C-IS) — Silicon Laboratories

Type: Isolated Gate Driver (LED emulator input)

Description: 5 kV RMS isolated gate driver with LED-emulator input, up to 4.0 A peak output drive, 6.5–30 V VDD, and 60 ns max propagation delay.

Operating Conditions:

  • Supply voltage (VDD): 6.5–30 V
  • Operating temperature (ambient): -40 to +125 °C
  • Input current IF(ON): 6–30 mA

Absolute Maximum Ratings:

  • The Absolute Maximum Ratings table is not included in the provided text; only IEC safety limiting values are given (case temperature TS 140 °C, output power PS 1 W)

Key Specs:

  • Supply current, output high (IF = 10 mA): 1.8 mA typ / 2.4 mA max at VDD = 15 V; 2.0 mA typ / 2.7 mA max at VDD = 30 V
  • Input current threshold IF(TH): 3.6 mA max; hysteresis 0.34 mA typ
  • Input forward voltage (ON): 1.6–2.8 V
  • Si826xBxx peak source current: 1.8 A typ (0.5 A min); peak sink current: 4.0 A typ (1.2 A min)
  • Si826xBxx output resistance: ROH 2.6 Ω typ (5.1 Ω max) at IOH = -1 A; ROL 0.8 Ω typ (2.0 Ω max) at IOL = 2 A
  • Propagation delay (CL = 200 pF): tPLH 20–60 ns; tPHL 10–50 ns; pulse width distortion 28 ns max
  • Rise/fall time (CL = 200 pF): 5.5 ns / 8.5 ns typ
  • CMTI: 35 kV/μs min, 50 kV/μs typ (VCM = 1500 V)
  • UVLO thresholds (rising): 5.6 V typ (A option), 8.4 V typ (B option), 12 V typ (C option)

Features:

  • Pin-compatible, drop-in upgrade for popular opto-coupled gate drivers
  • Low-power diode emulator input
  • 0.6 A and 4.0 A peak output drive options, rail-to-rail output
  • Up to 5000 V RMS isolation; 10 kV surge capability
  • Multiple UVLO options (5, 8, 12 V) with hysteresis
  • AEC-Q100 qualified; automotive-grade OPNs available
  • UL 1577, CSA 5A, VDE 0884-10, CQC approvals

Applications:

  • IGBT/MOSFET gate drives
  • Industrial, HEV and renewable energy inverters
  • AC, brushless and DC motor controls and drives
  • Variable speed motor control in consumer white goods
  • Isolated switch mode and UPS power supplies

Package:

  • SOIC-8 (narrow body)
  • DIP8 (gull-wing)
  • SDIP6 (stretched SO-6)

SI8261BBC-AP Features

  • Pin-compatible, drop-in upgrades for popular high speed opto-coupled gate drivers
  • Low power diode emulator simplifies design-in process
  • 0.6 and 4.0 Amp peak output drive current
  • Rail-to-rail output voltage
  • Performance and reliability advantages vs. opto-drivers
  • Resistant to temperature and age
  • 10x lower FIT rate for longer service life
  • 14x tighter part-to-part matching
  • Higher common-mode transient immunity: >50 kV/μs typical
  • Robust protection features
  • Multiple UVLO ordering options (5, 8, and 12 V) with hysteresis

SI8261BBC-AP Applications

  • IGBT/ MOSFET gate drives
  • Industrial, HEV and renewable energy inverters
  • AC, Brushless, and DC motor controls and drives

SI8261BBC-AP Pin Configuration

Figure 17. Pin Configuration

Table 11. Pin Descriptions (SOIC-8, DIP8)

PinNameDescription
1NC*No connect.
2ANODEAnode of LED emulator. V O follows the signal applied to this input with respect to the CATHODE input.
3CATHODECathode of LED emulator. V O follows the signal applied to ANODE with respect to this input.
4NC*No connect.
5GNDExternal MOSFETsourceconnection and ground reference forV DD . This terminal is typically connected to ground but may be tied to a negative or positive voltage.
6V OOutput signal. Both V O pins are required to be shorted together for 4.0 A compliance.
7V OOutput signal. Both V O pins are required to be shorted together for 4.0 A compliance.
8V DDOutput-side power supply input referenced to GND (30 V max).

*Note: No Connect. These pins are not internally connected. To maximize CMTI performance, these pins should be connected to the ground plane.

