ISL78444AVEZ-T7A datasheet, PDF

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ISL78444AVEZ-T7A: Description100V Boot, 4A Peak, Half-Bridge Driver with Single PWM Input and Adaptive Dead Time Control; CategoryAnalog mixed-signal IC Drivers and interfaces; File Size2MB，34 Pages; ManufacturerRenesas Electronics Corporation; Websitehttps://www.renesas.com/

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ISL78444AVEZ-T7A Overview

100V Boot, 4A Peak, Half-Bridge Driver with Single PWM Input and Adaptive Dead Time Control

ISL78444AVEZ-T7A Parametric

Parameter Name	Attribute value
Brand Name	Renesas
Maker	Renesas Electronics Corporation
Parts packaging code	TSSOP-EP
package instruction	,
Contacts	14
Manufacturer packaging code	M14.173B14
Reach Compliance Code	compliant
Interface integrated circuit type	HALF BRIDGE BASED MOSFET DRIVER
Base Number Matches	1

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DATASHEET

ISL78424, ISL78434, ISL78444

100V Boot, 4A Peak, Half-Bridge Driver with Single PWM Input and Adaptive

Dead Time Control

The

ISL78424, ISL78434,

and

ISL78444

are Automotive

Grade (AEC-Q100 Grade 1) high voltage, high

frequency, half-bridge NMOS FET drivers for driving

the gates of up to 70V half-bridge topologies.

The family of half-bridge drivers feature 3A sourcing,

4A sinking peak gate drive current. The ISL78424 and

ISL78444 feature a single tri-level PWM input for

controlling both gate drivers. The ISL78434 has dual

independent inputs for controlling the high-side and

low-side driver separately. The ISL78424 and ISL78434

have independent sourcing and sinking pins for each gate

driver while ISL78444 has a single combined

sourcing/sinking output for each gate driver.

Strong gate drive strength and the Adaptive Dead Time

(ADT) feature allow this family of drivers to switch high

voltage, low r

DS(ON)

power FETs in half-bridge

topologies at high operating frequencies while providing

shoot-through protection and minimizing dead time

switching losses.

The ISL78424, ISL78434, and ISL78444 are offered in a 14

Ld HTSSOP package that complies with 100V conductor

spacing per IPC-2221B. The ISL78444 is pin compatible

with the ISL78420. All devices are specified across a

wide ambient temperature range of -40°C to +140°C.

FN9357

Rev.0.00

Sep 10, 2018

Features

• Patented gate-sensed adaptive dead time control

provides shoot-through protection and mimized dead

time

• Unique tri-level PWM input for integration with

Renesas multiphase controllers (for example,

ISL78225 and ISL78226)

• 3A sourcing and 4A sinking output current

• On-chip 3Ω bootsrap FET switch

• Programmable dead time delay with single resistor

• Tri-level PWM input (ISL78424, ISL78444)

• Independent HI/LI inputs (ISL78434)

• Separate source/sink pins at driver outputs

(ISL78424, ISL78434)

• Bootstrap and VDD Undervoltage Lockout (UVLO)

• Wide supply range: 8V to 18V

• Bootstrap supply maximum voltage: 100V

• Maximum phase voltage: 86V

• Minimum phase voltage: -10V

Applications

• Automotive half-bridge and 3-phase motor driver

• 12V to 24V and 12V to 48V bidirectional DC/DC

(with ISL78226, ISL78224 controllers)

• Multi-phase boost (with ISL78220 and ISL78225

controllers)

Related Literature

For a full list of related documents, visit our website:

•

ISL78424, ISL78434, ISL78444

product pages

SINK

V_BUS

12V

48V

BOOT

SOURCE

VDD

LO_H

LO_L

VSS

PWM

RDT

SINK

SOURCE

VOUT

PWM

VDD

RDT

PWM1

PWM2

ISL78226 PWM3

6-Phase

DC/DC PWM4

Controller PWM5

PWM6

VSS

EPAD

HO_H

HO_L

ISL78444

ISL78424

AGND

Phase #1

Phase #2

Phase #3

Phase #4

Phase #5

Phase #6

From

Controller

Figure 1. Independent Source and Sink Outputs for

Optimizing Gate Drive Current and Adaptive Dead Time

Sensing

Figure 2. NMOS Half-Bridge Driver for 12V-48V Bi-Directional

DC/DC Controller

FN9357 Rev.0.00

Sep 10, 2018

Page 1 of 34

ISL78424, ISL78434, ISL78444

Contents

1.1

1.2

1.3

1.4

2.1

2.2

2.3

2.4

2.5

2.6

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Block Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Ordering Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Pin Configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Pin Descriptions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Absolute Maximum Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Thermal Information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Recommended Operating Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Electrical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Switching Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Timing Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Typical Performance Curves. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Product Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4.1

Single PWM or Independent HI/LI Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4.2

