ISL62383HRTZ Intersil, ISL62383HRTZ Datasheet

IC PWR SUPPLY CONTROLLER 28TQFN

ISL62383HRTZ

Manufacturer Part Number
ISL62383HRTZ
Description
IC PWR SUPPLY CONTROLLER 28TQFN
Manufacturer
Intersil
Datasheet

Specifications of ISL62383HRTZ

Applications
Power Supply Controller
Voltage - Supply
5.5 V ~ 25 V
Current - Supply
150µA
Operating Temperature
-10°C ~ 100°C
Mounting Type
Surface Mount
Package / Case
28-TQFN
Rohs Compliant
YES
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Voltage - Input
-

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
ISL62383HRTZ
Manufacturer:
AD
Quantity:
655
High-Efficiency, Quad or Triple-Output
System Power Supply Controller for
Notebook Computers
The ISL62381, ISL62382, ISL62383 family of controllers
generate supply voltages for battery-powered systems. The
ISL62381 and ISL62382 include two pulse-width modulation
(PWM) controllers, adjustable from 0.6V to 5.5V, and two
linear regulators, LDO5 and LDO3, that generate a fixed 5V
and an adjustable output respectively, and each can deliver
up to 100mA. The ISL62383 has the same outputs as the
ISL62381 and ISL62382, but without LDO3 linear regulator.
The channel 2 switching regulator will automatically take
over the LDO5 load when programmed to 5V output. This
provides a large power savings and boosts efficiency. The
ISL62381, ISL62382, ISL62383 family include on-board
power-up sequencing, two power-good (PGOOD) outputs,
digital soft-start, and internal soft-stop output discharge that
prevent negative voltages on shutdown.
The patented R
system with fast response to load transients. Light-load
efficiency is improved with period-stretching discontinuous
conduction mode (DCM) operation. To eliminate noise in
audio frequency applications, an ultrasonic DCM mode is
included, which limits the minimum switching frequency to
approximately 28kHz.
The ISL62381, ISL62382, is available in 32 Ld 5x5 TQFN
package, and ISL62383 is available in 28 Ld 4x4 TQFN
package. ISL62381, ISL62382, ISL62383 family can operate
over the extended temperature range (-10°C to +100°C).
Ordering Information
ISL62381HRTZ* 62381 HRTZ -10 to +100 32 Ld 5x5 TQFN L32.5x5A
ISL62382HRTZ* 62382 HRTZ -10 to +100 32 Ld 5x5 TQFN L32.5x5A
ISL62383HRTZ* 623 83HRTZ -10 to +100 28 Ld 4x4 TQFN L28.4x4
*Add “-T” suffix for tape and reel. Please refer to TB347 for details on reel
specifications.
NOTE: These Intersil Pb-free plastic packaged products employ special
Pb-free material sets; molding compounds/die attach materials and 100%
matte tin plate PLUS ANNEAL - e3 termination finish, which is RoHS
compliant and compatible with both SnPb and Pb-free soldering
operations. Intersil Pb-free products are MSL classified at Pb-free peak
reflow temperatures that meet or exceed the Pb-free requirements of
IPC/JEDEC J STD-020.
NUMBER
(Note)
PART
3
PWM control scheme provides a low jitter
MARKING
PART
®
1
RANGE
TEMP
(°C)
Data Sheet
PACKAGE
(Pb-Free)
1-888-INTERSIL or 1-888-468-3774
DWG. #
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
PKG.
Features
• High Performance R
• Fast Transient Response
• ±1% Output Voltage Accuracy: -10°C to +100°C
• Two Fully Programmable Switch-Mode Power Supplies
• Programmable Switching Frequency
• Integrated MOSFET Drivers and Bootstrap Diode
• Adjustable (+1.2V to +5V) LDO Output
• Fixed +5V LDO Output with Automatic Switchover to
• Internal Soft-Start and Soft-Stop Output Discharge
• Wide Input Voltage Range: +5.5V to +25V
• Full and Ultrasonic Pulse-Skipping Mode
• Power-Good Indicator
• Overvoltage, Undervoltage and Overcurrent Protection
• Fault Identification by PGOOD Pull-Down Resistance
• Thermal Monitor and Protection
• Pb-Free (RoHS Compliant)
Applications
• Notebook and Sub-Notebook Computers
• PDAs and Mobile Communication Devices
• 3-Cell and 4-Cell Li+ Battery-Powered Devices
• General Purpose Switching Buck Regulators
ISL62381, ISL62382, ISL62383
with Independent Operation
SMPS2
August 7, 2008
All other trademarks mentioned are the property of their respective owners.
|
Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright Intersil Americas Inc. 2008. All Rights Reserved
3
Technology
FN6665.4

