ISL9211AIRU48XZ-T Intersil, ISL9211AIRU48XZ-T Datasheet

no-image

ISL9211AIRU48XZ-T

Manufacturer Part Number
ISL9211AIRU48XZ-T
Description
IC SAFETY CIRCUIT CHARGE 8UTDFN
Manufacturer
Intersil
Datasheet

Specifications of ISL9211AIRU48XZ-T

Function
Battery Monitor
Battery Chemistry
Lithium-Ion (Li-Ion)
Voltage - Supply
4.3 V ~ 24 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
8-UFDFN Exposed Pad
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Charging System Safety Circuit
ISL9211A
The ISL9211A is an integrated circuit (IC) optimized to
provide a redundant safety protection to a Li-ion battery
charging system. The IC monitors the input voltage, the
battery voltage, and the charge current. When any of the
three parameters exceeds its limit, the IC turns off an
internal N-channel MOSFET to remove the power from
the charging system to the battery. In addition to the
above protected parameters, the IC also monitors its
own internal temperature and turns off the N-channel
MOSFET when the temperature exceeds +150°C.
Together with the battery charger IC and the protection
module in a battery pack, the charging system using the
ISL9211A has triple-level protection and is two-fault
tolerant.
The IC is designed to turn on the internal NFET slowly to
avoid inrush current at power up but will turn off the
NFET quickly when the input is overvoltage in order to
remove the power before any damage occurs. The
ISL9211A has a logic flag output to indicate a fault
condition. The enable input allows the system to cut off
the input power if needed.
Related Literature*
• Technical Brief
• Technical Brief
• Technical Brief
Typical Application Circuit
August 25, 2010
FN6702.1
Processing Moisture Sensitive Surface Mount Devices
(SMDs)”
Packaged Semiconductor Devices”
Surface Mount Guidelines for QFN Packages”
TB363
TB379
TB389
“Guidelines for Handling and
“Thermal Characterization of
“PCB Land Pattern Design and
1
INPUT
(see page 11)
R
1-888-INTERSIL or 1-888-468-3774
C
ILIM
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
ILIM
GND
VIN
ISL9211A
FAULT
OUT
Features
• 24V Max Input Voltage
• Supports Up To 2.0A Input Current
• Fully Integrated Protection Circuit for Three
• High Accuracy Protection Thresholds
• User Programmable Overcurrent Protection
• Responds To Input Overvoltage in Less Than 1µs
• High Immunity of False Triggering Under Transients
• Fault Indication for Various Fault Occurrence
• Easy to Use
• Pb-Free (RoHS Compliant)
Applications*
• Cell Phones
• Digital Still Cameras
• PDAs and Smart Phones
• Portable Instruments
• Desktop Chargers
VB
EN
Protected Variables
Threshold
All other trademarks mentioned are the property of their respective owners.
C
|
2
Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright © Intersil Americas Inc. 2009, 2010. All Rights Reserved.
R
VB
DISA
ENA
CHARGER
BATTERY
ISL6292
BATT
PACK
(see page 11)

Related parts for ISL9211AIRU48XZ-T

ISL9211AIRU48XZ-T Summary of contents

Page 1

... CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures. | 1-888-INTERSIL or 1-888-468-3774 Intersil (and design registered trademark of Intersil Americas Inc. Copyright © Intersil Americas Inc. 2009, 2010. All Rights Reserved. All other trademarks mentioned are the property of their respective owners. ...

Page 2

Block Diagram ...

Page 3

... OCP threshold. OUT 8 Output pin Exposed pad. Connect to system ground Ordering Information PART NUMBER (Notes ISL9211AIRU48XZ-T 4XE ISL9211AIRU58XZ-T 5XX ISL9211AIRU68XZ-T 6XX NOTES: 1. Please refer to TB347 for details on reel specifications. 2. These Intersil Pb-free plastic packaged products employ special Pb-free material sets; molding compounds/die attach materials and NiPdAu plate - e4 termination finish, which is RoHS compliant and compatible with both SnPb and Pb-free soldering operations ...

Page 4

... Battery OVP Blanking Time VB Pin Leakage Current 4 ISL9211A Thermal Information Thermal Resistance (Typical 2x2 µTDFN (Notes Maximum Junction Temperature (Plastic Package +150 Maximum Storage Temperature Range . . . .-65 Pb-Free Reflow Profile . . . . . . . . . . . . . . . . . .see link below http://www.intersil.com/pbfree/Pb-FreeReflow.asp SYMBOL TEST CONDITIONS V Rising POR Falling 24.9k ...

Page 5

Electrical Specifications (Continued) PARAMETER Over-Temperature Protection Rising Threshold Over-Temperature Protection Falling Threshold LOGIC EN Input Logic HIGH EN Input Logic LOW EN Internal Pull-down Resistor FAULT Output Logic Low FAULT Output Logic High Leakage Current POWER MOSFET On-Resistance (Note 7) ...

Page 6

Typical Operating Performance +25° 24.9kΩ ILIM VIN(2V/div OUT (2V/DIV) OUT(2V/div) LOAD CURRENT (200mA/DIV) Load Current(200mA/div) TIME - 4ms/DIV FIGURE 1. CAPTURED WAVEFORMS FOR POWER-UP. THE OUTPUT IS LOADED ...

Page 7

Typical Operating Performance +25° 24.9kΩ ILIM V (5V/DIV) VIN(5V/div) IN LOAD CURRENT (2A/DIV) Load current (2A/div) FAULT (2V/DIV) Fault(2V/div) TIME - 40µs/DIV FIGURE 7. POWER-UP WAVEFORMS WHEN OUTPUT IS SHORT-CIRCUITED ...

Page 8

Typical Operating Performance +25° 24.9kΩ ILIM FIGURE 13. ON-RESISTANCE vs TEMPERATURE AT DIFFERENT INPUT VOLTAGES Theory of Operation The ISL9211A is an integrated circuit (IC) optimized to provide a redundant ...

Page 9

FET is forced to match the value programmed by I pin. The OCP threshold can be set LIM with the resistor R as shown in Table 2. LIM TABLE 2. R OCP R LIM (kΩ) (mA) (kΩ) ...

Page 10

Capacitor Selection The input capacitor (C in the “Typical Application Circuit” page 1) is for decoupling. Higher value reduces the voltage drop or the over-shoot during transients. Two scenarios can cause the input voltage over-shoot. The first one ...

Page 11

... 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. No license is granted by implication or otherwise under any patent or patent rights of Intersil or its subsidiaries ...

Page 12

Package Outline Drawing L8.2x2B 8 LEAD MICRO THIN DUAL FLAT NO-LEAD PLASTIC PACKAGE (µTDFN) WITH E-PAD Rev 0, 04/08 2.00 6 PIN 1 INDEX AREA (4X) 0.15 TOP VIEW PACKAGE OUTLINE ( 6x0. 8x0.25 ) 0.90 2.00 TYPICAL ...

Related keywords