MCP73831 Datasheet - Adafruit

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MCP73831 Functional Block Diagram V DD 6 μA DIRECTION CONTROL V BAT 6 μA G=0.001 PROG 0.5 μA REFERENCE GENERATOR V REF (1.22V) 111 kΩ 361 kΩ 89 kΩ 7kΩ 43.6 kΩ + - PRECONDITION + - TERMINATION + - CHARGE + - 3.9 kΩ 182.3 kΩ 15 kΩ CA STAT 190 kΩ + - VA 111 kΩ V SS 0.5 μA 477 kΩ 255 kΩ 100 kΩ V BAT + - + - + - SHDN DIRECTION CONTROL UVLO DS21984A-page 2 © 2005 Microchip Technology Inc.
MCP73831 1.0 ELECTRICAL CHARACTERISTICS Absolute Maximum Ratings† V DDN .................................................................................7.0V All Inputs and Outputs w.r.t. V SS ............... -0.3 to (V DD +0.3)V Maximum Junction Temperature, T J ............Internally Limited Storage temperature .....................................-65°C to +150°C ESD protection on all pins: Human Body Model (1.5 kΩ in Series with 100 pF).......≥ 4kV Machine Model (200 pF, No Series Resistance) .............400V DC CHARACTERISTICS † 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. Exposure to maximum rating conditions for extended periods may affect device reliability. Electrical Specifications: Unless otherwise indicated, all limits apply for V DD = [V REG (typ.) + 0.3V] to 6V, T A = -40°C to +85°C. Typical values are at +25°C, V DD = [V REG (typ.) + 1.0V] Parameters Sym. Min. Typ. Max. Units Conditions Supply Input Supply Voltage V DD 3.75 — 6 V Supply Current I SS — 510 1500 μA Charging — 53 200 μA Charge Complete, No Battery — 25 50 μA PROG Floating — 1 5 μA V DD < (V BAT - 50 mV) — 0.1 2 μA V DD < V STOP UVLO Start Threshold V START 3.3 3.45 3.6 V V DD Low-to-High UVLO Stop Threshold V STOP 3.2 3.38 3.5 V V DD High-to-Low UVLO Hysteresis V HYS — 70 — mV Voltage Regulation (Constant-Voltage Mode) Regulated Output Voltage V REG 4.168 4.20 4.232 V MCP73831-2 4.317 4.35 4.383 V MCP73831-3 4.367 4.40 4.433 V MCP73831-4 4.466 4.50 4.534 V MCP73831-5 V DD = [V REG (Typ)+1V] I OUT = 10 mA T A = -5°C to +55°C Line Regulation |(ΔV BAT /V BAT )/ ΔV DD | — 0.09 0.30 %/V V DD = [V REG (Typ)+1V] to 6V I OUT = 10 mA Load Regulation |ΔV BAT /V BAT | — 0.05 0.30 % I OUT = 10 mA to 50 mA V DD = [V REG (Typ)+1V] Supply Ripple Attenuation PSRR — 52 —- dB I OUT =10mA, 10Hz to 1kHz — 47 — dB I OUT =10 mA, 10Hz to 10 kHz — 22 — dB I OUT =10mA, 10Hz to 1MHz Current Regulation (Fast Charge Constant-Current Mode) Fast Charge Current I REG 90 100 110 mA PROG = 10 kΩ Regulation 450 505 550 mA PROG = 2.0 kΩ, Note 1 T A = -5°C to +55°C Note 1: Not production tested. Ensured by design. © 2005 Microchip Technology Inc. DS21984A-page 3
Page 1: MCP73831 Miniature Single Cell, Ful
Page 5 and 6: MCP73831 AC CHARACTERISTICS Electri
Page 7 and 8: TYPICAL PERFORMANCE CURVES (CONTINU
Page 9 and 10: MCP73831 3.0 PIN DESCRIPTION The de
Page 11 and 12: MCP73831 4.5 Constant-Voltage Mode
Page 13 and 14: MCP73831 6.0 APPLICATIONS The MCP73
Page 15 and 16: MCP73831 7.0 PACKAGING INFORMATION
Page 17 and 18: MCP73831 5-Lead Plastic Small Outli
Page 19 and 20: MCP73831 APPENDIX A: REVISION HISTO
Page 21 and 22: MCP73831 PRODUCT IDENTIFICATION SYS
Page 23 and 24: Note the following details of the c

MCP73831 Datasheet - Adafruit

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