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PDF ISL9214 Data sheet ( Hoja de datos )
| Número de pieza | ISL9214 | |
| Descripción | Li-ion/Li Polymer Battery Charger | |
| Fabricantes | Intersil Corporation | |
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Data Sheet
November 30, 2006
ISL9214
FN9271.1
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 computer 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 pins. 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 current is above 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).
Ordering Information
PART #
PART
TEMP.
PKG.
MARKING RANGE (°C) PACKAGE DWG. #
ISL9214IRZ
(Note)
214Z
-40 to +85 10 Ld 3x3 DFN L10.3x3C
(Pb-free)
ISL9214IRZ-T 214Z
(Note)
-40 to +85 10 Ld 3x3 DFN L10.3x3C
(Pb-free)
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.
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 Inputs
• Adapter Presence and Charge Indications
• 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 Required
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 Mount Devices
(SMDs)”
• Technical Brief TB389 “PCB Land Pattern Design and
Surface Mount Guidelines for QFN Packages”
Pinout
ISL9214
10 LD DFN
TOP VIEW
CRDL 1
USB 2
PPR 3
CHG 4
EN 5
10 BAT
9 ICDL
8 GND
7 USBON
6 IMIN
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. 2005. All Rights Reserved. Thermaguard is a trademark of Intersil Americas Inc.
All other trademarks mentioned are the property of their respective owners.
1 page  
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ISL9214
Electrical Specifications Typical Values Are Tested at USB = CRDL = 5V and ambient temperature is at +25°C, Unless Otherwise Noted.
All Maximum and Minimum Values Are Guaranteed Under the Recommended Operating Conditions (Continued)
PARAMETER
SYMBOL
TEST CONDITIONS
MIN TYP MAX UNITS
USB Input Constant Charge Current
ICHARGE USBON = HIGH, VBAT: 2.7 - 3.8V
USB Input Trickle Charge Current
ITRICKLE VBAT = 2.2V
PRECONDITIONING CHARGE THRESHOLD
332 380 410 mA
66 80 91 mA
Preconditioning Charge Threshold Voltage
RECHARGE THRESHOLD
VMIN
2.5 2.6 2.7
V
Recharge Threshold Voltage
INTERNAL TEMPERATURE MONITORING
VRCH
3.8 3.9 4.0
V
Current Foldback Threshold (Note 5)
LOGIC INPUT AND OUTPUT
TFOLD
110 125 140
°C
USBON Logic Input High
1.3 - - V
USBON Logic Input LOW
- - 0.4 V
EN Pin Logic Input High
1.3 - - V
EN Pin Logic Input Low
EN Pin Internal Pull Down Resistance
USBON Pin internal Pull Down Resistance
- - 0.4
350 600 850
700 1000 1300
V
kΩ
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.
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
4.200
4.180
CRDL
4.160
4.140
4.120
CHARGE CURRENT = 1mA
USB
4.100
-40 -20
0 20 40 60 80 100 120 140
TEMPERATURE (°C)
FIGURE 1. CHARGER OUTPUT VOLTAGE vs TEMPERATURE
4.2100
4.2075
4.2050
4.2025
4.2000
4.1975
4.1950
CHARGE CURRENT = 1mA
CRDL
USB
4.1925
4.1900
0
5 10 15 20 25
VIN (V)
FIGURE 2. CHARGER OUTPUT VOLTAGE vs INPUT VOLTAGE
5 FN9271.1
November 30, 2006
5 Page 
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ISL9214
Dual Flat No-Lead Plastic Package (DFN)
2X
AD
0.10 C A
2X
0.10 C B
6
INDEX
AREA
TOP VIEW
E
B
C SIDE VIEW
SEATING
PLANE
(DATUM B)
D2
D2/2
6
INDEX
AREA
12
(DATUM A)
A
A3
// 0.10 C
0.08 C
78
NX k
E2
E2/2
NX L
8
N N-1
e
(Nd-1)Xe
REF.
BOTTOM VIEW
NX b
5
0.10 M C A B
NX (b)
5
(A1)
SECTION "C-C"
CL
9L
e
CC
TERMINAL TIP
FOR ODD TERMINAL/SIDE
L10.3x3C
10 LEAD DUAL FLAT NO-LEAD PLASTIC PACKAGE
MILLIMETERS
SYMBOL
MIN NOMINAL MAX
NOTES
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
-
k 0.20 - - -
L 0.35 0.40 0.45 8
N 10 2
Nd 5 3
NOTES:
Rev. 1 4/06
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 within the zone indicated. The pin #1 identifier 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.
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
Intersil products are sold by description only. Intersil Corporation reserves the right to make changes in circuit design, software and/or specifications at any time without
notice. 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.
For information regarding Intersil Corporation and its products, see www.intersil.com
11 FN9271.1
November 30, 2006
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| Páginas | Total 11 Páginas | |
| PDF Descargar | [ Datasheet ISL9214.PDF ] | |
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