Texas Instruments BQ24010DRCRG4

Overview

BQ24010DRCRG4 from Texas Instruments is a single-chip Li-ion linear charge management IC for space-constrained handheld devices. It delivers up to 1-A charge current, regulates battery voltage at 4.2 V ±0.5%, and supports pre-charge, constant-current, and constant-voltage charging phases. It integrates power FET, reverse leakage protection, and dual open-collector status outputs (STAT1/STAT2) for LED or system interface in portable battery-powered systems.

For engineers reviewing the BQ24010DRCRG4 datasheet, BQ24010DRCRG4 pinout, BQ24010DRCRG4 application, or BQ24010DRCRG4 equivalent, key selection criteria include its 4.2-V fixed regulation, absence of temperature sensing (TS pin), lack of PG output, and compatibility with regulated/unregulated DC inputs in compact QFN packages.

Technical Context

The BQ24010DRCRG4 implements a three-phase linear charging algorithm-pre-conditioning (at 10–100 mA), constant-current (programmable up to 1 A via ISET resistor), and constant-voltage (4.2 V ±0.5%). Charge termination occurs via minimum current detection (I_TERM = K_SET × V_TERM/R_SET) backed by a 20.65-s safety timer.

It features dual open-collector status outputs (STAT1/STAT2) for real-time state indication, CE input for charge enable/disable control, and integrated reverse leakage protection to prevent battery discharge when input is absent. No TS or PG pins are present-confirmed by DRC package top view and Table 1 terminal functions.

Key Specifications

Pinout & Package

Package: 10-pin 3 mm × 3 mm MLP (QFN) with exposed thermal pad connected to VSS. Requires PCB copper pour and thermal vias under pad for thermal performance (θ_JA = 47°C/W).

Key Features

Applications

Equivalent & Alternatives

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

Compared with BQ24012DRCRG4 and BQ24013DRCRG4, the BQ24010DRCRG4 provides the most minimal feature set-omitting PG, TS, and TTE-making it optimal for cost-sensitive, space-constrained applications where only basic CC/CV charging and status indication are needed.

Availability

BQ24010DRCRG4 is available at Aetrix Electronics and suitable for smartphones, digital cameras, MP3 players, and PDAs requiring stable component supply, long-term lifecycle support, and consistent parametric performance across production batches.

Supply support for BQ24010DRCRG4 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

Texas Instruments is a global semiconductor leader specializing in analog, embedded processing, and power management technologies, with decades of expertise in battery charging solutions.

The bqTINY™ product line-including BQ24010DRCRG4-is designed specifically for space-constrained portable electronics, integrating precision Li-ion charge control, protection, and status reporting into ultra-small QFN packages.

FAQ

What is the fixed charge voltage of the BQ24010DRCRG4?

The BQ24010DRCRG4 has a fixed charge voltage of 4.2 V with ±0.5% regulation accuracy across temperature and process variation. This value is factory-trimmed and not user-adjustable-ensuring compliance with standard single-cell Li-ion battery specifications and eliminating external resistor networks for voltage setting. The BQ24010DRCRG4 does not support 4.36-V variants like the BQ24018.

Does the BQ24010DRCRG4 support temperature monitoring?

No, the BQ24010DRCRG4 does not include a temperature sense (TS) pin or associated circuitry. Its pinout-confirmed by TI's SLUS530K datasheet Figure "DRC PACKAGE (TOP VIEW)" and Table 1-lists only IN, VCC, OUT, VSS, STAT1, STAT2, BAT, ISET, and CE. Temperature qualification features apply only to versions such as BQ24014 and BQ24020 that explicitly include the TS pin.

How is charge current programmed on the BQ24010DRCRG4?

Charge current on the BQ24010DRCRG4 is programmed by connecting an external resistor (R_SET) between the ISET pin and VSS. The nominal output current is calculated as I_O(OUT) = K_SET × V_SET/R_SET, where V_SET = 2.50 V (typical) and K_SET = 1000 (typical). For example, a 2.5-kΩ resistor sets ~1-A charge current. The BQ24010DRCRG4 uses the same ISET equation for pre-charge, taper, and termination thresholds.

What status indications does the BQ24010DRCRG4 provide?

The BQ24010DRCRG4 provides two open-collector status outputs: STAT1 and STAT2. Their logic combinations indicate charge-in-progress (STAT1=ON, STAT2=OFF), charge complete (STAT1=OFF, STAT2=ON), battery absent or fault (both OFF), and sleep mode (both OFF when VCC < VPOR). These outputs drive LEDs directly or interface with microcontroller GPIOs without pull-up resistors on the IC side-external pull-ups are required.

Is the BQ24010DRCRG4 compatible with USB power sources?

Yes, the BQ24010DRCRG4 operates with USB power sources: its input voltage range (3 V to 16.5 V) covers USB 2.0 (5 V ±5%) and USB BC1.2 compliant adapters. It tolerates unregulated supplies and includes short-circuit protection. However, it lacks a dedicated USB enumeration or current-limiting interface-system-level current limiting (e.g., USB port controller or polyfuse) must be implemented externally to meet USB spec compliance.