Datasheet MCP73831, MCP73832 (Microchip) - 5

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MCP73831/2 DC CHARACTERISTICS (CONTINUED) 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
Automatic Power Down VPDEXIT — VDD<(VBAT VDD<(VBAT 3.5V  VBAT  VREG Exit Threshold +150 mV) +200 mV) VDD Rising
Thermal Shutdown
Die Temperature TSD — 150 — C Die Temperature TSDHYS — 10 — C Hysteresis
Note 1:
Not production tested. Ensured by design.
AC CHARACTERISTICS Electrical Specifications:
Unless otherwise indicated, all limits apply for VDD = [VREG (typical) + 0.3V] to 12V, TA = -40°C to +85°C. Typical values are at +25°C, VDD = [VREG (typical) + 1.0V]
Parameters Sym. Min. Typ. Max. Units Conditions
UVLO Start Delay tSTART — — 5 ms VDD Low-to-High
Constant-Current Regulation
Transition Time Out of tDELAY — — 1 ms VBAT < VPTH to VBAT > VPTH Preconditioning Current Rise Time Out of tRISE — — 1 ms IOUT Rising to 90% of IREG Preconditioning Termination Comparator tTERM 0.4 1.3 3.2 ms Average IOUT Falling Filter Charge Comparator Filter tCHARGE 0.4 1.3 3.2 ms Average VBAT
Status Indicator
Status Output turn-off tOFF — — 200 µs ISINK = 1 mA to 0 mA Status Output turn-on tON — — 200 µs ISINK = 0 mA to 1 mA
TEMPERATURE SPECIFICATIONS Electrical Specifications:
Unless otherwise indicated, all limits apply for VDD = [VREG (typical) + 0.3V] to 12V. Typical values are at +25°C, VDD = [VREG (typical) + 1.0V]
Parameters Sym. Min. Typ. Max. Units Conditions Temperature Ranges
Specified Temperature Range TA -40 — +85 °C Operating Temperature Range TJ -40 — +125 °C Storage Temperature Range TA -65 — +150 °C
Thermal Package Resistances
5-Lead, SOT-23 JA — 230 — °C/W 4-Layer JC51-7 Standard Board, Natural Convection
(Note 2)
8-Lead, 2 mm x 3 mm, DFN JA — 76 — °C/W 4-Layer JC51-7 Standard Board, Natural Convection
(Note 1) Note 1:
This represents the minimum copper condition on the PCB (Printed Circuit Board).
2:
With large copper area on the PCB, the SOT-23-5 thermal resistance (JA) can reach a typical value of 130°C/W or better.  2005-2014 Microchip Technology Inc. DS20001984G-page 5 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