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LC5210D LED Driver IC Equivalent & Substitute Parts
Part Overview
The LC5210D is an AC DC offline switcher LED driver IC manufactured by Sanken Electric USA Inc., designed for PWM dimming applications with 800mA output capability. This component operates across a wide supply voltage range of 25V to 400V and is housed in an 8-DIP through-hole package. The LC5210D is classified as obsolete, making identification of functionally equivalent substitute parts essential for ongoing design support and production continuity.
Substiute Parts
Key Parameters
| Parameter | LC5210D Value |
|---|---|
| Manufacturer | Sanken Electric USA Inc. |
| Category | Power Management (PMIC) |
| Type | AC DC Offline Switcher |
| Topology | Step-Down (Buck) |
| Internal Switch(s) | Yes |
| Number of Outputs | 1 |
| Voltage - Supply (Min) | 25V |
| Voltage - Supply (Max) | 400V |
| Current - Output / Channel | 800mA |
| Frequency | 200kHz |
| Dimming | PWM |
| Operating Temperature | -40°C ~ 105°C (TA) |
| Mounting Type | Through Hole |
| Package / Case | 8-DIP (0.300", 7.62mm), 7 Leads |
| Product Status | Obsolete |
| RoHS Status | RoHS Compliant |
Substitute Part Grouping Explanation
Substitute parts for the LC5210D are identified based on strict alignment with the following critical parameters:
- Type: AC DC Offline Switcher topology
- Topology: Step-Down (Buck) configuration
- Number of Outputs: Single output
- Dimming Method: PWM or Triac dimming capability
- Supply Voltage Range: Compatibility with 25V to 400V input
- Output Current: 800mA or higher capability
- Internal Switch: Presence of integrated switching element
- Operating Temperature Range: Support for -40°C to 105°C minimum
Substitute parts are grouped into two categories based on dimming methodology and electrical characteristics:
Group 1 - PWM Dimming with High Current Output (800mA+): Parts maintaining PWM dimming and 800mA output capability with internal switching elements.
Group 2 - Triac Dimming Alternatives: Parts utilizing Triac dimming with reduced output current (30mA to 50mA) suitable for lower-power LED driver applications.
Group 3 - Analog Dimming with Lower Supply Voltage: Parts featuring analog dimming control with restricted supply voltage range (8V to 13V), requiring external switching elements.
Parameter Comparison
| Parameter | LC5210D | HV9922N3-G | HV9923N8-G | LM3444MA/NOPB | LM3444MAX/NOPB | LM3445MX/NOPB | LYT3328D-TL | TPS92010D |
|---|---|---|---|---|---|---|---|---|
| Manufacturer | Sanken Electric USA Inc. | Microchip Technology | Microchip Technology | National Semiconductor | Texas Instruments | Texas Instruments | Power Integrations | Texas Instruments |
| Type | AC DC Offline Switcher | AC DC Offline Switcher | AC DC Offline Switcher | AC DC Offline Switcher | AC DC Offline Switcher | AC DC Offline Switcher | AC DC Offline Switcher | AC DC Offline Switcher |
| Topology | Step-Down (Buck) | Step-Down (Buck) | Step-Down (Buck) | Step-Down (Buck) | Step-Down (Buck) | Step-Down (Buck) | Flyback, Step-Down (Buck), Step-Up (Boost) | Flyback |
| Internal Switch(s) | Yes | Yes | Yes | No | No | No | Yes | Yes |
| Number of Outputs | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Voltage - Supply (Min) | 25V | 20V | 20V | 8V | 8V | 8V | 85VAC | — |
| Voltage - Supply (Max) | 400V | 400V | 400V | 13V | 13V | 12V | 132VAC | 21V |
| Current - Output / Channel | 800mA | 50mA | 30mA | — | — | — | — | 1A |
| Frequency | 200kHz | — | — | — | — | 30kHz ~ 1MHz | 40kHz ~ 124kHz | — |
| Dimming | PWM | Triac | Triac | Analog | Analog | Triac | Triac | — |
| Operating Temperature | -40°C ~ 105°C (TA) | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) | -40°C ~ 125°C (TJ) | -40°C ~ 125°C (TJ) | -40°C ~ 125°C (TJ) | -40°C ~ 150°C (TJ) | -40°C ~ 105°C (TJ) |
| Mounting Type | Through Hole | Through Hole | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
| Package / Case | 8-DIP (0.300", 7.62mm), 7 Leads | TO-226-3, TO-92-3 (TO-226AA) | TO-243AA | 8-SOIC (0.154", 3.90mm Width) | 8-SOIC (0.154", 3.90mm Width) | 14-SOIC (0.154", 3.90mm Width) | 16-SOIC (0.154", 3.90mm Width), 14 Leads | 8-SOIC (0.154", 3.90mm Width) |
| Product Status | Obsolete | Active | Active | Active | Active | Active | Active | Active |
| RoHS Status | RoHS Compliant | ROHS3 Compliant | ROHS3 Compliant | — | ROHS3 Compliant | ROHS3 Compliant | RoHS Compliant | ROHS3 Compliant |
Engineering Selection Recommendations
Selection of substitute parts for the LC5210D must account for the following engineering constraints:
For Direct Functional Replacement (PWM Dimming, 800mA Output, High Voltage Input)
No substitute part maintains all electrical characteristics of the LC5210D. The combination of PWM dimming, 800mA output current, and 25V to 400V supply voltage range is unique to the LC5210D within the provided substitute list.
