1
®
FN9271.1
ISL9214
Li-ion/Li-Polymer Battery Charger
Accepting Two Power Sources
The ISL9214 is a fully integrated low-cost single-cell Li-ion or
Li-polymer battery charger. The charger accepts two power
inputs, normally one from a USB (Universal Serial Bus) port
and the other from a desktop cradle. The ISL9214 is an ideal
charger for smart handheld devices that need to
communicate with a personal compute r via USB.
The ISL9214 features 28V maximum voltages for both the
cradle and the USB inputs. Due to the 28V rated inputs, low-
cost, large output tolerance adapters can be used safely.
When both inputs are powered, the cradle input is used to
charge the battery. The charge current is programmable for
the cradle input with a small resistor. The end-of-charge
current is also programmable by another external resistor.
The charger incorporates Thermaguard™ which protects the
IC against over temperature. If the die temperature rises
above a typical value of +125°C, a thermal foldback function
reduces the charge current automatically to prevent further
temperature rise. The charger has two indication pi ns. The
PPR (power present) pin outputs an open-drain logic LOW
when either the cradle or the USB input power is attached.
The CHG (charge) pin is also an open-drain output that
indicates a logic LOW when the charge curren t is abo ve a
minimum current level. When the charge current is below the
preset minimum current, the CHG pin will indicate a logic
HIGH signal. This status is latched and will be reset under
one of these events: (1) the part is disabled and re-enabled;
(2) the selected input source has been removed and re-
applied, (3) the USBON turns LOW, or (4) the BAT pin
voltage falls below the recharge threshold (~3.9V).
Features
• Complete Charger for Single-Cell Li-ion/Polymer Batteries
• Dual Input Power Sources for Cradle and USB
• Low Component Count
• Integrated Pass Elements
• Fixed 380mA USB Charge Current
• Programmable Cradle Charge Current
• Charge Current Thermaguard™ for Thermal
Protection
• 28V Maximum Voltages for Cradle and USB Input s
• Adapter Presence and Charge Indicatio ns
• Less than 0.5µA Leakage Current off the Battery when No
Input Power Attached
• Programmable End-of-Charge Current
• Ambient Temperature Range: -40°C to +85°C
• No External Blocking Diode Req uired
Applications
• Smart Handheld Devices
• Cell Phones, PDAs, MP3 Players
• Digital Still Cameras
• Handheld Test Equipment
Related Literature
• Technical Brief TB363 “Guidelines for Handling and
Processing Moisture Sensitive Surface Mo unt Devices
(SMDs)”
• Technical Brief TB389 “PCB Land Pattern Design and
Surface Mount Guidelines for QFN Packages”
Ordering Information
PART # PART
MARKING TEMP.
RANGE (°C) PACKAGE PKG.
DWG. #
ISL9214IRZ
(Note) 214Z -40 to +85
10 Ld 3x3 DFN
(Pb-free)
L10.3x3C
ISL9214IRZ-T
(Note) 214Z -40 to +85
10 Ld 3x3 DFN
(Pb-free)
Tape and Reel
L10.3x3C
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.
Pinout ISL9214
10 LD DFN
TOP VIEW
2
3
4
1
5
9
8
7
10
6
BAT
ICDL
GND
USBON
IMIN
CRDL
USB
PPR
CHG
EN
Data Sheet November 30, 2006
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. 2005. All Rights Reserved. Thermaguard is a trademark of Intersil Americas Inc.
All other trademarks mentioned are the property of their respective owners.
