MSL3168GU-R LED Driver IC Equivalent & Substitute Parts

Part Overview

The MSL3168GU-R is a 16-output linear PWM LED driver IC manufactured by Microchip Technology, designed for backlight applications with 30mA per-channel output capability. This device operates within a 4.75V to 5.5V supply range and supports PWM dimming control. The part is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and production continuity.

Substiute Parts

MSL3168GU-R

Microchip TechnologyIn Stock: 1122MSL3168GU-R Datasheet

Current PartRFQ

MAX6969AUG+T

Analog Devices Inc./Maxim IntegratedIn Stock: 2829MAX6969AUG+T Datasheet

MFR RecommendedRFQ

PCA9532PW,118

NXP USA Inc.In Stock: 4138PCA9532PW,118 Datasheet

MFR RecommendedRFQ

STP16CPC26TTR

STMicroelectronicsIn Stock: 5221STP16CPC26TTR Datasheet

MFR RecommendedRFQ

TLC59282RGER

Texas InstrumentsIn Stock: 20287TLC59282RGER Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MSL3168GU-R is determined by the following critical parameters:

• Number of Outputs: All substitute parts must provide 16 output channels
• Supply Voltage Range: Substitute parts must operate within or encompass the 4.75V to 5.5V range
• Output Current: Substitute parts must meet or exceed 30mA per-channel capability
• Type & Topology: Linear driver architecture with internal switching capability
• Dimming Control: PWM or equivalent dimming methodology
• Operating Temperature: Must support -40°C to 85°C minimum
• RoHS Compliance: All substitutes must maintain ROHS3 compliance

The four substitute parts listed below meet these core substitution criteria, though each introduces variations in package form factor, topology refinement, or enhanced specifications that may require design validation.

Parameter Comparison

Engineering Selection Recommendations

MAX6969AUG+T (Analog Devices Inc./Maxim Integrated): Active product status with extended operating temperature range (-40°C to 125°C). Provides 55mA per-channel output, exceeding MSL3168GU-R specifications. Shift register topology with linear architecture. Package transition from 32-SOIC to 24-TSSOP requires PCB layout modification. ROHS3 compliant. Suitable for designs requiring higher output current and extended temperature performance.

PCA9532PW,118 (NXP USA Inc.): Active product with I2C dimming control interface, differing from the PWM methodology of MSL3168GU-R. Power switch topology with 25mA per-channel output. Extended supply voltage range (2.3V to 5.5V) provides design flexibility. 24-TSSOP package. ROHS3 compliant. Requires firmware modification for I2C control implementation.

STP16CPC26TTR (STMicroelectronics): Active product with highest per-channel output current (90mA) and extended operating temperature (-40°C to 125°C). Shift register topology with analog dimming control. 24-TSSOP package. Supports 20V output voltage and 30MHz frequency specification. ROHS3 compliant. Suitable for high-current backlight and lighting applications.

TLC59282RGER (Texas Instruments): Active product with 45mA per-channel output and shift register topology. Operating temperature range matches MSL3168GU-R (-40°C to 85°C). 24-VFQFN package with exposed pad. 35MHz frequency specification. ROHS3 compliant. Compact package footprint suitable for space-constrained designs.

Frequently Asked Questions (FAQ)

Q: Can the MSL3168GU-R be directly replaced with any of these substitute parts without design changes?

A: Direct replacement is not possible due to package form factor differences. The MSL3168GU-R uses 32-SOIC packaging, while all substitute parts use either 24-TSSOP or 24-VFQFN packages. PCB layout and pinout modifications are required.

Q: Which substitute part most closely matches the MSL3168GU-R specifications?

A: PCA9532PW,118 maintains the closest operating temperature range (-40°C to 85°C) and backlight application focus. However, it uses I2C dimming control instead of PWM, requiring firmware changes. STP16CPC26TTR and TLC59282RGER provide superior output current capabilities with extended temperature ranges.

Q: What is the minimum supply voltage requirement for each substitute?

A: MSL3168GU-R requires 4.75V minimum. MAX6969AUG+T, STP16CPC26TTR, and TLC59282RGER operate from 3V minimum. PCA9532PW,118 has the lowest minimum requirement at 2.3V, providing the greatest design flexibility for lower-voltage applications.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All four substitute parts (MAX6969AUG+T, PCA9532PW,118, STP16CPC26TTR, and TLC59282RGER) maintain ROHS3 compliance, matching the MSL3168GU-R environmental certification status.

Q: Which substitute offers the highest output current per channel?

A: STP16CPC26TTR provides 90mA per-channel output, the highest among all options. This exceeds the MSL3168GU-R specification of 30mA by 3x, suitable for high-brightness LED applications.

Q: What dimming control methods are available across the substitute parts?

A: MSL3168GU-R uses PWM dimming. MAX6969AUG+T and TLC59282RGER do not specify dimming methodology. PCA9532PW,118 uses I2C control. STP16CPC26TTR supports analog dimming. Design selection depends on existing dimming architecture requirements.

Q: Do all substitute parts support the same operating temperature range?

A: No. MSL3168GU-R and PCA9532PW,118 operate from -40°C to 85°C. MAX6969AUG+T and STP16CPC26TTR extend to -40°C to 125°C. TLC59282RGER matches the original at -40°C to 85°C. Temperature selection depends on application environment requirements.