ISL6292EVAL2Z Intersil, ISL6292EVAL2Z Datasheet

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ISL6292EVAL2Z

Manufacturer Part Number
ISL6292EVAL2Z
Description
EVALUATION BOARD FOR ISL6292
Manufacturer
Intersil
Series
-r
Datasheet

Specifications of ISL6292EVAL2Z

Main Purpose
Power Management, Battery Charger
Embedded
No
Utilized Ic / Part
ISL6292 QFN
Primary Attributes
-
Secondary Attributes
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Li-ion/Li Polymer Battery Charger
The ISL6292 is an integrated single-cell Li-ion or Li-polymer
battery charger capable of operating with an input voltage as
low as 2.4V. This charger is designed to work with various
types of AC adapters or a USB port.
The ISL6292 operates as a linear charger when the AC
adapter is a voltage source. The battery is charged in a
CC/CV (constant current/constant voltage) profile. The
charge current is programmable with an external resistor up
to 2A. The ISL6292 can also work with a current-limited
adapter to minimize the thermal dissipation, in which case,
the ISL6292 combines the benefits of both a linear charger
and a pulse charger.
The ISL6292 features charge current thermal foldback to
guarantee safe operation when the printed circuit board is
space limited for thermal dissipation. Additional features
include preconditioning of an over-discharged battery, an
NTC thermistor interface for charging the battery in a safe
temperature range, automatic recharge, and thermally
enhanced QFN or DFN packages.
Pinouts
STATUS
FAULT
STATUS
FAULT
TIME
GND
VIN
TIME
VIN
1
2
3
4
5
1
2
3
4
(16 LD QFN)
(10 LD DFN)
16
5
TOP VIEW
TOP VIEW
ISL6292
ISL6292
¬
15
6
1
14 13
7
8
Data Sheet
12
11
10
10
9
9
8
7
6
VBAT
TEMP
IMIN
IREF
VBAT
TEMP
IREF
V2P8
EN
1-888-INTERSIL or 1-888-468-3774
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
Features
• Complete Charger for Single-Cell Li-ion Batteries
• Very Low Thermal Dissipation
• Integrated Pass Element and Current Sensor
• No External Blocking Diode Required
• 1% Voltage Accuracy
• Programmable Current Limit up to 2A
• Programmable End-of-Charge Current
• Charge Current Thermal Foldback
• NTC Thermistor Interface for Battery Temperature Monitor
• Accepts Multiple Types of Adapters or USB BUS Power
• Guaranteed to Operate at 2.65V After Start-Up
• Ambient Temperature Range: -20°C to +70°C
• Thermally-Enhanced QFN Packages
• Handheld Devices, including Medical Handhelds
• PDAs, Cell Phones and Smart Phones
• Portable Instruments, MP3 Players
• Self-Charging Battery Packs
• Stand-Alone Chargers
• USB Bus-Powered Chargers
• Pb-Free Available (RoHS Compliant)
Related Literature
• Technical Brief TB363 “Guidelines for Handling and
• Technical Brief TB379 “Thermal Characterization of
• Technical Brief TB389 “PCB Land Pattern Design and
December 17, 2007
Processing Moisture Sensitive Surface Mount Devices
(SMDs)”
Packaged Semiconductor Devices”
Surface Mount Guidelines for QFN Packages”
All other trademarks mentioned are the property of their respective owners.
|
Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright Intersil Americas Inc. 2003-2007. All Rights Reserved
ISL6292
FN9105.9

Related parts for ISL6292EVAL2Z

ISL6292EVAL2Z Summary of contents

Page 1

... CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures. 1-888-INTERSIL or 1-888-468-3774 All other trademarks mentioned are the property of their respective owners. ISL6292 FN9105.9 | Intersil (and design registered trademark of Intersil Americas Inc. Copyright Intersil Americas Inc. 2003-2007. All Rights Reserved ...

Page 2

... 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. ...

Page 3

... QFN Package (Notes 3x3 DFN Package (Notes 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 = 5V and +25°C Ambient Temperature, maximum and minimum values are IN SYMBOL TEST CONDITIONS ...

Page 4

Electrical Specifications Typical values are tested at V guaranteed over 0°C to +70°C Ambient Temperature with a supply voltage in the range of 4.3V to 6.5V, unless otherwise noted. (Continued) PARAMETER TRICKLE CHARGE THRESHOLD Trickle Charge Threshold Voltage TEMPERATURE MONITORING ...