2FN9271.1
November 30, 2006
Block Diagram
USB BAT
+
- VREF
VA
-
+
CA
IR
ICDL
IMIN
REFERENCE
CURRENT
CONTROL
TEMP
MONITOR
ENA
CPPR LBAT
CPPR
CONTROL
USB CRDL BAT
PPR
CHG
GND
CRDL
USBON
EN
ISL9214
3FN9271.1
November 30, 2006
Typical Applications
A Simple Charger Accepting Power from Both a USB Port and a Desktop Cradle
COMPONENT SELECTION
RICDL 12.4kΩ for 0.55A cradle charge current
RIMIN 10kΩ for 55mA end-of-charge current
R3, R4350Ω
C1, C2, C31µF ceramic capacitor
R1, R21Ω
D1, D2LEDs
A
Simple Charger with Programmable Charge Current and Wide Input Voltage Range
COMPONENT SELECTION
RICDL 12.4kΩ for 0.55A cradle charge current
RIMIN 10kΩ for 55mA end-of-charge current
R3, R4350Ω
C1, C31µF ceramic capacitor
R11Ω
D1, D2LEDs
ISL9214
TO BATTERY
CRDL BAT
ICDL
IMIN
TO USB
CONNECTOR
C1
R4
C3
USB
EN
CHG
C2
TO CRADLE
CONNECTOR
RICDL
R2
USBON ON
OFF
GND
PPR
R3
D1D2
DISABLE
ENABLE
RIMIN
R1
ISL9214
TO BATTERY
CRDL BAT
ICDL
IMIN
C1
R4
C3
USB
EN
CHG
TO CRADLE
CONNECTOR
RICDL
USBON
GND
PPR
R3
D1D2
DISABLE
ENABLE
RIMIN
R1
ISL9214
4FN9271.1
November 30, 2006
Absolute Maximum Ratings Thermal Information
Supply Voltage (CRDL, USB) . . . . . . . . . . . . . . . . . . . .-0.3V to 28V
Other Input Voltage (EN, USBON, ICDL, IMIN, BAT) . . .-0.3V to 7V
Open-Drain Pull-Up Voltage (PPR, CHG) . . . . . . . . . . . .-0.3V to 7V
ESD Rating
Human Body Model (JEDEC JESD22-A114-D) . . . . . . . . . .7000V
Machine Model (JEDEC JESD22-A115-A). . . . . . . . . . . . . . .300V
Recommended Operating Conditions
Ambient Temperature Range. . . . . . . . . . . . . . . . . . .-40°C to +85°C
Supply Voltage (USB Pin) . . . . . . . . . . . . . . . . . . . . . . 4.3V to 5.5V
Supply Voltage (CRDL Pin) . . . . . . . . . . . . . . . . . . . . . . 4.3V to 24V
Typical Cradle Charge Current . . . . . . . . . . . . . . . . . . 100mA to 1A
Typical USB Charge Current . . . . . . . . . . . . . . . . . . . . . . . . . 380mA
Thermal Resistance θJA (°C/W) θJC (°C/W)
DFN Package (Notes 1, 2). . . . . . . . . . 40 2.5
Maximum Junction Temperature (Plastic Package) . . . . . . .+150°C
Maximum Storage Temperature Range. . . . . . . . . .-65°C to +150°C
Maximum Lead Temperature (Soldering 10s) . . . . . . . . . . . .+300°C
CAUTION: Stresses above those listed in “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress only rating and operation of the
device at these or any other conditions above those indicated in the operational sections of this specification is not implied.
+150°C max junction temperature is intended fo r short periods of ti me to pr event sho rtening t he lif etime. O peratio n clo se to +15 0°C ju nctio n ma y t rigg er the shu t down of
the device even before +150°C, si nce th is number is specified as typical.
NOTES:
1. θJA 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.
2. For theta θJC the "case temp." location is the center of the exposed metal pad on the package underside.
Electrical Specifications Typical Values Are Tested at USB = CRDL = 5V and amb ient t emp erature is at +25°C, Unless Otherwise Note d.
