Request Quote
(Ships tomorrow)
TLC5948DBQ LED Driver IC Equivalent & Substitute Parts
Part Overview
The TLC5948DBQ is a 16-output linear LED driver IC manufactured by Texas Instruments, designed for signage applications. This device features shift register topology with internal switches, supporting 60mA per channel output current across a 3V to 5.5V supply range in a 24-SSOP surface mount package. The TLC5948DBQ is classified as obsolete, making equivalent and substitute parts necessary for new designs and ongoing production requirements. Active alternatives with matching or enhanced electrical characteristics are available from multiple manufacturers.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer Part Number | TLC5948DBQ |
| Manufacturer | Texas Instruments |
| Number of Outputs | 16 |
| Current - Output / Channel | 60mA |
| Voltage - Supply (Min) | 3V |
| Voltage - Supply (Max) | 5.5V |
| Voltage - Output | 10V |
| Type | Linear |
| Topology | Shift Register |
| Internal Switch(s) | Yes |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Package / Case | 24-SSOP (0.154", 3.90mm Width) |
| Mounting Type | Surface Mount |
| Product Status | Obsolete |
| RoHS Status | ROHS3 Compliant |
Substitute Part Grouping Explanation
Substitution for the TLC5948DBQ is determined by the following critical parameters:
Primary Substitution Criteria:
- Number of Outputs: 16 channels (mandatory match)
- Topology: Shift Register with internal switches (mandatory match)
- Supply Voltage Range: 3V to 5.5V (minimum requirement)
- Current per Channel: 60mA or greater (equal or higher capacity acceptable)
- Package Type: Surface mount preferred for PCB compatibility
- Product Status: Active status preferred for long-term availability
Secondary Considerations:
- Operating temperature range (-40°C minimum, 85°C or higher maximum)
- Output voltage capability (10V or higher)
- Frequency support (30MHz preferred for modern applications)
- Compliance certifications (ROHS3, REACH)
Substitutes are grouped into three categories: parametric equivalents (matching all critical parameters), manufacturer-recommended alternatives (enhanced specifications), and functional alternatives (different packages or slightly reduced current ratings).
Parameter Comparison
| Part Number | Manufacturer | Outputs | Current/Ch (mA) | Supply Min (V) | Supply Max (V) | Output Voltage (V) | Topology | Package | Temp Range (°C) | Status |
|---|---|---|---|---|---|---|---|---|---|---|
| TLC5948DBQ | Texas Instruments | 16 | 60 | 3 | 5.5 | 10 | Shift Register | 24-SSOP | -40 ~ 85 | Obsolete |
| TLC5948ADBQ | Texas Instruments | 16 | 60 | 3 | 5.5 | 10 | Shift Register | 24-SSOP | -40 ~ 85 | Active |
| ALED1642GWXTTR | STMicroelectronics | 16 | 40 | 3 | 5.5 | 19 | Shift Register | 24-TSSOP-EP | -40 ~ 150 | Active |
| MAX6969ANG+ | Analog Devices Inc./Maxim Integrated | 16 | 55 | 3 | 5.5 | 5.5 | Shift Register | 24-PDIP | -40 ~ 125 | Active |
| MIC5400YWM-TR | Microchip Technology | 16 | 30 | 4.75 | 5.5 | — | Linear | 28-SOIC | -40 ~ 125 | Active |
| STAP16DPPS05XTTR | STMicroelectronics | 16 | 40 | 3 | 5.5 | 20 | Shift Register | 24-HTSSOP | -40 ~ 125 | Active |
| STAP16DPS05XTTR | STMicroelectronics | 16 | 100 | 3 | 5.5 | 20 | Shift Register | 24-TSSOP-EP | -40 ~ 125 | Active |
| STP16CP05MTR | STMicroelectronics | 16 | 100 | 3 | 5.5 | 20 | Shift Register | 24-SOIC | -40 ~ 125 | Active |
| STP16CPC05XTTR | STMicroelectronics | 16 | 100 | 3 | 5.5 | 20 | Shift Register | 24-TSSOP-EP | -40 ~ 125 | Active |
| STP16CPP05MTR | STMicroelectronics | 16 | 40 | 3 | 5.5 | 20 | Shift Register | 24-SOIC | -40 ~ 125 | Active |
| STP16CPS05MTR | STMicroelectronics | 16 | 100 | 3 | 5.5 | 20 | Shift Register | 24-SOIC | -40 ~ 125 | Active |
Engineering Selection Recommendations
Parametric Equivalent (Direct Replacement): TLC5948ADBQ is the direct active equivalent from Texas Instruments. It maintains identical electrical specifications (16 outputs, 60mA per channel, 3V–5.5V supply, 10V output) and package format (24-SSOP). This part is ROHS3 compliant and carries active product status, ensuring long-term availability and supply chain stability.
