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ISL9212A の電気的特性と機能

ISL9212AのメーカーはIntersil Corporationです、この部品の機能は「Charging System Safety Circuit」です。


製品の詳細 ( Datasheet PDF )

部品番号 ISL9212A
部品説明 Charging System Safety Circuit
メーカ Intersil Corporation
ロゴ Intersil Corporation ロゴ 




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ISL9212A Datasheet, ISL9212A PDF,ピン配置, 機能
®
Data Sheet
November 14, 2006
ISL9212A
FN6384.0
Charging System Safety Circuit
The ISL9212A 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 ISL9212A has triple-level
protection and is two-fault tolerant.
The IC is designed to turn on the internal PFET slowly to
avoid inrush 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 ISL9212A has a
logic warning output to indicate the fault and an enable input
to allow the system to remove the input power.
Ordering Information
PART
NUMBER
TEMP.
PART RANGE
MARKING (°C)
PACKAGE
PKG.
DWG. #
ISL9212AIRZ* 2AZ
(Note)
-40 to +85 12 Ld 4x3 TDFN L12.4x3A
(Pb-free)
ISL9200EVAL1 ISL9200 Evaluation Board
*Add “-T” suffix for tape and reel.
NOTE: Intersil Pb-free plus anneal products employ special Pb-free
material sets; molding compounds/die attach materials and 100%
matte tin plate termination finish, which are 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
INPUT
C1
VIN
OUT
ISL6292
BATTERY
CHARGER
RILIM
ISL9212A
ILIM
VB
EN
GND
WRN
RVB
+
BATTERY
PACK
Features
• Fully Integrated Protection Circuit for Three Protection
Variables
- User Programmable Overcurrent Protection Threshold
- Input Overvoltage Protection in Less Than 1µs
- Battery Overvoltage Protection
• High Immunity of False Triggering Under Transients
• High Accuracy Protection Thresholds
• Warning Output to Indicate the Occurrence of Faults
• Enable Input
• Thermal Enhanced DFN Package
• Pb-Free Plus Anneal Available (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
Processing Moisture Sensitive Surface Mount Devices
(SMDs)”
• Technical Brief TB379 “Thermal Characterization of
Packaged Semiconductor Devices”
• Technical Brief TB389 “PCB Land Pattern Design and
Surface Mount Guidelines for QFN Packages”
Pinout
ISL9212A
(12 LD 4x3 DFN)
TOP VIEW
VIN 1
VIN 2
GND 3
WRN 4
NC 5
NC 6
EPAD
12 NC
11 OUT
10 OUT
9 ILIM
8 VB
7 EN
NOTE: EPAD must be electrically connected to the GND pin.
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) is a registered trademark of Intersil Americas Inc.
Copyright © Intersil Americas Inc. 2006. All Rights Reserved.
All other trademarks mentioned are the property of their respective owners.

1 Page





ISL9212A pdf, ピン配列
ISL9212A
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 (Pins 5, 6, 12)
No connection and must be left floating.
EN (Pin 7)
Enable input. Pull this pin to low or leave it floating to enable
the IC and force it to high to disable the IC.
Typical Applications
VB (Pin 8)
Battery voltage monitoring input. This pin is connected to the
battery pack positive terminal via an isolation resistor.
ILIM (Pin 9)
Overcurrent protection threshold setting pin. Connect a
resistor between this pin and GND to set the OCP threshold.
OUT (Pins 10, 11)
Output pin.
EPAD
The exposed pad at the bottom of the DFN package for
enhancing thermal performance. Must be electrically
connected to the GND pin.
INPUT
C1
RILIM
VIN
OUT
ISL6292
BATTERY
CHARGER
ISL9212A
ILIM
VB
EN
GND
WRN
RVB
+
BATTERY
PACK
PART
RILIM
RVB
C1
DESCRIPTION
25kΩ
200kΩ to 1MΩ
1µF/16V X5R ceramic capacitor
Block Diagram
INPUT
VIN
R1
POR
PRE-REG
REF
FET
DRIVER
Q1
Q2
CP2
Q3
EA
OUT
ILIM
ISL6292
BATTERY
CHARGER
RILIM
CP1
R 1.2V
2
Q4
WRN
GND
LOGIC
CP3
Q5
R5
0.8V
VB
R3
R4
BUF
EN
FIGURE 1. BLOCK DIAGRAM
R VB
3
+
FN6384.0
November 14, 2006


3Pages


ISL9212A 電子部品, 半導体
ISL9212A
Typical Operating Performance The test conditions for the Typical Operating Performance are: VIN = 5V, TA = +25°C,
RILIM = 25.5kΩ, RVB = 200kΩ, Unless Otherwise Noted. (Continued)
1040
1030
1020
1010
1000 4.30V
990
980
3.00V
5.00V
8.15V
970
-50
-20 10 40 70 100 130
TEMPERATURE (°C)
FIGURE 14. OVERCURRENT PROTECTION THRESHOLDS vs
TEMPERATURE AT VARIOUS INPUT VOLTAGES
200
195
190
185
180
175
170
165
160
155
150
-50 -20 10 40 70 100 130
TEMPERATURE (°C)
FIGURE 15. OVERCURRENT PROTECTION BLANKING TIME
vs TEMPERATURE
525
520
515 5.00V
510 4.30V
505
500
495
-50
8.15V
3.00V
-20 10 40 70 100 130
TEMPERATURE (°C)
FIGURE 16. OVERCURRENT PROTECTION THRESHOLDS vs
TEMPERATURE AT VARIOUS INPUT VOLTAGES
200
195
190
185
180
175
170
165
160
155
150
-50 -20 10 40 70 100 130
TEMPERATURE (°C)
FIGURE 18. BATTERY OVP BLANKING TIME
6
4.42
4.41
4.4
4.39
4.38
RISING THRESHOLDS FOR
4.50V, 5.00V AND 8.15V INPUT
4.37
4.36
4.35
4.34
FALLING THRESHOLDS FOR
4.50V, 5.00V AND 8.15V INPUT
4.33
4.32
-50 -20 10 40 70 100 130
TEMPERATURE (°C)
FIGURE 17. BATTERY VOLTAGE OVP THRESHOLDS vs
TEMPERATURE AT VARIOUS INPUT VOLTAGES
3.0
TESTED AT 5V
2.5
2.0
1.5
1.0
0.5
0
-50 -20 10 40 70 100 130
TEMPERATURE (°C)
FIGURE 19. VB PIN LEAKAGE CURRENT vs TEMPERATURE
FN6384.0
November 14, 2006

6 Page



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共有リンク

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部品番号部品説明メーカ
ISL9212

Charging System Safety Circuit

Intersil Corporation
Intersil Corporation
ISL9212A

Charging System Safety Circuit

Intersil Corporation
Intersil Corporation
ISL9212B

Charging System Safety Circuit

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