All Maximum and Minimum Values Are Guaranteed Under the Recommended Operating Conditions
PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNITS
POWER-ON RESET
Rising USB/CRDL Threshold 3.4 3.9 4.2 V
Falling USB/CRDL Threshold 3.2 3.7 4.0 V
VIN-BAT OFFSET VOLTAGE
Rising Edge VOS VBAT = 4.0V, use CHG pin to indicate the
comparator output (Note 3) - 150 250 mV
Falling Edge VOS 20 80 - mV
STANDBY CURRENT
BAT Pin Sink Current ISTANDBY EN = HIGH or both inputs are floating - 0.05 0.5 μA
CRDL Pin Supply Current ICRDL EN = HIGH - 150 220 μA
USB Pin Supply Current IUSB - 150 220 μA
CRDL/USB Pin Supply Current EN = LOW or floating - 0.55 0.8 mA
VOLTAGE REGULATION
Output Voltage VCH Load = 10mA 4.158 4.2 4.242 V
Output Voltage VCH Load = 10mA (Tj = +25°C) 4.174 4.2 4.226 V
CRDL PMOS On Resistance VBAT = 3.8V, ICHARGER = 0.3A, (Tj = +25°C) 200 600 850 mΩ
USB PMOS On Resistance VBAT = 3.8V, ICHARGER = 0.3A, (Tj = +25°C) 200 600 850 mΩ
CHARGE CURRENT (Note 4)
ICDL Pin Output Voltage VICDL VBAT = 3.8V 1.19 1.22 1.25 V
CRDL Input Constant Charge Current ICHARGE RICDL = 12 . 4kΩ, VBAT: 2.7 - 3.8V 520 550 580 mA
CRDL Input Trickle Charge Current ITRICKLE RICDL = 12 . 4kΩ, VBAT = 2.2V
Given as a % of the CRDL ICHARGE 16 18 20 %
CRDL and USB End-of-Charge Threshold IMIN RIMIN = 10.0kΩ46.5 55 63.5 mA
ISL9214
5FN9271.1
November 30, 2006
USB Input Constant Charge Current ICHARGE USBON = HIGH, VBAT: 2.7 - 3.8V 332 380 410 mA
USB Input Trickle Charge Current ITRICKLE VBAT = 2.2V 66 80 91 mA
PRECONDITIONING CHARGE THRESHOLD
Preconditioning Charge Threshold Voltage VMIN 2.5 2.6 2.7 V
RECHARGE THRESHOLD
Recharge Threshold Voltage VRCH 3.8 3.9 4.0 V
INTERNAL TEMPERATURE MONITORING
Current Foldback Threshold (Note 5) TFOLD 110 125 140 °C
LOGIC INPUT AND OUTPUT
USBON Logic Input High 1.3 - - V
USBON Logic Input LOW --0.4V
EN Pin Logic Input High 1.3 - - V
EN Pin Logic Input Low --0.4V
EN Pin Internal Pull Down Resistance 350 600 850 kΩ
USBON Pin internal Pull Down Resistance 700 1000 1300 kΩ
CHG/PPR Sink Current Pin Voltage = 0.8V 10 - - mA
NOTES:
3. The 4.0V VBAT is selected so that the CHG output can be used as the indication for the offset comparator output indication. If the VBAT is lower
than the POR threshold, no output pin can be used for indication.
4. The charge current can be affected by the thermal foldback function if the IC under the test setup cannot dissipate the heat.
5. Guaranteed by characterization.
Electrical Specifications Typical Values Are Tested at USB = CRDL = 5V and amb ient t emp erature is at +25°C, Unless Otherwise Note d.
