ISL6146AFRZ-T7A datasheet, PDF

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ISL6146AFRZ-T7A: DescriptionBUF OR INV BASED MOSFET DRIVER, PDSO8; Categorysemiconductor Analog mixed-signal IC; File Size2MB，28 Pages; ManufacturerIntersil ( Renesas ); Websitehttp://www.intersil.com/cda/home/

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ISL6146AFRZ-T7A Overview

BUF OR INV BASED MOSFET DRIVER, PDSO8

ISL6146AFRZ-T7A Parametric

Parameter Name	Attribute value
Number of functions	1
Number of terminals	8
Minimum operating temperature	-40 Cel
Maximum operating temperature	125 Cel
Processing package description	3 X 3 MM, ROHS COMPLIANT, PLASTIC, DFN-8
state	Active
Interface Type	BUFFER OR INVERTER BASED MOSFET DRIVER
high end driver	NO
jesd_30_code	S-PDSO-N8
jesd_609_code	e3
Packaging Materials	PLASTIC/EPOXY
ckage_code	HVSON
packaging shape	SQUARE
Package Size	SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE
seated_height_max	1 mm
Rated supply voltage	12 V
Minimum supply voltage	3 V
Maximum supply voltage	20 V
surface mount	YES
Temperature level	AUTOMOTIVE
terminal coating	MATTE TIN
Terminal form	NO LEAD
Terminal spacing	0.6500 mm
Terminal location	DUAL
length	3 mm
width	3 mm

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DATASHEET

ISL6146

Low Voltage OR-ing FET Controller

The

ISL6146

represents a family of OR-ing MOSFET controllers

capable of OR-ing voltages from 1V to 18V. Together with suitably

sized N-channel power MOSFETs, the ISL6146 increases power

distribution efficiency when replacing a power OR-ing diode in high

current applications. It provides gate drive voltage for the

MOSFET(s) with a fully integrated charge pump.

The ISL6146 allows users to adjust with external resistor(s) the

OUT

- V

trip point, which adjusts the control sensitivity to system

power supply noise. An open drain FAULT pin will indicate if a

conditional or FET fault has occurred.

The ISL6146A and ISL6146B are optimized for very low voltage

operation, down to 1V with an additional independent bias of 3V

or greater.

The ISL6146C provides a voltage compliant mode of operation

down to 3V with programmable undervoltage lock out and

overvoltage protection threshold levels.

The ISL6146D and ISL6146E are like the ISL6146A and ISL6146B

respectively, but do not have conduction state reporting via the

fault output

TABLE 1. KEY DIFFERENCES BETWEEN PARTS IN FAMILY

PART

NUMBER

ISL6146A

ISL6146B

ISL6146C

ISL6146D

ISL6146E

KEY DIFFERENCES

Separate BIAS and V

with Active High Enable

Separate BIAS and V

with Active Low Enable

with OVP/UVLO Inputs

ISL6146A without Conduction Monitor and Reporting

ISL6146B without Conduction Monitor and Reporting

FN7667

Rev 5.00

Aug 17, 2015

Features

• OR-ing down to 1V and up to 20V with ISL6146A, ISL6146B,

ISL6146D and ISL6146E

• Programmable voltage compliant operation with ISL6146C

• V

hot swap transient protection rating to +24V

• High speed comparator provides fast <0.3µs turn-off in

response to shorts on sourcing supply

• Fastest reverse current fault isolation with 6A turn-off

current

• Very smooth switching transition

• Internal charge pump to drive N-channel MOSFET

• User programmable V

- V

OUT

Vth for noise immunity

• Open-drain FAULT output with delay

- Short between any two of the OR-ing FET terminals

- GATE voltage and excessive FET V

- Power-good indicator (ISL6146C)

• MSOP and DFN package options

Applications

• N+1 industrial and telecom power distribution systems

• Uninterruptable power supplies

• Low voltage processor and memory

• Storage and datacom systems

VIN GATE VOUT

BIAS

ADJ

ISL6146B

FLT

GND

VIN GATE VOUT

VOUT

BIAS

ADJ

ISL6146B

FLT

GND

GATE FAST OFF, ~200ns FALL TIME

~70ns FROM 20V TO 12.6V ACROSS 57nF

GATE OUTPUT SINKING ~ 6A

VOLTAGE

DC/DC

(3V - 20V)

VOLTAGE

DC/DC

(3V - 20V)

FIGURE 1. TYPICAL APPLICATION

FIGURE 2. ISL6146 GATE HIGH CURRENT PULL-DOWN

FN7667 Rev 5.00

Aug 17, 2015

Page 1 of 28

ISL6146

Table of Contents

Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Pin Configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Pin Descriptions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Ordering Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Absolute Maximum Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Thermal Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Recommended Operating Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Electrical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Typical Performance Curves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Functional Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Applications Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Power-up Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Typical Applications Circuits. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

ISL6146 Evaluation Platforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Description and Use of the Evaluation Boards. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Revision History. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

About Intersil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Package Outline Drawing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

L8.3x3J . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

M8.118 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

FN7667 Rev 5.00

Aug 17, 2015

Page 2 of 28

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