Texas Instruments BQ24010DRCR

Overview

BQ24010DRCR from Texas Instruments is a single-chip Li-ion linear charge management IC for space-constrained handheld devices, featuring ±0.5% voltage regulation accuracy, 4.2 V fixed output voltage, up to 1-A programmable charge current via external ISET resistor, and integrated power FET with reverse leakage protection. It operates in conditioning, constant-current, and constant-voltage phases and supports regulated/unregulated DC inputs.

For engineers reviewing the BQ24010DRCR datasheet, BQ24010DRCR pinout, BQ24010DRCR application, or BQ24010DRCR equivalent, key selection criteria include its 3-mm × 3-mm QFN-10 package, absence of CE/TTE/TS pins (distinguishing it from bq24012/bq24014), battery insertion/removal detection, pre-charge safety timer, and open-collector STAT1/STAT2 status outputs for LED or system interface.

Technical Context

The BQ24010DRCR implements a three-phase charging algorithm-pre-conditioning (at 10–100 mA when BAT < 2.95 V), constant-current (programmable up to 1 A), and constant-voltage (4.2 V ±0.5%)-with termination by minimum current (I_TERM) and backup 20.65-s fast-charge timer. It lacks CE, TTE, and TS pins, making it the base variant in the bqTINY™ family optimized for cost-sensitive, fixed-function applications.

Charge control is fully autonomous: automatic sleep mode on VCC removal, battery absent detection using I_DETECT (–4.6 mA) and t_DETECT (125 ms), and fault indication via STAT1/STAT2 open-collector outputs. Power path includes integrated reverse-blocking protection and dropout voltage of 650–790 mV at 1 A, enabling low-dropout operation from 3 V input.

Key Specifications

Pinout & Package

Package: 3-mm × 3-mm MLP (QFN)-10 with exposed thermal pad connected internally to VSS; requires PCB copper pad and via matrix for thermal dissipation per JEDEC High-K board guidelines.

Key Features

Applications

Equivalent & Alternatives

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

Compared with BQ24012DRCR and BQ24013DRCR, the BQ24010DRCR offers the lowest BOM cost and smallest footprint by omitting CE and TS pins-making it ideal for volume production of fixed-function portable devices where those features are unnecessary.

Availability

BQ24010DRCR is available at Aetrix Electronics and suitable for cellular phones, MP3 players, digital cameras, and internet appliances requiring stable component supply, long-term lifecycle support, and consistent parametric performance across production batches.

Supply support for BQ24010DRCR 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 BQ24010DRCR-is designed specifically for space-constrained portable electronics, integrating precision Li-ion charge control, safety features, and minimal external components into ultra-small QFN packages.

FAQ

What is the fixed charge voltage of the BQ24010DRCR?

The BQ24010DRCR has a fixed charge voltage of 4.2 V with ±0.5% regulation accuracy. This value is factory-trimmed and not adjustable; it is optimized for standard single-cell Li-ion batteries and ensures compliance with JEITA and IEC 61960 specifications. The BQ24010DRCR does not support alternate voltages like 4.36 V-that option is exclusive to the BQ24018 variant.

Does the BQ24010DRCR support charge enable (CE) functionality?

No, the BQ24010DRCR does not include a CE (charge enable) input pin. Its pinout-confirmed in the DRC package diagram and Table 1-omits CE, TTE, and TS pins, distinguishing it from variants like BQ24012DRCR and BQ24013DRCR. Charging begins automatically when valid VCC is applied; no external enable signal is required or supported.

How does the BQ24010DRCR detect battery insertion or removal?

The BQ24010DRCR detects battery presence using a two-stage test triggered when BAT voltage falls to the recharge threshold (V_RCH = VO(REG) – 0.1 V). It first applies I_DETECT (–4.6 mA) for 125 ms, then I_PRECHG for the same duration. Failure of both tests indicates battery absence and sets STAT1/STAT2 to OFF/OFF. This autonomous method requires no host processor interaction.

What is the maximum continuous charge current supported by the BQ24010DRCR?

The BQ24010DRCR supports up to 1 A of continuous charge current, programmable via an external resistor on the ISET pin. With V_SET = 2.50 V (typical) and K_SET = 335 (typical), a 2.5 kΩ resistor yields ~1 A output. Derating is required above 40°C ambient per its 0.021 W/°C thermal derating factor, and PCB copper area must meet TI's QFN thermal guidelines.

What happens to the BQ24010DRCR when input power (VCC) is removed?

When VCC is removed, the BQ24010DRCR enters sleep mode with only 5 μA quiescent current. In this state, STAT1, STAT2, and PG outputs go high-impedance (default OFF), the internal power FET turns off, and battery reverse leakage is blocked. The device remains in sleep until VCC is reapplied above VPOR (2.5 V), at which point it resumes normal operation without requiring reset.