TPS92515HVQDGQRQ1 - 65V 2A Buck LED Driver, AEC-Q100 | Texas Instruments
料号： TPS92515HVQDGQRQ1 ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $3.85 | $3.85 |
| 10 | $3.42 | $34.20 |
| 100 | $2.95 | $295.00 |
| 500 | $2.55 | $1,275.00 |
| 1,000 | $2.18 | $2,180.00 |
| 2,500 | $1.86 | $4,650.00 |
TPS92515HVQDGQRQ1 概述
An LED driver is a power-management integrated circuit that regulates current through one or more LED strings to maintain consistent luminance regardless of input voltage, LED forward-voltage variation, or temperature. LED drivers sit hierarchically between DC-DC converters (broader switching-power category) and discrete linear current regulators; the buck (step-down) topology used in the TPS92515HV-Q1 family is the most common for high-current, moderate-to-high input-voltage strings because it delivers high efficiency (typically >90 percent) without the heat dissipation of linear regulators.
Key features include a 4.5-V to 65-V operational input range, integrated 200-mOhm N-channel FET, constant-off-time peak-current control, analog and shunt-PWM dimming capability, and AEC-Q100 Grade 1 qualification (operating from -40C to +125C). The HVSSOP-10 PowerPAD package exposes a thermal pad that lowers junction-to-ambient resistance (theta_JA approximately 50 C/W on a 4-layer JEDEC board), enabling 2-A continuous LED current without an external heatsink in properly laid-out designs. The high-side current-sense scheme eliminates the need for a ground-side shunt and avoids ground-loop noise coupling in long LED-cable harnesses.
The device uses constant-off-time peak-current control with a simple external RC network to program switching frequency, and the integrated FET removes a major source of layout-dependent ringing and EMI. Current calibration trims the nominal LED current at a single reference point, reducing string-to-string brightness mismatch that would otherwise require hand-binning.
Typical applications include automotive headlamps, daytime running lights, rear combination lamps, and turn signals, plus industrial high-bay lighting and architectural fixtures operating from 12-V or 24-V buses. Industrial LED signage, machine-vision illumination, and emergency-vehicle light bars are additional high-volume use cases. When VIN is above the LED string forward voltage by only a few volts, the driver remains efficient; when VIN is significantly higher, the duty cycle shrinks and switching losses dominate, so thermal layout becomes critical.
直接替换替代料： TPS92515HVQDGQRQ1 ——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： TPS92515HVQDGQRQ1 （相同外形与封装尺寸） ——差异在于 Input Voltage Range, MSL Level, Package, Topology, Dimming Method.
快速对比工具——选择替代料号进行并排对比：
TPS92515HVDGQR
✅ 直接替换📋 参考替代料（不在目录中）
TPS92515AHVQDGQRQ1
✅ 直接替换📋 参考替代料（不在目录中）
TPS92515HVQDGQTQ1
✅ 直接替换📋 参考替代料（不在目录中）
TPS92515QDGQRQ1
✅ 直接替换✓ 有现货
$2.18 / 个
查看数据手册 →TPS92515HVQDGQRQ1 最大额定值与电气特性
| 拓扑 | Buck (Step-Down) DC-DC Regulator |
| 输入电压范围 | 4.5 V to 65 V |
| 最大输出电流 | 2 A |
| 输出数量 | 1 |
| Integrated N-FET Rds(on) | 200 mOhm (typ) |
| Current Sense | High-side |
| Dimming Method | Analog and Shunt-PWM |
| Switching Control | Constant off-time peak current |
| 工作温度 | -40 C to +125 C |
| 封装 | 10-Pin HVSSOP (DGQ) with PowerPAD |
| 安装类型 | Surface Mount |
| AEC-Q100 Grade | Grade 1 |
| MSL 等级 | 2 (1 year floor life) |
| RoHS 状态 | Compliant |
| Lead Finish | NiPdAu (lead-free) |
| Supply Current (quiescent) | 1500 uA |
| Series | TPS92515 |
TPS92515HVQDGQRQ1 引脚配置
| 引脚 1 | VIN — Input supply voltage (4.5 V to 65 V) |
| 引脚 2 | SW — Switch node - connection to integrated N-FET drain and external inductor |
| 引脚 3 | GND — Ground return for internal circuitry |
| 引脚 4 | CS — Current sense - high-side connection to LED string |
| 引脚 5 | RT — Off-time programming resistor |
| 引脚 6 | IADJ — Analog dimming input (DC voltage sets LED current) |
| 引脚 7 | PWM — PWM dimming input / shunt-FET control |
| 引脚 8 | EN — Enable pin (active-high) |
| 引脚 9 | UVLO — Undervoltage lockout threshold set pin |
| 引脚 10 | PGND — Power ground for internal FET source |
典型应用
TPS92515HVQDGQRQ1 适用于 6 应用s: Automotive Headlamp LED Driver, Daytime Running Light (DRL) and Position Lamp, Rear Combination Lamp and Turn Signal, Industrial High-Bay LED Luminaire, Machine Vision and Inspection Illumination, Architectural and Stage LED Strip Driver.
