MCP73113 Microchip Technology Inc., MCP73113 Datasheet

MCP73113

Manufacturer Part Number

MCP73113

Description

Single-cell Li-ion / Li-polymer Battery Charge Management Controller With Input Overvoltage Protection

Manufacturer

Microchip Technology Inc.

Datasheet

1.MCP73113.pdf (34 pages)

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Download datasheet (548Kb)

Single-Cell Li-Ion / Li-Polymer Battery Charge Management

Features

• Complete Linear Charge Management Controller:

• Constant Current / Constant Voltage Operation

• 4.15V Undervoltage Lockout (UVLO)

• 18V Absolute Maximum Input with OVP: 6.5V

• High Accuracy Preset Voltage Regulation Through

• Battery Charge Voltage Options:

• Resistor Programmable Fast Charge Current:

• Preconditioning of Deeply Depleted Cells

• Integrated Precondition Timer:

• Automatic End-of-Charge Control:

• Automatic Recharge:

• Charge Status Output - Two Style Options

• Soft start

• Temperature Range: -40°C to +85°C

• Packaging:

Applications

• Low-Cost Li-Ion/Li-Poly Battery Chargers

• MP3 Players

• Digital Still Camera

• Portable Media Players

• Handheld Devices

• Bluetooth Headsets

• USB Chargers

- Integrated Input Overvoltage Protection

- Integrated Pass Transistor

- Integrated Current Sense

- Integrated Reverse Discharge Protection

with Thermal Regulation

Full Temperature Range (-5°C to 55°C): + 0.5%

- 4.10V, 4.20V, 4.35V or 4.4V

- 60 mA - 1000 mA

- Available Options: 10% or Disable

- 32 Minutes or Disable

- Selectable Minimum Current Ratio:

- Elapse Safety Timer: 4 HR, 6 HR, 8 HR or

- Available Options: 95% or Disable

- DFN-10 (3 mm x 3 mm)

5%, 7.5%, 10% or 20%

Disable

Controller with Input Overvoltage Protection

Description

The MCP73113 is a highly integrated Li-Ion battery

charge management controller for use in space-limited

and cost-sensitive applications. The MCP73113

provides specific charge algorithms for Li-Ion / Li-Poly-

mer batteries to achieve optimal capacity and safety in

the shortest charging time possible. Along with its small

physical size, the low number of external components

makes the MCP73113 ideally suitable for portable

applications. The absolute maximum voltage, up to

18V, allows the use of MCP73113 in harsh

environments, such as low cost wall wart or voltage

spikes from plug/unplug.

The MCP73113 employs a constant current / constant

voltage charge algorithm. The various charging voltage

regulations provide design engineers flexibility to use in

different applications. The fast charge, constant current

value is set with one external resistor from 60 mA to

1000 mA. The MCP73113 limits the charge current

based on die temperature during high power or high

ambient conditions. This thermal regulation optimizes

the charge cycle time while maintaining device reliabil-

ity.

The PROG pin of the MCP73113 also serves as enable

pin. When high impedance is applied, the MCP73113

will be in standby mode.

The MCP73113 is fully specified over the ambient tem-

perature range of -40°C to +85°C. The MCP73113 is

available in a 10 lead, DFN package.

Package Types (Top View)

* Includes Exposed Thermal Pad (EP); see

MCP73113

BAT

NC 5

MCP73113

3x3 DFN *

7 STAT

6 NC

PROG

DS22183A-page 1

Table

3-1.

Related parts for MCP73113

MCP73113 Summary of contents

Page 1

... This thermal regulation optimizes the charge cycle time while maintaining device reliabil- ity. The PROG pin of the MCP73113 also serves as enable pin. When high impedance is applied, the MCP73113 will be in standby mode. The MCP73113 is fully specified over the ambient tem- perature range of -40° ...

