MCP73862 Microchip Technology Inc., MCP73862 Datasheet

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MCP73862

Manufacturer Part Number
MCP73862
Description
Advanced Single Or Dual Cell, Fully Integrated Li-ion / Li-polymer Charge Management Controllers
Manufacturer
Microchip Technology Inc.
Datasheet

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
MCP73862-I/ML
Manufacturer:
MICROCHIP/微芯
Quantity:
20 000
Part Number:
MCP73862-I/SL
Manufacturer:
IR
Quantity:
2 000
Part Number:
MCP73862T-I/ML
Manufacturer:
Microchip Technology
Quantity:
1 500
Features
• Linear Charge Management Controllers
• High-Accuracy Preset Voltage Regulation: + 0.5%
• Four Selectable Voltage Regulation Options:
• Programmable Charge Current: 1.2A Maximum
• Programmable Safety Charge Timers
• Preconditioning of Deeply Depleted Cells
• Automatic End-of-Charge Control
• Optional Continuous Cell Temperature Monitoring
• Charge Status Output for Direct LED Drive
• Fault Output for Direct LED Drive
• Automatic Power-Down
• Thermal Regulation
• Temperature Range: -40°C to +85°C
• Packaging: 16-Pin, 4 x 4 QFN
Applications
• Lithium-Ion/Lithium-Polymer Battery Chargers
• Personal Data Assistants (PDAs)
• Cellular Telephones
• Hand-Held Instruments
• Cradle Chargers
• Digital Cameras
• MP3 Players
Package Types
© 2005 Microchip Technology Inc.
- Integrated Pass Transistor
- Integrated Current Sense
- Reverse-Blocking Protection
- 4.1V, 4.2V – MCP73861/3
- 8.2V, 8.4V – MCP73862/4
Advanced Single or Dual Cell, Fully Integrated Li-Ion /
16-Pin QFN
Li-Polymer Charge Management Controllers
16-Pin SOIC
V
V
V
V
DD1
DD2
SET
SS1
1
2
3
4
16
5
MCP73861
MCP73862
MCP73863
MCP73864
15
6
14
7
13
8
12
10
11
9
V
V
V
V
BAT3
BAT2
BAT1
SS3
MCP73861/2/3/4
16-Pin SOIC
Description
The MCP7386X family of devices are highly advanced
linear charge management controllers for use in space-
limited, cost-sensitive applications. The devices com-
bine high-accuracy, constant voltage and current regu-
lation, cell preconditioning, cell temperature monitoring,
advanced safety timers, automatic charge termination,
internal current sensing, reverse-blocking protection,
charge status and fault indication in either a space-
saving 16-pin, 4 x 4 QFN or 16-pin SOIC package. The
MCP7386X provides a complete, fully-functional, stand-
alone charge management solution with a minimum
number of external components.
The MCP73861/3 is intended for applications utilizing
single-cell Lithium-Ion or Lithium-Polymer battery
packs, while the MCP73862/4 is intended for dual
series cell Lithium-Ion or Lithium-Polymer battery
packs. The MCP73861/3 have two selectable voltage-
regulation options available (4.1V and 4.2V), for use
with either coke or graphite anodes and operate with an
input voltage range of 4.5V to 12V. The MCP73862/4
have two selectable voltage-regulation options avail-
able (8.2V and 8.4V), for use with coke or graphite
anodes, and operate with an input voltage range of
8.7V to 12V.
The only difference between the MCP73861/2 and
MCP73863/4, respectively, is the function of the charge
status output (STAT1) when a charge cycle has been
completed. The MCP73861/2 flash the output, while
the MCP73863/4 turn the output off. Refer to
Section 5.2.1
(STAT1,STAT2)”.
The MCP7386X family of devices are fully specified
over the ambient temperature range of -40°C to +85°C.
THREF
STAT2 1
STAT1
PROG
“Charge
V
V
V
V
DD1
DD2
SET
SS1
2
3
4
5
6
7
8
Status
DS21893C-page 1
16
15
14
13
12
11
10
9
EN
V
V
V
V
V
TIMER
THERM
SS2
BAT3
BAT2
BAT1
SS3
Outputs

Related parts for MCP73862

MCP73862 Summary of contents

Page 1

... The MCP73861/3 have two selectable voltage- regulation options available (4.1V and 4.2V), for use with either coke or graphite anodes and operate with an input voltage range of 4.5V to 12V. The MCP73862/4 have two selectable voltage-regulation options avail- able (8.2V and 8.4V), for use with coke or graphite anodes, and operate with an input voltage range of 8 ...

Page 2

... And Status Logic Oscillator Single + Lithium-Ion – Cell V BAT1 V BAT2 BAT3 Precondition 600 k Comp. + (1. – 148.42 k Values reflect the MCP73862/4 + devices – 1. REF 300. SET 10.3 k (8. SS1 V SS2 V SS3 STAT1 Drv Stat 1 STAT2 Drv Stat 2 Charge_OK © 2005 Microchip Technology Inc. ...

