MCP73844T-820I/MS Microchip Technology, MCP73844T-820I/MS Datasheet

IC CONTROLLER LI-ION 8.2V 8MSOP

MCP73844T-820I/MS

Manufacturer Part Number
MCP73844T-820I/MS
Description
IC CONTROLLER LI-ION 8.2V 8MSOP
Manufacturer
Microchip Technology
Datasheet

Specifications of MCP73844T-820I/MS

Function
Charge Management
Battery Type
Lithium-Ion (Li-Ion), Lithium-Polymer (Li-Pol)
Voltage - Supply
8.7 V ~ 12 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
Output Voltage
8.241 V
Output Current
10 mA
Operating Supply Voltage
8.7 V to 12 V
Supply Current
4 mA
Maximum Operating Temperature
+ 85 C
Minimum Operating Temperature
- 40 C
Mounting Style
SMD/SMT
Uvlo Start Threshold
8.90 V
Uvlo Stop Threshold
8.85 V
For Use With
MCP7383XRD-PPM - REFERENCE DESIGN PWR-PTH MCP7383MCP7384XEV - KIT EVALUATION FOR MCP7384X
Lead Free Status / RoHS Status
Lead free / RoHS Compliant

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
MCP73844T-820I/MS
Manufacturer:
MICROCHIP
Quantity:
1 200
Features
• Linear Charge Management Controllers
• High-Accuracy Preset Voltage Regulation:
• Four Preset Voltage Regulation Options:
• Programmable Charge Current
• Programmable Safety Charge Timers
• Preconditioning of Deeply Depleted Cells
• Automatic End-of-Charge Control
• Optional Continuous Cell Temperature
• Charge Status Output for Direct LED Drive
• Automatic Power-Down when Input Power
• Temperature Range: -40°C to 85°C
• Packaging: MSOP-10 - MCP73841, MCP73842
Applications
• Lithium-Ion/Lithium-Polymer Battery Chargers
• Personal Data Assistants
• Cellular Telephones
• Hand-Held Instruments
• Cradle Chargers
• Digital Cameras
• MP3 Players
Typical Application Circuit
 2004 Microchip Technology Inc.
5V
- + 0.5% (max)
- 4.1V - MCP73841-4.1, MCP73843-4.1
- 4.2V - MCP73841-4.2, MCP73843-4.2
- 8.2V - MCP73842-8.2, MCP73844-8.2
- 8.4V - MCP73842-8.4, MCP73844-8.4
Monitoring (MCP73841 and MCP73842)
Removed
MA2Q705
10 µF
Lithium-Polymer Charge Management Controllers
1A Lithium-Ion Battery Charger
MSOP-8 - MCP73843, MCP73844
100 k
Advanced Single or Dual Cell Lithium-Ion/
100 m
2
3
4
SENSE
MCP73843
STAT1
EN
V
1
DD
NDS8434
TIMER
8
DRV
V
V
BAT
SS
7
6
5
+
-
10 µF
0.1 µF
Single
Lithium-Ion
Cell
MCP73841/2/3/4
Description
The MCP7384X family of devices are highly advanced
linear charge management controllers for use in
space-limited,
MCP73841 and MCP73842 combine high accuracy,
constant-voltage, constant-current regulation, cell pre-
conditioning, cell temperature monitoring, advanced
safety timers, automatic charge termination and
charge status indication in space-saving, 10-pin
MSOP packages. The MCP73841 and MCP73842
provide complete, fully-functional, stand-alone charge
management solutions.
The MCP73843 and MCP73844 employ all the
features of the MCP73841 and MCP73842, with the
exception of the cell temperature monitor. The
MCP73843 and MCP73844 are offered in 8-pin MSOP
packages.
The MCP73841 and MCP73843 are designed for
applications utilizing single-cell Lithium-Ion or Lithium-
Polymer battery packs. Two preset voltage regulation
options are available (4.1V and 4.2V) for use with either
coke or graphite anodes. The MCP73841 and
MCP73843 operate with an input voltage range of 4.5V
to 12V.
The MCP73842 and MCP73844 are designed for
applications utilizing dual series cell Lithium-Ion or
Lithium-Polymer battery packs. Two preset voltage
regulation options are available (8.2V and 8.4V). The
MCP73842 and MCP73844 operate with an input
voltage range of 8.7V to 12V.
The MCP7384X family of devices are fully specified
over the ambient temperature range of -40°C to +85°C.
Package Types
SENSE
SENSE
THREF
STAT1
STAT1
V
V
EN
EN
DD
DD
cost-sensitive
10-Pin MSOP
1
2
1
3
4
5
2
3
4
8-Pin MSOP
10
9
8
7
6
8
7
6
5
applications.
DS21823C-page 1
DRV
V
V
TIMER
THERM
DRV
V
V
TIMER
BAT
SS
BAT
SS
The

