HEF4794B
8-stage shift-and-store register LED driver
The HEF4794B is an 8-stage serial shift register. It has a storage latch associated with each stage for strobing data from the serial input (D) to the parallel LED driver outputs (QP0 to QP7). Data is shifted on the positive-going clock (CP) transitions. The data in each shift register stage is transferred to the storage register when the strobe input (STR) is HIGH. Data in the storage register appears at the outputs whenever the output enable input (OE) signal is HIGH.
Two serial outputs (QS1 and QS2) are available for cascading a number of HEF4794B devices. Serial data is available at QS1 on positive-going clock edges to allow high-speed operation in cascaded systems with a fast clock rise time. The same serial data is available at QS2 on the next negative going clock edge. This is used for cascading HEF4794B devices when the clock has a slow rise time.
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.
Features and benefits
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
- 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(hào) | VCC (V) | Logic switching levels | Output drive capability (mA) | tpd (ns) | fmax (MHz) | Nr of bits | Power dissipation considerations | Tamb (°C) | Rth(j-a) (K/W) | Ψth(j-top) (K/W) | Rth(j-c) (K/W) | Package name |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| HEF4794BT | 3.0?-?15 | CMOS | -20 | 45 | 28 | 8 | medium | -40~85 | 82 | 5.3 | 41.3 | SO16 |
封裝
| 型號(hào) | 可訂購的器件編號(hào)，（訂購碼(12NC)） | 狀態(tài) | 標(biāo)示 | 封裝 | 外形圖 | 回流焊/波峰焊 | 包裝 |
|---|---|---|---|---|---|---|---|
| HEF4794BT | HEF4794BT,118 (935069140118) |
Active | HEF4794BT |
SO16 (SOT109-1) |
SOT109-1 |
SO-SOJ-REFLOW
SO-SOJ-WAVE WAVE_BG-BD-1 |
SOT109-1_118 |
環(huán)境信息
品質(zhì)及可靠性免責(zé)聲明
文檔 (11)
| 文件名稱 | 標(biāo)題 | 類型 | 日期 |
|---|---|---|---|
| HEF4794B | 8-stage shift-and-store register LED driver | Data sheet | 2024-08-14 |
| AN11051 | Pin FMEA HEF4000 family | Application note | 2019-01-09 |
| AN90063 | Questions about package outline drawings | Application note | 2025-10-22 |
| 001aag799 | Block diagram: HEC4094BT, HEF4094BP, HEF4094BT, HEF4094BTS, HEF4794BP, HEF4794BT | Block diagram | 2009-11-03 |
| 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 |
| 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 |
支持
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模型
| 文件名稱 | 標(biāo)題 | 類型 | 日期 |
|---|---|---|---|
| SOT109-1 | 3D model for products with SOT109-1 package | Design support | 2020-01-22 |
Ordering, pricing & availability
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