LC5222D LED Driver IC Equivalent & Substitute Parts

Part Overview

The LC5222D is an AC DC offline switcher LED driver IC manufactured by Sanken Electric USA Inc., designed for offline PWM dimming applications with 400mA output capability. This part operates across a wide input voltage range of 25V to 200V and supports both step-down (buck) and step-up (boost) topologies with internal switching capability.

The LC5222D is classified as obsolete, making substitute parts necessary for new designs and ongoing production requirements. Active equivalent parts from manufacturers including Diodes Incorporated, Monolithic Power Systems Inc., and Texas Instruments provide functional alternatives with comparable electrical and mechanical characteristics.

Key Parameters

Parameter	LC5222D Value
Manufacturer	Sanken Electric USA Inc.
Category	Power Management (PMIC)
Type	AC DC Offline Switcher
Topology	Step-Down (Buck), Step-Up (Boost)
Internal Switch(s)	Yes
Number of Outputs	1
Voltage - Supply (Min)	25V
Voltage - Supply (Max)	200V
Current - Output / Channel	400mA
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

Substitution of the LC5222D is determined by the following critical parameters:

Primary Substitution Criteria:

AC DC offline switcher topology with step-down (buck) and/or step-up (boost) capability
Single output configuration
PWM or analog/PWM dimming support
Operating temperature range compatibility (-40°C minimum)
RoHS3 compliance for active parts

Secondary Compatibility Factors:

Input voltage range overlap (minimum 25V supply capability)
Output current capability (400mA reference)
Package form factor (through-hole or surface mount with functional equivalence)

The substitute parts listed below meet these criteria with varying degrees of parameter alignment. Surface mount alternatives (8-SOIC, 8-SO-EP, SOT-23) represent modern packaging equivalents to the through-hole 8-DIP configuration. Parts with active product status and RoHS3 compliance are preferred for new designs.

Parameter Comparison

Part Number	Manufacturer	Type	Topology	Internal Switch	Voltage Min (V)	Voltage Max (V)	Current Output (mA)	Dimming	Package	Status
LC5222D	Sanken Electric USA Inc.	AC DC Offline Switcher	Buck, Boost	Yes	25	200	400	PWM	8-DIP	Obsolete
AL9910ASP-13	Diodes Incorporated	AC DC Offline Switcher	Buck, Boost	No	20	500	—	Analog, PWM	8-SO-EP	Active
AL9910S-13	Diodes Incorporated	AC DC Offline Switcher	Buck, Boost	No	15	500	—	Analog, PWM	8-SO	Active
MP4030AGS	Monolithic Power Systems Inc.	AC DC Offline Switcher	Flyback	No	11	27	—	Triac	8-SOIC	Active
MP4060GK-Z	Monolithic Power Systems Inc.	AC DC Offline Switcher	Buck, Boost	No	200VAC	265VAC	—	Triac	10-MSOP	Active
MP4068GN-Z	Monolithic Power Systems Inc.	AC DC Offline Switcher	Buck, Boost	No	4.1	5	160	Triac	8-SOIC-EP	Active
MP4068GS-Z	Monolithic Power Systems Inc.	AC DC Offline Switcher	Buck, Boost	No	4.1	5	160	Triac	8-SOIC-7A	Active
MP4088GS	Monolithic Power Systems Inc.	AC DC Offline Switcher	Buck, Boost	Yes	4.5	5	—	Triac	8-SOIC-7A	Active
TPS92075DDC/NOPB	Texas Instruments	AC DC Offline Switcher	Buck, Boost	No	11	18	—	Triac	SOT-23-THIN	Active

Engineering Selection Recommendations

For Direct Functional Replacement:

AL9910ASP-13 and AL9910S-13 from Diodes Incorporated provide the closest functional alignment to the LC5222D. Both parts maintain AC DC offline switcher topology with buck and boost capability, support PWM dimming (with additional analog dimming option), and operate across compatible voltage ranges. AL9910ASP-13 extends to 500V maximum supply voltage, exceeding the LC5222D specification. Both parts carry ROHS3 compliance and active product status, making them suitable for new production designs.

For High-Voltage Input Applications:

MP4060GK-Z from Monolithic Power Systems Inc. is specified for 200VAC to 265VAC input range, directly matching the LC5222D's high-voltage capability. This part maintains buck and boost topology with triac dimming support. The 10-MSOP package represents a modern surface mount alternative to the through-hole 8-DIP configuration.

For Low-Voltage Applications:

MP4068GS-Z and MP4068GN-Z provide buck and boost topology with 160mA output current capability at 4.1V to 5V input range. These parts are suitable for applications where the LC5222D's 25V minimum input voltage exceeds system requirements. Both carry active product status and RoHS3 compliance.

Compliance and Availability:

All recommended substitute parts carry RoHS3 compliance and active product status. Inventory availability is confirmed for all listed alternatives, with MP4068GS-Z showing the highest stock level (276,700 units). The LC5222D's obsolete status necessitates transition to active alternatives for ongoing production support.

Frequently Asked Questions (FAQ)

Q: Can AL9910ASP-13 directly replace LC5222D in existing through-hole designs?

A: AL9910ASP-13 is a surface mount 8-SO-EP package, requiring PCB redesign from the through-hole 8-DIP configuration. Functional compatibility exists for AC DC offline switcher applications with buck and boost topology, but physical board layout modification is necessary.

Q: What is the primary difference between AL9910ASP-13 and AL9910S-13?

A: Both parts share identical topology and dimming capability. AL9910ASP-13 includes an exposed pad (8-SO-EP) for enhanced thermal management, while AL9910S-13 uses standard 8-SO packaging. AL9910ASP-13 supports 20V minimum input; AL9910S-13 supports 15V minimum input. Operating temperature range differs: AL9910ASP-13 operates to 105°C; AL9910S-13 to 85°C.

Q: Is MP4068GS-Z suitable for the LC5222D's 25V to 200V input range?

A: No. MP4068GS-Z is specified for 4.1V to 5V input range only, making it unsuitable for applications requiring the LC5222D's 25V minimum input voltage. This part is appropriate only for low-voltage LED driver applications.

Q: What dimming capability differences exist between substitute parts?

A: The LC5222D supports PWM dimming. Substitute parts offer PWM (AL9910 series), triac (MP4030, MP4060, MP4068, MP4088, TPS92075), or combined analog/PWM dimming (AL9910 series). Triac dimming is incompatible with PWM-only system designs. Verify dimming interface requirements before selection.

Q: Does MP4088GS include internal switching like the LC5222D?

A: Yes. MP4088GS includes internal switching capability, matching the LC5222D's internal switch specification. Most other substitute parts (AL9910 series, MP4030, MP4060, MP4068, TPS92075) do not include internal switches, requiring external switching components in circuit design.

Q: Are all substitute parts RoHS compliant?

A: Yes. All listed substitute parts carry RoHS3 compliance. The LC5222D carries RoHS compliance (non-RoHS3 designation). RoHS3 compliance ensures compatibility with current environmental regulations for new production designs.

Q: What package options are available for surface mount conversion?

A: Surface mount alternatives include 8-SOIC (MP4030AGS, MP4068GN-Z, MP4068GS-Z, MP4088GS), 8-SO-EP (AL9910ASP-13), 8-SO (AL9910S-13), 10-MSOP (MP4060GK-Z), and SOT-23-THIN (TPS92075DDC/NOPB). Package selection depends on PCB layout constraints and thermal management requirements.

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