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MCP73844T-820I/MS Summary of contents

Page 1

... STAT1 TIMER 100 k MCP73843  2004 Microchip Technology Inc. MCP73841/2/3/4 Description The MCP7384X family of devices are highly advanced linear charge management controllers for use in space-limited, MCP73841 and MCP73842 combine high accuracy, constant-voltage, constant-current regulation, cell pre- conditioning, cell temperature monitoring, advanced ...

Page 2

... Precondition Precon Control Delay V UVLO V (1.2V) REF Charge Control, Charge Timers, I /10 REG And Status Logic Oscillator DRV + - REF V BAT 300 k Precondition (825 k ) Comp 74.21 k Constant-Voltage/ Recharge Comp 0. REF 150.02 k 5.15 k (4. STAT1 Drv Stat 1 Charge_ok  2004 Microchip Technology Inc. ...

Page 3

... Current Regulation (Fast Charge Constant-Current Mode) Fast Charge Current V Regulation Threshold  2004 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

... Low-to-High BAT mV V – SENSE -5°C to +55° High-to-Low BAT V V High-to-Low BAT mA Sink, CV Mode mA Source, CV Mode 4. 12. +25° (Typ)+1V REG THREF µA V =[V (Typ)+1V] to 12V DD REG % 0.20 mA THREF µ SINK µ mA 12V SINK STAT1  2004 Microchip Technology Inc. ...

Page 5

... Typical values are at +25° (Typ)+1.0V]. DD REG Parameters Temperature Ranges Specified Temperature Range Operating Temperature Range Storage Temperature Range Thermal Package Resistances Thermal Resistance, MSOP-10 Thermal Resistance, MSOP-8  2004 Microchip Technology Inc REG Min Typ Max Units V 1.4 - – – ...

Page 6

... I (mA) OUT Supply Current ( OUT +85°C MCP73841-4. 1000 mA OUT +25°C -45°C 6.0 7.5 9.0 10.5 12.0 V (V) DD Supply Current ( MCP73841-4. OUT -45°C +25°C +85°C 6.0 7.5 9.0 10.5 12.0 V (V) DD Supply Current (  2004 Microchip Technology Inc. ...

Page 7

... V (V) DD FIGURE 2-9: Battery Regulation Voltage (V ) vs. Supply Voltage (V ). BAT DD  2004 Microchip Technology Inc. MCP73841/2/3 (Typ and T REG OUT 1.40 1.20 = 9.4 V 1.00 0.80 0.60 0.40 0.20 0.00 ...

Page 8

... Battery Voltage (V BAT MCP73842-8. 9 100 125 150 175 200 I (µA) THREF Thermistor Reference ) vs. Thermistor Bias Current MCP73842-8. 100 µA THREF +85°C +25°C -45°C 9.2 9.6 10.0 10.4 10.8 11.2 11.6 12.0 V (V) DD Thermistor Reference ) vs. Supply Voltage (  2004 Microchip Technology Inc. ). ...

Page 9

... MCP73841-4. 100 mVp-p - OUT - µF, X7R, CERAMIC OUT -80 0.01 0 Frequency (kHz) FIGURE 2-21: Power Supply Ripple Rejection.  2004 Microchip Technology Inc. MCP73841/2/3 (Typ and T REG OUT BAT FIGURE 2-22: MCP73841-4. OUT BAT I OUT FIGURE 2-23: 0 -10 -20 -30 -40 -50 ...

Page 10

... A precision internal resistor divider regulates the final voltage on this pin to V 3.10 Drive Output (DRV) Direct output drive of an external P-channel MOSFET for current and voltage regulation. and Function /0.1 µF. TIMER ) BAT with a minimum of 4.7 µ REG  2004 Microchip Technology Inc. ...

Page 11

... REG expires. In this case, a fault is indicated and the charge cycle is terminated.  2004 Microchip Technology Inc. MCP73841/2/3/4 4.3 Constant-Voltage Regulation When the battery voltage reaches the regulation voltage (V ...

