December 2022

Up to 8 A Single Channel SiC MOSFET and IGBT Gate

Driver for Automotive Applications Providing Advanced

Active Clamping and Reinforced Isolation up to 1200 V

SIC1181KQ / SIC1182KQ

SCALE-iDriver Family

This Product is Covered by Patents and/or Pending Patent Applications.

Product Highlights

Highly Integrated, Compact Footprint

• ±8 A peak gate output current

• Integrated FluxLink™ technology providing reinforced isolation

• SiC MOSFET optimized Advanced Active Clamping

• Ultrafast short-circuit detection

• UVLO primary and secondary side

• Rail-to-rail stabilized output voltage

• Unipolar supply voltage for secondary-side

• Up to 150 kHz switching frequency

• Propagation delay jitter ±5 ns

• -40 °C to +125 °C operating ambient temperature

• High common-mode transient immunity

• eSOP package with 9.5 mm creepage and clearance, CTI 600

Protection / Safety Features

• Undervoltage lock-out protection for primary and secondary-side

including fault feedback

• Over-current detection for SiC MOSFETs with current-sense terminal

• Ultrafast short-circuit monitoring, turn-off and reporting

• Overvoltage limitation during SiC MOSFET turn-off

Full Safety and Regulatory Compliance

• 100% production partial discharge test

• 100% production HIPOT compliance testing at 8000 V peak for 1 s

• Reinforced insulation VDE V 0884-17 pending

• UL 1577 recognized

• AEC Q-100 qualified for automotive grade level 1

Green Package

• Halogen free and RoHS compliant

Applications

• Electric vehicle BEV traction drives

• Hybrid electric vehicle PHEV traction drives

• Electric vehicle on-board and off-board chargers

Figure 1. Typical Application Schematic.

Description

The SIC1181KQ and SIC1182KQ are single channel gate drivers for

SiC MOSFETs. Reinforced galvanic isolation is provided by Power

Integrations’ revolutionary solid insulator FluxLink technology. Up to

±8 A peak output drive current enables the product to drive devices

with nominal currents of up to 600 / 800 A (typical).

Additional features such as undervoltage lock-out (UVLO) for

primary-side and secondary-side and rail-to-rail output with tempera-

ture and process compensated output impedance guarantee safe

operation even in harsh conditions.

Furthermore, this gate driver IC comes along with short-circuit protection

(at and during turn-on phase) as well as overvoltage limitation by AAC

advanced active clamping (at turn-off phase) through a single sensing

pin. For SIC MOSFET with current-sense terminal, an adjustable

over-current detection can be realized.

Product Portfolio

Product1

Peak Output

Drive Current

Switch Rating

SIC1181KQ

8.0 A

750 V

SIC1182KQ

8.0 A

1200 V

Table 1. SCALE-iDriver Portfolio.

Notes:

1. Package: eSOP-R16B.

Figure 2. eSOP-R16B Package.

PI-8897-061219

SCALE-iDriver

Primary-Side

Logic

Secondary-Side

Logic

IN

SO

VCC

VIN

GND

VCC

VTOT

FluxLink

SNS

GH

VISO

VGXX

GL

VEE

COM

RCETH

CCOMPS

+

-

+

-