MCP73826-4.1VCHTR Microchip Technology, MCP73826-4.1VCHTR Datasheet

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MCP73826-4.1VCHTR

Manufacturer Part Number
MCP73826-4.1VCHTR
Description
IC,Battery Management,CMOS,TSOP,6PIN,PLASTIC
Manufacturer
Microchip Technology
Datasheet

Specifications of MCP73826-4.1VCHTR

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
SOT-23-6
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
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Lead Free Status / RoHS Status
Lead free / RoHS Compliant, Lead free / RoHS Compliant
Other names
MCP738264.1VCHTR

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
MCP73826-4.1VCHTR
Manufacturer:
Microchip Technology
Quantity:
4 850
Part Number:
MCP73826-4.1VCHTR
Manufacturer:
MICROCHIP/微芯
Quantity:
20 000
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
• Automatic Power-Down when Input Power
• Temperature Range: -20°C to +85°C
• Packaging: 6-Pin SOT-23A
Applications
• Single Cell Lithium-Ion Battery Chargers
• Personal Data Assistants
• Cellular Telephones
• Hand Held Instruments
• Cradle Chargers
• Digital Cameras
Typical Application Circuit
M
V
5V
Lithium-Ion Cells
- 4.1V - MCP73826-4.1
- 4.2V - MCP73826-4.2
Depleted Cells, Minimizing Heat Dissipation Dur-
ing Initial Charge Cycle
Removed
IN
2002 Microchip Technology Inc.
10 µF
Single Cell Lithium-Ion Charge Management Controller
MA2Q705
+1% (max)
100 k
500 mA Lithium-Ion Battery Charger
100 m
5
1
V
SHDN
V
IN
MCP73826
6
SNS
NDS8434
V
4
GND
DRV
V
BAT
3
2
10 µF
+
-
Single
Lithium-Ion
Cell
Description
The MCP73826 is a linear charge management con-
troller for use in space-limited, cost sensitive applica-
tions. The MCP73826 combines high accuracy
constant voltage, controlled current regulation, and cell
preconditioning in a space saving 6-pin SOT-23A pack-
age. The MCP73826 provides a stand-alone charge
management solution.
The MCP73826 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 MCP73826
enters the controlled current phase. The MCP73826
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 MCP73826 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 MCP73826-4.1 is preset
to a regulation voltage of 4.1V, while the MCP73826-
4.2 is preset to 4.2V.
The MCP73826 operates with an input voltage range
from 4.5V to 5.5V. The MCP73826 is fully specified
over the ambient temperature range of -20°C to +85°C.
Package Type
6-Pin SOT-23A
MCP73826
SHDN 1
GND
V
BAT
2
3
MCP73826
6
5
4
DS21705A-page 1
V
V
V
SNS
IN
DRV

Related parts for MCP73826-4.1VCHTR

MCP73826-4.1VCHTR 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 MCP73826-4.1 is preset to a regulation voltage of 4.1V, while the MCP73826- 4.2 is preset to 4.2V. The MCP73826 operates with an input voltage range from 4.5V to 5.5V. The MCP73826 is fully specified over the ambient temperature range of -20° ...

Page 2

... MCP73826 Functional Block Diagram DS21705A-page 2 2002 Microchip Technology Inc. ...

Page 3

... Exposure to maximum rating conditions for extended peri- ods may affect device reliability. DC CHARACTERISTICS: MCP73826-4.1, MCP73826-4.2 Unless otherwise specified, all limits apply for V Typical values are at +25°C. Refer to Figure 1-1 for test circuit. ...

Page 4

... MCP73826 V = 5.1V IN (MCP73826-4. 5.2V IN (MCP73826-4.2) 22 µF FIGURE 1-1: MCP73826 Test Circuit. DS21705A-page 4 NDS8434 R SENSE SNS DRV BAT IN 100 k 1 GND SHDN MCP73826 I OUT V OUT 3 22 µF 2 2002 Microchip Technology Inc. ...

