MCP73838-NVI/MF Microchip Technology, MCP73838-NVI/MF Datasheet
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MCP73838-NVI/MF
Specifications of MCP73838-NVI/MF
Related parts for MCP73838-NVI/MF
MCP73838-NVI/MF Summary of contents
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... Bluetooth Headsets • Handheld Medical Devices • AC/USB Dual Source Li-Ion Battery Chargers Description The MCP73837 and MCP73838 devices are fully integrated linear Li-Ion / Li-Polymer battery chargers with autonomous power source selection. Along with its small physical size, the low number of external components required makes the MCP73837/8 ideally suitable for portable applications ...
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... PG (TE) STAT2 4 7 PROG2 PROG1 SS MCP73837 Typical Application THERM USB 1 kΩ 3 STAT1 1 kΩ 4 STAT2 PROG2 1 kΩ PROG1 MCP73838 Typical Application THERM USB 1 KΩ 3 STAT1 1 KΩ 4 STAT2 PROG2 5 V PROG1 BAT 9 THERM 8 PG (TE) 7 PROG2 6 PROG1 10 BAT Thermsitor 4.7 µ ...
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... PROG1 REFERENCE, V REF (1.21V) BIAS, UVLO, AND SHDN VO UVLO REG TERM PROG2 CHARGE CHARGE CONTROL, STAT1 TIMER, AND STATUS LOGIC STAT2 LDO PG (TE) HTVT LTVT © 2007 Microchip Technology Inc. 100 mA/500 mA 10k AC/USB 1k AC/USB 111k 310k + - 72.7k - PRECONDITION + - + 6k 157. 470.6k ...
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... OUT V =[V (typical)+1V] DD REG dB I =10 mA, 10Hz to 1 kHz OUT dB I =10 mA, 10Hz to 10 kHz OUT dB I =10 mA, 10Hz to 1 MHz OUT mA PROG1 = 10 kΩ mA PROG1 = 1 kΩ, Note 2 T =-5°C to +55° USB © 2007 Microchip Technology Inc. ...
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... USB-Port. 2: The value is guaranteed by design and not production tested. 3: The current is based on the ratio of selected current regulation (I 4: The maximum charge impedance has to be less than shutdown impedance for normal operation. © 2007 Microchip Technology Inc REG = [V (typical) + 1.0V] DD ...
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... THERM V V Low to High High to Low µA Stand-by Or System Test Mode µF I < 250 mA OUT µF I > 250 mA OUT V 2.3V < V < V BAT REG V Falling 2.3V < V < V BAT REG V Rising DD °C ° USB © 2007 Microchip Technology Inc. ...
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... Operating Temperature Range Storage Temperature Range Thermal Package Resistances Thermal Resistance, 10-Lead MSOP Thermal Resistance, 10-Lead DFN Note 1: This represents the minimum copper condition on the PCB ( Printed Circuit Board). © 2007 Microchip Technology Inc REG (typical) + 1.0V] Sym Min Typ Max t — ...
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... FIGURE 2-6: Programming Resistor (R = +25°C, Constant-voltage mode 4. Temperature (°C) Output Leakage Current ) vs. Ambient Temperature ( Floating Battery Voltage (V) Output Leakage Current ) vs. Battery Voltage (V ). BAT V = 5.2V DD Temp = 25°C R (kΩ) PROG Charge Current (I ) vs. OUT ). PROG © 2007 Microchip Technology Inc. ...
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... Charge Current (I Supply Voltage ( 1100 1050 1000 950 900 850 800 750 700 -40 -30 -20 - Ambient Temperature (°C) FIGURE 2-9: Charge Current (I Ambient Temperature ( © 2007 Microchip Technology Inc (typical and T REG OUT 110 kΩ 108 PROG Temp = +25°C 106 104 102 100 ...
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... FIGURE 2-18: THERM Rejection (PSRR). = +25°C, Constant-voltage mode 5.2V DD Ambient Temperature (°C) Thermistor Current (I THERM ). A 0 100 1000 Frequency (kHz) Power Supply Ripple = 100 mA = 4.7 µF 0 100 1000 Frequency (kHz) Power Supply Ripple © 2007 Microchip Technology Inc. ) ...
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... Time (µs) FIGURE 2-20: Line Transient Response. 0. 0.3 OUT 0.25 0.2 0.15 0.1 0.05 0 -0.05 Time (Minutes) FIGURE 2-21: Load Transient Response. © 2007 Microchip Technology Inc (typical and T REG OUT 1 0.1 0.9 0.8 0 0.7 0.6 -0.1 0.5 0.4 0.3 -0.2 ...
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... Constant-voltage mode. A 0.12 0.1 0.08 0.06 0.04 0.02 = USB_Low 0 Time (Minutes) Complete Charge Cycle 0.12 0.1 0.08 0.06 C.V. Begins 0. 5. USB_Low PROG 0.02 180 mAh Li-Ion Battery Time (Minutes) Typical Charge Profile in © 2007 Microchip Technology Inc. ...
