Si827x Data Sheet
4 Amp ISOdriver with High Transient (dV/dt) Immunity
KEY FEATURES
The Si827x isolators are ideal for driving power switches used in a wide variety of power
supply, inverter, and motor control applications. The Si827x isolated gate drivers utilize
Silicon Laboratories' proprietary silicon isolation technology, supporting up to 2.5
kVRMS withstand voltage per UL1577 and VDE0884. This technology enables industry
leading common-mode transient immunity (CMTI), tight timing specifications, reduced
variation with temperature and age, better part-to-part matching, and extremely high reli-
ability. It also offers unique features such as separate pull-up/down outputs, driver shut-
down on UVLO fault, and precise dead time programmability. The Si827x series offers
longer service life and dramatically higher reliability compared to opto-coupled gate driv-
ers.
The Si827x drivers utilize Silicon Labs' proprietary silicon isolation technology, which
provides up to 2.5 kVRMS withstand voltage per UL1577 and fast 60 ns propagation
times. Driver outputs can be grounded to the same or separate grounds or connected to
a positive or negative voltage. The TTL level compatible inputs with >400 mV hysteresis
are available in individual control input (Si8271/2/3/5) or PWM input (Si8274) configura-
tions. High integration, low propagation delay, small installed size, flexibility, and cost-
effectiveness make the Si827x family ideal for a wide range of isolated MOSFET/IGBT
and SiC or GaN FET gate drive applications.
Automotive Grade is available for certain part numbers. These products are built using
automotive-specific flows at all steps in the manufacturing process to ensure the robust-
ness and low defectivity required for automotive applications.
Industrial Applications
• Switch-mode Power Supplies
• Solar Power Inverters
• Motor control and drives
• Uninterruptible Power Supplies
• High-Power Class D Amplifiers
Safety Regulatory Approvals
• UL 1577 recognized
• Up to 2500 Vrms for 1 minute
• CSA component notice 5A approval
• IEC 60950-1 (reinforced insulation)
• VDE certification conformity
• VDE 0884 Part 10
• CQC certification approval
• GB4943.1
Automotive Applications
• On-board chargers
• Battery management systems
• Charging stations
• Traction inverters
• Hybrid Electric Vehicles
• Battery Electric Vehicles
• Single, dual, or high-side/low-side drivers
• Single PWM or dual digital inputs
• High dV/dt immunity:
• 200 kV/µs CMTI
• 400 kV/µs Latch-up
• Separate pull-up/down outputs for slew
rate control
• Wide supply range:
• Input supply: 2.5–5.5 V
• Driver supply: 4.2–30 V
• Very low jitter of 200 ps p-p
• 60 ns propagation delay (max)
• Dedicated enable pin
• Silicon Labs’ high performance isolation
technology:
• Industry leading noise immunity
• High speed, low latency and skew
• Best reliability available
• Compact packages:
• 8-pin SOIC
• 16-pin SOIC
• QFN-14 (pin to pin compatible with
LGA-14 packages)
• Wide temperature range:
• –40 to 125 °C
• AEC-Q100 Qualified
• Automotive-grade OPNs available
• AIAG compliant PPAP documentation
support
• IMDS and CAMDS listing support
silabs.com
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Rev. 1.0
Si827x Data Sheet
Ordering Guide
1. Ordering Guide
Table 1.1. Si827x Ordering Guide
Ordering
Part Number
Products Available Now
Si8271AB-IS
Si8271BB-IS
Si8271DB-IS
Si8271GB-IS
Si8273AB-IS1
Si8273ABD-IS1
Si8273AB-IM1
Si8273ABD-IM1
Si8273DB-IS1
Si8273DBD-IS1
Si8273GB-IS1
Si8273GBD-IS1
Si8273BB-IS1
Si8273BBD-IS1
Si8274AB1-IS1
Si8274AB4D-IS1
Si8274AB1-IM1
Si8274AB4D-IM1
Si8274BB1-IS1
Si8274DB1-IS1
Si8274GB1-IS1
