IC LI-ION/LI-POLY CTRLR SOT23-5

MCP73832T-2DCI/OT

Manufacturer Part NumberMCP73832T-2DCI/OT
DescriptionIC LI-ION/LI-POLY CTRLR SOT23-5
ManufacturerMicrochip Technology
MCP73832T-2DCI/OT datasheet
 

Specifications of MCP73832T-2DCI/OT

Battery TypeLithium-Ion (Li-Ion), Lithium-Polymer (Li-Pol)FunctionCharge Management
Voltage - Supply3.75 V ~ 6 VOperating Temperature-40°C ~ 85°C
Mounting TypeSurface MountPackage / CaseSC-74A, SOT-753
Input Voltage6VBattery Charge Voltage4.2V
Charge Current Max500mABattery Ic Case StyleSOT-23
No. Of Pins5No. Of Series Cells1
Output Voltage4.2 VOutput Current10 mA
Operating Supply Voltage3.75 V to 6 VMaximum Operating Temperature+ 85 C
Minimum Operating Temperature- 40 CMounting StyleSMD/SMT
Lead Free Status / RoHS StatusLead free / RoHS CompliantFor Use WithTC110DM - BOARD EVAL BATT CHARGER TC110
Other namesMCP73832T-2DCI/OT
MCP73832T-2DCI/OTTR
  
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Miniature Single-Cell, Fully Integrated Li-Ion,
Li-Polymer Charge Management Controllers
Features
• Linear Charge Management Controller:
- Integrated Pass Transistor
- Integrated Current Sense
- Reverse Discharge Protection
• High Accuracy Preset Voltage Regulation: + 0.75%
• Four Voltage Regulation Options:
- 4.20V, 4.35V, 4.40V, 4.50V
• Programmable Charge Current: 15 mA to 500 mA
• Selectable Preconditioning:
- 10%, 20%, 40%, or Disable
• Selectable End-of-Charge Control:
- 5%, 7.5%, 10%, or 20%
• Charge Status Output
- Tri-State Output - MCP73831
- Open-Drain Output - MCP73832
• Automatic Power-Down
• Thermal Regulation
• Temperature Range: -40°C to +85°C
• Packaging:
- 8-Lead, 2 mm x 3 mm DFN
- 5-Lead, SOT-23
Applications
• Lithium-Ion/Lithium-Polymer Battery Chargers
• Personal Data Assistants
• Cellular Telephones
• Digital Cameras
• MP3 Players
• Bluetooth Headsets
• USB Chargers
Typical Application
500 mA Li-Ion Battery Charger
V
IN
4
3
V
V
DD
BAT
4.7 μF
4.7 μF
5
PROG
470Ω
1
2
V
STAT
SS
MCP73831
© 2008 Microchip Technology Inc.
MCP73831/2
Description:
The MCP73831/2 devices are highly advanced linear
charge management controllers for use in space-lim-
ited, cost-sensitive applications. The MCP73831/2 are
available in an 8-Lead, 2 mm x 3 mm DFN package or
a 5-Lead, SOT-23 package. Along with their small
physical size, the low number of external components
required make the MCP73831/2 ideally suited for
portable applications. For applications charging from a
USB port, the MCP73831/2 adhere to all the
specifications governing the USB power bus.
The MCP73831/2 employ a constant-current/constant-
voltage charge algorithm with selectable precondition-
ing and charge termination. The constant voltage
regulation is fixed with four available options: 4.20V,
4.35V, 4.40V or 4.50V, to accommodate new, emerging
battery charging requirements. The constant current
value is set with one external resistor. The MCP73831/
2 devices limit the charge current based on die temper-
ature during high power or high ambient conditions.
This thermal regulation optimizes the charge cycle time
while maintaining device reliability.
Several options are available for the preconditioning
threshold, preconditioning current value, charge
termination value and automatic recharge threshold.
The preconditioning value and charge termination
value are set as a ratio, or percentage, of the
programmed constant current value. Preconditioning
can be disabled. Refer to Section 1.0 “Electrical
Characteristics” for available options and the “Prod-
uct Identification System” for standard options.
The MCP73831/2 devices are fully specified over the
ambient temperature range of -40°C to +85°C.
Package Types
MCP73831/2
2×3 DFN*
V
1
DD
+
Single
V
2
EP
DD
Li-Ion
-
Cell
9
V
3
BAT
V
4
BAT
2 kΩ
* Includes Exposed Thermal Pad (EP); see
MCP73831/2
SOT-23-5
PROG
STAT
1
5
8
PROG
2
V
NC
7
SS
V
3
4
V
DD
6
V
BAT
SS
5 STAT
Table
3-1.
DS21984E-page 1

MCP73832T-2DCI/OT Summary of contents

  • Page 1

    ... V STAT SS MCP73831 © 2008 Microchip Technology Inc. MCP73831/2 Description: The MCP73831/2 devices are highly advanced linear charge management controllers for use in space-lim- ited, cost-sensitive applications. The MCP73831/2 are available in an 8-Lead DFN package or a 5-Lead, SOT-23 package. Along with their small ...

