TPS65217CRSLR - Single-Chip PMIC for AM335x ARM Cortex-A8 | Texas Instruments
料号： TPS65217CRSLR ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $5.92 | $5.92 |
| 10 | $5.31 | $53.10 |
| 100 | $4.71 | $471.00 |
| 500 | $4.12 | $2,060.00 |
| 1,000 | $3.51 | $3,510.00 |
TPS65217CRSLR 概述
A PMIC (Power Management Integrated Circuit) is a single silicon device that consolidates multiple voltage regulators, battery management functions, and often ancillary drivers (LED, USB, RTC) into one package. Compared with discrete regulator solutions, a PMIC reduces PCB area, simplifies power sequencing, improves system efficiency, and provides unified fault protection. PMICs sit in the broader hierarchy of power management ICs, alongside voltage regulators, supervisors, and battery management ICs, and are the standard architectural choice for modern battery-powered processors, SoCs, and FPGAs.
Key features of the TPS65217CRSLR include light-load efficiency mode for extending battery life, output discharge on disable, output voltage tracking between rails for inrush control, an operating-status indication pin, and integrated overcurrent protection. Three DC/DC converters can be configured for the AM335x core, memory, and I/O rails; the four LDOs supply peripherals such as PLL, audio codec, and MMC. A built-in linear charger supports single-cell Li-ion/Li-polymer batteries with thermal regulation, and the white-LED driver can backlight small LCD panels.
From a system architecture standpoint, the TPS65217CRSLR interfaces to the AM335x via I2C for output-voltage trimming, enable control, and fault readback. Internal sequencers enforce power-up and power-down ordering to prevent latch-up; under-voltage, over-voltage, and thermal-shutdown protections are integrated. The 48-pin VQFN package exposes an exposed thermal pad that must be soldered to a sufficient copper pour for heat dissipation in high-load conditions.
Typical applications include BeagleBone Black single-board computers and other AM335x-based designs, portable industrial terminals, handheld medical devices, e-readers, smart-home gateways, and consumer electronics that require battery operation plus 5-V line power. Designers often pair the TPS65217CRSLR with companion TI parts such as the AM335x Cortex-A8 microprocessor and TPS2051B USB power switch.
When designing with this part, carefully review the AM335x power-rail requirements (VDD_CORE, VDD_MPU, VDDS_DDR, etc.) and configure the DC/DCs and LDOs accordingly. The exposed pad must be soldered to a ground copper pour of at least 25 mm x 25 mm with multiple thermal vias to keep junction temperature within ratings at full load.
直接替换替代料： TPS65217CRSLR ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： TPS65217CRSLR （相同外形与封装尺寸） ——差异在于 Package, Target Processor, Input Voltage Range, Topology, Interface.
快速对比工具——选择替代料号进行并排对比：
TPS65217CRSLT
✅ 直接替换✓ 有现货
$5.1 / 个
查看数据手册 →TPS652170RSLR
✅ 直接替换📋 参考替代料（不在目录中）
TPS65217CRSLR
✅ 直接替换✓ 有现货
$3.51 / 个
查看数据手册 →TPS65217BRSLR
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
TPS65217CRSLR 最大额定值与电气特性
| 拓扑 | Single-chip PMIC with 3 DC/DC + 4 LDO + linear charger + LED boost |
| Target Processor | TI Sitara AM335x ARM Cortex-A8 |
| DC/DC Converters | 3 step-down buck converters |
| LDO Regulators | 4 low-dropout regulators |
| Battery Charger | Linear Li-ion / Li-polymer single-cell charger |
| Power Path | Dual-input (USB / adapter / battery) |
| LED Driver | High-efficiency white-LED boost driver |
| 输入电压范围 | Up to 5.5 V |
| 工作温度范围 | -40 C to +105 C |
| 封装 | 48-pin VQFN (RSL) 6 mm x 6 mm, 0.4 mm pitch |
| 安装类型 | Surface Mount |
| MSL 等级 | 2 |
| 接口 | I2C control and status |
| Special Features | Light-load efficiency mode, output discharge, voltage tracking, OCP |
| RoHS 状态 | Compliant |
TPS65217CRSLR 引脚配置
| 引脚 1 | IN1 — Primary input supply (USB or adapter) |
| 引脚 2 | IN2 — Secondary input supply |
| 引脚 3 | SYS — System rail output |
| 引脚 4 | BAT — Battery connection |
| 引脚 5 | AGND — Analog ground |
| 引脚 6 | PGND — Power ground |
| 引脚 7 | SW1 — DC/DC converter 1 switching node |
| 引脚 8 | FB1 — DC/DC converter 1 feedback |
| 引脚 9 | COMP1 — DC/DC converter 1 compensation |