Si8274GB4D-IS1
Si8274GB1-IM1
Si8274GB4D-IM1
Si8275GB-IS1
Si8275GBD-IS1
Si8275AB-IM1
Si8275ABD-IM1
VI
VI
VI
VI
VIA/VIB
VIA/VIB
VIA/VIB
VIA/VIB
VIA/VIB
VIA/VIB
VIA/VIB
VIA/VIB
VIA/VIB
VIA/VIB
PWM
PWM
PWM
PWM
PWM
PWM
PWM
PWM
PWM
PWM
VIA/VIB
VIA/VIB
VIA/VIB
VIA/VIB
Single
Single
Single
Single
HS/LS
HS/LS
HS/LS
HS/LS
HS/LS
HS/LS
HS/LS
HS/LS
HS/LS
HS/LS
HS/LS
HS/LS
HS/LS
HS/LS
HS/LS
HS/LS
HS/LS
HS/LS
HS/LS
HS/LS
Dual
Dual
Dual
Dual
5
8
12
3
5
5
5
5
12
12
3
3
8
8
5
5
5
5
8
12
3
3
3
3
3
3
5
5
N
N
N
N
N
Y
N
Y
N
Y
N
Y
N
Y
N
Y
N
Y
N
N
N
Y
N
Y
N
Y
N
Y
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
10-200
20-700
10-200
20-700
10-200
10-200
10-200
20-700
10-200
20-700
N/A
N/A
N/A
N/A
Y
Y
Y
Y
Y
N
Y
N
Y
N
Y
N
Y
N
Y
N
Y
N
Y
Y
Y
N
Y
N
Y
N
Y
N
SOIC-8 NB
SOIC-8 NB
SOIC-8 NB
SOIC-8 NB
SOIC-16 NB
SOIC-16 NB
QFN-14
QFN-14
SOIC-16 NB
SOIC-16 NB
SOIC-16 NB
SOIC-16 NB
SOIC-16 NB
SOIC-16 NB
SOIC-16 NB
SOIC-16 NB
QFN-14
QFN-14
SOIC-16 NB
SOIC-16 NB
SOIC-16 NB
SOIC-16 NB
QFN-14
QFN-14
SOIC-16 NB
SOIC-16 NB
QFN-14
QFN-14
2.5 kVrms
2.5 kVrms
2.5 kVrms
2.5 kVrms
2.5 kVrms
2.5 kVrms
2.5 kVrms
2.5 kVrms
2.5 kVrms
2.5 kVrms
2.5 kVrms
2.5 kVrms
2.5 kVrms
2.5 kVrms
2.5 kVrms
2.5 kVrms
2.5 kVrms
2.5 kVrms
2.5 kVrms
2.5 kVrms
2.5 kVrms
2.5 kVrms
2.5 kVrms
2.5 kVrms
2.5 kVrms
2.5 kVrms
2.5 kVrms
2.5 kVrms
Inputs
Driver
Configuration
Output
UVLO
Integrated
Deglitcher
Dead Time
Adjustable
Range
Low
Jitter
Package
Isolation
Rating
Contact Silicon Labs Sales for These Options
Si8271ABD-IS
Si8271BBD-IS
VI
VI
Single
Single
5
8
Y
Y
N/A
N/A
N
N
SOIC-8 NB
SOIC-8 NB
2.5 kVrms
2.5 kVrms
silabs.com
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Rev. 1.0 | 2
Si827x Data Sheet
Ordering Guide
Ordering
Part Number
Si8271DBD-IS
Si8271GBD-IS
Si8273BB-IS1
Si8273BBD-IS1
Si8274BB4D-IS1
Si8274DB4D-IS1
Si8275AB-IS1
Si8275ABD-IS1
Si8275BB-IS1
Si8275BBD-IS1
Si8275DB-IS1
Si8275DBD-IS1
Si8275BB-IM1
Si8275BBD-IM1
Si8275DB-IM1
Si8275DBD-IM1
Si8275GB-IM1
Si8275GBD-IM1
Si8275DA-IM1
Si8275DAD-IM1
VI
VI
VIA/VIB
VIA/VIB
PWM
PWM
VIA/VIB
VIA/VIB
VIA/VIB
VIA/VIB
VIA/VIB
VIA/VIB
VIA/VIB
VIA/VIB
VIA/VIB
VIA/VIB
VIA/VIB
VIA/VIB
VIA/VIB
VIA/VIB
Inputs
Driver
Configuration
Single
Single
HS/LS
HS/LS
HS/LS
HS/LS
Dual
Dual
Dual
Dual
Dual
Dual
Dual
Dual
Dual
Dual
Dual
Dual
Dual
Dual
Output
UVLO
12
3
8
8
8
12
5
5
8
8
12
12
8
8
12
12
3
3
12
12
Integrated
Deglitcher
Y
Y
N
Y
Y
Y
N
Y
N
Y
N
Y
N
Y
N
Y
N
Y
N
Y
Dead Time
Adjustable
Range
N/A
N/A
N/A
N/A
20-700
20-700
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
Low
Jitter
N
N
Y
N
N
N
Y
N
Y
N
Y
N
Y
N
Y
N
Y
N
Y
N
Package
Isolation
Rating
2.5 kVrms
2.5 kVrms
2.5 kVrms
2.5 kVrms
2.5 kVrms
2.5 kVrms
2.5 kVrms
2.5 kVrms
2.5 kVrms
2.5 kVrms
2.5 kVrms
2.5 kVrms
2.5 kVrms
2.5 kVrms
2.5 kVrms
2.5 kVrms
2.5 kVrms
2.5 kVrms
1 kVrms
1 kVrms
SOIC-8 NB
SOIC-8 NB
SOIC-16 NB
SOIC-16 NB
SOIC-16 NB
SOIC-16 NB
SOIC-16 NB
SOIC-16 NB
SOIC-16 NB
SOIC-16 NB
SOIC-16 NB
SOIC-16 NB
QFN-14
QFN-14
QFN-14
QFN-14
QFN-14
QFN-14
QFN-14
QFN-14
silabs.com
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Rev. 1.0 | 3
Si827x Data Sheet
Ordering Guide
Automotive Grade OPNs
Automotive-grade devices are built using automotive-specific flows at all steps in the manufacturing process to ensure robustness and
low defectivity. These devices are supported with AIAG-compliant Production Part Approval Process (PPAP) documentation, and fea-
ture International Material Data System (IMDS) and China Automotive Material Data System (CAMDS) listing. Qualifications are compli-
ant with AEC-Q100, and a zero-defect methodology is maintained throughout definition, design, evaluation, qualification, and mass pro-
duction steps.