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... I Current Regulation Setting With USB-Port; Precondition Set Point for USB control. O Available on MCP73837: Power-Good Status Output (Open-Drain) I Available on MCP73838: Timer Enable; Enables Safety Timer (Active Low) I/O Thermistor Monitoring Input and Bias current; System Test (LDO) Mode Input I/O Battery Positive Input and Output Connection — ...
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... DS22071A-page 14 3.10 Timer Enable (TE) Timer Enable (TE) is available only on MCP73838. (TE) enables the built-in safety timer when pull low and disables the built-in safety timer when pull high. Note: The built-in safety timer is available for both MCP73837 and MCP73838 in the following options: Disable, 4 HR, 6 HR, and 8 HR ...
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... THERM DD STAT1 = LOW STAT2 = LOW PG = LOW Timer Suspended TEMPERATURE FAULT No Charge Current STAT1 = Hi-Z STAT2 = Hi LOW Timer Suspended FIGURE 4-1: Flow Chart. © 2007 Microchip Technology Inc. * SHUTDOWN MODE* Continuously Monitored V V < - 100 mV DD BAT V < STOP STAT1 = Hi-Z ...
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... PROG1/2 pin is opened, the MCP73837/8 enters the Stand-by mode where it remains until a battery is reinserted or the PROG1/2 pin Characteristics” for pin rises above the BAT . The SS 1000V I = ---------------- - REG R PROG is in REG from a USB-Port, the host ., REG © 2007 Microchip Technology Inc. ...
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... Li-Ion batteries to prolong the life of Li-Ion batteries while keeping their capacity at healthy level. © 2007 Microchip Technology Inc. 4.9 Thermal Regulation The MCP73837/8 limits the charge current based on the die temperature. The thermal regulation optimizes the charge cycle time while maintaining device reliability ...
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... LEDs. Optionally, the charge status outputs can be used as an interface to a host microcontroller. the status outputs during a charge cycle. pins BAT with a minimum SS - 100 mV) with no battery DD is disabled during shutdown, Table 5-1 summarizes the state of © 2007 Microchip Technology Inc. ...
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... The TE input can be used to disable the timer when the charger is supplying current to charge the battery and power the system load. The TE input is compatible with 1.8V logic. The TE option is available only on MCP73838. PG 5.2.5 DEVICE DISABLE (PROG1/2) Hi-Z ...
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... Preconditioning mode to the Constant-current mode. In this case, the power dissipation is: Figure 6-1 depicts a typical stand- Figure 6-2 depict the accompanying charge 10 BAT Thermsitor C Single OUT 9 Li-Ion Cell Low 6 R PROG has transitioned from the Figure 6-1 is © 2007 Microchip Technology Inc. ...
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... The current regulation set input pin (PROG1/2) can be used to terminate a charge at any time during the charge cycle, as well as to initiate a charge cycle or initiate a recharge cycle. © 2007 Microchip Technology Inc. Placing a programming resistor from the PROG1 input driving PROG2 to logic High or Low enables ...
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... MCP73837-FCI/MF XYWW 3 8 MCP73837-FJI/MF NNN 4 7 MCP73837-NVI/ MCP73838-FCI/MF MCP73838-FJI/MF MCP73838-NVI/MF * Consult Factory for Alternative Device Options. 10-Lead MSOP * * Part Number * MCP73837-FCI/UN XXXXXX MCP73837-FJI/UN YWWNNN MCP73837-NVI/UN MCP73838-FCI/UN MCP73838-FJI/UN MCP73838-NVI/UN * Consult Factory for Alternative Device Options Consult Factory for MSOP Package Availability. Legend: XX...X ...
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... D N NOTE TOP VIEW A3 © 2007 Microchip Technology Inc EXPOSED PAD BOTTOM VIEW A A1 NOTE 2 MCP73837 NOTE DS22071A-page 23 ...
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... MCP73837 NOTE DS22071A-page φ © 2007 Microchip Technology Inc. ...
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... APPENDIX A: REVISION HISTORY Revision A (November 2007) • Original Release of this Document. © 2007 Microchip Technology Inc. MCP73837/8 DS22071A-page 25 ...
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... MCP73837/8 NOTES: DS22071A-page 26 © 2007 Microchip Technology Inc. ...
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... MCP73837-FJI/MF: 10-lead DFN pkg. f) MCP73837-NVI/MF: 10-lead DFN pkg. a) MCP73838-FCI/UN: 10-lead MSOP pkg. b) MCP73838-FJI/UN: 10-lead MSOP pkg. c) MCP73838-NVI/UN: 10-lead MSOP pkg. d) MCP73838-FCI/MF: 10-lead DFN pkg. e) MCP73838-FJI/MF: 10-lead DFN pkg. f) MCP73838-NVI/MF: 10-lead DFN pkg Consult Factory for Alternative Device Options PREG REG PTH REG TERM REG 10% 71 ...
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... MCP73837/8 NOTES: DS22071A-page 28 © 2007 Microchip Technology Inc. ...
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... PowerInfo, PowerMate, PowerTool, REAL ICE, rfLAB, Select Mode, Smart Serial, SmartTel, Total Endurance, UNI/O, 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. ...
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... 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 © 2007 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 ...