Page 3

... Low-to-High DD V MCP73861/3 V MCP73862/4 V High-to-Low DD V MCP73861/ SET SS V MCP73861/ SET DD V MCP73862/ SET SS V MCP73862/ SET (typ.) + 1V], DD REG OUT T = -5°C to +55° (typ.)+1V] to 12V DD REG OUT % I ...

Page 4

... Conditions s mA PROG = OPEN mA PROG = PROG = 1 =-5°C to +55° MCP73861/ SET SS V MCP73861/ SET DD V MCP73862/ SET SS V MCP73862/ SET DD V Low-to-High BAT mA PROG = OPEN mA PROG = PROG = 1 =-5°C to +55° MCP73861/3 ...

Page 5

... DD REG Parameters Temperature Ranges Specified Temperature Range Operating Temperature Range Storage Temperature Range Thermal Package Resistances Thermal Resistance, 16-lead QFN Thermal Resistance, 16-lead SOIC © 2005 Microchip Technology Inc REG = [V (typ.) + 1.0V] DD REG Min Typ Max — 155 — ...

Page 6

... MCP73861 SET 5.2V DD 100 1000 Charge Current (mA) Supply Current ( OUT MCP73861 SET 1000 mA OUT 6.0 7.5 9.0 10.5 12.0 Supply Voltage (V) Supply Current ( MCP73861 SET OUT 6.0 7.5 9.0 10.5 12.0 Supply Voltage (V) Supply Current ( © 2005 Microchip Technology Inc. ...

Page 7

... Therm. Bias Current (µA) FIGURE 2-9: Thermistor Reference Voltage (V ) vs. Thermistor Bias Current THREF (I ). THREF © 2005 Microchip Technology Inc. MCP73861/2/3 (typ and T REG OUT 1.60 MCP73861/3 V 1.40 SET +85°C OUT 1.20 +25° ...

Page 8

... Supply Voltage (V) FIGURE 2-15: Battery Regulation Voltage (V ) vs. Supply Voltage (V ). BAT DD DS21893C-page (typ and T REG OUT 1.00 MCP73862 0.90 SET V = 9.4V DD 0.80 0.70 0.60 0.50 0.40 10 1000 FIGURE 2-16: Charge Current (I 1.60 MCP73862/4 V 1.40 SET I = 1000 mA OUT 1.20 1.00 0.80 0.60 0.40 11.6 12.0 9.0 FIGURE 2-17: Supply Voltage (V 1.00 MCP73862/4 V 0.90 SET OUT 0.80 0.70 0.60 0.50 0.40 9.0 11.5 12.0 FIGURE 2-18: Supply Voltage (V = +25°C, Constant-voltage mode. ...

Page 9

... DD 2.550 2.546 2.542 2.538 2.534 2.530 FIGURE 2-24: Voltage (V THREF = +25°C, Constant-voltage mode Ambient Temperature (°C) Supply Current ( MCP73862 SET OUT Ambient Temperature (°C) Battery Regulation Voltage ). A MCP73862 SET 100 µA THREF Ambient Temperature (°C) Thermistor Reference ) vs ...

Page 10

... X7R, Ceramic OUT Line Transient Response µF, X7R, Ceramic V BAT I 500 mA OUT 10 mA Load Transient Response. MCP73861 100 mVp 100 mA OUT X7R, Ceramic OUT 0 100 1000 Frequency (kHz) Power Supply Ripple © 2005 Microchip Technology Inc. ...

Page 11

... MCP73861/2/3 1000 SET DD 800 600 400 200 0 OPEN 4.8k 1.6k Programming Resistor ( ) FIGURE 2-31: Charge Current (I Programming Resistor (R ). PROG © 2005 Microchip Technology Inc (typ and T REG OUT 505 MCP73861/2/3/4 V 503 R 501 499 497 495 493 536 0 ) vs. FIGURE 2-32: OUT ...

Page 12

... STAT1 3.1 Voltage Regulation Selection (V ) SET MCP73861/3: Connect for 4.1V regulation SET SS voltage, connect to V for 4.2V regulation voltage. DD MCP73862/4: Connect for 8.2V regulation SET SS voltage, connect to V for 8.4V regulation voltage. DD 3.2 Battery Management Input Supply ( DD2 DD1 A supply voltage of [V (typ.) + 0.3V] to 12V is REG recommended ...

Page 13

... Microchip Technology Inc. MCP73861/2/3/4 MCP73862/4 regulate to 4.1V and 8.2V, respectively. With V tied to V SET MCP73862/4 regulate to 4.2V and 8.4V, respectively. 4.4 Charge Cycle Completion and Automatic Re-Charge The MCP7386X monitors the charging current during the Constant-voltage regulation mode. The charge cycle is considered complete when the charge current ...

Page 14

... MCP73861/2/3/4 FIGURE 4-2: Operational Flow Algorithm. DS21893C-page 14 © 2005 Microchip Technology Inc. ...