Related parts for ISL62383HRTZ

ISL62383HRTZ Summary of contents

Page 1

... ISL62381HRTZ* 62381 HRTZ -10 to +100 32 Ld 5x5 TQFN L32.5x5A ISL62382HRTZ* 62382 HRTZ -10 to +100 32 Ld 5x5 TQFN L32.5x5A ISL62383HRTZ* 623 83HRTZ -10 to +100 28 Ld 4x4 TQFN L28.4x4 *Add “-T” suffix for tape and reel. Please refer to TB347 for details on reel specifications ...

Page 2

Pinouts ISL62381, ISL62382 (32 LD TQFN) TOP VIEW PGOOD2 1 FSET2 2 FCCM 3 VCC2 4 GND VCC1 5 LDO3EN 6 FSET1 7 PGOOD1 ISL62381, ISL62382, ...

Page 3

... Thermal Resistance (Typical, Notes 1, 2) θ TQFN Package . . . . . . . . . . . . . . . . . . Junction Temperature Range .-55°C to +150°C Operating Temperature Range . . . . . . . . . . . . . . . .-10°C to +100°C Storage Temperature . . . . . . . . . . . . . . . . . . . . . . . .-65°C to +150°C Pb-free reflow profile . . . . . . . . . . . . . . . . . . . . . . . . . .see link below http://www.intersil.com/pbfree/Pb-FreeReflow.asp , BOOT + 0.3V 1,2 1,2 Recommended Operating Conditions Ambient Temperature Range -10°C to 100°C Supply Voltage (VIN to GND 5.5V to 25V = -10° ...

Page 4

Electrical Specifications These specifications apply for T VIN = 12V; Parameters with MIN and/or MAX limits are 100% tested at +25°C, unless otherwise specified. Temperature limits established by characterization and are not production tested (Continued) PARAMETER VCC VCC Input Bias ...

Page 5

Electrical Specifications These specifications apply for T VIN = 12V; Parameters with MIN and/or MAX limits are 100% tested at +25°C, unless otherwise specified. Temperature limits established by characterization and are not production tested (Continued) PARAMETER CONTROL FCCM Input Voltage ...

Page 6

Typical Application Circuits 4x10µF 0.22µF 4.7µ 330µF 14k 0.022µF 14k 750 45.3k 1200pF 10k 4.7µ 4.7µF 1µF *ISL62381, ISL62382 ONLY FIGURE 1. TYPICAL APPLICATION CIRCUIT WITH INDUCTOR DCR ...

Page 7

Typical Application Circuits 6x10µF 0.22µF 2.2µ 330µFx2 16.2k 0.022µF 590 16.2k 36.5K 1800pF 48.7k 4.7µ 4.7µF 1µF *ISL62381, ISL62382 ONLY FIGURE 3. TYPICAL APPLICATION CIRCUIT WITH INDUCTOR ...

Page 8

Pin Descriptions PIN NUMBER NAME 1 1 PGOOD2 SMPS2 open-drain power-good status output. Connect to LDO5 through a 100k resistor. Output will be high when the SMPS2 output is within the regulation window with no faults ...

