ISL6298-2CR3Z Intersil, ISL6298-2CR3Z Datasheet

IC CHARGER LI-ION 4.2V 3X3 10DFN

ISL6298-2CR3Z

Manufacturer Part Number
ISL6298-2CR3Z
Description
IC CHARGER LI-ION 4.2V 3X3 10DFN
Manufacturer
Intersil
Datasheet

Specifications of ISL6298-2CR3Z

Function
Charge Management
Battery Type
Lithium-Ion (Li-Ion), Lithium-Polymer (Li-Pol)
Voltage - Supply
4.3 V ~ 6.5 V
Operating Temperature
-20°C ~ 70°C
Mounting Type
Surface Mount
Package / Case
10-VFDFN Exposed Pad
Lead Free Status / RoHS Status
Lead free / RoHS Compliant

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
ISL6298-2CR3Z
Manufacturer:
INTESIL
Quantity:
395
Li-ion/Li-Polymer Battery Charger
The ISL6298 is an integrated single-cell Li-ion or Li-polymer
battery charger optimized for low current applications. The
targeted applications include mini-disk (MD) players, Blue
Tooth headsets, or other applications that use low-capacity
battery cells.
The ISL6298 is a linear charger that charges the battery in a
CC/CV (constant current/constant voltage) profile. The
charge current is programmable with an external resistor up
to 450mA during the CC phase. Once the battery voltage
reaches 4.2V (or 4.1V), the charger enters CV mode and the
charge current starts to reduce. When the charger current
drops to a user-programmable threshold, the charger
indicates the end-of-charge with a STATUS pin. The charger
does not actually terminate until a user-programmable total
fast charge time is reached. If the battery voltage drops to a
recharge threshold after termination, the charger will re-
charge the battery to its full capacity. The charger
preconditions the battery with 20% of the programmed CC
current if the battery voltage is below 2.8V. The total
precharge time is limited to 1/8 of the total fast charge time.
The ISL6298 features charge current thermal foldback to
guarantee safe operation when the printed circuit board is
space-limited for thermal dissipation. Additional features
include an NTC thermistor interface for monitoring the
ambient temperature, the ability to disable the time limit of
the fast charge, an FAULT indication, and a thermally
enhanced QFN or DFN package.
Ordering Information
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.
ISL6298CR4Z
ISL6298CR4Z-T
ISL6298-2CR3Z
ISL6298-2CR3Z-T 982Z
ISL6298-2CR4Z
ISL6298-2CR4Z-T 6298CR4Z 16 Ld 4x4 QFN Tape and Reel
PART # (NOTE)
6298CR4Z -20 to 70 16 Ld 4x4 QFN L16.4x4
6298CR4Z 16 Ld 4x4 QFN Tape and Reel
982Z
6298CR4Z -20 to 70 16 Ld 4x4 QFN L16.4x4
MARKING
PART
®
1
-20 to 70 10 Ld 3x3 DFN L10.3x3
10 Ld 3x3 DFN Tape and Reel
RANGE
TEMP.
(°C)
Data Sheet
PACKAGE
(Pb-FREE)
DWG. #
1-888-INTERSIL or 1-888-468-3774
PKG.
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
STATUS
FAULT
TIME
Features
• Complete Charger for Single-Cell Li-ion Batteries
• Integrated Pass Element and Current Sensor
• No External Blocking Diode Required
• 1% Voltage Accuracy
• Programmable Current Limit up to 450mA
• Programmable End-of-Charge Current
• Preconditioning with 20% Fast Charge Current
• 10% Accuracy at 250mA
• Charge Current Thermal Foldback
• NTC Thermistor Interface for Battery Temperature Monitor
• User Programmable Safety Timer
• Ambient Temperature Range: -20°C to 70°C
• Thermally-Enhanced QFN Packages
• Pb-Free Plus Anneal Available (RoHS Compliant)
Applications
• MD Players, Blue-Tooth Headsets and MP3 Players
• Portable Instruments
• PDAs, Cell Phones and Smart Phones
• Stand-Alone Chargers
Related Literature
• Technical Brief TB363 “Guidelines for Handling and
• Technical Brief TB379 “Thermal Characterization of
• Technical Brief TB389 “PCB Land Pattern Design and
Pinouts
VIN
Processing Moisture Sensitive Surface Mount Devices
(SMDs)”
Packaged Semiconductor Devices”
Surface Mount Guidelines for QFN Packages”
ISL6298 (16 LD QFN)
1
2
3
4
TOP VIEW
16
5
All other trademarks mentioned are the property of their respective owners.
March 9, 2006
|
15
6
Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright © Intersil Americas Inc. 2004-2006. All Rights Reserved.
14 13
7
8
12
11
10
9
VBAT
TEMP
IMIN
IREF
STATUS
FAULT
TIME
GND
VIN
ISL6298 (10 LD DFN)
1
2
3
4
5
TOP VIEW
ISL6298
FN9173.4
10
9
8
7
6
VBAT
TEMP
IREF
V2P8
EN

