www.power.com November 2019
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 pending VDE V 0884-11 certication
• UL 1577 recognized
• AEC Q-100 qualied 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
Product
1
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
V
IN
GND
V
CC
V
TOT
FluxLink
SNS
GH
VISO
VGXX
GL
VEE
COM
R
CETH
C
COMPS
+
-
+
-
Rev. B 11/19
2
SIC1181KQ / SIC1182KQ
www.power.com
Pin Functional Description
VCC Pin (Pin 1)
This pin is the primary-side supply voltage connection.
GND Pin (Pin 3-6)
This pin is the connection for the primary-side ground potential.
All primary-side voltages refer to this pin.
IN Pin (Pin 7)
This pin is the input for the logic command signal.
SO Pin (Pin 8)
This pin is the output for the logic fault signal (open drain).
NC Pins (Pin 9)
This pin must be un-connected. Minimum PCB pad size for soldering
is required.
VEE Pin (Pin 10)
Common (MOSFET source) output supply voltage.
SNS Pin (Pin 11)
This pin is the sense input detecting short-circuit events at turn-on
and limiting overvoltages at turn-off.
SiC MOSFET with sense function can be used with SNS pin as
over-current monitor.
VGXX Pin (Pin 12)
This pin is the bootstrap and charge pump supply voltage source.
GH Pin (Pin 13)
This pin is the driver output-sourcing current (turn-on) connection.
VISO Pin (Pin 14)
This pin is the secondary-side positive supply voltage.
COM Pin (Pin 15)
This pin provides the secondary-side reference potential.
GL Pin (Pin 16)
This pin is the driver output-sinking current (turn-off) connection.
Figure 3. Functional Block Diagram.
Figure 4. Pin Conguration.
PI-8774b-080619
IN
GND
VEE
COM
GL
GH
VISO
VISO
VGXX
SNS
+15 V...
0 V
...-4 V...
VISO
VEE
COM
CORE
LOGIC
SO
VCC
GALVANIC ISOLATION
FluxLink
TRANSCEIVER
(BIDIRECTIONAL)
CORE LOGIC
SUPPLY MONITORING
FAILURE MANAGEMENT
SIGNAL PROCESSING
GATE DRIVER
CONTROL
TRANSCEIVER
(BIDIRECTIONAL)
LEVEL
SHIFTER
BOOTSTRAP
CHARGE PUMP
VEE CONTROLLER
POWER MANAGEMENT
VDS MEASUREMENT
or OVERCURRENT SENSE
AROC
TURN-ON
TURN-OFF
UVLO