ISL9212IRZ-T Intersil, ISL9212IRZ-T Datasheet

IC SAFETY SYSTEM CHARGER 12-TDFN

ISL9212IRZ-T

Manufacturer Part Number
ISL9212IRZ-T
Description
IC SAFETY SYSTEM CHARGER 12-TDFN
Manufacturer
Intersil
Datasheet

Specifications of ISL9212IRZ-T

Function
Battery Monitor
Battery Type
Lithium-Ion (Li-Ion)
Voltage - Supply
4.3 V ~ 6.5 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
12-TDFN
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
ISL9212IRZ-T

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
ISL9212IRZ-T
Manufacturer:
INTERSIL
Quantity:
2 322
Part Number:
ISL9212IRZ-T
Manufacturer:
INTERSIL
Quantity:
20 000
Charging System Safety Circuit
The ISL9212 is an integrated circuit (IC) optimized to provide
a Li-ion battery redundant safety protection from failures of a
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
P-Channel MOSFET to remove the power from the charging
system. In addition to the above protected parameters, the
IC also monitors its own internal temperature and turns off
the P-Channel MOSFET when the die temperature exceeds
+140°C. Together with the battery charger IC and the
protection module in a battery pack, the charging system
using the ISL9212 has triple-level protection and is two-fault
tolerant.
The IC is designed to turn on the internal PFET slowly to
avoid in-rush current at power-up but will turn off the PFET
quickly when input overvoltage is detected, in order to
remove the power before any damage occurs. The ISL9212
has a logic warning output to indicate the fault and an enable
input to allow the system to remove the input power.
Ordering Information
*Add “-T” suffix for tape and reel.
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.
Typical Application Circuit
PART NUMBER
ISL9212IRZ*
ISL9212EVAL1Z Evaluation Board
INPUT
(Note)
R
C
ILIM
1
212Z
MARKING
PART
VIN
ILIM
GND
ISL9212
-40 to +85 12 Ld 4x3 TDFN
®
RANGE
TEMP.
(°C)
1
WRN
OUT
VB
EN
Data Sheet
(0.75mm)
PACKAGE
(Pb-free)
CHARGER
BATTERY
ISL6292
R
VB
BATTERY
PACK
1-888-INTERSIL or 1-888-468-3774
L12.4x3A
DWG. #
+
PKG.
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
Features
• Fully Integrated Protection Circuit for Three Protection
• High Immunity of False Triggering Under Transients
• High Accuracy Protection Thresholds
• Warning Output to Indicate the Occurrence of Faults
• Enable Input
• Thermal Enhanced TDFN Package
• Pb-Free (RoHS Compliant)
Applications
• Cell Phones
• Digital Still Cameras
• PDAs and Smart Phones
• Portable Instruments
• Desktop Chargers
Related Literature
• Technical Brief TB363 “Guidelines for Handling and
• Technical Brief TB379 “Thermal Characterization of
• Technical Brief TB389 “PCB Land Pattern Design and
Pinout
NOTE: EPAD must be electrically connected to the GND pin.
Variables
- User Programmable Overcurrent Protection Threshold
- Input Overvoltage Protection in Less Than 1µs
- Battery Overvoltage Protection
Processing Moisture Sensitive Surface Mount Devices
(SMDs)”
Packaged Semiconductor Devices”
Surface Mount Guidelines for QFN Packages”
All other trademarks mentioned are the property of their respective owners.
June 30, 2008
|
Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright © Intersil Americas Inc. 2006, 2008. All Rights Reserved.
WRN
GND
VIN
VIN
NC
NC
1
2
3
4
5
6
(12 LD 4x3 TDFN)
TOP VIEW
ISL9212
EPAD
12
11
10
9
8
7
NC
OUT
OUT
ILIM
VB
EN
ISL9212
FN9280.2

Related parts for ISL9212IRZ-T

ISL9212IRZ-T Summary of contents

Page 1

... TEMP. PART NUMBER PART RANGE (Note) MARKING (°C) ISL9212IRZ* - 4x3 TDFN 212Z (0.75mm) ISL9212EVAL1Z Evaluation Board *Add “-T” suffix for tape and reel. NOTE: These Intersil Pb-free plastic packaged products employ special Pb-free material sets; molding compounds/die attach materials and ...

Page 2

... Thermal Resistance (Notes 2, 3) 4x3 TDFN Package . . . . . . . . . . . . . . . Maximum Junction Temperature (Plastic Package +150°C Maximum Storage Temperature Range . . . . . . . . . .-65°C to +150°C Pb-free reflow profile . . . . . . . . . . . . . . . . . . . . . . . . . .see link below http://www.intersil.com/pbfree/Pb-FreeReflow.asp = 5V and T = +25°C, maximum and minimum values are guaranteed over the IN A SYMBOL ...

Page 3

Pin Descriptions VIN (Pins 1, 2) The input power source. The VIN can withstand 30V input. GND (Pin 3) System ground reference. WRN (Pin 4) WRN is an open-drain logic output that turns LOW when any protection event occurs. NC ...

Page 4

Typical Operating Performance VIN (1V/DIV) VIN (1V/div) OUT (1V/DIV) OUT (1V/div) Load Current LOAD CURRENT (200mA/div) FIGURE 2. CAPTURED WAVEFORMS FOR POWER-UP. THE OUTPUT IS LOADED WITH A 10Ω RESISTOR Time: 200ms/div TIME: 200ms/DIV OUT (2V/DIV) OUT (2V/div) WRN (5V/DIV) ...

Page 5

Typical Operating Performance Time: 200ms/div TIME: 200ms/DIV OUT (1V/div) OUT (1V/DIV) FIGURE 8. POWER-UP WAVEFORMS WHEN OUTPUT IS SHORT-CIRCUITED 1200 1000 800 600 400 200 INPUT VOLTAGE (V) FIGURE 10. INPUT BIAS CURRENT vs ...

Page 6

Typical Operating Performance 1050 CURRENT 1040 LIMIT = 1A 1030 1020 1010 5V 1000 990 980 3V 4.3V 970 960 -50 - TEMPERATURE (°C) FIGURE 14. OVERCURRENT PROTECTION THRESHOLDS vs TEMPERATURE AT VARIOUS INPUT VOLTAGES 515 510 4.3V ...

Page 7

Typical Operating Performance 2.0 1.8 1.6 1.4 1.2 1.0 0.8 0.6 0.4 0.2 0 -50 - TEMPERATURE (°C) FIGURE 20. EN INPUT THRESHOLD vs TEMPERATURE FIGURE 22. ON-RESISTANCE vs TEMPERATURE AT DIFFERENT INPUT VOLTAGES AND LOAD CURRENTS Theory ...

Page 8

CP1 outputs a logic signal to turn off the power PFET within 1µs (see Figure 3) to prevent the high input voltage from damaging the electronics in the handheld system. The hysteresis for the input OVP ...

Page 9

R Selection VB The R prevents a large current from the VB pin to the VB battery terminal, in case the ISL9212 fails. The recommended value should be between 200kΩ to 1MΩ. With 200kΩ resistance, the worst case current flowing ...

Page 10

... Intersil will have the FMEA document for the solution using the ISL9212 and the ISL6292C chip set but the layout FMEA should be added as part of the analysis ...

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 ...

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