ISL78424 and ISL78444 PWM Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4.3

ISL78434 HI/LI Lockout Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4.4

Separate Source and Sink Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4.5

Peak Gate Drive Currents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4.6

Shoot-Through Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4.7

Shoot-Through and Dead Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4.8

Adaptive Dead Time Control (ADTC). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4.9

Adaptive Dead Time and Gate Resistors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4.10

Falling Thresholds for ADTC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4.11

Adjustable Dead Time Delay (RDT Pin) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4.12

Integrated Bootstrap Switch. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4.13

Bootstrap Capacitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4.14

EN Pin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4.15

UVLO Protection - VDD and Boot . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5.1

5.2

5.3

5.4

5.5

5.6

Applications Information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Supply Voltage Operating Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Bootstrap Capacitor Design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Gate Drive Limiting Resistors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Adaptive Dead Time Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Adjustable Dead Time Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Power Dissipation Calculation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

PCB Layout Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

Revision History. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

Package Outline Drawing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

FN9357 Rev.0.00

Sep 10, 2018

Page 2 of 34

ISL78444AVEZ-T7A Related Products

	ISL78444AVEZ-T7A	ISL78424AVEZ-T7A	ISL78434AVEZ-T7A	ISL78424AVEZ-T	ISL78424AVEZ	ISL78444AVEZ	ISL78444AVEZ-T	ISL78434AVEZ	ISL78434AVEZ-T
Description	100V Boot, 4A Peak, Half-Bridge Driver with Single PWM Input and Adaptive Dead Time Control	100V Boot, 4A Peak, Half-Bridge Driver with Single PWM Input and Adaptive Dead Time Control	100V Boot, 4A Peak, Half-Bridge Driver with Single PWM Input and Adaptive Dead Time Control	100V Boot, 4A Peak, Half-Bridge Driver with Single PWM Input and Adaptive Dead Time Control	100V Boot, 4A Peak, Half-Bridge Driver with Single PWM Input and Adaptive Dead Time Control	100V Boot, 4A Peak, Half-Bridge Driver with Single PWM Input and Adaptive Dead Time Control	100V Boot, 4A Peak, Half-Bridge Driver with Single PWM Input and Adaptive Dead Time Control	100V Boot, 4A Peak, Half-Bridge Driver with Single PWM Input and Adaptive Dead Time Control	100V Boot, 4A Peak, Half-Bridge Driver with Single PWM Input and Adaptive Dead Time Control
Brand Name	Renesas	Renesas	Renesas	Renesas	Renesas	Renesas	Renesas	Renesas	Renesas
Maker	Renesas Electronics Corporation	Renesas Electronics Corporation	Renesas Electronics Corporation	Renesas Electronics Corporation	Renesas Electronics Corporation	Renesas Electronics Corporation	Renesas Electronics Corporation	Renesas Electronics Corporation	Renesas Electronics Corporation
Parts packaging code	TSSOP-EP	TSSOP-EP	TSSOP-EP	TSSOP-EP	TSSOP-EP	TSSOP-EP	TSSOP-EP	TSSOP-EP	TSSOP-EP
Contacts	14	14	14	14	14	14	14	14	14
Manufacturer packaging code	M14.173B14	M14.173B14	M14.173B14	M14.173B14	M14.173B14	M14.173B14	M14.173B14	M14.173B14	M14.173B14
Reach Compliance Code	compliant	compliant	compliant	compliant	compliant	compliant	compliant	compli	compli
Interface integrated circuit type	HALF BRIDGE BASED MOSFET DRIVER	HALF BRIDGE BASED MOSFET DRIVER	HALF BRIDGE BASED MOSFET DRIVER	HALF BRIDGE BASED MOSFET DRIVER	HALF BRIDGE BASED MOSFET DRIVER	HALF BRIDGE BASED MOSFET DRIVER	HALF BRIDGE BASED MOSFET DRIVER	HALF BRIDGE BASED MOSFET DRIVER	HALF BRIDGE BASED MOSFET DRIVER
Samacsys Description	-	-	Half, Full Bridge and Three Phase Drivers 100V Boot, 4A Peak, Half-Bridge Driver with Single PWM Input and Adaptive Dead Time Control	Half, Full Bridge and Three Phase Drivers 100V Boot, 4A Peak, Half-Bridge Driver with Single PWM Input and Adaptive Dead Time Control	Half, Full Bridge and Three Phase Drivers 100V Boot, 4A Peak, Half-Bridge Driver with Single PWM Input and Adaptive Dead Time Control	Half, Full Bridge and Three Phase Drivers 100V Boot, 4A Peak, Half-Bridge Driver with Single PWM Input and Adaptive Dead Time Control	Half, Full Bridge and Three Phase Drivers 100V Boot, 4A Peak, Half-Bridge Driver with Single PWM Input and Adaptive Dead Time Control	-	-

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