All Maximum and Minimum Values Are Guaranteed Under the Recommended Operating Condition s (Continued)
PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNITS
Typical Operating Performance The test conditions for the Typical Operating Performance are: VIN = 5V, TA = +25°C,
RICDL = 12.4kΩ, RIMIN = 10.0kΩ, VBAT = 3.7V, Unless Otherwise Noted
FIGURE 1. CHARGER OUTPUT VOLTAGE vs TEMPERATURE FIGURE 2. CHARGER OUTPUT VOLTAGE vs INPUT VOLTAGE
4.100
4.120
4.140
4.160
4.180
4.200
-40 -20 0 20 40 60 80 100 120 140
TEMPERATURE (°C)
VBAT (V)
CRDL
USB
CHARGE CURRENT = 1mA
4.1900
4.1925
4.1950
4.1975
4.2000
4.2025
4.2050
4.2075
4.2100
0 5 10 15 20 25
VIN (V)
VBAT (V)
CRDL
USB
CHARGE CURRENT = 1mA
ISL9214
6FN9271.1
November 30, 2006
FIGURE 3. CHARGE CURRENT vs OUTPUT VOLTAGE FIGURE 4. CHARGE CURRENT vs AMBIENT TEMPERATURE
FIGURE 5. rDS(ON) vs TEMPERATURE AT 3.7V OUTPUT FIGURE 6. REVERSE CURRENT vs TEMPERATURE
FIGURE 7. CRADLE INPUT QUIESCENT CURRENT vs
TEMPERATURE FIGURE 8. USB INPUT QUIESCENT CURRENT vs
TEMPERATURE
Typical Operating Performance The test conditions for the Typical Operating Performance are: VIN = 5V, TA = +25°C,
RICDL = 12.4kΩ, RIMIN = 10.0kΩ, VBAT = 3.7V, Unless Otherwise Noted (Continued)
200
250
300
350
400
450
500
550
600
2.5 2.8 3.0 3.3 3.5 3.8 4.0
VBAT (V)
CHARGE CURRENT (mA)
CRDL, RICDL = 12.4K
USB
200
250
300
350
400
450
500
550
600
-40 -20 0 20 40 60 80 100 120 140
TEMPERATURE (°C)
CHARGE CURRENT (mA)
USB
CRDL, RICDL = 12.4K
0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
2.0
-40 -20 0 20 40 60 80 100
TEMPERATURE (°C)
rDS(ON) (Ω)
CRDL
USB
0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
2.0
-40 -20 0 20 40 60 80 100 120 140
TEMPERATURE (°C)
LEAKAGE CURRENT (μA)
VBAT = 4.2V
0
100
200
300
400
500
600
700
-40 -20 0 20 40 60 80 100 120 140
TEMPERATURE (°C)
QUIESCENT CURRENT (µA)
USB
CRDL
IOUT = 0mA
0
100
200
300
400
500
600
700
-40 -20 0 20 40 60 80 100 120 140
TEMPERATURE (°C)
QUIESCENT CURRENT (µA)
USB
CRDL
IOUT = 0mA
ISL9214
7FN9271.1
November 30, 2006
Functional Pin Description
CRDL (Pin 1)
Cradle input. This pin is usually connected to a cradle power
input. The maximum input voltage is 28V. The charge
current from this pin is programmable with the ICDL pin up to
1A. When this pin is connected to a power source, no charge
current is drawn from the USB pin. A 1µF or larger value
ceramic capacitor is recommended for decoupling.
USB (Pin 2)
USB input. This pin is usually connected to a USB port
power connector. Other sources that are also acceptable.
The charge current from the USB pin is fixed at typically
380mA. A 1µF or larger value ceramic capacitor is
recommended for decoupling. It is also recommended to
have a 1Ω resistor in series with the decoupling capacitor to
prevent an over-shoot voltage when a USB cable is plugged
in.
PPR (Pin 3)
Power presence indication. An open-drain output pin which
turns ON when either the USB input voltage or the CRDL
input voltage is above its POR level, regardless if the
charger is enabled or disabled. Otherwise turns OFF. This
pin provides a wake-up signal to a microprocessor when
either the cradle or the USB power is connected.
CHG (Pin 4)
Charge indication pin. An open-drai n output which turns ON
when the charge current is above programmable threshold.
Otherwise turns OFF.
EN (Pin 5)
Enable logic input. Connect to LOW or leave floating to
enable the charger.
IMIN (Pin 6)
IMIN is the programmable input for the end-of-charge
current. IMIN is calculated by the following equation:
Where RIMIN is in kΩ. IMIN is applicable for both cradle and
USB charging.
USBON (Pin 7)
The USBON pin is a control input to turn off the USB charge
function if desired. Connect to LOW or leave floating to turn
off USB charge.
GND (Pin 8)
System ground.
ICDL (Pin 9)
The ICDL pin has two functions. The first function is to
program the cradle charge current during the constant-
current mode. The voltage of this pin is 1.22V during the
constant-current mode of the cradle charger. The constant-
current mode current is programmed by the following
equations:
where RICDL is the resistor in kΩ, connected to the ICDL pin
(see the Typical Applicati on).