Table 1.2. Ordering Guide for Automotive Grade OPNs
1, 2, 4, 5
Ordering Part
Numbers (OPNs)
Si8271BB-AS
Si8271DB-AS
Si8273DB-AS1
Si8274DB1-AS1
Si8275DB-AS1
Inputs
Driver Configu-
ration
Single
Single
HS/LS
HS/LS
Dual
Output
UVLO
8
12
12
12
12
Integrated
Deglitcher
N
N
N
N
N
Dead Time
Adjustable
Range
N/A
N/A
N/A
10-100
N/A
Low
Jitter
Y
Y
Y
Y
Y
Package
Isolation
Rating
2.5 kVrms
2.5 kVrms
2.5 kVrms
2.5 kVrms
2.5 kVrms
VI
VI
VIA/VIB
PWM
VIA/VIB
SOIC-8 NB
SOIC-8 NB
SOIC-16 NB
SOIC-16 NB
SOIC-16 NB
Note:
1. All packages are RoHS-compliant with peak reflow temperatures of 260 °C according to the JEDEC industry standard classifica-
tions.
2. “Si” and “SI” are used interchangeably.
3. An "R" at the end of the part number denotes tape and reel packaging option.
4. Automotive-Grade devices (with an "–A" suffix) are identical in construction materials, topside marking, and electrical parameters
to their Industrial-Grade (with a "–I" suffix) version counterparts. Automotive-Grade products are produced utilizing full automotive
process flows and additional statistical process controls throughout the manufacturing flow. The Automotive-Grade part number is
included on shipping labels.
5. Additional Ordering Part Numbers may be available in Automotive-Grade. Please contact your local Silicon Labs sales represen-
tative for further information.
6. Referring to Section 8 Top Marking, the Manufacturing Code represented by either “RTTTTT” or “TTTTTT” contains as its first
character a letter in the range N through Z to indicate Automotive-Grade.
silabs.com
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Rev. 1.0 | 4
Table of Contents
1. Ordering Guide
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
2. System Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.1 Typical Operating Characteristics .
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.10
.11
.11
.11
.13
.13
.14
.15
.15
.15
.15
.16
.16
.17
2.2 Family Overview and Logic Operation During Startup
2.2.1 Products . . . . . . . . . . . . .
2.2.2 Device Behavior . . . . . . . . . . .
2.3 Power Supply Connections .
2.5 Layout Considerations .
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2.4 Power Dissipation Considerations .
2.6 Undervoltage Lockout Operation
2.6.1 Device Startup . . . .
2.6.2 Undervoltage Lockout . .
2.6.3 Control Inputs . . . . .
2.6.4 Enable Input . . . . .
2.8 De-glitch Feature .
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2.7 Programmable Dead Time and Overlap Protection
3. Applications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.1 High-Side/Low-Side Driver
3.2 Dual Driver .
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18
.18
.19
4. Electrical Specifications
4.1 Test Circuits
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.23
.24
4.2 Regulatory Information (Pending) .
5. Pin Descriptions
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
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.29
.30
.31
5.1 Si8271 Pin Descriptions
5.3 Si8274 Pin Descriptions
5.2 Si8273/75 Pin Descriptions .
6. Package Outlines . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6.1 Package Outline: 16-Pin Narrow-Body SOIC
6.2 Package Outline: 8-Pin Narrow Body SOIC .
6.3 Package Outline: 14 LD QFN.
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32
.32
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.36
7. Land Patterns
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7.1 Land Pattern: 16-Pin Narrow Body SOIC .
7.2 Land Pattern: 8-Pin Narrow Body SOIC .
7.3 Land Pattern: 14 LD QFN .
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8. Top Markings
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
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.40
8.1 Si827x Top Marking (16-Pin Narrow Body SOIC) .
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