For High-Voltage AC DC Offline Switcher Applications
The LYT3328D-TL (Power Integrations) operates across 85VAC to 132VAC input range with Triac dimming and internal switching. This part supports multiple topologies (Flyback, Buck, Boost) and operates at -40°C to 150°C, exceeding the LC5210D temperature range. Product status is Active with RoHS Compliance. Mounting transition from 8-DIP through-hole to 16-SOIC surface mount requires PCB redesign.
For Lower Current Triac Dimming Applications
HV9922N3-G (Microchip Technology) and HV9923N8-G (Microchip Technology) provide Triac dimming with 20V to 400V supply voltage compatibility. Output current is reduced to 50mA and 30mA respectively. Both parts are Active status with ROHS3 compliance. HV9922N3-G maintains through-hole mounting (TO-92-3), while HV9923N8-G requires surface mount (SOT-89-3).
For Analog Dimming with Lower Supply Voltage
LM3444MA/NOPB and LM3444MAX/NOPB (National Semiconductor and Texas Instruments respectively) feature analog dimming with 8V to 13V supply range. These parts lack internal switching elements and require external switch implementation. Both support -40°C to 125°C operating temperature. LM3444MAX/NOPB is Active status with ROHS3 compliance and highest inventory availability (25,900 units).
For Flyback Topology with 1A Output
TPS92010D (Texas Instruments) provides 1A output current with Flyback topology and maximum 21V supply voltage. Internal switching is integrated. Product status is Active with ROHS3 compliance. Supply voltage range is significantly restricted compared to LC5210D.
All substitute candidates are Active status products with current manufacturing support, ensuring long-term availability and design continuity.
Frequently Asked Questions (FAQ)
Q: Can the HV9922N3-G directly replace the LC5210D in existing designs?
A: HV9922N3-G is not a direct replacement. While both are AC DC offline switchers with Step-Down topology and internal switching, HV9922N3-G output current is 50mA versus LC5210D's 800mA. Supply voltage range is compatible (20V to 400V), but dimming method differs (Triac versus PWM). Operating temperature maximum is 85°C versus 105°C. Through-hole package compatibility (TO-92-3) simplifies PCB integration but electrical performance differs significantly.
Q: What is the primary limitation preventing direct substitution?
A: The LC5210D's combination of 800mA output current, PWM dimming, and 25V to 400V supply voltage range is not replicated in any substitute part provided. Most alternatives reduce output current to 30mA to 50mA or restrict supply voltage to 8V to 13V range. Topology variations (Flyback versus Buck) and dimming method differences (Triac or Analog versus PWM) further limit direct substitution.
Q: Which substitute part maintains the highest supply voltage compatibility?
A: HV9922N3-G, HV9923N8-G, and LYT3328D-TL all support 400V maximum supply voltage. HV9922N3-G and HV9923N8-G operate from 20V to 400V DC. LYT3328D-TL operates from 85VAC to 132VAC, requiring AC input rather than DC. For DC supply applications, HV9922N3-G and HV9923N8-G are preferred.
Q: Are all substitute parts RoHS compliant?
A: Most substitute parts carry RoHS or ROHS3 compliance certification. LM3444MA/NOPB does not list RoHS status in provided specifications. All other candidates (HV9922N3-G, HV9923N8-G, LM3444MAX/NOPB, LM3445MX/NOPB, LYT3328D-TL, TPS92010D) are RoHS or ROHS3 compliant.
Q: What packaging considerations apply when selecting substitutes?
A: LC5210D uses 8-DIP through-hole packaging. HV9922N3-G maintains through-hole compatibility (TO-92-3). All other substitutes require surface mount technology: HV9923N8-G (SOT-89-3), LM3444MA/NOPB and LM3444MAX/NOPB (8-SOIC), LM3445MX/NOPB (14-SOIC), LYT3328D-TL (16-SOIC), and TPS92010D (8-SOIC). PCB redesign is necessary for surface mount migration.
Q: Which substitute offers the highest output current capability?
A: TPS92010D provides 1A output current, exceeding LC5210D's 800mA. However, TPS92010D uses Flyback topology with maximum 21V supply voltage, significantly restricting input voltage range compared to LC5210D's 25V to 400V specification.
Q: Can analog dimming substitutes replace PWM dimming functionality?
A: Analog dimming and PWM dimming are distinct control methods. LM3444MA/NOPB and LM3444MAX/NOPB provide analog dimming control, requiring different circuit implementation and control signal characteristics compared to PWM dimming. Direct functional replacement is not possible without redesigning the dimming control circuit.
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