Page 2

... Customers should contact their distributor, representatives or field application engineer (FAE) for support and sample. Local sales offices are also available to help customers. A listing of sales offices and locations is included in the back of this document. Technical support is available through the web site at: http//support.microchip.com DS22183A-page 2 MCP73113 Typical Application ...

Page 3

... Charge Charge Control, STAT Timer, and Status Logic Input OverVP Thermal Regulation © 2009 Microchip Technology Inc. (1.21V Precondition + Term - + - 6. 110 ° MCP73113 VO REG V BAT Current Limit + V - REF 95 REG + V BAT *Recharge *Only available on selected options DS22183A-page 3 ...

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... MCP73113 (Typical) + 0.3V] to 6V, Units Conditions V V µA Shutdown (V < 150 mV) DD BAT µA Charging µA Standby (PROG Floating) µA Charge Complete; No Battery; V < STOP µA Standby (PROG Floating) µ ...

Page 6

... MCP73113 DC CHARACTERISTICS (Continued) Electrical Specifications: Unless otherwise indicated, all limits apply for -40°C to +85°C. Typical values are at +25° Parameters Sym Battery Short Protection BSP Start Threshold V SHORT BSP Hysteresis V BSPHYS BSP Regulation Current I SHORT Current Regulation (Fast Charge, Constant-Current Mode) ...

Page 7

... Min Typ Max T -40 — + -40 — +125 J T -65 — +150 A θ — 60 — JA MCP73113 (Typical)+0.3V] to 6V, T =-40°C to +85°C. A Units Conditions — Hours Timer Disabled 4.4 Hours 6.6 Hours 8.8 Hours — Hours Disabled Timer 0.6 Hours µ SINK ...

Page 8

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... FIGURE 2-5: Programming Resistor (R 950 930 910 890 870 850 830 810 790 R PROG T 770 A 750 4 FIGURE 2-6: ). Supply Voltage (V A MCP73113 = +25°C, Constant-voltage mode 150 mA LOAD = 5. Ambient Temperature (°C) Battery Regulation Voltage ). 5. +25°C A Programming Resistor (kΩ) Charge Current ( ...

Page 10

... MCP73113 TYPICAL PERFORMANCE CURVES (CONTINUED) Note: Unless otherwise indicated 675 655 635 615 595 575 555 535 515 kΩ PROG 495 T = +25 °C A 475 4.5 4.8 5.1 5.4 Supply Voltage (V) FIGURE 2-7: Charge Current (I Programming Resistor (R ). PROG 350 330 310 290 270 250 230 ...

Page 11

... R PROG 0.5 875 mAh Battery 0 FIGURE 2-16: (875 mAh Li-Ion Battery. FIGURE 2-17 mA, Output: 1.0V/Div, LOAD Source: 2.0V/Div). FIGURE 2-18 100 mA, Output: 1.0V/Div, LOAD Source: 2.0V/Div). MCP73113 = +25°C, Constant-voltage mode 0.9 0.8 0.7 0.6 0.5 0.4 0.3 0 kΩ 0 105 120 Time (Minutes) Complete Charge Cycle ...

Page 12

Page 13

... PROG pin is rated with 6V absolute maximum value. PROG pin also serves as charge control enable. When a typical 200 kΩ impedance is applied to PROG pin, the MCP73113 is disabled until the high imped- ance is removed. Refer to Section 5.5 “Constant Current MODE - Fast Charge” for details. 3.7 ...

Page 14

Page 15

... DEVICE OVERVIEW The MCP73113 are simple, but fully integrated linear charge management controllers. operational flow algorithm. V < OVP V > OVP V > OVP OVERVOLTAGE PROTECTION No Charge Current STAT = Hi-Z Timer Suspended V < OVP V > OVP V < OVP Die Temperature < ...

Page 16

Page 17

... The preconditioning threshold is factory set. Refer to Section 1.0 “Electrical Charac- teristics” for preconditioning threshold options. In this mode, the MCP73113 device supplies 10% of the fast charge current (established with the value of the resistor connected to the PROG pin) to the battery. When the voltage at the V conditioning threshold, the MCP73113 device enters the constant current (fast charge) mode ...

