STEVAL-A6986IV1

批量生产
Design Win

38 V, 5 W synchronous iso-buck converter evaluation board with dual isolated output based on the A6986I

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质量与可靠性
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产品概述

描述

The STEVAL-A6986IV1 evaluation board is based on ST A6986I automotive 38 V, 5 W synchronous iso-buck converter for isolated applications.

The primary output voltage can be accurately adjusted, whereas the isolated secondary output is generated by a transformer. No optocoupler is required.

The primary sink capability (typ. 1.9 A) allows a proper energy transfer to the secondary side and enables a tracked soft-start of the secondary output.

The control loop is based on a peak current mode architecture and the device operates in forced PWM.

The 300 ns blanking time filters oscillations generated by the transformer leakage inductance and makes the solution more robust.

Pulse by pulse current sensing on both power elements implements an effective constant current protection on the primary side. Due to the primary reverse current limit, the secondary output is protected against short-circuit events. The secondary voltage is stabilized over current by using a power transistor and a shunt voltage reference (TL431).

The evaluation board generates two isolated voltages (positive around 18 V and negative between 4 V and 5 V), especially suitable for supplying IGBT/SiC MOSFET gate driver. A simple bypass enables the supply of a single isolated voltage.

  • 所有功能

    • AEC-Q100 qualified
    • Operating temperature range: -40 °C to 135 °C for Tj
    • Designed for iso-buck topology
    • 4 to 38 V operating input voltage
    • Primary output voltage regulation
    • No optocoupler required
    • 1.9 A typical sink peak primary current capability
    • Peak current mode architecture in forced PWM operation
    • 300 ns blanking time
    • 8 µA IQ-SHTDWN
    • Adjustable fSW and synchronization
    • Embedded primary output voltage supervisor
    • Adjustable soft-start time
    • Internal primary current limiting
    • Overvoltage protection
    • RDS(on) HS = 180 mΩ, RDS(on) LS = 150 mΩ
    • Thermal shutdown

质量与可靠性

产品型号 Marketing Status 符合RoHS级别 WEEE Compliant 材料声明**
STEVAL-A6986IV1
批量生产
Ecopack2 Yes

STEVAL-A6986IV1

Package:

Ecopack2

Material Declaration**:

Marketing Status

批量生产

RoHS Compliance Grade

Ecopack2

WEEE Compliant

Yes

(**) 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

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产品型号
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核心产品
供货状态
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ECCN (US)
ECCN (EU)
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Budgetary Price (US$)*/Qty
STEVAL-A6986IV1 Available at distributors

经销商的可用性 STEVAL-A6986IV1

代理商名称
地区 库存 最小订购量 第三方链接

代理商库存报告日期:

无法联系到经销商,请联系我们的销售办事处
A6986I
批量生产
ST EAR99 NEC ITALY

STEVAL-A6986IV1 批量生产

ECCN (US):
EAR99
Budgetary Price (US$)*/Qty:
-

产品型号:

STEVAL-A6986IV1

核心产品:

A6986I

供应商:

ST

ECCN (EU):

NEC

Country of Origin:

ITALY

代理商名称

代理商库存报告日期:

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(*) 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