Table 11. Pin Descriptions (SOIC-8, DIP8)

SI8261BBC-AP Electrical Characteristics

Table 1. Recommended Operating Conditions

ParameterSymbolMinTypMaxUnit
Supply VoltageV DD6.5-30V
Input CurrentI F(ON) (see Figure 1)6-30mA
Operating Temperature (Ambient)T A-40-125°C

SI8261BBC-AP Package Information

Figure 19 illustrates the package details for the Si826x in an 8- pin narrow-body SOIC pack age. Table 15 lists the values for the dimensions shown in the illustration.

Figure 19. 8-Pin Narrow Body SOIC Package Table 15. 8-Pin Narrow Body SOIC Package Diagram Dimensions

SymbolMillimeters - MinMillimeters - Max
A1.351.75
A10.100.25
A21.40 REF1.55 REF
B0.330.51
C0.190.25
D4.805.00
E3.804.00
e1.27 BSC1.27 BSC
H5.806.20
h0.250.50
L0.401.27
08

Figure 19. 8-Pin Narrow Body SOIC Package Table 15. 8-Pin Narrow Body SOIC Package Diagram Dimensions

Variants on the same datasheet

These parts have exact links to the same datasheet. They are candidates to compare, not verified drop-in replacements; check package, pinout and electrical limits.

Part NumberManufacturerPackage
SI8261AAC-C-IPSilicon LabsDIP-8
SI8261AAC-C-ISSkyworks Solutions8-SOIC (0.154", 3.90mm Width)
SI8261AAD-C-ISSilicon LabsSDIP-6
SI8261ABC-C-IPSilicon LabsDIP-8
SI8261ABC-C-ISSilicon LabsSOIC-8
SI8261ABD-C-ISSilicon LabsSDIP-6
SI8261ACC-C-IPSilicon Labs—
SI8261ACC-C-ISSilicon LabsSOIC-8
SI8261ACD-C-ISSkyworks Solutions6-SOIC (0.295", 7.50mm Width)
SI8261BAC-C-IPSilicon LabsDIP-8
SI8261BAC-C-ISSkyworks Solutions8-SOIC (0.154", 3.90mm Width)
SI8261BAD-C-ISSkyworks Solutions6-SOIC (0.295", 7.50mm Width)
SI8261BBC-ASSilicon LabsSOIC-8
SI8261BBC-C-IPSilicon Labs—
SI8261BBC-C-ISSkyworks Solutions8-SOIC (0.154", 3.90mm Width)
SI8261BBD-C-ISSilicon LabsSDIP-6
SI8261BCC-ASSilicon LabsSOIC-8
SI8261BCC-C-IPSilicon LabsDIP-8
SI8261BCC-C-ISSilicon LabsSOIC-8 (Narrow body)
SI8261BCD-ASSilicon LabsSDIP-6
SI8261BCD-C-ISSkyworks Solutions6-SOIC (0.295", 7.50mm Width)

Other Optocouplers

  • EL357N – Everlight, Phototransistor Photocoupler
  • EL357N-G-TA – Everlight, Phototransistor Optocoupler
  • EL357NA – Everlight, Phototransistor Photocoupler
  • EL357NB – Everlight, Phototransistor Photocoupler
  • EL357NC – Everlight, Phototransistor Photocoupler
  • EL357ND – Everlight, Phototransistor Photocoupler
  • EL357NE – Everlight, Phototransistor Photocoupler
  • EL357NF – Everlight, Phototransistor Photocoupler

All Optocouplers datasheetsAll Silicon Labs datasheets (179)

Data on this page is extracted from publicly available manufacturer datasheets using automated tools including AI. It may contain errors or omissions. Always verify specifications against the official manufacturer datasheet before making design or purchasing decisions. See our Terms of Service. Rights holders can submit a takedown request.

Ask your AI agent about the SI8261BBC-AP

Connect SheetsData to Claude, Cursor, Codex or any MCP client and your agent reads this datasheet for you: pinout, limits, register maps and design checks, with the numbers taken from the PDF.

claude mcp add --transport http sheetsdata https://mcp.sheetsdata.com/mcp

Then ask: "Can the SI8261BBC-AP run from my 12 V rail? Check it against the datasheet limits."

Create a free account $2 of usage every month, no card needed.