Manufacturer-Recommended Alternatives (Enhanced Specifications): STMicroelectronics parts (STAP16DPPS05XTTR, STAP16DPS05XTTR, STP16CP05MTR, STP16CPC05XTTR, STP16CPP05MTR, STP16CPS05MTR) provide 16-output shift register topology with higher current ratings (40mA–100mA per channel) and extended operating temperature ranges (-40°C to 125°C). These devices support 30MHz frequency operation and are available in multiple surface mount packages (24-SOIC, 24-TSSOP-EP, 24-HTSSOP). All are ROHS3 compliant and actively produced.
Alternative Topology Options: ALED1642GWXTTR (STMicroelectronics) offers PWM dimming capability with 40mA per channel and automotive-grade qualification (-40°C to 150°C). MAX6969ANG+ (Analog Devices/Maxim) provides 55mA per channel in through-hole 24-DIP package format, suitable for legacy board designs. MIC5400YWM-TR (Microchip) delivers 16 outputs at 30mA per channel in 28-SOIC package with 4.75V minimum supply voltage.
Compliance & Availability: All recommended substitutes maintain ROHS3 compliance and REACH unaffected status. Active product status ensures continued manufacturing and distribution. Selection should prioritize package compatibility with existing PCB layouts and current capacity requirements for target LED load specifications.
Frequently Asked Questions (FAQ)
Q: Can TLC5948ADBQ directly replace TLC5948DBQ without PCB modifications? A: Yes. TLC5948ADBQ is the parametric equivalent with identical pin configuration, package dimensions (24-SSOP), and electrical specifications. No PCB layout changes are required.
Q: What is the primary difference between TLC5948DBQ and STMicroelectronics alternatives? A: STMicroelectronics parts offer higher current per channel (40mA–100mA versus 60mA), extended temperature ranges, and 30MHz frequency support. Package options differ (24-SOIC, 24-TSSOP-EP, 24-HTSSOP versus 24-SSOP). Electrical compatibility is maintained across the 3V–5.5V supply range.
Q: Is MIC5400YWM-TR suitable as a substitute? A: MIC5400YWM-TR provides 16 outputs with shift register topology but operates at reduced current (30mA per channel) and requires minimum 4.75V supply. It is suitable only for applications with lower LED current requirements and 4.75V–5.5V supply constraints.
Q: Can MAX6969ANG+ replace TLC5948DBQ in surface mount designs? A: MAX6969ANG+ is a through-hole 24-DIP package device, not surface mount. It is suitable for legacy or prototype boards but not for modern surface mount PCB designs. Current rating is 55mA per channel, slightly below the original 60mA specification.
Q: What package options are available for 60mA+ current substitutes? A: STP16CPS05MTR and STP16CP05MTR provide 100mA per channel in 24-SOIC surface mount package. STAP16DPPS05XTTR and STP16CPC05XTTR offer 40mA–100mA in 24-TSSOP-EP with exposed pad for thermal management.
Q: Are all substitutes ROHS3 compliant? A: Yes. All listed substitutes maintain ROHS3 compliance and REACH unaffected status, meeting modern environmental and regulatory requirements.
Q: What is the temperature range advantage of ALED1642GWXTTR? A: ALED1642GWXTTR operates from -40°C to 150°C, compared to TLC5948DBQ's -40°C to 85°C range. This extended upper limit supports automotive and high-temperature industrial applications. Current per channel is 40mA with PWM dimming capability.
Alternative Parts
SJ6012L2TP
Littelfuse Inc.
6 Alternative Parts
JMK107BBJ476MA-RE
Taiyo Yuden
10 Alternative Parts
GMK107BBJ475MA-T
Taiyo Yuden
5 Alternative Parts
SJ6020N2ARP
Littelfuse Inc.
3 Alternative Parts
SJ6025R2ATP
Littelfuse Inc.
4 Alternative Parts
2474-05L
API Delevan Inc.
1 Alternative Parts
4590R-684K
API Delevan Inc.
1 Alternative Parts
CM6560R-334
API Delevan Inc.
1 Alternative Parts
CM6460-104
API Delevan Inc.
1 Alternative Parts
5526-12
API Delevan Inc.
1 Alternative Parts