MCP73828-4.1VUATR Microchip Technology, MCP73828-4.1VUATR Datasheet

IC CONTROLLR LI-ION 4.1V 8-MSOP

MCP73828-4.1VUATR

Manufacturer Part Number
MCP73828-4.1VUATR
Description
IC CONTROLLR LI-ION 4.1V 8-MSOP
Manufacturer
Microchip Technology
Datasheet

Specifications of MCP73828-4.1VUATR

Function
Charge Management
Battery Type
Lithium-Ion (Li-Ion)
Voltage - Supply
4.5 V ~ 5.5 V
Operating Temperature
-20°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
Output Voltage
4.141 V
Operating Supply Voltage
4.5 V to 5.5 V
Supply Current
560 mA
Maximum Operating Temperature
+ 85 C
Minimum Operating Temperature
- 20 C
Mounting Style
SMD/SMT
Uvlo Start Threshold
113 mV
Uvlo Stop Threshold
839 mV
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
MCP738284.1VUATR

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
MCP73828-4.1VUATR
Manufacturer:
Microchip Technology
Quantity:
500
Features
• Linear Charge Management Controller for Single
• High Accuracy Preset Voltage Regulation:
• Two Preset Voltage Regulation Options:
• Programmable Charge Current
• Automatic Cell Preconditioning of Deeply
• Charge Complete Output CD10 for LED or
• Continuous Temperature Monitoring
• Automatic Power-Down when Input Power
• Temperature Range: -20°C to +85°C
• Packaging: 8-Pin MSOP
Applications
• Single Cell Lithium-Ion Battery Chargers
• Personal Data Assistants
• Cellular Telephones
• Hand Held Instruments
• Cradle Chargers
• Digital Cameras
Typical Application Circuit
M
with Charge Complete Indicator and Temperature Monitor
V
5V
Lithium-Ion Cells
- 4.1V - MCP73828-4.1
- 4.2V - MCP73828-4.2
Depleted Cells, Minimizing Heat Dissipation
During Initial Charge Cycle
Microcontroller Interface
Removed
2002 Microchip Technology Inc.
IN
MA2Q705
Single Cell Lithium-Ion Charge Management Controller
+1% (max)
10 µF
332
100 k
500 mA Lithium-Ion Battery Charger
100 m
8
1
4
SHDN
CD10
V
IN
MCP73828
V
7
SNS
NDS8434
THERM
V
6
GND
DRV
V
BAT
5
2
3
10 µF
Thermistor
+
-
Single
Lithium-Ion
Cell
Description
The MCP73828 is a linear charge management con-
troller for use in space-limited, cost sensitive applica-
tions. The MCP73828 combines high accuracy
constant voltage, controlled current regulation, cell pre-
conditioning, cell temperature monitoring, and charge
complete indication in a space saving 8-pin MSOP
package. The MCP73828 provides a stand-alone
charge management solution.
The MCP73828 charges the battery in three phases:
preconditioning, controlled current, and constant volt-
age. If the battery voltage is below the internal low-volt-
age threshold, the battery is preconditioned with a
foldback current. The preconditioning phase protects
the lithium-ion cell and minimizes heat dissipation.
Following the preconditioning phase, the MCP73828
enters the controlled current phase. The MCP73828
allows for design flexibility with a programmable charge
current set by an external sense resistor. The charge
current is ramped up, based on the cell voltage, from
the foldback current to the peak charge current estab-
lished by the sense resistor. This phase is maintained
until the battery reaches the charge-regulation voltage.
Then, the MCP73828 enters the final phase, constant
voltage. The accuracy of the voltage regulation is better
than ±1% over the entire operating temperature range
and supply voltage range. The MCP73828-4.1 is preset
to a regulation voltage of 4.1V, while the MCP73828-
4.2 is preset to 4.2V. The charge complete output,
CD10, indicates when the charge current has dimin-
ished to approximately 10% of the peak charge current
established by the sense resistor.
The MCP73828 operates with an input voltage range
from 4.5V to 5.5V. The MCP73828 is fully specified
over the ambient temperature range of -20°C to +85°C.
Package Type
MSOP
MCP73828
THERM
SHDN 1
CD10
GND
2
3
4
MCP73828
8
7
6
5
DS21706A-page 1
V
V
V
V
DRV
BAT
IN
SNS