Page 18

... Note: The MCP73113 also offer options with no 1.60K automatic recharge. 1.60K For the MCP73113 device with no recharge option, the MCP73113 will go into standby mode when termination 1.50K condition is met. The charge will not restart until follow- 1.30K ing condition has met: 1.30K • ...

Page 19

... THERMAL REGULATION The MCP73113 shall limit the charge current based on the die temperature. The thermal regulation optimizes the charge cycle time while maintaining device reliabil- ity. Figure 5-1 depicts the thermal regulation for the MCP73113 device. Refer to Section 1.0 “Electrical Characteristics” for thermal package resistances and Section 6.1.1.2 “ ...

Page 20

Page 21

... APPLICATIONS The MCP73113 is designed to operate in conjunction with a host microcontroller or in stand-alone applica- tions. The MCP73113 provides the preferred charge algorithm for Lithium-Ion and Lithium-Polymer cells Ac-dc Adapter C IN FIGURE 6-1: Typical Application Circuit. 5.0 4.5 4.0 3.5 3.0 2.5 2.0 1.5 1 kΩ PROG 0.5 875 mAh Battery 0 Time (Minutes) ...

Page 22

... This power dissipation with the battery charger in the DFN-10 package will result approximately 63°C above room temperature. 6.1.1.3 External Capacitors The MCP73113 is stable with or without a battery load. In order to maintain good AC stability in the Constant- voltage mode, a minimum capacitance of 1 µF is recommended to bypass the V pin to V ...

Page 23

... PCB, thus reducing the maximum junction temperature. Figure 6-4 and Figure 6-5 a typical layout with PCB heatsinking. FIGURE 6-3: Typical Layout (Top). FIGURE 6-4: Typical Layout (Top Metal). © 2009 Microchip Technology Inc. and V pins, SS depict FIGURE 6-5: MCP73113 Typical Layout (Bottom). DS22183A-page 23 ...

Page 24

Page 25

... 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. © 2009 Microchip Technology Inc. Standard * Part Number Code MCP73113-06SI/MF 93HI MCP73113-16SI/MF 83HI MCP73113 Example: 93HI 0920 256 DS22183A-page 25 ...

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... Microchip Technology Inc. MCP73113 PP %RG\ >')1@ DS22183A-page 27 ...

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Page 31

... Microchip Technology Inc. MCP73113 . Examples: a) MCP73113-06SI/MF: Single Cell Li-Ion/Li- Polymer Battery Device b) MCP73113-16SI/MF: Single Cell Li-Ion/Li- Polymer Battery Device c) MCP73113T-06SI-MF: Tape and Reel, Single Cell Li-Ion/Li- Polymer Battery Device d) MCP73113T-16SI/MF: Tape and Reel, Single Cell Li-Ion/Li- Polymer Battery Device DS22183A-page 31 ...

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Page 33

... Microchip from any and all damages, claims, suits, or expenses resulting from such use. No licenses are conveyed, implicitly or otherwise, under any Microchip intellectual property rights. © 2009 Microchip Technology Inc. Trademarks The Microchip name and logo, the Microchip logo, Accuron, dsPIC, K ...

Page 34

... Taiwan - Kaohsiung Tel: 886-7-536-4818 Fax: 886-7-536-4803 Taiwan - Taipei Tel: 886-2-2500-6610 Fax: 886-2-2508-0102 Thailand - Bangkok Tel: 66-2-694-1351 Fax: 66-2-694-1350 © 2009 Microchip Technology Inc. EUROPE Austria - Wels Tel: 43-7242-2244-39 Fax: 43-7242-2244-393 Denmark - Copenhagen Tel: 45-4450-2828 Fax: 45-4485-2829 France - Paris ...

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