Safety Circuit. ISL9212 Datasheet

ISL9212 Circuit. Datasheet pdf. Equivalent

ISL9212 Datasheet
Recommendation ISL9212 Datasheet
Part ISL9212
Description Charging System Safety Circuit
Feature ISL9212; ISL9212 Charging System Safety Circuit NOT RECOMMENDED FOR NEW DESIGNS NO RECOMMENDED REPLACEMENT c.
Manufacture Renesas
Datasheet
Download ISL9212 Datasheet




Renesas ISL9212
ISL9212
Charging System Safety Circuit
NOT RECOMMENDED FOR NEW DESIGNS
NO RECOMMENDED REPLACEMENT
contact our Technical Support Center at
1-888-INTERSIL or www.intersil.com/tsc
DATASHEET
FN9280
Rev 2.00
June 30, 2008
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
TEMP.
PART NUMBER PART RANGE
(Note)
MARKING (°C)
PACKAGE
(Pb-free)
PKG.
DWG. #
ISL9212IRZ* 212Z
-40 to +85 12 Ld 4x3 TDFN L12.4x3A
(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
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
INPUT
C1
VIN
OUT
ISL6292
BATTERY
CHARGER
RILIM
ISL9212
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 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
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
ISL9212
(12 LD 4x3 TDFN)
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.
FN9280 Rev 2.00
June 30, 2008
Page 1 of 11



Renesas ISL9212
ISL9212
Absolute Maximum Ratings (Reference to GND)
Supply Voltage (VIN) . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to 30V
Output and VB Pin (OUT, VB) (Note 1) . . . . . . . . . . . . . . -0.3V to 7V
Other Pins (ILIM, WRN, EN) . . . . . . . . . . . . . . . . . . . . -0.3V to 5.5V
ESD Rating
Human Body Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3000V
Machine Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .300V
Recommended Operating Conditions
Ambient Temperature Range . . . . . . . . . . . . . . . . . . .-40°C to +85°C
Supply Voltage (VIN) . . . . . . . . . . . . . . . . . . . . . . . . . . 4.3V to 6.5V
Operating Current Range. . . . . . . . . . . . . . . . . . . . . . . . . 0A to 1.5A
Thermal Information
Thermal Resistance (Notes 2, 3)
JA (°C/W) JC (°C/W)
4x3 TDFN Package . . . . . . . . . . . . . . .
41
3.5
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
CAUTION: Do not operate at or near the maximum ratings listed for extended periods of time. Exposure to such conditions may adversely impact product reliability and
result in failures not covered by warranty.
NOTES:
1. The maximum voltage rating for the VB pin under continuous operating conditions is 5.5V. All other pins are allowed to operate continuously at
the absolute maximum ratings.
2. JA is measured in free air with the component mounted on a high effective thermal conductivity test board with “direct attach” features. See
Tech Brief TB379.
3. JC, “case temperature” location is at the center of the exposed metal pad on the package underside. See Tech Brief TB379.
Electrical Specifications Typical values are tested at VIN = 5V and TA = +25°C, maximum and minimum values are guaranteed over the
recommended operating conditions, unless otherwise noted.
PARAMETER
SYMBOL
TEST CONDITIONS
MIN TYP MAX UNITS
POWER-ON RESET
Rising VIN Threshold
POR Hysteresis
VPOR
2.4 2.58 2.7
- 100 -
V
mV
VIN Bias Current
VIN Bias Current
IVIN When enabled
When disabled
0.75 0.9 1.05 mA
30 60 100 µA
PROTECTIONS
Input Overvoltage Protection (OVP)
Input OVP Hysteresis
VOVP
6.65 6.8
7.0
V
- 60 100 mV
Input OVP Falling Threshold
6.55 - - V
Input OVP Propagation Delay
- - 1 µs
Overcurrent Protection
Overcurrent Protection Blanking Time
Battery Overvoltage Protection Threshold
Battery OVP Threshold Hysteresis
IOCP
BtOCP
VBOVP
VVB = 3V, RILIM = 25k
0.93
-
4.325
-
1.0
170
4.4
75
1.07
-
4.475
-
A
µs
V
mV
Battery OVP Falling Threshold
4.225
-
-
V
Battery OVP Blanking Time
VB Pin Leakage Current
Over-Temperature Protection Rising Threshold
BtBOVP
VVB = 4.4V
- 180 -
µs
- - 20 nA
- 140 -
°C
Over-Temperature Protection Falling Threshold
- 90 - °C
LOGIC
EN Input Logic HIGH
1.5 - - V
EN Input Logic LOW
- - 0.4 V
EN Internal Pull-Down Resistor
100 200 400
k
WRN Output Logic Low
Sink 5mA current
- 0.35 0.8 V
WRN Output Logic High Leakage Current
- - 1 µA
POWER MOSFET
ON-Resistance
rDS(ON) 4.6V < VIN < 6.5V
- 170 280 m
FN9280 Rev 2.00
June 30, 2008
Page 2 of 11



Renesas ISL9212
ISL9212
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
INPUT
C1
VIN
OUT
ISL6292
BATTERY
CHARGER
RILIM
ISL9212
ILIM
VB
EN
GND
WRN
RVB
+
BATTERY
PACK
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.
PART
RILIM
RVB
C1
DESCRIPTION
25k
200kto 1M
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
FN9280 Rev 2.00
June 30, 2008
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
+
Page 3 of 11







@ 2014 :: Datasheetspdf.com :: Semiconductors datasheet search & download site (Privacy Policy & Contact)