MCP73831/2 Data Sheet - Microchip Technology

1 MCP73831/2 . Miniature Single-Cell, Fully Integrated Li-Ion, Li-Polymer Charge Management Controllers Features: Description: Linear Charge Management Controller: The MCP73831/2 devices are highly advanced linear - Integrated Pass Transistor charge management controllers for use in space- - Integrated Current Sense limited, cost-sensitive applications. The MCP73831/2 . are available in an 8-Lead, 2 mm x 3 mm DFN package - Reverse Discharge Protection or a 5-Lead, SOT-23 package. Along with their small High Accuracy Preset Voltage Regulation: + physical size, the low number of external components Four Voltage Regulation Options: required make the MCP73831/2 ideally suited for - , , , portable applications.

2 For applications charging from a Programmable Charge Current: 15 mA to 500 mA USB port, the MCP73831/2 adhere to all the specifications governing the USB power bus. Selectable Preconditioning: - 10%, 20%, 40%, or Disable The MCP73831/2 employ a constant-current/constant- voltage charge algorithm with selectable Selectable End-of-Charge Control: preconditioning and charge termination. The constant - 5%, , 10%, or 20% voltage regulation is fixed with four available options: Charge Status Output , , or , to accommodate new, - Tri-State Output - mcp73831 emerging battery charging requirements.

3 The constant - Open-Drain Output - MCP73832 current value is set with one external resistor. The Automatic Power-Down MCP73831/2 devices limit the charge current based on die temperature during high power or high ambient Thermal Regulation conditions. This thermal regulation optimizes the Temperature Range: -40 C to +85 C charge cycle time while maintaining device reliability. Packaging: Several options are available for the preconditioning - 8-Lead, 2 mm x 3 mm DFN threshold, preconditioning current value, charge - 5-Lead, SOT-23 termination value and automatic recharge threshold.

4 The preconditioning value and charge termination Applications: value are set as a ratio or percentage of the programmed constant current value. Preconditioning Lithium-Ion/Lithium-Polymer Battery Chargers can be disabled. Refer to Section Electrical Personal Data Assistants Characteristics for available options and the Cellular Telephones Product Identification System for standard options. Digital Cameras The MCP73831/2 devices are fully specified over the MP3 Players ambient temperature range of -40 C to +85 C.

5 Bluetooth Headsets USB Chargers Package Types Typical Application MCP73831/2 MCP73831/2 . 2 3 DFN* SOT-23-5. 500 mA Li-Ion Battery Charger VIN VDD 1 8 PROG STAT 1 5 PROG. 4 V VBAT 3. DD + Single VDD 2 EP 7 NC VSS 2. F F Li-Ion - Cell 9 VBAT 3 4 VDD. VBAT 3 6 VSS. 5. PROG VBAT 4 5 STAT. 470 2 k * Includes Exposed Thermal Pad (EP); see Table 3-1. 1 VSS 2. STAT. mcp73831 . 2005-2014 Microchip Technology Inc. DS20001984G-page 1. MCP73831/2 . Functional Block Diagram VDD. 6 A. DIRECTION. CONTROL. VBAT. 6 A G= PROG A.

6 + CA. mcp73831 . REFERENCE - ONLY. GENERATOR. k . VREF( ) 361 k k VDD. +. 89 k - PRECONDITION. k . 111 k . + 15 k STAT. - TERMINATION. +. - 7 k CHARGE. + VA. - 190 k . 111 k . +. SHDN. A - + DIRECTION. CONTROL. VBAT - 477 k . + UVLO. - 255 k 100 k . VSS. DS20001984G-page 2 2005-2014 Microchip Technology Inc. MCP73831/2 . ELECTRICAL Notice: Stresses above those listed under Maximum Ratings may cause permanent damage to the device. CHARACTERISTICS. 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 is not implied.

7 Exposure to maximum rating conditions for extended periods may affect device reliability. All Inputs and Outputs VSS .. to (VDD+ )V. Maximum Junction Temperature, TJ .. Internally Limited Storage temperature ..-65 C to +150 C. ESD protection on all pins: Human Body Model ( 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) + ] to 6V, TA = -40 C to +85 C. Typical values are at +25 C, VDD = [VREG (typical) + ].

8 Parameters Sym. Min. Typ. Max. Units Conditions Supply Input Supply Voltage VDD 6 V. Supply Current ISS 510 1500 A Charging 53 200 A Charge Complete, No Battery 25 50 A PROG Floating 1 5 A VDD < (VBAT - 50 mV). 2 A VDD < VSTOP. UVLO Start Threshold VSTART V VDD Low-to-High UVLO Stop Threshold VSTOP V VDD High-to-Low UVLO Hysteresis VHYS 70 mV. Voltage Regulation (Constant-Voltage Mode). Regulated Output Voltage VREG V MCP7383X-2. V MCP7383X-3. V MCP7383X-4. V MCP7383X-5. VDD = [VREG(typical)+1V]. IOUT = 10 mA.

9 TA = -5 C to +55 C. Line Regulation VBAT/ %/V VDD = [VREG(typical)+1V] to VBAT)/ VDD| 6V, IOUT = 10 mA. Load Regulation VBAT/VBAT| % 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 = k Note 1. mA PROG = 67 k . TA = -5 C to +55 C. Note 1: Not production tested.

10 Ensured by design. 2005-2014 Microchip Technology Inc. DS20001984G-page 3. MCP73831/2 . DC CHARACTERISTICS (CONTINUED). Electrical Specifications: Unless otherwise indicated, all limits apply for VDD= [VREG(typical) + ] to 6V, TA = -40 C to +85 C. Typical values are at +25 C, VDD = [VREG (typical) + ]. Parameters Sym. Min. Typ. Max. Units Conditions Preconditioning Current Regulation (Trickle Charge Constant-Current Mode). Precondition Current IPREG / IREG 10 % PROG = k to 10 k . Ratio 15 20 25 % PROG = k to 10 k.