Automotive Headlamp LED Driver
The TPS92515HVQDGQRQ1 is purpose-built for automotive headlamp LED strings because its 65-V input ceiling tolerates 12-V load-dump transients (per ISO 7637-2) and its 2-A integrated buck delivers hundreds of mA per LED without external FETs. Shunt-PWM dimming achieves the wide brightness ratios required for DRL-to-low-beam transitions, and high-side current sensing eliminates ground-loop noise that would otherwise corrupt PWM timing in long wire harnesses to the lamp housing.
推荐
Daytime Running Light (DRL) and Position Lamp
DRL and position-lamp modules need compact, efficient drivers with smooth PWM dimming for animation effects - the TPS92515HVQDGQRQ1 fits in the lamp housing directly thanks to its HVSSOP-10 footprint and integrated thermal pad. Analog dimming on the IADJ pin enables calibrated daytime/nighttime brightness levels without flicker, and AEC-Q100 Grade 1 qualification guarantees operation across automotive temperature extremes (-40C to +125C) seen behind the headlamp lens.
推荐
Rear Combination Lamp and Turn Signal
Rear lamps combine brake, tail, and turn functions in one housing, demanding a driver that can handle repetitive PWM cycles for animated turn signals and brake-force display. The TPS92515HVQDGQRQ1's constant-off-time control loop responds quickly to dimming commands while maintaining average current regulation, and its shunt-PWM path keeps the switching loop active during low-duty cycles - eliminating the audible ringing that plagues series-PWM drivers at dim settings.
推荐
Industrial High-Bay LED Luminaire
Industrial high-bay luminaires operating from 24-V or 36-V industrial buses benefit from the TPS92515HVQDGQRQ1's 65-V absolute maximum, which absorbs transient bus surges from motor switching. The integrated N-FET simplifies in-fixture PCB design, while the high-side current sense avoids ground-reference errors in long cable runs. The driver's high efficiency (>90 percent at moderate duty) cuts thermal stress inside the sealed luminaire enclosure.
推荐
Machine Vision and Inspection Illumination
Machine-vision illuminators need precise, repeatable current control so that camera exposure calibrations remain valid - the TPS92515HVQDGQRQ1's high-side current sense and calibration feature provide that repeatability. Stable LED output is critical for defect-detection accuracy in PCB AOI and food-inspection systems, where even 5 percent brightness drift can degrade false-reject rates. The driver's small footprint simplifies integrating the LED driver directly inside the ring-light housing.
推荐
Architectural and Stage LED Strip Driver
Architectural and stage LED strips need 0-10 V analog or DMX-decoded dimming that translates cleanly to constant current - the TPS92515HVQDGQRQ1's analog dimming input (IADJ) accepts a DC control voltage directly, enabling smooth fade transitions without PWM flicker. Its 65-V input also permits long LED string runs from 48-V theatrical power distributions. The shunt-PWM path preserves color consistency at low dim levels where series-PWM drivers introduce hue shift.
