AS1109-BSSU-Z LED Driver IC Equivalent & Substitute Parts

Part Overview

The AS1109-BSSU-Z is a linear LED driver IC manufactured by ams-OSRAM USA INC., designed for signage applications requiring 8-channel output control. This device integrates a shift register topology with internal switching capability, delivering 100mA per output channel across a 3.15V to 5.5V supply range. The AS1109-BSSU-Z is classified as obsolete, necessitating identification of active equivalent components to maintain design continuity and ensure long-term supply availability for new production and field replacements.

Substiute Parts

AS1109-BSSU-Z

ams-OSRAM USA INC.In Stock: 1012AS1109-BSSU-Z Datasheet

Current PartRFQ

AS1109-BSSU

ams-OSRAM USA INC.In Stock: 717AS1109-BSSU Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the AS1109-BSSU-Z is determined by strict equivalence across the following critical parameters:

Electrical Equivalence Criteria:

• Topology: Shift Register architecture
• Number of Outputs: 8 channels
• Current Rating: 100mA per channel
• Supply Voltage Range: 3.15V to 5.5V
• Output Voltage: 15V
• Operating Frequency: 50MHz
• Temperature Range: -40°C to 85°C

Mechanical Equivalence Criteria:

• Package Type: 16-SSOP (0.154", 3.90mm Width)
• Mounting Type: Surface Mount
• Pin Configuration: Identical footprint compatibility

Compliance Equivalence Criteria:

• RoHS Compliance: Required
• Moisture Sensitivity Level: MSL 1 (Unlimited)

The AS1109-BSSU (without the -Z suffix) meets all electrical, mechanical, and compliance requirements for direct substitution. Both parts share identical base product number AS1109 and are manufactured by the same supplier.

Parameter Comparison

Engineering Selection Recommendations

The AS1109-BSSU is the direct substitute for the obsolete AS1109-BSSU-Z. Both components are manufactured by ams-OSRAM USA INC. and share identical electrical specifications, mechanical packaging, and compliance certifications. The AS1109-BSSU maintains active product status, ensuring continued availability and supply chain reliability.

Selection of the AS1109-BSSU over the AS1109-BSSU-Z is justified by:

1. Product Status: The AS1109-BSSU is active, whereas the AS1109-BSSU-Z is obsolete, reducing long-term supply risk.
2. Regulatory Compliance: Both parts maintain RoHS compliance and MSL 1 rating, meeting environmental and moisture handling requirements.
3. Functional Equivalence: All electrical parameters, including supply voltage range, output current, frequency, and temperature operating range, are identical.
4. Mechanical Compatibility: Identical 16-SSOP package footprint ensures direct PCB layout compatibility without redesign.

Frequently Asked Questions (FAQ)

Q: Can the AS1109-BSSU directly replace the AS1109-BSSU-Z without PCB modifications?

A: Yes. Both components use the 16-SSOP package with identical pin configuration and footprint dimensions (0.154", 3.90mm Width). No PCB layout changes are required for direct substitution.

Q: Are the electrical specifications identical between AS1109-BSSU-Z and AS1109-BSSU?

A: Yes. Both parts operate at 3.15V to 5.5V supply voltage, deliver 100mA per output channel across 8 outputs, and function across -40°C to 85°C operating temperature. Frequency, output voltage, and topology specifications are identical.

Q: What is the difference between the AS1109-BSSU-Z and AS1109-BSSU part numbers?

A: The -Z suffix on the AS1109-BSSU-Z indicates an obsolete product status. The AS1109-BSSU is the active equivalent with identical specifications. The base product number AS1109 remains the same for both variants.

Q: Are both parts RoHS compliant?

A: Yes. Both the AS1109-BSSU-Z and AS1109-BSSU are RoHS compliant and carry MSL 1 (Unlimited) moisture sensitivity rating, meeting environmental and handling requirements.

Q: Which part should be selected for new designs?

A: The AS1109-BSSU should be selected for new designs due to its active product status, ensuring long-term supply availability and manufacturing support.

Q: Is the AS1109-BSSU suitable for signage applications?

A: Yes. Both the AS1109-BSSU-Z and AS1109-BSSU are specified for signage applications, with 8-channel shift register architecture and 100mA per-channel output capability designed for LED control in signage systems.