Page 5

... FIGURE 2-3: Output Voltage vs. Input Voltage (MCP73826-4.2). 2002 Microchip Technology Inc mA, Constant Voltage Mode 25°C. Refer to Figure 1-1 for test circuit. A FIGURE 2-4: FIGURE 2-5: FIGURE 2-6: MCP73826 Supply Current vs. Output Current. Supply Current vs. Input Voltage. Supply Current vs. Input Voltage. DS21705A-page 5 ...

Page 6

... Output Reverse Leakage Current vs. Output Voltage. FIGURE 2-9: Current Limit Foldback. DS21705A-page mA, Constant Voltage Mode 25°C. Refer to Figure 1-1 for test circuit. A FIGURE 2-10: Supply Current vs. Temperature. FIGURE 2-11: Output (MCP73826-4.2). FIGURE 2-12: Power-Up / Power-Down. Voltage vs. Temperature 2002 Microchip Technology Inc. ...

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 25°C. Refer to Figure 1-1 for test circuit. A FIGURE 2-15: Load Transient Response. FIGURE 2-16: Load Transient Response. MCP73826 DS21705A-page 7 ...

Page 8

... MCP73826 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 Cell Voltage Monitor Input V BAT 4 V Drive Output DRV 5 V Battery Management IN Input Supply 6 V Charge Current Sense Input ...

Page 9

... MCP73826 verifies the state of the SHDN pin. The SHDN pin must be above the logic high level. If the SHDN pin is above the logic high level, the MCP73826 initiates a charge cycle. If the cell is below the preconditioning threshold, 2.4V typically, the MCP73826 preconditions the cell with a scaled back current ...

Page 10

... V BAT 5.1.3 SUPPLY VOLTAGE ( The V input is the input supply to the MCP73826. The IN MCP73826 automatically enters a power-down mode if the voltage on the V input falls below the voltage on IN the pin. This feature prevents draining the battery V BAT pack when the V supply is not present ...

Page 11

... APPLICATIONS The MCP73826 is designed to operate in conjunction with a host microcontroller or in stand-alone applica- tions. The MCP73826 provides the preferred charge VOLTAGE REGULATED WALL CUBE MA2Q705 µF SHDN GND V 100 k FIGURE 6-1: Typical Application Circuit. PRECONDITIONING PHASE REGULATION VOLTAGE (V ) REG REGULATION CURRENT ...

Page 12

... MCP73826 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 MCP73826 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 pin to GND. This capac- ...

Page 14

... In the event the full Microchip part number cannot be marked on one line, it will be carried over to the next line thus limiting the number of available characters for customer specific information. DS21705A-page 14 6-Pin SOT-23A (EIAJ SC-74) Device Part Number Code MCP73826-4.1VCH CN MCP73826-4.2VCH CP 2002 Microchip Technology Inc. ...

Page 15

... TR Suffix Device (Mark Right Side Up) Pitch (P) Part Per Full Reel 4 mm .075 (1.90) REF. .069 (1.75) .059 (1.50) .037 (0.95) REF. .118 (3.00) .010 (2.80) 10° MAX. .024 (0.60) .004 (0.10) MCP73826 W Reel Size 3000 7 in. .008 (0.20) .004 (0.09) DS21705A-page 15 ...

Page 16

... MCP73826 NOTES: DS21705A-page 16 2002 Microchip Technology Inc. ...

Page 17

... Conferences for products, Development Systems, technical information and more • Listing of seminars and events 2002 Microchip Technology Inc. MCP73826 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: MCP73826 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

... Register on our web site (www.microchip.com/cn) to receive the most current information on our products. 2002 Microchip Technology Inc. X XXXX Examples: Package a) b) MCP73826 MCP73826-4.1VCHTR: Linear Charge Man- agement Controller, 4.1V, Tape and Reel. MCP73826-4.2VCHTR: Linear Charge Man- agement Controller, 4.2V, Tape and Reel. DS21705A-page19 ...

Page 20

... MCP73826 NOTES: DS21705A-page 20 2002 Microchip Technology Inc. ...

Page 21

... NOTES: 2002 Microchip Technology Inc. MCP73826 DS21705A-page21 ...

Page 22

... MCP73826 NOTES: DS21705A-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: 65-334-8870 Fax: 65-334-8850 Taiwan Microchip Technology Taiwan 11F-3, No. 207 ...

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