Related parts for MCP73828-4.1VUATR

MCP73828-4.1VUATR Summary of contents

Page 1

... The accuracy of the voltage regulation is better than ±1% over the entire operating temperature range and supply voltage range. The MCP73828-4.1 is preset to a regulation voltage of 4.1V, while the MCP73828- 4.2 is preset to 4.2V. The charge complete output, CD10, indicates when the charge current has dimin- ished to approximately 10% of the peak charge current established by the sense resistor ...

Page 2

... MCP73828 Functional Block Diagram DS21706A-page 2 2002 Microchip Technology Inc. ...

Page 3

... Expo- sure to maximum rating conditions for extended periods may affect device reliability. DC CHARACTERISTICS: MCP73828-4.1, MCP73828-4.2 Unless otherwise specified, all limits apply for V Typical values are at +25°C. Refer to Figure 1-1 for test circuit. Parameter ...

Page 4

... Parameters Temperature Ranges Specified Temperature Range Operating Temperature Range Storage Temperature Range Package Thermal Resistance Thermal Resistance, 8L-MSOP V = 5.1V IN (MCP73828-4. 5. µF (MCP73828-4.2) 100 k FIGURE 1-1: MCP73828 Test Circuit. DS21706A-page (typ)+1V 500 REG SENSE Sym Min Typ Max I 22.5 25.0 27.5 THERM V — ...

Page 5

... FIGURE 2-5: 350 OUT 325 300 275 250 225 200 5.3 5.4 5.5 4.5 4.6 FIGURE 2-6: MCP73828 200 400 600 800 1000 Output Current (mA) Supply Current vs. Output Current 1000 mA OUT 4.7 4.8 4.9 5.0 5.1 5.2 5.3 5.4 5 ...

Page 6

... FIGURE 2-10: Supply Current vs. Temperature. 4.206 4.204 4.202 4.200 o -20 C 4.198 4.196 4.194 4.192 4.190 -20 4.0 4.5 FIGURE 2-11: Output (MCP73828-4.2). 4.5 4.0 3.5 3.0 2.5 2.0 1.5 1.0 0.5 0.0 100 120 0 1 FIGURE 2-12: Power-Up / Power-Down ...

Page 7

... Note: Unless otherwise indicated, I OUT FIGURE 2-13: Line Transient Response. FIGURE 2-14: Line Transient Response. 2002 Microchip Technology Inc mA, Constant Voltage Mode, T =25°C. Refer to Figure 1-1 for test circuit. A FIGURE 2-15: Load Transient Response. FIGURE 2-16: Load Transient Response. MCP73828 DS21706A-page 7 ...

Page 8

... MCP73828 3.0 PIN DESCRIPTION The descriptions of the pins are listed in Table 3-1. Pin Name Description 1 SHDN Logic Shutdown 2 GND Battery Management 0V Reference 3 THERM Cell Temperature Monitor 4 CD10 Charge Complete Output 5 V Cell Voltage Monitor Input BAT 6 V Drive Output DRV 7 V Charge Current Sense Input ...

Page 9

... DEVICE OVERVIEW The MCP73828 is a linear charge management con- troller. Refer to the functional block diagram on page 2 and the typical application circuit, Figure 6-1. 4.1 Charge Qualification and Preconditioning Upon insertion of a battery or application of an external supply, the MCP73828 automatically performs a series of safety checks to qualify the charge ...

Page 10

... OUT amps. The preconditioning current is scaled to approximately 43 5.1.5 SUPPLY VOLTAGE (V The V input is the input supply to the MCP73828. The ) is 113 MCP73828 automatically enters a power-down mode if the voltage on the V the V pin. This feature prevents draining the battery ...