  • Page 2

    ... V BAT 477 kΩ 255 kΩ 100 kΩ DS21984E-page 2 43.6 kΩ 361 kΩ 3.9 kΩ kΩ PRECONDITION 182.3 kΩ kΩ - TERMINATION + - 7 kΩ CHARGE 190 kΩ + SHDN - DIRECTION + CONTROL - + UVLO - V BAT CA + MCP73831 ONLY - V DD STAT © 2008 Microchip Technology Inc. ...

  • Page 3

    ... REG Regulation Note 1: Not production tested. Ensured by design. © 2008 Microchip Technology Inc. † Notice: Stresses above those listed under “Maximum Ratings” may cause permanent damage to the device. This is a stress rating only and functional operation of the device at those or any other conditions above those indicated in the operational listings of this specification is not implied ...

  • Page 4

    ... T = 105° µA PROG Floating µA V Floating DD µA V < STOP µA Charge Complete SINK (MCP73831) SOURCE µA High-Impedance kΩ kΩ 3.5V ≤ V ≤ V BAT REG V Falling DD 3.5V ≤ V ≤ V BAT BAT REG V Rising DD °C °C © 2008 Microchip Technology Inc. ...

  • Page 5

    ... Thermal Package Resistances 5-Lead, SOT-23 8-Lead mm, DFN Note 1: This represents the minimum copper condition on the PCB (Printed Circuit Board). With large copper area on the PCB, the SOT-23-5 thermal resistance ( θ 2: 130°C/W or better. © 2008 Microchip Technology Inc (typical) + 1.0V] DD REG Min. Typ. ...

  • Page 6

    ... MCP73831/2 NOTES: DS21984E-page 6 © 2008 Microchip Technology Inc. ...

  • Page 7

    ... Battery Regulation Voltage (V) FIGURE 2-3: Output Leakage Current (I ) vs. Battery Regulation Voltage DISCHARGE (V ). BAT © 2008 Microchip Technology Inc (typical and T REG OUT 500 MCP73831-2 450 OUT 400 350 300 = 100 mA OUT 250 ...

  • Page 8

    ... FIGURE 2-12: OUT Rejection (PSRR). = +25°C, Constant-Voltage mode kΩ PROG Junction Temperature (°C) Charge Current (I ) vs. OUT ). J = 4.7 µF, X7R Ceramic 0 100 1000 Frequency (kHz) Power Supply Ripple 0 100 1000 Frequency (kHz) Power Supply Ripple © 2008 Microchip Technology Inc. ...

  • Page 9

    ... Line Transient Response. 0.35 0.30 0.25 0.20 0.15 0.10 0.05 0. 4.7 µF, X7R Ceramic OUT -0.05 Time (µs) FIGURE 2-15: Load Transient Response. © 2008 Microchip Technology Inc (typical and T REG OUT 0.10 1.40 0.05 1.20 0.00 1.00 -0.05 0.80 -0.10 0.60 -0 ...

  • Page 10

    ... MCP73831/2 NOTES: DS21984E-page 10 © 2008 Microchip Technology Inc. ...

  • Page 11

    ... STAT is an output for connection to an LED for charge status indication. Alternatively, a pull-up resistor can be applied for interfacing to a host microcontroller. STAT is a tri-state logic output on the MCP73831 and an open-drain output on the MCP73832. © 2008 Microchip Technology Inc. Table 3-1. Function Battery Management Input Supply ...

  • Page 12

    ... MCP73831/2 NOTES: DS21984E-page 12 © 2008 Microchip Technology Inc. ...

  • Page 13

    ... In the event a battery is present when the input power is applied, the input supply must rise 150 mV above the battery voltage before the MCP73831/2 becomes oper- ational. © 2008 Microchip Technology Inc. The UVLO circuit places the device in Shutdown mode depicts the if the input supply falls to within + the battery voltage ...