Page 12

Note: The qualification parameters are continuously monitored throughout the charge cycle. Preconditioning Phase Charge Current = I PREG Reset Safety Timer Yes V > V BAT PTH No Fault Yes Safety Timer Charge Current = 0 Expired Reset Safety Timer ...

Page 13

... Figure 6-1 depicts a typical application circuit with connection of the THERM input. The resistor values of R and R are calculated with the following T1 T2 equations.  2004 Microchip Technology Inc. MCP73841/2/3/4 For NTC thermistors For PTC thermistors: : SENSE R ...

Page 14

... Applying a logic-low input signal disables the device and terminates a charge cycle. When disabled, the device’s supply current is reduced to 0.25 µA, typically. Stat1 OFF OFF Flashing (1 Hz, 50% duty cycle) Flashing (1 Hz, 50% duty cycle) OFF OFF  2004 Microchip Technology Inc. ...

Page 15

... Precondition Current (I ) PREG Termination Current (I ) TERM Precondition Safety Timer FIGURE 6-2: Typical Charge Profile.  2004 Microchip Technology Inc. MCP73841/2/3/4 cells: constant-current followed by constant-voltage. Figure 6-1 depicts a typical stand-alone application circuit, while Figure 6-2 depicts the accompanying charge profile. R SENSE SENSE ...

Page 16

... DDMIN V is the maximum fast charge current FCSMAX regulation threshold = V – DDMAX PTHMIN REGMAX = 5.5V 2.75V – 551mA = 1.52W 2 pad of 2 oz. of the DSON provided by the controller occurs GS is – V – V DRVMAX DDMIN FCSMAX output  2004 Microchip Technology Inc. ...

Page 17

... In addition, the reverse-leakage current of the diode should be kept as small as possible.  2004 Microchip Technology Inc. 6.1.1.5 ENABLE INTERFACE In the stand-alone configuration, the enable pin is generally tied to the input voltage. The MCP7384X – ...

Page 18

... 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. * Standard marking consists of Microchip part number, year code, week code, and traceability code. DS21823C-page 18 Example: 738431 0319256 Example: 738411 0319256  2004 Microchip Technology Inc. ...

Page 19

... 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 .010" (0.254mm) per side. JEDEC Equivalent: MO-187 Drawing No. C04-111  2004 Microchip Technology Inc. MCP73841/2/3 φ A1 ...

Page 20

... A2 MILLIMETERS* MIN NOM MAX 10 0.50 TYP 1.10 0.75 0.85 0.95 0.00 - 0.15 4.90 BSC 3.00 BSC 3.00 BSC 0.40 0.60 0.80 0.95 REF 0° - 8° 0.08 - 0.23 0.15 0.23 0.30 5° - 15° 5° - 15°  2004 Microchip Technology Inc. ...

Page 21

... MCP73843T-410I/MS: 4.1V Preset Voltage, Tape and Reel MCP73843-420I/MS: 4.2V Preset Voltage MCP73843T-420I/MS: 4.2V Preset Voltage, Tape and Reel MCP73844-820I/MS: 8.2V Preset Voltage MCP73844T-820I/MS: 8.2V Preset Voltage, Tape and Reel MCP73844-840I/MS: 8.4V Preset Voltage MCP73844T-840I/MS: 8.4V Preset Voltage, Tape and Reel DS21823C-page 21 ...

Page 22

... MCP73841/2/3/4 NOTES: DS21823C-page 22  2004 Microchip Technology Inc. ...

Page 23

... PICLAB, PICtail, PowerCal, PowerInfo, PowerMate, PowerTool, rfLAB, rfPICDEM, Select Mode, Smart Serial, SmartTel and Total Endurance 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 24

... Fax: 65-6334-8850 Taiwan - Kaohsiung Tel: 886-7-536-4818 Fax: 886-7-536-4803 Taiwan - Taipei Tel: 886-2-2500-6610 Fax: 886-2-2508-0102 Taiwan - Hsinchu Tel: 886-3-572-9526 Fax: 886-3-572-6459  2004 Microchip Technology Inc. EUROPE Austria - Weis Tel: 43-7242-2244-399 Fax: 43-7242-2244-393 Denmark - Ballerup Tel: 45-4420-9895 Fax: 45-4420-9910 France - Massy Tel: 33-1-69-53-63-20 ...

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