Datasheet MCP73831, MCP73832 (Microchip) - 3

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MCP73831/2 1.0 ELECTRICAL † Notice:
Stresses above those listed under “Maximum
CHARACTERISTICS
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
Absolute Maximum Ratings†
indicated in the operational listings of this specification V is not implied. Exposure to maximum rating conditions DD...7.0V for extended periods may affect device reliability. All Inputs and Outputs w.r.t. VSS ... -0.3 to (VDD+0.3)V Maximum Junction Temperature, TJ ..Internally Limited Storage temperature ...-65°C to +150°C ESD protection on all pins: Human Body Model (1.5 k in Series with 100 pF)4 kV Machine Model (200 pF, No Series Resistance) ...400V
DC CHARACTERISTICS Electrical Specifications:
Unless otherwise indicated, all limits apply for VDD= [VREG(typical) + 0.3V] to 6V, TA = -40°C to +85°C. Typical values are at +25°C, VDD = [VREG (typical) + 1.0V]
Parameters Sym. Min. Typ. Max. Units Conditions Supply Input
Supply Voltage VDD 3.75 — 6 V Supply Current ISS — 510 1500 µA Charging — 53 200 µA Charge Complete, No Battery — 25 50 µA PROG Floating — 1 5 µA VDD < (VBAT - 50 mV) — 0.1 2 µA VDD < VSTOP UVLO Start Threshold VSTART 3.3 3.45 3.6 V VDD Low-to-High UVLO Stop Threshold VSTOP 3.2 3.38 3.5 V VDD High-to-Low UVLO Hysteresis VHYS — 70 — mV
Voltage Regulation (Constant-Voltage Mode)
Regulated Output Voltage VREG 4.168 4.20 4.232 V MCP7383X-2 4.317 4.35 4.383 V MCP7383X-3 4.367 4.40 4.433 V MCP7383X-4 4.466 4.50 4.534 V MCP7383X-5 VDD = [VREG(typical)+1V] IOUT = 10 mA TA = -5°C to +55°C Line Regulation VBAT/ — 0.09 0.30 %/V VDD = [VREG(typical)+1V] to VBAT)/VDD| 6V, IOUT = 10 mA Load Regulation VBAT/VBAT| — 0.05 0.30 % IOUT = 10 mA to 50 mA VDD = [VREG(typical)+1V] Supply Ripple Attenuation PSRR — 52 —- dB IOUT=10 mA, 10Hz to 1 kHz — 47 — dB IOUT=10 mA, 10Hz to 10 kHz — 22 — dB IOUT=10 mA, 10Hz to 1 MHz
Current Regulation (Fast Charge Constant-Current Mode)
Fast Charge Current IREG 90 100 110 mA PROG = 10 k Regulation 450 505 550 mA PROG = 2.0 k
Note 1
12.5 14.5 16.5 mA PROG = 67 k TA = -5°C to +55°C
Note 1:
Not production tested. Ensured by design.  2005-2014 Microchip Technology Inc. DS20001984G-page 3 Document Outline MCP73831/2 Functional Block Diagram 1.0 Electrical Characteristics 2.0 Typical Performance Curves FIGURE 2-1: Battery Regulation Voltage (VBAT) vs. Supply Voltage (VDD). FIGURE 2-2: Battery Regulation Voltage (VBAT) vs. Ambient Temperature (TA). FIGURE 2-3: Output Leakage Current (IDISCHARGE) vs. Battery Regulation Voltage (VBAT). FIGURE 2-4: Charge Current (IOUT) vs. Programming Resistor (RPROG). FIGURE 2-5: Charge Current (IOUT) vs. Supply Voltage (VDD). FIGURE 2-6: Charge Current (IOUT) vs. Supply Voltage (VDD). FIGURE 2-7: Charge Current (IOUT) vs. Ambient Temperature (TA). FIGURE 2-8: Charge Current (IOUT) vs. Ambient Temperature (TA). FIGURE 2-9: Charge Current (IOUT) vs. Junction Temperature (TJ). FIGURE 2-10: Charge Current (IOUT) vs. Junction Temperature (TJ). FIGURE 2-11: Power Supply Ripple Rejection (PSRR). FIGURE 2-12: Power Supply Ripple Rejection (PSRR). FIGURE 2-13: Line Transient Response. FIGURE 2-14: Line Transient Response. FIGURE 2-15: Load Transient Response. FIGURE 2-16: Load Transient Response. FIGURE 2-17: Complete Charge Cycle (180 mAh Li-Ion Battery). FIGURE 2-18: Complete Charge Cycle (1000 mAh Li-Ion Battery). 3.0 Pin Description TABLE 3-1: Pin Function TableS 3.1 Battery Management Input Supply (VDD) 3.2 Battery Charge Control Output (VBAT) 3.3 Charge Status Output (STAT) 3.4 Battery Management 0V Reference (VSS) 3.5 Current Regulation Set (PROG) 3.6 Exposed Thermal Pad (EP) 4.0 Device Overview FIGURE 4-1: Flowchart. 4.1 Undervoltage Lockout (UVLO) 4.2 Battery Detection 4.3 Charge Qualification 4.4 Preconditioning 4.5 Fast Charge Constant-Current Mode 4.6 Constant-Voltage Mode 4.7 Charge Termination 4.8 Automatic Recharge 4.9 Thermal Regulation FIGURE 4-2: Thermal Regulation. 4.10 Thermal Shutdown 5.0 Detailed Description 5.1 Analog Circuitry 5.2 Digital Circuitry TABLE 5-1: Status Output 6.0 Applications FIGURE 6-1: Typical Application Circuit. FIGURE 6-2: Typical Charge Profile (180 mAh Battery). FIGURE 6-3: Typical Charge Profile in Thermal Regulation (1000 mAh Battery). 6.1 Application Circuit Design 6.2 PCB Layout Issues FIGURE 6-4: Typical Layout (Top). FIGURE 6-5: Typical Layout (Bottom). 7.0 Packaging Information 7.1 Package Marking Information Appendix A: Revision History Product ID System Trademarks Worldwide Sales