MCP73832T-2ACI/OT Microchip Technology Inc., MCP73832T-2ACI/OT Datasheet

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MCP73832T-2ACI/OT

Manufacturer Part Number
MCP73832T-2ACI/OT
Description
TINY INTEGRATED LI-ION/LI-POLY CHARGE MGNT CONTROLLER, 4.2V VREG
Manufacturer
Microchip Technology Inc.
Datasheet

Specifications of MCP73832T-2ACI/OT

Lead Free Status / Rohs Status
RoHS Compliant part Electrostatic Device

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Features:
• Linear Charge Management Controller:
• High Accuracy Preset Voltage Regulation: + 0.75%
• Four Voltage Regulation Options:
• Programmable Charge Current
• Selectable Preconditioning
• Selectable End-of-Charge Control
• Charge Status Output
• Automatic Power-Down
• Thermal Regulation
• Temperature Range: -40°C to +85°C
• Packaging:
Applications:
• Lithium-Ion/Lithium-Polymer Battery Chargers
• Personal Data Assistants
• Cellular Telephones
• Digital Cameras
• MP3 Players
• Bluetooth Headsets
• USB Chargers
Typical Application
© 2006 Microchip Technology Inc.
4.7 F
- Integrated Pass Transistor
- Integrated Current Sense
- Reverse Discharge Protection
- 4.20V, 4.35V, 4.40V, 4.50V
- Tri-State Output - MCP73831
- Open-Drain Output - MCP73832
- 8-Lead, 2 mm x 3 mm DFN
- 5-Lead, SOT23
V
IN
470
500 mA Li-Ion Battery Charger
Miniature Single-Cell, Fully Integrated Li-Ion,
Li-Polymer Charge Management Controllers
4
1
V
STAT
MCP73831
DD
PROG
V
V
BAT
SS
4.7 F
3
5
2
2 k
+
-
Single
Li-Ion
Cell
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, SOT23 package. Along with their small
physical size, the low number of external components
required make the MCP73831/2 ideally suited for por-
table 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, emerg-
ing battery charging requirements. The constant cur-
rent value is set with one external resistor. The
MCP73831/2 devices limit 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 reliability.
Several options are available for the preconditioning
threshold, preconditioning current value, charge termi-
nation 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 dis-
abled. Refer to Section 1.0 “Electrical Characteris-
tics” for available options and the “Product
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
STAT
V
V
BAT
SS
1
2
3
SOT23-5
5
4
PROG
V
DD
V
V
V
V
BAT
BAT
(2 mm x 3 mm)
DD
DD
8-Lead DFN
1
2
3
4
DS21984B-page 1
8
7
6
5
PROG
NC
V
STAT
SS

Related parts for MCP73832T-2ACI/OT

MCP73832T-2ACI/OT Summary of contents

Page 1

... V STAT SS MCP73831 © 2006 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, SOT23 package. Along with their small ...

Page 2

... DIRECTION CONTROL G=0.001 6 mA 0.5 mA PROG REFERENCE GENERATOR V (1.22V) REF 111 k 111 k 0 BAT 477 k 255 k 100 DS21984B-page 2 43.6 k 361 k 3 PRECONDITION 182 TERMINATION + - 7 k CHARGE 190 k + SHDN - DIRECTION + CONTROL - + UVLO - V BAT CA + MCP73831 ONLY - V DD STAT © 2006 Microchip Technology Inc. ...

Page 3

... REG Regulation Note 1: Not production tested. Ensured by design. © 2006 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

... BAT % PROG = 2 PROG = 2 PROG = 2 PROG = 2 -5°C to +55° High-to-Low BAT % V High-to-Low BAT 3.75V 105° PROG Floating A V Floating < STOP A Charge Complete SINK (MCP73831) SOURCE A High-Impedance BAT REG V Falling DD 3. BAT BAT REG V Rising © 2006 Microchip Technology Inc. ...

Page 5

... Electrical Specifications: Unless otherwise indicated, all limits apply for V Typical values are at +25° Parameters Temperature Ranges Specified Temperature Range Operating Temperature Range Storage Temperature Range Thermal Package Resistances 5-Lead, SOT23 8-Lead mm, DFN © 2006 Microchip Technology Inc (typ.) + 1.0V] DD REG Min. Typ. Max. Units — — ...

Page 6

... Programming Resistor (kΩ) Charge Current (I ) vs. OUT ). PROG = 10 k Ω R PROG 4.75 5.00 5.25 5.50 5.75 6.00 Supply Voltage (V) Charge Current (I ) vs. OUT ). kΩ PROG 4.75 5.00 5.25 5.50 5.75 6.00 Supply Voltage (V) Charge Current (I ) vs. OUT ). DD © 2006 Microchip Technology Inc. ...