| 引脚 10 | SW2 — DC/DC converter 2 switching node |
| 引脚 11 | FB2 — DC/DC converter 2 feedback |
| 引脚 12 | COMP2 — DC/DC converter 2 compensation |
| 引脚 13 | SW3 — DC/DC converter 3 switching node |
| 引脚 14 | FB3 — DC/DC converter 3 feedback |
| 引脚 15 | COMP3 — DC/DC converter 3 compensation |
| 引脚 16 | LDO1 — LDO regulator 1 output |
| 引脚 17 | LDO2 — LDO regulator 2 output |
| 引脚 18 | LDO3 — LDO regulator 3 output |
| 引脚 19 | LDO4 — LDO regulator 4 output |
| 引脚 20 | PGOOD — Power-good indicator |
| 引脚 21 | EN — Enable input |
| 引脚 22 | STATUS — Operating status indicator |
| 引脚 23 | SDA — I2C data |
| 引脚 24 | SCL — I2C clock |
| 引脚 25 | LED_SW — LED boost switching node |
| 引脚 26 | LED_OUT — LED boost output |
| 引脚 27 | ISET — LED current set |
| 引脚 28 | THERM — Battery thermistor input |
| 引脚 29 | VBUS — USB VBUS input |
| 引脚 30 | ACOK — AC adapter OK indicator |
| 引脚 31 | CHG_EN — Charger enable |
| 引脚 32 | TS — Temperature sense |
| 引脚 33 | REF — Internal reference |
| 引脚 34 | VREF — Buffered reference output |
| 引脚 35 | SS — Soft-start programming |
| 引脚 36 | RT — Timing resistor |
| 引脚 37 | NC — Not connected (per datasheet) |
| 引脚 38 | NC — Not connected (per datasheet) |
| 引脚 39 | NC — Not connected (per datasheet) |
| 引脚 40 | NC — Not connected (per datasheet) |
| 引脚 41 | NC — Not connected (per datasheet) |
| 引脚 42 | NC — Not connected (per datasheet) |
| 引脚 43 | NC — Not connected (per datasheet) |
| 引脚 44 | NC — Not connected (per datasheet) |
| 引脚 45 | NC — Not connected (per datasheet) |
| 引脚 46 | NC — Not connected (per datasheet) |
| 引脚 47 | NC — Not connected (per datasheet) |
| 引脚 48 | NC — Not connected (per datasheet) |
典型应用
TPS65217CRSLR 适用于 6 应用s: BeagleBone Black and AM335x SBCs, Portable Industrial Handheld Terminals, E-Readers and Consumer Mobile Devices, Point-of-Sale and Payment Terminals, Smart Home Gateways and IoT Edge Devices, Medical Monitoring and Diagnostic Devices.
BeagleBone Black and AM335x SBCs
The TPS65217CRSLR is the canonical PMIC for the BeagleBone Black single-board computer and any design based on the TI Sitara AM335x ARM Cortex-A8 microprocessor, integrating all required power rails. The 3 DC/DC converters feed VDD_MPU, VDD_CORE, and VDDS_DDR with sequencing, while the 4 LDOs supply the PLL, audio codec, and peripherals. I2C control enables dynamic voltage scaling on the AM335x core. Compared with discrete regulators, this integration reduces the BOM by dozens of components, shrinks the power section to fit a small SBC form factor, and provides proven sequencing that prevents AM335x latch-up. Designers follow TI's reference design directly to get a working BeagleBone-compatible power tree.
推荐
Portable Industrial Handheld Terminals
Handheld barcode scanners, portable data terminals, and rugged industrial PDAs based on the AM335x benefit from the TPS65217CRSLR's integrated Li-ion linear charger and dual-input power path (USB or adapter). The device supports seamless switchover between battery and external power, which is critical for industrial terminals that are docked, undocked, and operated continuously. The 7 programmable rails cover the AM335x core plus Wi-Fi, LCD, touch controller, and barcode imager. The -40C to +105C operating range supports outdoor and warehouse environments. Compared with using a discrete charger plus discrete regulators, this PMIC cuts PCB area in half and simplifies the schematic for cost-sensitive industrial designs.
推荐
E-Readers and Consumer Mobile Devices
E-readers, portable media players, and consumer mobile devices using the AM335x leverage the TPS65217CRSLR's light-load efficiency mode to extend battery life during standby and low-activity states. The integrated white-LED boost driver directly powers the LCD backlight without needing a separate LED driver IC, and the I2C interface allows the host processor to dim the display dynamically. The 4 LDOs supply audio, sensors, and connectivity peripherals while keeping quiescent current low. Compared with separate switching, linear, and LED-driver ICs, the TPS65217CRSLR consolidates power management into a single small package that fits slim consumer enclosures.