Related parts for ISL6298-2CR3Z

ISL6298-2CR3Z Summary of contents

Page 1

... ISL6298CR4Z-T 6298CR4Z 16 Ld 4x4 QFN Tape and Reel ISL6298-2CR3Z 982Z - 3x3 DFN L10.3x3 ISL6298-2CR3Z-T 982Z 10 Ld 3x3 DFN Tape and Reel ISL6298-2CR4Z 6298CR4Z - 4x4 QFN L16.4x4 ISL6298-2CR4Z-T 6298CR4Z 16 Ld 4x4 QFN Tape and Reel NOTE: Intersil Pb-free plus anneal products employ special Pb-free material sets ...

Page 2

... CHARGE IREF BAT I V < 0.4V 3.7V, 0°C ~ 50°C CHARGE IREF BAT I V < 0.4V 2.0V TRICKLE IREF BAT 80kΩ EOC IMIN V For ISL6298 only RECHRG V For ISL6298-2 only RECHRG θ (°C/ MIN TYP MAX 3.0 3.4 4.0 2.25 2 4.059 4 ...

Page 3

... NOTES: 3. The POR falling edge voltage is guaranteed to be lower than the Trickle Charge Threshold Voltage (V 4. Guaranteed by characterization. 3 ISL6298 SYMBOL TEST CONDITIONS V For ISL6298 only MIN V For ISL6298-2 only MIN V V2P8 = 3.0V TMIN V2P8 = 3.0V V V2P8 = 3.0V TMAX V2P8 = 3.0V V V2P8 = 3.0V ...

Page 4

... IREF 100 TEMPERATURE ( FIGURE 5. CHARGE CURRENT vs AMBIENT TEMPERATURE 4 ISL6298 The test conditions for the Typical Operating Performance are 80kΩ 3.7V, Unless Otherwise Noted IREF IMIN BAT FIGURE 2. CHARGER OUTPUT VOLTAGE vs TEMPERATURE FIGURE 4. CHARGE CURRENT vs BATTERY VOLTAGE = 50kΩ = 100kΩ ...

Page 5

... FIGURE TEMPERATURE AT 3.7V OUTPUT DS(ON) 1.2 1.0 0.8 0.6 0.4 0.2 0 TEMPERATURE ( FIGURE 11. REVERSE CURRENT vs TEMPERATURE 5 ISL6298 The test conditions for the Typical Operating Performance are 80kΩ 3.7V, Unless Otherwise Noted (Continued) IREF IMIN BAT 5.5 6 6.5 80 100 120 O C) FIGURE 10 ...

Page 6

... INPUT VOLTAGE (V) FIGURE 13. INPUT QUIESCENT CURRENT vs INPUT VOLTAGE WHEN SHUTDOWN FIGURE 15. STATUS/FAULT PIN VOLTAGE vs CURRENT WHEN THE OPEN-DRAIN MOSFET TURNS ON 6 ISL6298 The test conditions for the Typical Operating Performance are 80kΩ 3.7V, Unless Otherwise Noted (Continued) IREF ...

