ISL81601FRZ-T7A datasheet, PDF

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ISL81601FRZ-T7A: DescriptionSwitch Controller 60V 4-Switch Synchronous Buck-Boost PWM Controller, 32LD QFN; CategoryPower/power management The power supply circuit; File Size2MB，54 Pages; ManufacturerRenesas Electronics Corporation; Websitehttps://www.renesas.com/

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Switch Controller 60V 4-Switch Synchronous Buck-Boost PWM Controller, 32LD QFN

ISL81601FRZ-T7A Parametric

Parameter Name	Attribute value
Brand Name	Renesas
Maker	Renesas Electronics Corporation
Parts packaging code	QFN
package instruction	HVQCCN,
Contacts	32
Manufacturer packaging code	L32.5X5B32
Reach Compliance Code	compliant
Samacsys Description	Buck-Boost Controllers 60V Bidirectional 4-Switch Synchronous Buck-Boost Controller
Analog Integrated Circuits - Other Types	SWITCHING CONTROLLER
control mode	CURRENT-MODE
Control Technology	PULSE WIDTH MODULATION
Maximum input voltage	60 V
Minimum input voltage	4.5 V
Nominal input voltage	8 V
JESD-30 code	S-PQCC-N32
length	5 mm
Number of functions	1
Number of terminals	32
Maximum operating temperature	125 °C
Minimum operating temperature	-40 °C
Package body material	PLASTIC/EPOXY
encapsulated code	HVQCCN
Package shape	SQUARE
Package form	CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE
Maximum seat height	1 mm
surface mount	YES
Switch configuration	BUCK-BOOST
Maximum switching frequency	650 kHz
Temperature level	AUTOMOTIVE
Terminal form	NO LEAD
Terminal pitch	0.5 mm
Terminal location	QUAD
width	5 mm
Base Number Matches	1

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DATASHEET

ISL81601

60V Bidirectional 4-Switch Synchronous Buck-Boost Controller

FN9299

Rev.2.00

Sep 19, 2018

The

ISL81601

is a true bidirectional 4-switch

synchronous buck-boost controller with peak and

average current sensing and monitoring at both ends. Its

wide input and output voltage ranges make it suitable for

industrial, telecommunication, and after-market

automotive applications.

The ISL81601 uses the proprietary buck-boost control

algorithm with valley current modulation for Boost mode

and peak current modulation for Buck mode control.

The ISL81601 has four independent control loops for input

and output voltages and currents. Inherent peak current

sensing at both ends and cycle-by-cycle current limit of

this family of products ensures high operational reliability

by providing instant current limit in fast transient

conditions at either ends and in both directions. It also has

two current monitoring pins at both input and output to

facilitate Constant Current (CC) limit and other system

management functions. CC operation down to low

voltages avoids any runaway condition at over load or

short-circuit conditions. In addition to multilayer

overcurrent protection, it also provides full protection

features such as OVP, UVP, OTP, and average and peak

current limit on both input and output to ensure high

reliability in both unidirectional and bidirectional

operation. The IC is packaged in a space conscious 32 Ld

5mm x5mm QFN package or easy to assemble

4.4mmx9.7mm 38 Ld HTSSOP package. Both packages

use an EPAD to improve thermal dissipation and noise

immunity. Low pin count, fewer external components, and

default internal values make the ISL81601 an ideal

solution for quick to market simple power supply designs.

The unique DE/Burst mode at light-load dramatically

lowers standby power consumption with consistent output

ripple over different load levels.