Page 7

... Ambient Temperature (°C) FIGURE 2-8: Charge Current (I Ambient Temperature ( 120 105 Junction Temperature (°C) FIGURE 2-9: Charge Current (I Junction Temperature ( © 2006 Microchip Technology Inc (typ and T REG OUT 525 = 10 k Ω R PROG 450 375 300 225 150 vs. FIGURE 2-10: OUT Junction Temperature ( Ω ...

Page 8

... C = 4.7 µF, X7R Ceramic OUT -0.30 Time (µs) Load Transient Response. 120 100 5. Ω PROG 0 Time (minutes) Complete Charge Cycle 600 500 400 300 200 100 = 2 k Ω 0 Time (minutes) Complete Charge Cycle © 2006 Microchip Technology Inc. ...

Page 9

... 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. © 2006 Microchip Technology Inc. Function Battery Management Input Supply Battery Management Input Supply Battery Charge Control Output ...

Page 10

... V the regulation voltage, V pin, the BAT programming resistor must the PROG pin is SS pin is less than the precondi- BAT pin rises above the BAT . Constant-Current mode is SS pin reaches BAT . REG © 2006 Microchip Technology Inc. ...

Page 11

... The recharge threshold is factory set. Refer to Section 1.0 “Electrical Char- acteristics” for recharge threshold options and the Product Identification System for standard options. © 2006 Microchip Technology Inc. MCP73831/2 4.8 Thermal Regulation The MCP73831/2 limit the charge current based on the die temperature ...

Page 12

... Placing a programming resistor from the PROG input to V enables the device. Allowing the PROG input to SS float or by applying a logic-high input signal, disables the device and terminates a charge cycle. When disabled, the device’s supply current is reduced typically. © 2006 Microchip Technology Inc. Hi-Z Hi Hi-Z ...

Page 13

... Selection of the external components in Figure 6-1 is crucial to the integrity and reliability of the charging system. The following discussion is intended as a guide for the component selection process. © 2006 Microchip Technology Inc. cells constant current followed by constant voltage. Figure 6-1 depicts a typical stand-alone application circuit, ...

Page 14

... Figures 6-4 and 6-5 depict a typical layout with PCB heatsinking. pin This BAT FIGURE 6- BAT FIGURE 6-5: Charge Inhibit Charge Status Interface and V BAT R LED LED R PROG C MCP73831 C V OUT IN DD Typical Layout (Top Typical Layout (Bottom). © 2006 Microchip Technology Inc. SS ...

Page 15

... AAR MCP73832T-5ACI/MC AAS 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 Note: Applies to 5-Lead SOT-23 MCP73831/2 Example: AAE 610 25 ...

Page 16

... D2 MILLIMETERS* MIN NOM MAX 8 0.50 BSC 0.80 0.90 1.00 0.00 0.02 0.05 0.20 REF. 2.00 BSC 3.00 BSC 1.30** – 1.75 1.50** – 1.90 0.30 0.40 0.50 0.20 – – 0.20 0.25 0.30 Revised 09-12-05 © 2006 Microchip Technology Inc. ...

Page 17

... Lead Width Mold Draft Angle Top Mold Draft Angle Bottom * Controlling Parameter Notes: Dimensions D and E1 do not include mold flash or protrusions. Mold flash or protrusions shall not exceed .005" (0.127mm) per side. EIAJ Equivalent: SC-74A Drawing No. C04-091 © 2006 Microchip Technology Inc ...

Page 18

... MCP73831/2 NOTES: DS21984B-page 18 © 2006 Microchip Technology Inc. ...

Page 19

... APPENDIX A: REVISION HISTORY Revision B (March 2006) • Added MCP73832 through document. Revision A (November 2005) • Original Release of this Document. © 2006 Microchip Technology Inc. MCP73831/2 DS21984B-page 19 ...

Page 20

... MCP73831/2 NOTES: DS21984B-page 20 © 2006 Microchip Technology Inc. ...

Page 21

... 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 22

... MCP73831/2 NOTES: DS21984B-page 22 © 2006 Microchip Technology Inc. ...

Page 23

... 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. © 2006 Microchip Technology Inc. Trademarks The Microchip name and logo, the Microchip logo, Accuron, dsPIC, K ...

Page 24

... 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 © 2006 Microchip Technology Inc. EUROPE Austria - Wels Tel: 43-7242-2244-399 Fax: 43-7242-2244-393 Denmark - Copenhagen Tel: 45-4450-2828 Fax: 45-4485-2829 France - Paris Tel: 33-1-69-53-63-20 ...

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