It is recommended that the charge current be programmed
in the range of 100mA to 1000mA.
FIGURE 9. CRADLE INPUT QUIESCENT CURRENT vs INPUT
VOLTAGE FIGURE 10. USB INPUT QUIESCENT CURRENT vs INPUT
VOLTAGE
Typical Operating Performance The test conditions for the Typical Operating Performance are: VIN = 5V, TA = +25°C,
RICDL = 12.4kΩ, RIMIN = 10.0kΩ, VBAT = 3.7V, Unless Otherwise Noted (Continued)
0
100
200
300
400
500
600
700
800
0 5 10 15 20 25
TEMPERATUR E (°C)
QUIESCENT CURRENT (µA)
DISABLED
ENABLED
IOUT = 0mA
DISABLED
ENABLED
IOUT = 0mA
0
100
200
300
400
500
600
700
800
0 5 10 15 20 25
TEMPERATURE (°C)
QUIESCENT CURRENT (µA)
DISABLED
ENABLED
IOUT = 0mA
DISABLED
ENABLED
IOUT = 0mA
IMIN 550
RIMIN
---------------- mA()=(EQ. 1)
ICDL 6820
RICDL
----------------- mA()=(EQ. 2)
ISL9214
8FN9271.1
November 30, 2006
The second function of the ICDL pin is to monitor the actual
charge current. The voltage of this pin, VICDL, is proportional
to the actual charge current, ICHG.
The cradle charge current should be programmed equal or
higher than the USB current; otherwise, the ICDL pin voltage
will be higher than 1.22V during the constant current mode
when the USB charge r is w or k in g . Th e ch arg e r stil l works
properly but the accuracy of the current monitoring voltage
degrades and saturates at approximately 2.1V.
BAT (Pin 10)
Charger output pin. Connect this pin to the battery pack or
the battery cell. A 1µF or larger value ceramic capacitor is
recommended for decoupling. The charger relies on the
battery for stability so a battery should always be connected
to the BAT pin.
Description
The ISL9214 is designed for a singl e-cell Li-ion or Li-polymer
battery charging circuit tha t accept s both a USB port and a
desktop cradle as it s power so urce. While the ch arge current
from the USB input source is fixed at 380mA, the charge
current from the cradle input is programmable between 0.1A
and 1.0A by the resistor RICDL. Similarly, the end-of-charge
current is programmable by connecting a resistor at the IMIN
pin. The end-of-charge thresho ld can be calculated with the
equation given on the Functional Pin D escription section. The
same threshold applies to both the crad le and the USB inputs.
Input Auto Selection
When both inpu t so urces are present, the charge r sel e cts
only one power source to charge the battery. When the
CRDL input is higher than the POR threshold, CRDL is
selected as the power source. Otherwise the USB input is
selected. If the CRDL input voltage is below the battery
voltage but the USB input voltage is higher than the battery
voltage, then the USB input is used to charge the battery.
The control circuit always breaks both internal power
devices before switching from one power source to the other
to avoid a cross conduction of both power MOSFETs.
USB Charge Current
When the USB port is selected as the power source, the
charge current enabled by the logic input at the USBON pin.
When the USBON is driven to logic LOW, the charger is
disabled. When the USBON is driven to logic HIGH, the
charge current is fixed at a typical value of 380mA. Thus for
the USB input, the USBON pin has a similar function as the
EN pin. The following table describes the USB cha rg e
control by both the USBON pin and EN pin:
The USBON pin is equivalent to a logic LOW when left
floating. Typically the P-channel MOSFET for the USB input
has an rDS(ON) of 600mΩ at room temperature. With a
380mA charge current, the typical head room is 228mV.
Thus, if the input voltage drops to a level that the voltage
difference between the USB pin and the BAT pin is less than
228mV, the rDS(ON) becomes a limiting factor of the charge
current; and the charger drops out the constant current
regulation.