Page 9

Pin Descriptions (Continued) PIN NUMBER NAME 28 32 FB2 SMPS2 feedback input used for output voltage programming and regulation. Bottom Bottom GND Analog ground of the IC. Unless otherwise stated, signals are reference to this GND. ...

Page 10

Typical Performance (Continued FB1 PGOOD1 EN1 FIGURE 9. ENABLE CONTROL, EN1 = HIGH 3.3V PHASE1 V O2 PHASE2 FIGURE 11. CCM STEADY-STATE OPERATION 3.3V ...

Page 11

Typical Performance (Continued PHASE1 I O1 FIGURE 15. LOAD INSERTION RESPONSE 3.3V 0.1A/8.1A @ 2.5A/µ EN1 FIGURE 17. DELAYED START 12V EN2 = ...

Page 12

Typical Performance (Continued UGATE1-PHASE1 LGATE1 PGOOD1 FIGURE 21. CROWBAR OVERVOLTAGE PROTECTION 12V 3.3V, NO LOAD ISL62381, ISL62382, ISL62383 FIGURE 22. TRI-STATE OVERVOLTAGE PROTECTION UGATE1-PHASE1 LGATE1 PGOOD1 V = 12V, ...

Page 13

Block Diagram FSET1/2 FB1/2 V 0.6V REF FCCM VOUT1/2 SOFT DISCHARGE EN1 START-UP AND SHUTDOWN LOGIC LDO3EN* 10µA OCSET1/2 ISEN1 16% REF FB1 16% REF 13 ISL62381, ISL62382, ISL62383 VIN 5V LDO 3 R MODULATOR PWM ...

Page 14

... PWM Modulator The ISL62381, ISL62382 and ISL62383 modulator features 3 Intersil’s R technology, a hybrid of fixed frequency PWM control and variable frequency hysteretic control. Intersil’ technology can simultaneously affect the PWM switching frequency and PWM duty cycle in response to input voltage 3 and output load transients ...

Page 15

SOFTSTART 2.75ms PGOOD Delay FIGURE 24. SOFT-START SEQUENCE FOR ONE SMPS The PGOOD pin indicates when the converter is capable of supplying regulated voltage undefined impedance not above the rising POR threshold ...

Page 16

GND and PGND pins. Conversely, when the low-side MOSFET conducts negative inductor current, the phase voltage will be positive with respect to the GND and PGND ...

Page 17

Resistor R and capacitor C OCSET SEN to sense the inductor current. To sense the inductor current correctly, not only in DC operation but also during dynamic operation, the RC network time constant R needs to match the inductor time ...

Page 18

... It is assumed that the reader is familiar with many of the basic skills and techniques referenced in the 3 following section. In addition to this guide, Intersil provides modulator used in the complete reference designs that include schematics, bills of materials, and example board layouts. ...

Page 19

Equation 21 ΔV ------------------------------- = • • the output of the converter has to support a load with high pulsating current, several capacitors will need to be paralleled to reduce ...

Page 20

Where the difference of the DC component of the VALLEY inductor current minus 1/2 of the inductor ripple current - I is the sum of the DC component of the inductor PEAK current plus 1/2 of the ...

Page 21

Connect R to the phase-node side pad of the inductor, and connect C to the output side pad of the inductor. The ISEN SEN resistor should also be connected to the output pad of the ...

Page 22

Package Outline Drawing L28.4x4 28 LEAD THIN QUAD FLAT NO-LEAD PLASTIC PACKAGE Rev 0, 9/ PIN 1 INDEX AREA TOP VIEW (3 . 20) PACKAGE BOUNDARY ( 50) TYPICAL RECOMMENDED LAND PATTERN 22 ...

Page 23

... Accordingly, the reader is cautioned to verify that data sheets are current before placing orders. Information furnished by Intersil is believed to be accurate and reliable. However, no responsibility is assumed by Intersil or its subsidiaries for its use; nor for any infringements of patents or other rights of third parties which may result from its use ...

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