BQ24133RGYR - 2.5A 1.6MHz Sync Buck Charger | TI
部品番号: BQ24133RGYR ✓ 生産中| 数量 | 単価 | 小計 |
|---|---|---|
| 1 | $2.35 | $2.35 |
| 10 | $2.11 | $21.10 |
| 100 | $1.9 | $190.00 |
| 500 | $1.78 | $890.00 |
| 1,000 | $1.69 | $1,690.00 |
BQ24133RGYR 概要
A battery charger IC is a power-management device that safely controls charging current and voltage for rechargeable cells. The BQ24133 uses a synchronous buck converter topology to step down input voltage efficiently, minimizing heat compared to linear chargers. It belongs to the battery management IC hierarchy within power management semiconductors, essential for portable electronics, tools, and medical devices.
Key features include high-accuracy regulation with plus/minus 1% charge voltage accuracy, a wide input range from a DC source as high as 17V including automotive car batteries, and an adjustable input overvoltage limit via the OVPSET pin with 30V rating on AVCC, ACP, and ACN pins. An integrated power path selector lets the system run from the adapter while charging the battery, and an external thermistor enables charging only within a safe temperature window.
Technically, the constant-frequency synchronous PWM controller at 1.6 MHz permits small inductors and capacitors. Charge current is programmable via an external resistor, and cell count is configured for 1, 2, or 3 series cells. Thermal regulation reduces charge current when die temperature exceeds threshold, and a low-power sleep mode minimizes battery drain when input is removed. On high-voltage DC insertion, Q1 and Q2 remain off to protect the system.
Typical applications include smartphones, tablets, digital cameras, power banks, solar-powered chargers, battery-powered industrial equipment, and medical devices.
Design tip: ensure adequate copper pour for thermal dissipation and place input/output capacitors close to the IC; select the inductor based on the 1.6-MHz switching frequency to minimize ripple.
ドロップイン代替品: BQ24133RGYR — 同一パッケージでピン互換。PCBの作り直しが必要な異なるパッケージの部品は除外されています。
このシリーズのバリエーション
同一シリーズでドロップイン互換のモデル: BQ24133RGYR （同一形状・フットプリント） — 相違点: Battery Temperature Monitoring, Cell Count.
クイック比較ツール — 並列比較する代替部品を選択:
BQ24133QRGYR
✅ ドロップイン✓ 在庫あり
$2.53 / 個
データシートを見る →BQ24130RGYR
⚡ 同一パッケージ ⚠️ 仕様未検証📋 参考代替品（カタログ未掲載）
BQ24133RGYR 仕様
| Battery Chemistry | Li-Ion / Li-Polymer |
| Cell Count | 1, 2, or 3 series cells |
| Maximum Charge Current | 2.5 A |
| Charger Topology | Synchronous buck (switch-mode) |
| スイッチング周波数 | 1.6 MHz |
| Input Voltage (DC source) | Up to 17 V (car battery compatible) |
| Pin Voltage Rating (AVCC/ACP/ACN) | 30 V |
| Charge Voltage Accuracy | ±1% |
| Integrated MOSFETs | Two N-channel power MOSFETs |
| Power Path Management | Yes (external power path selector) |
| Input OVP | Adjustable via OVPSET pin |
| Battery Temperature Monitoring | External thermistor (TS pin) |
| Thermal Regulation | Charge current reduction at high die temperature |
| 動作温度 | -40°C to +85°C |
| パッケージ | VQFN-24 (RGY) 5.5 x 3.5 mm |
| 実装タイプ | Surface Mount |
| MSLレベル | 2 (260°C, 1 year) |
| Sleep Mode | Yes (low-power when input removed) |
BQ24133RGYR ピン構成
| ピン 1 | AVCC — Analog input supply, 30V rated |
| ピン 4 | ACP — Adapter/input power sense node, 30V rated |
| ピン 5 | ACN — Input current sense node, 30V rated |
| ピン 6 | OVPSET — Adjustable input overvoltage limit setpoint |
| ピン 10 | ISET — Charge current programming (external resistor) |
| ピン 12 | TS — Battery temperature thermistor input |
| ピン 13 | VFB / CELL — Voltage feedback / cell count select (1-3 cells) |
| ピン 20 | PH — Switching node between integrated MOSFETs |
| ピン 24 | PGND — Power ground |
| ピン 17 | BTST / BOOT — High-side MOSFET driver bootstrap |
主な用途
BQ24133RGYR の用途: 6 件s: Smartphones and Tablets, Power Banks, Automotive and 12V Bus Charging, Solar-Powered Chargers, Medical and Portable Instruments, Industrial Handheld Equipment.
