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HEF4894B-Q100

12-stage shift-and-store register LED driver

The HEF4894B-Q100 is a 12-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 QP11). Data is shifted on positive-going clock (CP) transitions. The data in each shift register stage is transferred to the storage register when the strobe (STR) input is HIGH. Data in the storage register appears at the output whenever the output enable (OE) input signal is HIGH.

Two serial outputs (QS1 and QS2) are available for cascading a number of HEF4894B-Q100 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 HEF4894B-Q100 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.

This product has been qualified to the Automotive Electronics Council (AEC) standard Q100 (Grade 1) and is suitable for use in automotive applications.

Features and benefits

  • Automotive product qualification in accordance with AEC-Q100 (Grade 1)

    • Specified from -40 °C to +85 °C and from -40 °C to +125 °C

  • 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:

    • MIL-STD-833, method 3015 exceeds 2000 V

    • HBM JESD22-A114F exceeds 2000 V

    • MM JESD22-A115-B exceeds 200 V (C = 200 pF, R = 0 Ω)

Parametrics

Type numberProduct statusVCC (V)Logic switching levelsOutput drive capability (mA)tpd (ns)fmax (MHz)Power dissipation considerationsTamb (°C)Rth(j-a) (K/W)Ψth(j-top) (K/W)Rth(j-c) (K/W)Package name
HEF4894BT-Q100Production3.0 - 15CMOS-204528medium-40~857720.053SO20
HEF4894BTT-Q100Production3.0 - 15CMOS-204528medium-40~85963.339TSSOP20

Package

Type numberPackagePackage informationReflow-/Wave solderingPackingStatusMarkingOrderable part number, (Ordering code (12NC))
HEF4894BT-Q100
SO20
(SOT163-1)
SOT163-1WAVE_BG-BD-1
SOT163-1_118ActiveHEF4894BTHEF4894BT-Q100,118
( 9352 985 25118 )
HEF4894BTT-Q100
TSSOP20
(SOT360-1)
SOT360-1SSOP-TSSOP-VSO-WAVE
SOT360-1_118ActiveHEF4894HEF4894BTT-Q100,11
( 9352 985 26118 )

Environmental information

Type numberOrderable part numberChemical contentRoHSRHF-indicatorLeadfree conversion date
HEF4894BT-Q100HEF4894BT-Q100,118HEF4894BT-Q100Always Pb-free
HEF4894BTT-Q100HEF4894BTT-Q100,11HEF4894BTT-Q100Always Pb-free
Quality and reliability disclaimer

Documentation (7)

File nameTitleTypeDate
HEF4894B_Q10012-stage shift-and-store register LED driverData sheet2021-11-23
AN11051Pin FMEA HEF4000 familyApplication note2019-01-09
Nexperia_Selection_guide_2023Nexperia Selection Guide 2023Selection guide2023-05-10
SSOP-TSSOP-VSO-WAVEFootprint for wave solderingWave soldering2009-10-08
SOT360-1plastic, thin shrink small outline package; 20 leads; 0.65 mm pitch; 6.5 mm x 4.4 mm x 1.1 mm bodyPackage information2022-06-21
SOT163-1plastic, small outline package; 20 leads; 1.27 mm pitch; 12.8 mm x 7.5 mm x 2.65 mm bodyPackage information2022-06-20
WAVE_BG-BD-1Wave soldering profileWave soldering2021-09-08

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