MCP73855-I/MF Microchip Technology, MCP73855-I/MF Datasheet
MCP73855-I/MF
Specifications of MCP73855-I/MF
Available stocks
Related parts for MCP73855-I/MF
MCP73855-I/MF Summary of contents
Page 1
... QFN package. The MCP73855 employs all the features of the MCP73853, with the exception of the cell temperature monitor and one status output. The MCP73855 is offered in a space-saving 10-lead DFN package. ...
Page 2
... MCP73853 ONLY TIMER DS21915A-page DD1 BAT1 4.7 µ SET BAT2 STAT1 6 TIMER 0.1 µ PROG V SS MCP73855 REF Charge Current 90 k Control Amplifier Voltage Control + Amplifier – V Charge_OK /12 Precondition Precon Control Constant-voltage/ Recharge Comp. Power-On Delay V UVLO V (1.2V) REF Charge Control, ...
Page 3
... Precondition Threshold V PTH Voltage 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
... A — 155 — °C — 10 — ° (Typ) + 0.3V] to 5.5V, REG Conditions -5°C to +55° High-to-Low BAT T = 25° (Typ REG THREF = [V (Typ) + 1V] to 5.5V DD REG 0.20 mA THREF = 1 mA SINK mA 5.5V SINK STAT1 5.5V ENABLE 2004 Microchip Technology Inc. ...
Page 5
... DD Parameters Temperature Ranges Specified Temperature Range Operating Temperature Range Storage Temperature Range Thermal Package Resistances Thermal Resistance, 16-L, 4mm x 4mm QFN Thermal Resistance, 10-L, 3mm x 3mm DFN 2004 Microchip Technology Inc (Typ) + 1.0V] DD REG Min Typ Max Units — ...
Page 6
... I (mA) OUT Supply Current ( OUT SET 375 mA OUT 4.7 4.9 5.1 5.3 5.5 V (V) DD Supply Current ( SET OUT 4.7 4.9 5.1 5.3 5.5 V (V) DD Supply Current ( 2004 Microchip Technology Inc. ...
Page 7
... I (µA) THREF FIGURE 2-9: Thermistor Reference Voltage (V ) vs. Thermistor Bias Current THREF (I ). THREF 2004 Microchip Technology Inc (Typ and T REG OUT 1. SET DD 0. 0.80 0.70 +85°C 0.60 +25°C 0.50 0.40 -40° ...
Page 8
... FIGURE 2-16: FIGURE 2-17: 0 -10 -20 -30 -40 -50 -60 -70 -80 100 1000 0.01 FIGURE 2-18: Rejection. = +25°C. A Line Transient Response. Load Transient Response. MCP73853 100 mVp 100 mA OUT X7R, Ceramic OUT 0 100 1000 Frequency (kHz) Power Supply Ripple 2004 Microchip Technology Inc. ...
Page 9
... NOTE: Unless otherwise indicated 500 400 300 200 100 0 OPEN 4.8K 1.6K 536 PROG FIGURE 2-19: Charge Current (I Programming Resistor (R ). PROG 2004 Microchip Technology Inc (Typ mA, and T REG OUT 300 SET DD 295 290 285 280 275 270 265 260 255 ...
Page 10
... MCP73853/55 3.0 PIN DESCRIPTION The descriptions of the pins are listed in Table 3-1. TABLE 3-1: PIN FUNCTION TABLE MCP73853 MCP73855 — — 7 — — — — 3.1 Voltage Regulation Selection (V ) SET Connect to V for 4.1V regulation voltage. Connect for 4.2V regulation voltage. ...
Page 11
... MCP7385X devices monitor the battery voltage at the V pin. This input is tied directly to the positive termi- BAT nal of the battery. The MCP7385X devices select the voltage regulation value based on the state of V 2004 Microchip Technology Inc. MCP73853/55 With V tied the MCP7385X devices regulate SET ...
Page 12
Note 1: The qualification parameters are continuously monitored throughout the charge cycle. For more details on this, refer to Section 4.1 “Charge Qualification and Preconditioning” . Note 2: The charge current will be scaled based on the die temperature during ...
Page 13
... The temperature-sensing circuit DD is removed from the system when V DD eliminating additional discharge of the battery pack. 2004 Microchip Technology Inc. Figure 6-1 depicts a typical application circuit with connection of the THERM input. The resistor values of R and R T1 equations ...
Page 14
... Two status outputs provide information on the state of charge for the MCP73853. One status output provides information on the state of charge for the MCP73855. The current-limited, open-drain outputs can be used to illuminate external LEDs. Optionally, a pull-up resistor can be used on the output for communication with a host microcontroller ...
Page 15
... Termination Current (I ) TERM Precondition Safety Timer FIGURE 6-2: Typical Charge Profile. 2004 Microchip Technology Inc. MCP73853/55 cells, constant current followed by constant voltage. Figure 6-1 depicts a typical stand-alone application circuit, while Figures 6-2 and 6-3 depict the accompanying charge profile. STAT1 EN V ...
Page 16
... Transition Threshold (V ) PTH Precondition Current (I ) PREG Termination Current (I ) TERM Precondition Safety Timer FIGURE 6-3: Typical Charge Profile in Thermal Regulation. DS21915A-page 16 Constant-current Constant-voltage Mode Mode Charge Voltage Charge Current Fast Charge Safety Timer Elapsed Time Termination Timer 2004 Microchip Technology Inc. ...
Page 17
... This would allow for a maximum operat- ing ambient temperature of 35°C before thermal regulation is entered. 2004 Microchip Technology Inc. 6.1.1.3 EXTERNAL CAPACITORS The MCP7385X devices are stable with or without a battery load. In order to maintain good AC stability in the Constant-voltage mode, a minimum capacitance of 4.7 µ ...
Page 18
... MCP73853/55 7.0 PACKAGING INFORMATION 7.1 Package Marking Information 16-Lead QFN (MCP73853) XXXXXXX XXXXXXX YYWWNNN 10-Lead DFN (MCP73855) XXXX XYWW NNN Legend: XX...X Customer specific information* YY Year code (last 2 digits of calendar year) WW Week code (week of January 1 is week ‘01’) NNN Alphanumeric traceability code ...
Page 19
... Overall Height Standoff Contact Thickness Overall Width Exposed Pad Width Overall Length Exposed Pad Length Contact Width Contact Length *Controlling Parameter Notes: JEDEC equivalent: MO-220 Drawing No. C04-127 2004 Microchip Technology Inc. EXPOSED METAL PAD OPTIONAL INDEX AREA A3 Units INCHES MIN ...
Page 20
... BOTTOM VIEW MILLIMETERS* MIN NOM MAX 10 0.50 BSC 0.80 0.90 1.00 0.00 0.02 0.05 0.20 REF. 2.85 3.00 3.15 1.39 -- 2.45 2.85 3.00 3.15 1.20 -- 1.75 0.18 0.25 0.30 0.30 0.40 0.50 Revised 05/24/04 2004 Microchip Technology Inc. ...
Page 21
... Microchip Technology Inc. MCP73853/55 . Examples: a) MCP73853T-I/ML: Tape and Reel, USB compatible charge controller with tempera- ture monitor b) MCP73853-I/ML: USB compatible charge controller with tempera- ture monitor a) MCP73855T-I/MF: Tape and Reel, USB compatible charge controller b) MCP73855-I/MF: USB compatible charge controller DS21915A-page 21 ...
Page 22
... MCP73853/55 NOTES: DS21915A-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: 45-4450-2828 Fax: 45-4485-2829 France - Massy Tel: 33-1-69-53-63-20 ...