Page 5

Typical Operating Performance 4.30 CHARGE CURRENT = 50mA 4.25 4.20 4.15 4.10 4.2 4.5 4.8 5.1 5.4 V (V) IN FIGURE 3. CHARGER OUTPUT VOLTAGE vs INPUT VOLTAGE CHARGE CURRENT = 50mA 1.6 1.4 1.5A 1.2 1.0 1.0A 0.8 0.6 ...

Page 6

Typical Operating Performance 700 THERMAL FOLDBACK STARTS 650 NEAR +100°C 600 550 500 450 400 3x3 DFN 350 300 250 200 TEMPERATURE (°C) FIGURE TEMPERATURE AT 3.7V OUTPUT DS(ON) 1.8 1.6 1.4 1.2 ...

Page 7

Typical Operating Performance FIGURE 15. STATUS/FAULT PIN VOLTAGE vs CURRENT WHEN THE OPEN-DRAIN MOSFET TURNS ON Pin Descriptions VIN (Pin 1, 15, 16 for 4x4, 5x5; Pin 1 for 3x3) VIN is the input power source. Connect to a wall ...

Page 8

Typical Applications Typical Application Circuit For 4x4 or 5x5 QFN Package Options 5V Wall Adapter μ ISL6292 VIN VBAT TOEN 1k Ω 1k Ω ISL6292 TEMP FAULT ...

Page 9

Typical Applications (Continued) Typical Application Circuit For 3x3 DFN Package Option 5V Wall Adapter μ VIN C 1 Temperature Monitoring IREF R IREF References IMIN I MIN R IMIN I SEN V2P8 TEMP Interface TOEN TIME ...

Page 10

Theory of Operation The ISL6292 is an integrated charger for single-cell Li-ion or Li-polymer batteries. The ISL6292 functions as a traditional linear charger when powered with a voltage-source adapter. When powered with a current-limited adapter, the charger minimizes the thermal ...

Page 11

When using a current-limited adapter, the thermal situation in the ISL6292 is totally different. Figure 18 shows the typical charge curves when a current-limited adapter is employed. The operation requires the programmed higher REF than the limited ...

Page 12

The following events initiate a new charge cycle: • POR, • a new battery being inserted (detected by TEMP pin), • the battery voltage drops below a recharge threshold after completing a charge cycle, • recovery from an battery over-temperature ...

Page 13

End-of-Charge (EOC) Current The end-of-charge current I sets the level at which the MIN charger starts to indicate the end of the charge with the STATUS pin, as shown in Figure 19. The charger actually does not terminate charging until ...

Page 14

The actual accuracy of the 2.8V is not important because all the thresholds and the TEMP pin voltage are ratios determined by the resistor dividers, as shown in Figure 22. The NTC ...

Page 15

TABLE 2. STATUS INDICATIONS FAULT STATUS INDICATION High Low Charging in one of the three modes Low High Fault *Both outputs are pulled up with external resistors. Input and Output Capacitor Selection Typically any type of capacitors can be used ...

Page 16

Adapter Charger DS(ON) ADAPTER PACK I LIM CELL Battery Pack FIGURE 25A. THE EQUIVALENT CIRCUIT IN THE CONSTANT CURRENT REGION FIGURE 25. THE EQUIVALENT CIRCUIT OF THE CHARGING SYSTEM WORKING WITH CURRENT LIMITED ADAPTERS ...

Page 17

PACK Charge Current Power Const. Cur Constant Voltage FIGURE 27A. FIGURE 27. THE OPERATING CURVES WITH THREE DIFFERENT CURRENT LIMITED ADAPTERS IREF Programming Using Current-Limited Adapter The ISL6292 has 10% tolerance for the charge current. Typically the ...

Page 18

... Dimensions D2 and E2 are for the exposed pads which provide NX b improved electrical and thermal performance Nominal dimensions are provided to assist with PCB Land 0. Pattern Design efforts, see Intersil Technical Brief TB389. 0.200 FOR ODD TERMINAL/SIDE MILLIMETERS MIN ...

Page 19

... 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. Features and dimensions A2, A3, D1, E1, P & θ are present when Anvil singulation method is used and not present for saw singulation ...

Page 20

... 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 ...

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