Page 11

... APPLICATIONS The MCP73828 is designed to operate in conjunction with a host microcontroller or in stand-alone applica- tions. The MCP73828 provides the preferred charge algorithm for Lithium-Ion cells, controlled current fol- MA2Q705 10 µF 332 22 k VOLTAGE REGULATED WALL CUBE THERM 100 FIGURE 6-1: Typical Application Circuit. ...

Page 12

... MCP73828 6.1 Application Circuit Design Due to the low efficiency of linear charging, the most important factors are thermal design and cost, which are a direct function of the input voltage, output current and thermal impedance between the external P-chan- nel pass transistor, Q1, and the ambient cooling air. ...

Page 13

... The Fairchild NDS8434 and International Rectifier IRF7404 both satisfy these requirements. 6.1.1.3 EXTERNAL CAPACITORS The MCP73828 is stable with or without a battery load. In order to maintain good AC stability in the constant voltage mode, a minimum capacitance of 10 µF is rec- ommended to bypass the V pin to GND. This capac- ...

Page 14

... MCP73828 6.1.1.7 CHARGE COMPLETE INTERFACE The charge complete indicator, CD10, can be utilized to illuminate an LED when the MCP73828 is charging the battery. When the MCP73828 is in constant voltage mode and the charge current has diminished below 10 the CD10 pin will transition to a high OUT(PEAK) impedance state ...

Page 15

... Standard OTP marking consists of Microchip part number, year code, week code, and traceability code. 2002 Microchip Technology Inc. Example: Part Number Code MCP73828-4.1VUA 738281 MCP73828-4.2VUA 738282 MCP73828 738281 YWWNNN DS21706A-page 15 ...

Page 16

... MCP73828 8-Lead Plastic Micro Small Outline Package (MSOP (F) Dimension Limits Number of Pins Pitch Overall Height Molded Package Thickness Standoff § Overall Width Molded Package Width Overall Length Foot Length Footprint (Reference) Foot Angle Lead Thickness Lead Width Mold Draft Angle Top ...

Page 17

... Conferences for products, Development Systems, technical information and more • Listing of seminars and events 2002 Microchip Technology Inc. MCP73828 Systems Information and Upgrade Hot Line The Systems Information and Upgrade Line provides system users a listing of the latest versions of all of Microchip's development systems software products. ...

Page 18

... Telephone: (_______) _________ - _________ Application (optional): Would you like a reply? Y Device: MCP73828 Questions: 1. What are the best features of this document? 2. How does this document meet your hardware and software development needs you find the organization of this data sheet easy to follow? If not, why? 4 ...

Page 19

... To order or obtain information, e.g., on pricing or delivery, refer to the factory or the listed sales office. PART NO. -X.X Device Output Temperature Voltage Range Device: MCP73828: Linear Charge Management Controller Output Voltage: 4.1 = 4.1V 4.2 = 4.2V Temperature Range -20°C to +85°C Package Plastic Micro Small Outline (MSOP), 8-lead ...

Page 20

... MCP73828 NOTES: DS21706A-page 20 2002 Microchip Technology Inc. ...

Page 21

... NOTES: 2002 Microchip Technology Inc. MCP73828 DS21706A-page21 ...

Page 22

... MCP73828 NOTES: DS21706A-page 22 2002 Microchip Technology Inc. ...

Page 23

... Serialized Quick Term Programming (SQTP service mark of Microchip Technology Incorporated in the U.S.A. All other trademarks mentioned herein are property of their respective companies. © 2002, Microchip Technology Incorporated, Printed in the U.S.A., All Rights Reserved. Printed on recycled paper. Microchip received QS-9000 quality system ...

Page 24

... Korea Microchip Technology Korea 168-1, Youngbo Bldg. 3 Floor Samsung-Dong, Kangnam-Ku Seoul, Korea 135-882 Tel: 82-2-554-7200 Fax: 82-2-558-5934 Singapore Microchip Technology Singapore Pte Ltd. 200 Middle Road #07-02 Prime Centre Singapore, 188980 Tel: 65-6334-8870 Fax: 65-6334-8850 Taiwan Microchip Technology Taiwan 11F-3, No. 207 ...

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