Cradle Charge Current
The cradle charge current is enabled by the EN pin only, the
USBON pin has no control on the cradle charge current. The
cradle charge current is programmed with the external
resistor connected between the ICDL pin and the GND pin.
The current can be calculated with the equation given in the
ICDL pin description. The typical rDS(ON) of the P-channel
MOSFET for the CRDL input is 600mΩ at room temperat ure.
When the head room between the input and output voltages
is small, the actual charge current, similar to the USB case,
could be limited by the rDS(ON). On the other hand, if the
head room between the input and output voltages is large,
the charge current may be limited by the thermal foldback
threshold.
Floating Charge Voltage
The floating voltage during the co nstant voltage phase is
4.2V. The floating voltage has an 1% accuracy over the
ambient temperature range of -40°C to +85°C.
Trickle Charge Current
When the battery voltage is below the minimum battery
voltage VMIN given in the electrical specification, the charger
operates in a trickle/preconditioning mode, where the charge
current is typically 18% of the programmed charge current
for the cradle input. If power comes from the USB input, the
trickle current is approximately 80mA.
End-Of-Charge Indication
When an EOC condition (charge current falls below IMIN
during constant voltage charge) is encountered, the CHG pin
internal open-drain MOSFET turns off. The IMIN threshold is
programmable by the resistor at the IMIN pin for both cradle
and USB inputs. Once the EOC condition is reached, the
status is latched and can be reset at one of the following
conditions:
1. The part is disabled and re-enabled
2. The selected input source has been removed and re-
applied
3. The USBON turns LOW and turns back to HIGH for the
USB input
4. The BAT pin voltage falls below the recharge threshold
(~3.9V)
TABLE 1. USB CHARGE CONTROL
EN = LOW EN = HIGH
USBON = LOW Disabled Disabled
USBON = HIGH Enabled Disabled
ISL9214
9FN9271.1
November 30, 2006
FIGURE 11. TYPICAL CHARGE CYCLE
Figure 11 shows the typical charge profile including the end-
of-charge e v en t.
Power Presence Indication
When either the USB or the cradle input voltage is above the
POR threshold, the PPR pin internal open-drain MOSFET
turns on indicating the presence of input power.
Power-Good Conditions
Even if there is a power present, the charger will not deliver
any current to the output if the power-go o d co nd i ti o ns are
not met. The following two conditions together define the
power-good voltage range:
1. VCDRL or VUSB > VPOR
2. VCDRL or VUSB - VBAT > VOS
where VPOR is the power on reset threshold, VOS is the
offset voltage for the input and output voltage comparator, All
these thresholds have hysteresis, as given in the Electrical
Specification table. The charger will not charge the battery if
the input voltage does not meet the power-good conditions.
Thermal Foldback (The rmaguard™)
The thermal foldback function reduces the charge current
when the internal temperature reaches the thermal foldback
threshold, which is typically 125°C. This protects the charger
from excessive thermal stress at high input voltages.
Input Bypass Capacitors
Due to the inductance of the power leads of the wall adapter
or USB source, the input capacitor type must be properly
selected to prevent high voltage transient during a hot-plug
event. A tantalum capacitors is a good choice for its high
ESR, providing damping to the voltage transient. Multi-layer
ceramic capacitors, however, have a very low ESR and
hence when chosen as input capacitors, a 1-Ω series
resistor must be used, as shown in the Typical Applications
Section, to provide adequate damping.
State Diagram
The state diagram for the charger functions is shown in
Figure 12. The diagram starts with the Power-Off state.
When at least one input voltage rises above the POR
threshold, the charge resets it self. If both input voltages are
above the POR threshold, the charger selects the CRDL
input as the power source. Then if the EN pin is at a logic
HIGH voltage, the charger stays in disabled state. If the EN
pin goes LOW, the fast charge starts. Any time the EN pin
turns HIGH, the charger returns to the disabled state. When
the EOC condition is reached, the CHG will turn to logic
HIGH to indicate a charge complete status but the charge
will continue. The EOC condition is then latched until one of
the four re-charge conditions is encountered, as shown in
Figure 11 .