Page 7

... VBAT (Pin 12, 13, 14 for 4x4; Pin 10 for 3x3) VBAT is the connection to the battery. Typically a 10µF Tantalum capacitor is needed for stability when there is no battery attached. When a battery is attached, only a 1µF ceramic capacitor is required. VIN VBAT TOEN 500 500 ISL6298 TEMP FAULT IREF STATUS IMIN EN R V2P8 80 ...

Page 8

... THE TEMP PIN IS SHORT-CIRCUITED TO IREF PIN. THE INDICATIONS USES V2P8 PIN OUTPUT AS THE PULL-UP VOLTAGE. 8 ISL6298 VIN VBAT 500 500 ISL6298 (3X3 DFN TEMP FAULT STATUS V2P8 EN IREF TIME GND C TIME 15 nF VIN VBAT ISL6298 (3X3 DFN) V2P8 10k 10k TEMP 1 2 FAULT IREF STATUS TIME GND C TIME 15 nF µ Battery Pack µ ...

Page 9

... R IREF References IMIN I MIN R IMIN I SEN V2P8 TEMP Interface TOEN TIME GND NOTE: For the 3x3 DFN package, the TOEN pin is left floating and the IMIN pin is connected to the V2P8 pin internally. 9 ISL6298 Q MAIN Q 25000:1 SEN Current Mirror SEN Input_OK + CHRG ...

Page 10

... The two indication pins, STATUS and FAULT, indicate a LOW and a HIGH logic signal respectively. Figure 20 illustrates the startup of the charger between t The ISL6298 has a typical rising POR threshold of 3.4V and a falling POR threshold of 2.4V. The 2.4V falling threshold guarantees charger operation with a current-limited adapter to minimize the thermal dissipation ...

Page 11

... Typical Application Circuit. When connected to the V2P8 pin, the I I CHARGE shorted to GND. Under this exception, I ISL6298 in the 3x3 DFN package, the IMIN pin is connected internally to the V2P8 pin. EOC Conditions The EOC indication is asserted when the following conditions are satisfied simultaneously: 1 ...

Page 12

... ISL6298 of a charge cycle when the battery voltage is at its minimum but the charge current is at its maximum. The charge current thermal foldback function in the ISL6298 frees users from the over-heating concern. Figure 22 shows the typical charge curves in a charge cycle, using a constant voltage input ...

Page 13

... Fault *Both outputs are pulled up with external resistors. Shutdown The ISL6298 can be shutdown by pulling the EN pin to ground. When shut down, the charger draws typically less than 30µA current from the input power and less than 3µA current from the battery. The 2.8V output at the V2P8 pin is also turned off ...

Page 14

... R are the NTC thermistor resistance COLD HOT R COLD ≥ ------------------- - 7.08 R HOT , EQ. 7 can be re COLD 7. HOT can be calculated using U R 7.08R – COLD HOT ------------------------------------------------------ 6.08 ⋅ 1.012 COLD V2P8 R U TEMP ISL6298 GND (EQ. 9) (EQ. 10) (EQ. 11) (EQ. 12) FN9173.4 March 9, 2006 ...

Page 15

... ISL6292 datasheet available at http://www.intersil.com. (EQ. 13) Board Layout Recommendations The ISL6298 internal thermal foldback function limits the charge current when the internal temperature reaches approximately 100°C. In order to maximize the current capability very important that the exposed pad under the package is properly soldered to the board and is connected to other layers through thermal vias ...

Page 16

... PLANE (DATUM B) D2 INDEX AREA (DATUM N (Nd-1)Xe REF. BOTTOM VIEW 0.415 NX (b) (A1) 5 SECTION "C-C" 16 ISL6298 2X L10.3x3 0. LEAD DUAL FLAT NO-LEAD PLASTIC PACKAGE 2X 0. SYMBOL 0. 0. NOTES: 1. Dimensioning and tolerancing conform to ASME Y14.5-1994 the number of terminals refers to the number of terminals on D. ...

Page 17

... 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 17 ISL6298 L16.4x4 16 LEAD QUAD FLAT NO-LEAD PLASTIC PACKAGE (COMPLIANT TO JEDEC MO-220-VGGC ISSUE C) ...

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