STHV748S

批量生产

四通道+/- 90 V、+/- 2 A、3/5级增强ESD保护高速超声脉冲发生器

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产品概述

描述

This monolithic, high-voltage, high-speed pulser generator features four independent channels. It is designed for medical ultrasound imaging applications, but can also be used to drive piezoelectric, capacitive or MEMS based transducers. The STHV748S is composed of a controller logic interface circuit, level translators, MOSFET gate drivers, noise blocking diodes, and high-power P-channel and N-channel MOSFETs as the output stage for each channel. It also includes clamping-to-ground circuitry, anti-leakage, anti-memory effect block, thermal sensor, and a T/R switch which guarantees effective decoupling during the transmission phase. The STHV748S also includes self-biasing and thermal shutdown blocks.
Each channel can support up to five active output levels with two half bridges. The output stage of each channel is able to provide ±2 A peak output current. In order to reduce power dissipation during continuous wave mode, a dedicated half-bridge is available and the peak current is limited to 0.6 A.
An ESD reinforced structure was developed to prevent high voltage overshoots and inrush current due to cabled transducer reflections. Each HV output is supported by a dedicate HV diode network to withstand possible reflections, mitigating excessive voltage overshoot that could lead to device damage.
  • 所有功能

    • Pinout compatibility with STHV748
    • Recirculation current protection
    • 0 to ±90 V output voltage
    • Up to 20 MHz operating frequency
    • Embedded low-power, floating high-voltage drivers (external voltage rails can be also used)
    • Mode operations:
      • 3/5-level output waveform
      • ±2 A source and sink current
      • Down to ≤ 20 ps jitter
      • Anti-cross conduction function
      • Low 2nd harmonic distortion
    • Fully integrated clamping-to-ground function
      • 8 Ω synchronous active clamp
      • Anti-leakage on output node
    • Dedicated half bridge for continuous wave (CW) operations
      • ≤ 0.1 W power consumption
      • ±0.6 A source and sink current
      • 205 fs RMS jitter [100 Hz-20 kHz]
    • Fully integrated T/R switch
      • 13.5 Ω on-resistance
      • HV MOS topology to minimize current consumption
      • Up to 300 MHz BW
      • Receiver multiplexing function
    • 1.8 V to 3.6 V CMOS logic interface
      • New digital input compatibility @ 1.8 V
    • Auxiliary integrated circuits
      • Noise blocking diodes
      • Fully self-biasing architecture
      • Anti-memory effect for all internal HV nodes
      • Thermal protection
      • Standby function
      • Reinforced diodes on HV outputs for protection by recirculation current
    • Latch-up free due to HV SOI technology
    • Very few external passive components needed

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EDA Symbols, Footprints and 3D Models

STMicroelectronics - STHV748S

Speed up your design by downloading all the EDA symbols, footprints and 3D models for your application. You have access to a large number of CAD formats to fit with your design toolchain.

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质量与可靠性

产品型号 Marketing Status 封装 等级规格 符合RoHS级别 材料声明**
STHV748SQ
批量生产
VFQFPN 64 9x9x1.0 mm 工业 Ecopack3

STHV748SQ

Package:

VFQFPN 64 9x9x1.0 mm

Material Declaration**:

PDF XML

Marketing Status

批量生产

Package

VFQFPN 64 9x9x1.0 mm

Grade

Industrial

RoHS Compliance Grade

Ecopack3

(**) st.com上提供的材料声明表单可能是基于包装系列中最常用的封装的通用文档。因此,它们可能不是100%适用于特定的设备。有关特定设备的信息,请联系 销售支持

样片和购买

产品型号
从分销商订购
从ST订购
供货状态
ECCN (US)
ECCN (EU)
包装类型
封装
温度(ºC) Country of Origin
Budgetary Price (US$)*/Qty
最小值
最大值
STHV748SQ 无法联系到经销商,请联系我们的销售办事处
批量生产
EAR99 NEC Tray VFQFPN 64 9x9x1.0 mm - - PHILIPPINES 16.875 / 1

STHV748SQ

供货状态

批量生产

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

16.875 / 1

ECCN (EU)

NEC

包装类型

Tray

封装

VFQFPN 64 9x9x1.0 mm

Operating Temperature (°C)

(最小值)

-

(最大值)

-

Budgetary Price (US$)* / Qty

16.875 / 1

Country of Origin

PHILIPPINES

(*) 建议转售单价(美元)仅用于预算用途。如需以当地货币计价的报价,请联系您当地的 ST销售办事处 或我们的 经销商