可訂購部件
| 型號 | 可訂購的器件編號 | 訂購代碼(12NC) | 封裝 | 從經(jīng)銷商處購買 |
|---|---|---|---|---|
| HEF4538BT | HEF4538BT,653 | 933507970653 | SOT109-1 | 訂單產(chǎn)品 |
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Click here for more informationHEF4538BT
Dual precision monostable multivibrator
The HEF4538B is a dual retriggerable-resettable monostable multivibrator. Each multivibrator has an active LOW trigger/retrigger input (nA), an active HIGH trigger/retrigger input (nB), an overriding active LOW direct reset input (nCD), an output (nQ) and its complement (nQ), and two pins (nREXT/CEXT, and nCEXT, always connected to ground) for connecting the external timing components CEXT and REXT. Typical pulse width variation over the specified temperature range is ±0.2 %.
The multivibrator may be triggered by either the positive or the negative edges of the input pulse and will produce an accurate output pulse with a pulse width range of 10 μs to infinity. The duration and accuracy of the output pulse are determined by the external timing components CEXT and REXT. The output pulse width (tW) is equal to REXT × CEXT. The linear design techniques in LOCMOS (Local Oxide CMOS) guarantee precise control of the output pulse width. A LOW level at nCD terminates the output pulse immediately. The trigger inputs’ Schmitt trigger action makes the circuit highly tolerant of slower rise and fall times.
It operates over a recommended VDD power supply range of 3 V to 15 V referenced to VSS (usually ground). Unused inputs must be connected to VDD, VSS, or another input.
Alternatives
Features and benefits
Tolerant of slow trigger rise and fall times
Wide supply voltage range from 3.0 V to 15.0 V
CMOS low power dissipation
High noise immunity
Fully static operation
5 V, 10 V, and 15 V parametric ratings
Standardized symmetrical output characteristics
Complies with JEDEC standard JESD 13-B
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ESD protection:
HBM: ANSI/ESDA/JEDEC JS-001 class 2 exceeds 2000 V
CDM: ANSI/ESDA/JEDEC JS-002 class C3 exceeds 1000 V
Specified from -40 °C to +85 °C and -40 °C to +125 °C
參數(shù)類型
| 型號 | VCC (V) | Logic switching levels | Output drive capability (mA) | tpd (ns) | Power dissipation considerations | Tamb (°C) | Rth(j-a) (K/W) | Ψth(j-top) (K/W) | Rth(j-c) (K/W) | Package name |
|---|---|---|---|---|---|---|---|---|---|---|
| HEF4538BT | 3.0?-?15 | CMOS | ± 2.4 | 60 | medium | -40~85 | 78 | 3.5 | 37 | SO16 |
PCB Symbol, Footprint and 3D Model
| Model Name | 描述 |
|---|---|
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封裝
| 型號 | 可訂購的器件編號，（訂購碼(12NC)） | 狀態(tài) | 標示 | 封裝 | 外形圖 | 回流焊/波峰焊 | 包裝 |
|---|---|---|---|---|---|---|---|
| HEF4538BT | HEF4538BT,653 (933507970653) |
Active | HEF4538BT |
SO16 (SOT109-1) |
SOT109-1 |
SO-SOJ-REFLOW
SO-SOJ-WAVE WAVE_BG-BD-1 |
暫無信息 |
文檔 (11)
| 文件名稱 | 標題 | 類型 | 日期 |
|---|---|---|---|
| HEF4538B | Dual precision monostable multivibrator | Data sheet | 2024-08-16 |
| AN11051 | Pin FMEA HEF4000 family | Application note | 2019-01-09 |
| AN90063 | Questions about package outline drawings | Application note | 2025-09-15 |
| SOT109-1 | 3D model for products with SOT109-1 package | Design support | 2020-01-22 |
| Nexperia_package_poster | Nexperia package poster | Leaflet | 2020-05-15 |
| SO16_SOT109-1_mk | plastic, small outline package; 16 leads; 1.27 mm pitch; 9.9 mm x 3.9 mm x 1.35 mm body | Marcom graphics | 2017-01-28 |
| SOT109-1 | plastic, small outline package; 16 leads; 1.27 mm pitch; 9.9 mm x 3.9 mm x 1.75 mm body | Package information | 2023-11-07 |
| HEF4538BT_Nexperia_Product_Reliability | HEF4538BT Nexperia Product Reliability | Quality document | 2025-03-20 |
| SO-SOJ-REFLOW | Footprint for reflow soldering | Reflow soldering | 2009-10-08 |
| SO-SOJ-WAVE | Footprint for wave soldering | Wave soldering | 2009-10-08 |
| WAVE_BG-BD-1 | Wave soldering profile | Wave soldering | 2021-09-08 |
Longevity
The Nexperia Longevity Program is aimed to provide our customers information from time to time about the expected time that our products can be ordered. The NLP is reviewed and updated regularly by our Executive Management Team. View our longevity program here.
模型
| 文件名稱 | 標題 | 類型 | 日期 |
|---|---|---|---|
| SOT109-1 | 3D model for products with SOT109-1 package | Design support | 2020-01-22 |
PCB Symbol, Footprint and 3D Model
| Model Name | 描述 |
|---|---|
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訂購、定價與供貨
| 型號 | Orderable part number | Ordering code (12NC) | 狀態(tài) | 包裝 | Packing Quantity | 在線購買 |
|---|---|---|---|---|---|---|
| HEF4538BT | HEF4538BT,653 | 933507970653 | Active | 暫無信息 | 2,500 |
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樣品
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How does it work?
The interactive datasheets are based on the Nexperia MOSFET precision electrothermal models. With our interactive datasheets you can simply specify your own conditions interactively. Start by changing the values of the conditions. You can do this by using the sliders in the condition fields. By dragging the sliders you will see how the MOSFET will perform at the new conditions set.