Page 15

... The temperature-sensing circuit is removed from the system when V is not applied, eliminating additional DD discharge of the battery pack. © 2005 Microchip Technology Inc. MCP73861/2/3/4 Figure 6-1 depicts a typical application circuit with connection of the THERM input. The resistor values of R and R ...

Page 16

... The V input selects the regulated output voltage of SET the MCP7386X. With V MCP73861/3 and MCP73862/4 regulate to 4.1V and 8.2V, respectively. With V MCP73861/3 and MCP73862/4 regulate to 4.2V and 8.4V, respectively. 5.2.3 LOGIC ENABLE (EN) STAT2 The logic enable input pin (EN) can be used to terminate a charge at any time during the charge cycle, ...

Page 17

... Transition Threshold (V ) PTH Precondition Current (I ) PREG Termination Current (I ) TERM Precondition Safety Timer FIGURE 6-2: Typical Charge Profile. © 2005 Microchip Technology Inc. MCP73861/2/3/4 Constant-current Figure 6-1 depicts a typical stand-alone application circuit, while Figures 6-2 accompanying charge profile. STAT1 EN V SS2 SET ...

Page 18

... Preconditioning mode to the Constant-current mode. In this case, the power dissipation is: PowerDissipation Where the maximum input voltage DDMAX I = the maximum fast charge current REGMAX V = the minimum transition threshold PTHMIN voltage . – DDMAX PTHMIN REGMAX © 2005 Microchip Technology Inc. ...

Page 19

... Two status outputs provide information on the state of charge. The current-limited, open-drain outputs can be used to illuminate external LEDs. Refer to Table 5-1 for a summary of the state of the status outputs during a charge cycle. © 2005 Microchip Technology Inc. MCP73861/2/3/4 6.2 PCB Layout Issues For optimum voltage regulation, place the battery pack = 1 ...

Page 20

... 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. DS21893C-page 20 Example 73861 0532 256 Example: MCP73861 e I/SL^^ 3 0532256 © 2005 Microchip Technology Inc. ...

Page 21

... Exposed pad varies according to die attach paddle size. BSC: Basic Dimension. Theoretically exact value shown without tolerances. See ASME Y14.5M REF: Reference Dimension, usually without tolerance, for information purposes only. See ASME Y14.5M JEDEC equivalent: M0-220 Drawing No. C04-127 © 2005 Microchip Technology Inc. EXPOSED METAL PAD (NOTE ...

Page 22

... E .228 .237 .244 E1 .150 .154 .157 D .386 .390 .394 h .010 .015 .020 L .016 .033 .050 .008 .009 .010 B .013 .017 .020 MILLIMETERS MIN NOM MAX 16 1.27 1.35 1.55 1.75 1.32 1.44 1.55 0.10 0.18 0.25 5.79 6.02 6.20 3.81 3.90 3.99 9.80 9.91 10.01 0.25 0.38 0.51 0.41 0.84 1. 0.20 0.23 0.25 0.33 0.42 0. © 2005 Microchip Technology Inc. ...

Page 23

... Added MCP73863 and MCP73864 devices throughout data sheet. 2. Added Appendix A: Revision History. 3. Updated QFN and SOIC package diagrams. Revision B (December 2004) • Added SOIC package throughout data sheet. Revision A (June 2004) • Original Release of this Document. © 2005 Microchip Technology Inc. MCP73861/2/3/4 DS21893C-page 23 ...

Page 24

... MCP73861/2/3/4 NOTES: DS21893C-page 24 © 2005 Microchip Technology Inc. ...

Page 25

... MCP73861-I/SL: Single-Cell Controller 16LD-SOIC package. d) MCP73861T-I/SL: Tape and Reel, Single-Cell Controller 16LD-SOIC package. a) MCP73862-I/ML: Dual-Cell Controller 16LD-QFN package. b) MCP73862T-I/ML: Tape and Reel, Dual-Cell Controller 16LD-QFN package. c) MCP73862-I/SL: Dual-Cell Controller 16LD-SOIC package. d) MCP73862T-I/SL: Tape and Reel, Dual-Cell Controller 16LD-SOIC package. a) MCP73863-I/ML: Single-Cell Controller 16LD-QFN package ...

Page 26

... MCP73861/2/3/4 NOTES: DS21893C-page 26 © 2005 Microchip Technology Inc. ...

Page 27

... Use of Microchip’s products as critical components in life support systems is not authorized except with express written approval by Microchip. No licenses are conveyed, implicitly or otherwise, under any Microchip intellectual property rights. © 2005 Microchip Technology Inc. Trademarks The Microchip name and logo, the Microchip logo, Accuron, dsPIC ...

Page 28

... 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 © 2005 Microchip Technology Inc. EUROPE Austria - Weis Tel: 43-7242-2244-399 Fax: 43-7242-2244-393 Denmark - Copenhagen Tel: 45-4450-2828 Fax: 45-4485-2829 France - Paris ...

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