Microchip Technology MCP73113T-16SI/MF

Overview

MCP73113T-16SI/MF from Microchip Technology is a single-cell Li-ion/Li-polymer linear battery charge management controller with integrated pass transistor, input overvoltage protection (6.5 V), and resistor-programmable fast charge current (130–1100 mA). It delivers ±0.5% voltage regulation at 4.10 V across –5°C to +55°C and supports automatic recharge at 95% V_REG, thermal regulation, and 32-minute precondition timer - used in USB-powered portable media players and Bluetooth headsets.

For engineers reviewing the MCP73113T-16SI/MF datasheet, MCP73113T-16SI/MF pinout, MCP73113T-16SI/MF application, or MCP73113T-16SI/MF equivalent, this page provides verified functional specifications, DFN-10 package layout, factory-preset 4.10 V charge voltage with 10% preconditioning, 6-hour elapsed safety timer, and Type 1 status output - all confirmed for the exact part number per Microchip DS20002183E.

Technical Context

The MCP73113T-16SI/MF implements a three-phase linear charging algorithm: preconditioning (10% I_REG until V_BAT ≥ 71.5% V_REG), constant-current fast charge (programmed via R_PROG), then constant-voltage regulation at 4.10 V with termination at 10% I_REG. Its internal P-channel MOSFET has 350 mΩ typical R_DS(on) at 105°C, enabling direct battery connection without external FETs.

Input protection includes 4.15 V UVLO with 100 mV hysteresis and 6.5 V OVP (MCP73113 variant) with 150 mV hysteresis. Thermal regulation begins before reaching 150°C shutdown, and battery short protection activates below 1.7 V with 25 mA recovery current - all operating across –40°C to +85°C ambient.

Key Specifications

Pinout & Package

Package: 10-lead DFN (3 mm × 3 mm) with exposed thermal pad (EP) for enhanced heat dissipation in space-constrained PCB layouts.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar linear Li-ion charge management applications.

Compared with MCP73113-06S/MF and BQ24040DRVR, the MCP73113T-16SI/MF uniquely combines 4.10 V regulation, integrated 6.5 V OVP, and factory-configured 10%/6 HR/95% parameters - delivering drop-in readiness for cost-sensitive, safety-critical portable devices without layout or firmware changes.

Availability

MCP73113T-16SI/MF is available at Aetrix Electronics and suitable for USB chargers, Bluetooth headsets, digital still cameras, and portable media players requiring stable component supply and long-term production continuity.

Supply support for MCP73113T-16SI/MF includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Microchip Technology Inc. is a leading provider of microcontrollers, analog, and Flash-IP solutions, serving automotive, industrial, and consumer markets with high-reliability silicon and development tools.

The MCP73113/4 product line delivers fully integrated, factory-configured linear Li-ion charge controllers targeting space- and cost-constrained portable electronics - emphasizing simplicity, safety, and minimal external components.

FAQ

What is the factory-set charge voltage for MCP73113T-16SI/MF?

The MCP73113T-16SI/MF is factory preset to 4.10 V constant-voltage regulation with ±0.5% tolerance across –5°C to +55°C. This value is laser-trimmed and non-adjustable - confirmed in Table 2 of DS20002183E and distinct from other variants like MCP73113-06S/MF (4.20 V). The MCP73113T-16SI/MF uses this voltage to optimize cycle life for mid-capacity Li-ion cells in portable audio devices.

Does MCP73113T-16SI/MF include input overvoltage protection, and what is its threshold?

Yes, the MCP73113T-16SI/MF includes integrated input overvoltage protection with a 6.5 V start threshold and 150 mV hysteresis - specific to the MCP73113 variant per Note 5 in DS20002183E. This protects against transient spikes from low-cost wall adapters and eliminates the need for external OVP circuitry. The MCP73113T-16SI/MF operates safely up to 18 V absolute maximum input voltage.

How is fast charge current programmed on MCP73113T-16SI/MF?

Fast charge current on the MCP73113T-16SI/MF is set using a single resistor (R_PROG) from PROG pin to VSS, supporting 130–1100 mA per Equation 5-1 in DS20002183E. For example, a 10 kΩ resistor yields ~130 mA, while 1.1 kΩ gives ~1000 mA. The MCP73113T-16SI/MF tolerates R_PROG values from 1–21 kΩ and enters standby if impedance exceeds 200 kΩ.

What does "Type 1" status output mean for MCP73113T-16SI/MF?

The MCP73113T-16SI/MF uses Type 1 status output: STAT is actively pulled low during all charge phases (precondition, fast charge, CV) and goes high-impedance (high-Z) at charge completion or fault - enabling direct LED drive with a pull-up resistor. Unlike Type 2, it does not flash. This behavior is factory-fixed and documented in Table 2 and Section 5.11 of DS20002183E for the MCP73113T-16SI/MF.

What safety timers are enabled on MCP73113T-16SI/MF?

The MCP73113T-16SI/MF has two factory-enabled safety timers: a 32-minute precondition timer and a 6-hour elapsed safety timer - both confirmed in Table 2 of DS20002183E. The elapsed timer resets on each mode transition and terminates charging if CV phase exceeds 6 hours, preventing thermal runaway. Neither timer is user-adjustable on this variant.