Smartphones and Tablets
The BQ24133's 2.5A charge current and 1.6-MHz switching frequency enable rapid charging with small external inductors and capacitors, ideal for thin portable devices. The integrated power path selector lets the phone run from the adapter while charging, supporting instant power-on with a deeply discharged battery. Thermal regulation prevents overheating in enclosed enclosures. Sourced from TI datasheet Rev. D typical applications.
おすすめ
Power Banks
Power banks benefit from the BQ24133's synchronous buck efficiency and integrated MOSFETs, which reduce BOM count and board area. The 1-3 cell configuration covers common 1S and 2S/3S pack architectures, while the external thermistor on TS pin enables safe charging of Li-Polymer pouch cells. The 17V maximum input allows charging from 12V adapters as well as 5V sources.
おすすめ
Automotive and 12V Bus Charging
With a DC input as high as 17V including car batteries and 30V transient rating on AVCC, ACP, and ACN pins, the BQ24133 survives automotive load-dump-adjacent conditions. The OVPSET pin adjusts the input overvoltage limit to match 12V vehicle bus ranges. The Q1 variant (BQ24133QRGYRQ1) provides AEC-Q100 qualification for production automotive designs.
おすすめ
Solar-Powered Chargers
The BQ24133's 17V input limit and adjustable input OVP via OVPSET accommodate typical 12V solar panels. The stand-alone operation requires no host microcontroller, reducing firmware complexity in solar garden lights and remote sensors. Designers should verify panel IV characteristics since the part lacks dedicated MPPT; adding input current limiting through the OVPSET network helps avoid panel collapse.
おすすめ
Medical and Portable Instruments
Battery-powered medical devices require accurate and safe charging. The BQ24133's ±1% charge voltage accuracy maximizes capacity use without overcharging cells, and the thermistor window prevents charging outside safe temperatures - a key patient-safety requirement. The low-power sleep mode minimizes battery drain when the charger input is removed, extending shelf life of portable diagnostic instruments.
おすすめ
Industrial Handheld Equipment
Two-way radios, barcode scanners, and test tools charge from 12V industrial adapters through the BQ24133's wide input range. The 30V pin rating on the ACN/ACP pins adds robustness against adapter hot-plug transients, and the power path selector keeps the device operational during charging - critical for duty-cycle equipment. Thermal regulation protects against high-ambient dock charging conditions.
おすすめ
おすすめ製品の概要
エンジニアリング参考データ: BQ24133RGYR — 比較、設計ガイダンス、コンプライアンス情報。
選定ガイド
代替品との比較
| パラメータ | この製品 | BQ24133QRGYRQ1 | BQ24130RGYR |
|---|---|---|---|
| Package | VQFN-24 (RGY) 5.5x3.5 mm | VQFN-24 (RGY) - same | VQFN-24 (RGY) - same |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments |
| Max Charge Current | 2.5 A | 2.5 A | 2.5 A |
| Cell Count | 1-3 cells | 1-3 cells | 1-3 cells |
| Switching Frequency | 1.6 MHz | 1.6 MHz | 1.6 MHz |
| Grade | Commercial/Industrial | AEC-Q100 (Q1) | Commercial |
| Power Path Selector | Yes | Yes | Yes |
主な差別化要因
- Standard grade at lower cost （vs BQ24133QRGYRQ1)
- Stand-alone operation with integrated MOSFETs （vs BQ24610QRGERQ1)
- 1.6 MHz switching frequency （vs BQ24130RGYR)
設計ノート
At 2.5A charge current with a large VIN-VOUT delta, the integrated MOSFETs dissipate significant power. Use the VQFN-24 exposed thermal pad with a solid ground plane and at least 4-6 thermal vias to inner layers. The BQ24133's thermal regulation feature will reduce charge current if the die overheats, which extends charge time - good copper design prevents this in enclosed products.
At 1.6 MHz switching frequency, keep the power loop (ACP - ACN - PH - inductor - battery) as short and tight as possible. Place input ceramic capacitors within 2-3 mm of AVCC/ACP pins and output capacitors at the battery node. Follow the PCB layout example in TI datasheet Rev. D, section on application information.
Size the inductor for the 1.6-MHz frequency with adequate saturation current above the 2.5A charge current plus ripple. Set OVPSET correctly for the input source: too low a threshold causes nuisance shutdowns with long adapter cables. Use 1% tolerance resistors for voltage feedback to preserve the ±1% charge voltage accuracy. Do not omit the TS thermistor network - charging outside the safe window risks cell damage.
コンプライアンス情報
MSL Level 2 (260°C, 1 year) per PartGenie. AEC-Q100 qualification applies to the BQ24133QRGYRQ1 variant, not the standard BQ24133RGYR. Confirm RoHS/REACH status on TI product page.