Features

• Single inductor 4-switch buck-boost controller

• On-the-fly bidirectional operation with independent

control of voltage and current on both ends

• Proprietary algorithm for smoothest mode transition

• MOSFET drivers with adaptive shoot-through

protection

• Wide input voltage range: 4.5V to 60V

• Wide output voltage range: 0.8V to 60V

• Supports pre-biased output with SR soft-start

• Programmable frequency: 100kHz to 600kHz

• Supports parallel operation current sharing with

cascade phase interleaving

• External sync with clock out or frequency dithering

• External bias for higher efficiency supports 8V - 36V

input

• Output and input current monitor

• Selectable PWM mode operation between

PWM/DE/Burst modes

• Accurate EN/UVLO and PGOOD indicator

• Low shut down current: 2.7µA

• Complete protection: OCP, SCP, OVP, OTP, and UVP

• Dual-level OCP protection with average current

and pulse-by-pulse peak current limit

• Selectable OCP response with either hiccup or

constant current mode

• Negative pulse-by-pulse peak current limit

Related Literature

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

•

ISL81601

product page

VIN

s_in

PH1

LG1

PH2

LG2

s_out

VOUT

Applications

• Battery backup

• UPS/storage systems

• Battery powered industrial applications

• Renewable energy

• Aftermarket automotive

• Redundant power supplies

• Robot and drones

• Medical equipment

• Building and industrial automation

• Security surveillance

UG1

UG2

Figure 1. Buck-Boost Power Train Topology

FN9299 Rev.2.00

Sep 19, 2018

Page 1 of 53

ISL81601

Contents

1.1

1.2

1.3

1.4

1.5

2.1

2.2

2.3

2.4

4.1

4.2

4.3

4.4

4.5

4.6

4.7

4.8

4.9

4.10

4.11

4.12

4.13

4.14

5.1

5.2

5.3

5.4

5.5

6.1

6.2

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Typical Application Schematics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Ordering Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Pin Configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Pin Descriptions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

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

Thermal Information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

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

Electrical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Typical Performance Curves. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

General Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Internal 8V Linear Regulator (VDD), External Bias Supply (EXTBIAS),

and 5V Linear Regulator (VCC5V) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Enable (EN/UVLO) and Soft-Start Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Tracking Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Control Loops . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Buck-Boost Conversion Topology and Control Algorithm . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Light-Load Efficiency Enhancement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Prebiased Power-Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Frequency Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Phase Lock Loop (PLL) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Frequency Synchronization and Dithering. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Parallel Operation Current Sharing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Gate Drivers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Power-Good Indicator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Protection Circuits. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

Input Undervoltage Lockout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

VCC5V Power-On Reset (POR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Overcurrent Protection (OCP) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Overvoltage Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Over-Temperature Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Layout Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

Layout Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

General EPAD Design Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

FN9299 Rev.2.00

Sep 19, 2018

Page 3 of 53

ISL81601FRZ-T7A Related Products

	ISL81601FRZ-T7A	ISL81601FRZ-T	ISL81601FRZ
Description	Switch Controller 60V 4-Switch Synchronous Buck-Boost PWM Controller, 32LD QFN	Switch Controller 60V 4-Switch Synchronous Buck-Boost PWM Controller, 32LD QFN	Switch Controller 60V 4-Switch Synchronous Buck-Boost PWM Controller, 32LD QF
Brand Name	Renesas	Renesas	Renesas
Maker	Renesas Electronics Corporation	Renesas Electronics Corporation	Renesas Electronics Corporation
Parts packaging code	QFN	QFN	QFN
package instruction	HVQCCN,	HVQCCN,	QFN-32
Contacts	32	32	32
Manufacturer packaging code	L32.5X5B32	L32.5X5B32	L32.5X5B32
Reach Compliance Code	compliant	compliant	compliant
Samacsys Description	Buck-Boost Controllers 60V Bidirectional 4-Switch Synchronous Buck-Boost Controller	Buck-Boost Controllers 60V Bidirectional 4-Switch Synchronous Buck-Boost Controller	Buck-Boost Controllers 60V Bidirectional 4-Switch Synchronous Buck-Boost Controller
Analog Integrated Circuits - Other Types	SWITCHING CONTROLLER	SWITCHING CONTROLLER	SWITCHING CONTROLLER
control mode	CURRENT-MODE	CURRENT-MODE	CURRENT-MODE
Control Technology	PULSE WIDTH MODULATION	PULSE WIDTH MODULATION	PULSE WIDTH MODULATION
Maximum input voltage	60 V	60 V	60 V
Minimum input voltage	4.5 V	4.5 V	4.5 V
Nominal input voltage	8 V	8 V	8 V
JESD-30 code	S-PQCC-N32	S-PQCC-N32	S-PQCC-N32
length	5 mm	5 mm	5 mm
Number of functions	1	1	1
Number of terminals	32	32	32
Maximum operating temperature	125 °C	125 °C	125 °C
Minimum operating temperature	-40 °C	-40 °C	-40 °C
Package body material	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY
encapsulated code	HVQCCN	HVQCCN	HVQCCN
Package shape	SQUARE	SQUARE	SQUARE
Package form	CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE	CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE	CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE
Maximum seat height	1 mm	1 mm	1 mm
surface mount	YES	YES	YES
Switch configuration	BUCK-BOOST	BUCK-BOOST	BUCK-BOOST
Maximum switching frequency	650 kHz	650 kHz	650 kHz
Temperature level	AUTOMOTIVE	AUTOMOTIVE	AUTOMOTIVE
Terminal form	NO LEAD	NO LEAD	NO LEAD
Terminal pitch	0.5 mm	0.5 mm	0.5 mm
Terminal location	QUAD	QUAD	QUAD
width	5 mm	5 mm	5 mm
Base Number Matches	1	1	1

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