  • Page 14

    ... FIGURE 4-2: 4.9 Thermal Shutdown The MCP73831/2 suspend charge if the die tempera- ture exceeds 150°C. Charging will resume when the die temperature has cooled by approximately 10° kΩ PROG Junction Temperature (°C) Thermal Regulation. © 2008 Microchip Technology Inc. ...

  • Page 15

    ... P-channel MOSFET. The MCP73831/2 provide constant current and voltage regulation to the battery pack by controlling this MOSFET in the linear region. The battery charge control output should be connected to the positive terminal of the battery pack. © 2008 Microchip Technology Inc. MCP73831/2 5.2 Digital Circuitry 5.2.1 ...

  • Page 16

    ... MCP73831/2 NOTES: DS21984E-page 16 © 2008 Microchip Technology Inc. ...

  • Page 17

    ... Selection of the external components in crucial to the integrity and reliability of the charging system. The following discussion is intended as a guide for the component selection process. © 2008 Microchip Technology Inc. cells constant current followed by constant voltage. Figure 6-1 depicts a typical stand-alone application circuit, while accompanying charge profile ...

  • Page 18

    ... PCB, thus reducing the maximum junction temperature. typical layout with PCB heatsinking. pin This SS FIGURE 6-4: FIGURE 6-5: Charge Inhibit Charge Status Interface and V pins. BAT SS Figures 6-4 and 6-5 depict a Typical Layout (Top). Typical Layout (Bottom). © 2008 Microchip Technology Inc. ...

  • Page 19

    ... Note: Applies to 8-Lead DFN Device Code MCP73831T-2ACI/OT KDNN MCP73831T-2ATI/OT KENN MCP73831T-2DCI/OT KFNN MCP73831T-3ACI/OT KGNN MCP73831T-4ADI/OT KHNN MCP73831T-5ACI/OT KJNN MCP73832T-2ACI/OT KKNN MCP73832T-2ATI/OT KLNN MCP73832T-2DCI/OT KMNN MCP73832T-3ACI/OT KPNN MCP73832T-4ADI/OT KQNN MCP73832T-5ACI/OT KRNN MCP73832T-2DFI/OT LUNN Note: Applies to 5-Lead SOT-23 MCP73831/2 Example: AAE 739 25 Example: KD25 e ...

  • Page 20

    ... MCP73831 NOTE TOP VIEW A3 DS21984E-page EXPOSED PAD BOTTOM VIEW A NOTE NOTE © 2008 Microchip Technology Inc. ...

  • Page 21

    ... Microchip Technology Inc. MCP73831/2 DS21984E-page 21 ...

  • Page 22

    ... MCP73831 DS21984E-page φ © 2008 Microchip Technology Inc. ...

  • Page 23

    ... Numerous edits throughout document. 2. Added note to Temperature Specifications table. 3. Updated Figure 2-4. Revision B (March 2006) The following is the list of modifications: 1. Added MCP73832 through document. Revision A (November 2005) • Original Release of this Document. © 2008 Microchip Technology Inc. Added and added MCP73831/2 DS21984E-page 19 ...

  • Page 24

    ... MCP73831/2 NOTES: DS21984E-page 20 © 2008 Microchip Technology Inc. ...

  • Page 25

    ... Options AD, 5LD SOT23 Pkg MCP73831T-4ADI/OT: Tape and Reel, 4.40V V , Options AD, 5LD SOT23 Pkg REG MCP73832-4ADI/MC: 4.40V V , REG Options AD, 8LD DFN Package MCP73832T-4ADI/MC: Tape and Reel, 4.40V V , Options AD, 8LD DFN Package REG MCP73831-5ACI/OT: 4.50V V , REG Options AC, 5LD SOT23 Pkg MCP73831T-5ACI/OT: Tape and Reel, 4 ...

  • Page 26

    ... MCP73831/2 NOTES: DS21984E-page 22 © 2008 Microchip Technology Inc. ...

  • Page 27

    ... PowerMate, PowerTool, REAL ICE, rfLAB, Select Mode, Total Endurance, WiperLock and ZENA are trademarks of Microchip Technology Incorporated in the U.S.A. and other countries. SQTP is a service mark of Microchip Technology Incorporated in the U.S.A. All other trademarks mentioned herein are property of their respective companies. ...

  • Page 28

    ... Fax: 886-3-572-6459 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 © 2008 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 Tel: 33-1-69-53-63-20 ...