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ISO5851

SLLSEN5A – JUNE 2015 – REVISED JUNE 2015

ISO5851 High-CMTI 2.5-A / 5-A Isolated IGBT, MOSFET Gate Driver

with Active Safety Features

1 Features

3 Description

1

•

2.5-A Peak Source and 5-A Peak Sink Currents

driver for IGBTs and MOSFETs with 2.5-A source

•

Short Propagation Delay: 76 ns (Typ), 110 ns

and 5-A sink current. The input side operates from a

(Max)

single 3-V to 5.5-V supply. The output side allows for

•

2-A Active Miller Clamp

a supply range from minimum 15-V to maximum

30-V. Two complementary CMOS inputs control the

•

Output Short-Circuit Clamp

output state of the gate driver. The short propagation

•

Fault Alarm upon Desaturation Detection is

time of 76 ns assures accurate control of the output

Signaled on FLT and Reset Through RST

stage.

•

Input and Output Under Voltage Lock-Out (UVLO)

An internal desaturation (DESAT) fault detection

with Ready (RDY) Pin Indication

recognizes

when

the

IGBT

is

in

an

overload

•

Active Output Pull-down and Default Low Outputs

condition. Upon a DESAT detect the gate driver

with Low Supply or Floating Inputs

immediately off.

•

3-V to 5.5-V Input Supply Voltage

•

15-V to 30-V Output Driver Supply Voltage

When desaturation is active, a fault signal is sent

across the isolation barrier pulling the FLT output at

•

CMOS Compatible Inputs

the input side low and blocking the isolator input. The

•

Rejects Input Pulses and Noise Transients

FLT output condition is latched and can be reset

Shorter Than 20 ns

through a low-active pulse at the RST input.

•

100-kV/

μs Minimum Common-Mode Transient

When the IGBT is turned off during normal operation

with bipolar output supply, the output is hard clamp to

•

Operating Temperature: –40°C to 125°C Ambient

•

Safety and Regulatory Approvals:

clamp can be used, allowing Miller current to sink

across a low impedance path preventing IGBT to be

–

dynamically turned on during high voltage transient

Reinforced Isolation per DIN V VDE V 0884-10

conditions.

(VDE V 0884-10):2006-12

–

Device Information(1)

–

CSA Component Acceptance Notice 5A, IEC

PART NUMBER

PACKAGE

BODY SIZE (NOM)

60950-1, IEC 60601-1 and IEC 61010-1 End

ISO5851

SOIC (16)

10.30 mm × 7.50 mm

Equipment Standards

(1) For all available packages, see the orderable addendum at

–

CQC Certification per GB4943.1-2011

the end of the datasheet.

–

All Certifications are Planned

Functional Block Diagram

2 Applications

•

Isolated IGBT and MOSFET Drives in

–

Industrial Motor Control Drives

–

Industrial Power Supplies

–

Solar Inverters

–

HEV and EV Power Modules

–

Induction Heating

1

An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,

intellectual property matters and other important disclaimers. PRODUCTION DATA.