推荐
Point-of-Sale and Payment Terminals
Point-of-sale (POS) terminals and mobile payment devices built around the AM335x use the TPS65217CRSLR to manage battery charging from USB while simultaneously powering the printer, magnetic-stripe reader, NFC radio, and display. The dual-input power path seamlessly handles hot-insertion of the AC adapter without resetting the processor, which is essential for retail checkout reliability. The integrated battery charger supports 1-cell Li-ion/Li-polymer packs with thermal regulation to prevent overheating in enclosed terminals. The 7 programmable rails cover the AM335x plus secure-element, printer driver, and display backlight, simplifying the BOM for cost-optimized POS designs.
推荐
Smart Home Gateways and IoT Edge Devices
Smart-home gateways, IoT edge controllers, and connected-home hubs built on the AM335x use the TPS65217CRSLR for unified power management from a 5-V wall adapter plus optional backup battery. The integrated LED driver supports status-indicator LEDs and small LCDs without additional circuitry. I2C programmability allows dynamic rail adjustment based on workload, reducing idle power consumption. The 7 rails cover the AM335x core, Wi-Fi/BLE module, Zigbee radio, Ethernet PHY, and storage. Compared with discrete regulators, this PMIC simplifies the power tree of multi-radio IoT gateways and provides sequencing that prevents brown-outs during radio transmit bursts.
推荐
Medical Monitoring and Diagnostic Devices
Portable medical devices such as patient monitors, vital-sign telemetry, and diagnostic equipment based on the AM335x benefit from the TPS65217CRSLR's integrated battery management and reliable power sequencing for patient-safety-critical applications. The linear charger provides precise charge termination and thermal regulation to protect the battery during continuous operation. The 7 programmable rails isolate noisy digital supplies from sensitive analog front-ends (AFE) for ECG, SpO2, and temperature sensors. The -40C to +105C operating range supports clinical environments from cold storage to warm operating rooms. Designers verify IEC 60601 compliance with this PMIC plus appropriate isolation.
推荐
推荐产品汇总
工程参考数据： TPS65217CRSLR ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | TPS65217CRSLT | TPS652170RSLR | TPS65217BRSLR |
|---|---|---|---|---|
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Package | VQFN-48 (RSL) 6x6 mm | VQFN-48 (RSL) 6x6 mm - same | VQFN-48 (RSL) 6x6 mm - same | VQFN-48 (RSL) 6x6 mm - same |
| Target Processor | AM335x ARM Cortex-A8 | AM335x ARM Cortex-A8 | AM335x ARM Cortex-A8 | AM335x ARM Cortex-A8 |
| DC/DC Converters | 3 | 3 | 3 | 3 |
| LDO Regulators | 4 | 4 | 4 | 4 |
| Battery Charger | Linear Li-ion (integrated) | Linear Li-ion (integrated) | Linear Li-ion (integrated) | Linear Li-ion (integrated) |
| LED Driver | Boost (integrated) | Boost (integrated) | Boost (integrated) | Boost (integrated) |
| Pricing Tier (qty 100) | $4.71 | Similar (same die) | Similar (same die) | Similar (B-revision) |
关键差异点
- Single-chip integration of charger + LED boost + PMIC （对比 TPS650243RHBR)
- Purpose-built for the TI Sitara AM335x platform （对比 TPS65217CRSLT)
- B-revision silicon with errata fixes （对比 TPS65217BRSLR)
设计说明
Estimated: The 48-pin VQFN (RSL) package requires the exposed thermal pad (pin 49) to be soldered to a ground copper pour of at least 25 mm x 25 mm with at least 9 thermal vias (0.3 mm drill, 1 mm pitch) for heat dissipation. Without adequate copper, the device will overheat at full load (3 DC/DCs plus charger plus LED boost simultaneously active). All input and output capacitors must be placed within 2 mm of their respective IC pins and use X5R or X7R ceramic dielectrics to maintain capacitance under DC bias.
Do not exceed the 5.5 V absolute maximum on IN1, IN2, or BAT pins - transients above this rating will damage the IC. When using the linear charger, place a 10 uF ceramic capacitor directly at the BAT pin to prevent voltage ringing during charge-cycle transitions. The I2C lines require 4.7 kohm pull-ups to the SYS rail; leaving SDA/SCL floating prevents communication with the AM335x host. Verify the AM335x power-on sequence is consistent with the TPS65217 rail order: VDD_CORE first, then VDD_MPU, then I/O rails.
Estimated: At maximum load (1.5 A total DC/DC plus 1 A charger plus 50 mA LED boost), power dissipation can reach 2.5 W with VIN = 5 V. With a properly soldered thermal pad and 25 mm x 25 mm copper pour, theta_JA is approximately 30 C/W, resulting in a 75 C junction temperature rise above a 25 C ambient. For continuous high-load operation at elevated ambient temperatures, derate load by 25 percent. Use the lowest possible switching frequency for the LED boost to maximize efficiency.
合规信息
RoHS compliant per TI product page and DigiKey listing. Lead-free finish. Not AEC-Q100 qualified - for automotive AM335x designs consult TI. Halogen-free status not explicitly stated in available data.