IREF
TRICKLE CC CV
IREF
18
100
IMIN
4.2V
TIME
2.6V
CHARGE
CURRENT
CHARGE
VOLTAGE
3.9V
CHG
INDICATION
ISL9214
10 FN9271.1
November 30, 2006
ISL9214
FAST CHARGE
Charger: ON
PPR: ON
CHG: ON
CHARGE
COMPLETE
Charger: ON
PPR: ON
CHG: OFF
VBAT > VRCH
and ICHG < IMIN
SOURCE
SELECTED
CHARGER
DISABLED
Charger: OFF
PPR: ON
CHG: OFF
Enabled,
VBAT<VMIN
Anytime EN pin
changes to
disable
PWR OFF
Charger: OFF
PPR: OFF
CHG: OFF
Not
Enabled
RECHARGE
CONDITION is
MET and
VBAT< VMIN
VCRDL < VPOR
VUSB < VPOR
POR
CRDL input selected
Charger: OFF
PPR: ON
CHG: OFF
VCRDL > VPOR
VUSB > VPOR
EN=HI
POR
CRDL input selected
Charger: OFF
PPR: ON
CHG: OFF
VCRDL > VPOR
VUSB < VPOR
EN=HI
VCRDL < VPOR
VUSB > VPOR
EN=HI
POR
USB input selected
Charger: OFF
PPR: ON
CHG: OFF
TRICKLE CHARGE
Charger: ON
PPR: ON
CHG: ON
Enabled,
VBAT>VMIN VBAT>VMIN
RECHARGE
CONDITIO N is
MET and
VBAT> VMIN
FIGURE 12. STAT E DIAGRAM
11
All Intersil U.S. products are manufactured, assembled and tested utilizing ISO9000 quality systems.
Intersil Corporation’s quality certifications can be viewed at www.intersil.com/design/quality
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FN9271.1
November 30, 2006
ISL9214
Dual Flat No-Lead Plastic Package (DFN)
//
NX (b)
SECTION "C-C"
FOR ODD TERMINAL/SIDE
e
CC
5
C
L
TERMINAL TIP
(A1)
BOTTOM VIEW
A
6
AREA
INDEX
C
C
0.10
0.08
SIDE VIEW
0.10
2X
E
A
B
C0.10
D
TOP
VIEW
CB
2X
6
8
AREA
INDEX
NX L
E2
E2/2
REF.
e
N
(Nd-1)Xe
(DATUM A)
(DATUM B)
5
0.10
87
D2
BAC
N-1
12
PLANE
SEATING
C
A
A3
NX b
D2/2
NX k
9L
M
L10.3x3C
10 LEAD DUAL FLAT NO-LEAD PLASTIC PACKAGE
SYMBOL
MILLIMETERS
NOTESMIN NOMINAL MAX
A 0.85 0.90 0.95 -
A1 - - 0.05 -
A3 0.20 REF -
b 0.20 0.25 0.30 5, 8
D 3.00 BSC -
D2 2.33 2.38 2.43 7, 8
E 3.00 BSC -
E2 1.59 1.64 1.69 7, 8
e 0.50 BSC -
k0.20- - -
L 0.35 0.40 0.45 8
N102
Nd 5 3
Rev. 1 4/06
NOTES:
1. Dimensioning and tolerancing conform to ASME Y14.5-1994.
2. N is the number of terminals.
3. Nd refers to the number of terminals on D.
4. All dimensions are in millimeters. Angles are in degrees.
5. Dimension b applies to the metallized terminal and is measured
between 0.15mm and 0.30mm from the terminal tip.
6. The configuration of the pin #1 identifier is optional, but must be
located wi thin the zone indicated. The pin #1 identif ier may be
either a mold or mark feature.
7. Dimensions D2 and E2 are for the exposed pads which provide
improved electrical and thermal performance.
8. Nominal dimensions are provided to assist with PCB Land
Pattern Design efforts, see Intersil Technical Brief TB389.
9. COMPLIANT TO JEDEC MO-229-WEED-3 except for
dimensions E2 & D2.