推荐
推荐产品汇总
工程参考数据： TPS92515HVQDGQRQ1 ——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 | TPS92515HVDGQR | TPS92515AHVQDGQRQ1 | TPS92515HVQDGQTQ1 | TPS92515QDGQRQ1 |
|---|---|---|---|---|---|
| Package | HVSSOP-10 (DGQ) PowerPAD | HVSSOP-10 (DGQ) PowerPAD - same | HVSSOP-10 (DGQ) PowerPAD - same | HVSSOP-10 (DGQ) PowerPAD - same | HVSSOP-10 (DGQ) PowerPAD - same |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Input Voltage Max | 65 V | 65 V - same | 65 V - same | 65 V - same | 42 V (lower) |
| Output Current Max | 2 A | 2 A - same | 2 A - same | 2 A - same | 2 A - same |
| AEC-Q100 Grade | Grade 1 (qualified) | Catalog (not qualified) | Grade 1 (qualified) | Grade 1 (qualified) | Grade 1 (qualified) |
| Dimming Method | Analog + Shunt-PWM | Analog + Shunt-PWM - same | Analog + Shunt-PWM - same | Analog + Shunt-PWM - same | Analog + Shunt-PWM - same |
| Integrated FET Rds(on) | 200 mOhm | 200 mOhm - same | 200 mOhm - same | 200 mOhm - same | 200 mOhm - same |
| Topology | Monolithic Buck | Monolithic Buck - same | Monolithic Buck - same | Monolithic Buck - same | Monolithic Buck - same |
关键差异点
- 65-V input ceiling tolerates automotive load-dump without external protection （对比 TPS92515QDGQRQ1)
- AEC-Q100 Grade 1 qualified for safety-critical automotive front lighting （对比 TPS92515HVDGQR)
- Shunt-PWM dimming achieves sub-1 percent dimming ratios without flicker （对比 TPS92611QDGNRQ1 (multi-channel controller))
设计说明
Estimated: at VIN=24 V, VLED=12 V (one LED string), and IOUT=1.5 A, the TPS92515HVQDGQRQ1 dissipates (24-12) x 1.5 = 18 W internally. With the PowerPAD soldered to 1 square inch of 2-oz copper (theta_JA approximately 50 C/W), the junction rise is 18 x 50 = 900 C - far above the 150 C junction limit. Derate to ~500 mA at this VIN/VLED ratio, or add an external thermal spreader. For typical 12-V headlamp use (VIN=12 V, VLED=9 V, IOUT=1 A), dissipation is 3 W and the PowerPAD alone is adequate.
Solder the exposed PowerPAD to a copper pour of at least 1 square inch with multiple thermal vias to an inner plane - this is mandatory, not optional, for 2-A operation. Keep the SW-node copper area minimal to reduce EMI; route the CS (high-side sense) trace as a short Kelvin connection from the sense resistor to the IC pin. Place the input decoupling capacitor (>= 1 uF X7R) within 3 mm of the VIN pin, and the bootstrap/charge-pump capacitor adjacent to SW to avoid ringing.
Do not operate the TPS92515HVQDGQRQ1 above 65 V on VIN - load-dump transients above 65 V require an external TVS clamp (e.g., SMAJ58A) at the input. The CS pin absolute maximum is lower than VIN; verify the high-side sense resistor stays within the IC's common-mode range. The shunt-PWM path requires an external MOSFET in parallel with the LED string - omitting this disables high-ratio PWM dimming and may cause instability at low duty cycles.
Separate the power ground (PGND) and signal ground (GND) at the IC, joining them at a single point at the input capacitor ground. This prevents switching noise from corrupting the analog IADJ reference. Minimize the loop area formed by VIN, the integrated FET, the external inductor, and CS - smaller loops mean lower EMI and less parasitic ringing that could exceed the SW-node abs-max.
合规信息
AEC-Q100 Grade 1 qualified per the -Q1 suffix in the MPN. Lead-free NiPdAu finish per the verified distributor listings. RoHS and REACH compliance per TI product page.
