LC5223D LED Driver IC Equivalent & Substitute Parts

Part Overview

The LC5223D is an AC DC offline switcher LED driver IC manufactured by Sanken Electric USA Inc., designed for offline power management applications requiring PWM dimming control. This device features an 800mA output capability with integrated internal switching, supporting both step-down (buck) and step-up (boost) topologies across a 25V to 200V supply range. The LC5223D is classified as obsolete, making equivalent substitute parts necessary for new designs and ongoing production requirements. Active alternatives from manufacturers including Diodes Incorporated, IXYS, Power Integrations, and Monolithic Power Systems provide functionally compatible solutions with modern product status and enhanced availability.

Key Parameters

Parameter	LC5223D Value
Manufacturer	Sanken Electric USA Inc.
Product Status	Obsolete
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	800mA
Dimming	PWM
Operating Temperature	-40°C ~ 105°C (TA)
Mounting Type	Through Hole
Package / Case	8-DIP (0.300", 7.62mm), 7 Leads
RoHS Status	RoHS Compliant
MSL	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the LC5223D is determined by the following critical parameters:

Primary Compatibility Criteria:

AC DC offline switcher topology with internal switching capability
Single output configuration
PWM dimming control method
Operating temperature range of -40°C to 105°C minimum
RoHS compliance status

Secondary Compatibility Considerations:

Supply voltage range overlap (minimum 25V to 200V requirement)
Output current capability (800mA reference)
Mounting type (through-hole preferred for direct replacement; surface-mount alternatives acceptable for redesign)
Package form factor (8-DIP through-hole is primary; alternative packages require PCB modification)

Substitute parts are grouped into two categories: direct through-hole replacements maintaining the 8-DIP package format, and surface-mount alternatives requiring PCB redesign but offering active product status and enhanced availability.

Parameter Comparison

Part Number	Manufacturer	Type	Topology	Internal Switch	Supply Min (V)	Supply Max (V)	Output Current	Dimming	Temp Range	Package	Product Status	RoHS
LC5223D	Sanken Electric USA Inc.	AC DC Offline Switcher	Buck, Boost	Yes	25	200	800mA	PWM	-40 to 105°C	8-DIP	Obsolete	RoHS Compliant
AL1697-20CS7-13	Diodes Incorporated	AC DC Offline Switcher	Buck, Boost	Yes	8.5	18	2A	Triac	-40 to 105°C	7-SO	Active	ROHS3 Compliant
AL9901FDF-13	Diodes Incorporated	AC DC Offline Switcher	Buck	Yes	15	500	400mA (Switch)	Analog, PWM	-40 to 105°C	12-UDFN	Active	ROHS3 Compliant
AL9902FDF-13	Diodes Incorporated	AC DC Offline Switcher	Buck, Boost	Yes	20	500	400mA	Analog, PWM	-40 to 105°C	12-UDFN	Active	ROHS3 Compliant
AL9902S16-13	Diodes Incorporated	AC DC Offline Switcher	Buck, Boost	Yes	20	500	400mA	Analog, PWM	-40 to 105°C	16-SOIC	Active	ROHS3 Compliant
AL9910A-5S-13	Diodes Incorporated	AC DC Offline Switcher	Buck, Boost	No	20	500	—	Analog, PWM	-40 to 85°C	8-SOIC	Active	ROHS3 Compliant
CPC9909N	IXYS Integrated Circuits Division	AC DC Offline Switcher	Buck, Boost	No	8	550	—	PWM	-40 to 85°C	8-SOIC	Active	ROHS3 Compliant
LNK405EG	Power Integrations	AC DC Offline Switcher	Flyback	Yes	36	725	1.24A	Triac	-40 to 150°C	eSIP-7C	Active	RoHS Compliant
MP4032-2GS-Z	Monolithic Power Systems Inc.	AC DC Offline Switcher	Buck, Boost	Yes	10.3	27	—	Triac	-40 to 125°C	8-SOIC	Active	ROHS3 Compliant
MP4060GS-Z	Monolithic Power Systems Inc.	AC DC Offline Switcher	Buck, Boost	No	200VAC	265VAC	—	Triac	-40 to 125°C	8-SOIC	Active	ROHS3 Compliant
MP4068GS	Monolithic Power Systems	AC DC Offline Switcher	Buck, Boost	No	4.1	5	160mA	Triac	—	8-SOIC	Active	ROHS3 Compliant

Engineering Selection Recommendations

For Direct Through-Hole Replacement: No substitute parts maintain the 8-DIP through-hole package format. All active alternatives use surface-mount packages (SOIC, UDFN, eSIP), requiring PCB redesign for implementation.

For Surface-Mount Redesign with Buck-Boost Topology and PWM Dimming: AL9902S16-13 (Diodes Incorporated) and AL9902FDF-13 (Diodes Incorporated) provide the closest functional alignment, maintaining buck-boost topology, PWM dimming capability, and -40°C to 105°C operating range. Both devices are ROHS3 compliant with active product status and high inventory availability (1054 and 1119 units respectively). AL9902S16-13 offers 16-SOIC packaging; AL9902FDF-13 provides 12-UDFN form factor.

For Extended Supply Voltage Range: AL9901FDF-13 (Diodes Incorporated) supports 15V to 500V supply range with PWM dimming and buck topology, suitable for applications requiring higher input voltage tolerance. Product status is active with ROHS3 compliance.

For Triac Dimming Applications: MP4032-2GS-Z (Monolithic Power Systems Inc.) and AL1697-20CS7-13 (Diodes Incorporated) provide triac dimming control with buck-boost topology and active product status. MP4032-2GS-Z operates -40°C to 125°C; AL1697-20CS7-13 operates -40°C to 105°C.

For High-Temperature Operation: LNK405EG (Power Integrations) supports -40°C to 150°C operating range with 1.24A output current and active product status. Topology is flyback with triac dimming; supply range extends to 725V maximum.

All recommended substitutes maintain RoHS compliance and MSL ratings suitable for standard manufacturing environments.

Frequently Asked Questions (FAQ)

Q: Can AL9902S16-13 directly replace LC5223D without PCB modification? A: No. AL9902S16-13 uses 16-SOIC surface-mount packaging versus LC5223D's 8-DIP through-hole format. PCB redesign is required. However, electrical parameters (buck-boost topology, PWM dimming, -40°C to 105°C range) are compatible.

Q: What is the primary difference between AL9902S16-13 and AL9902FDF-13? A: Both are Diodes Incorporated AL9902 base devices with identical electrical specifications (20V to 500V supply, 400mA output, buck-boost topology, PWM dimming). AL9902S16-13 uses 16-SOIC packaging; AL9902FDF-13 uses 12-UDFN packaging. Selection depends on PCB layout constraints and manufacturing capabilities.

Q: Why do some substitutes list "—" for output current? A: AL9910A-5S-13 and CPC9909N are controller ICs without integrated output switches, requiring external switching elements. Output current depends on external component selection rather than internal device rating.

Q: Is LNK405EG suitable for applications requiring 800mA output? A: LNK405EG provides 1.24A output capability, exceeding the 800mA requirement. However, topology is flyback rather than buck-boost, and supply voltage minimum is 36V versus LC5223D's 25V. Application-specific validation is required.

Q: What does ROHS3 compliance mean versus RoHS Compliant? A: Both indicate RoHS directive compliance. ROHS3 refers to compliance with the most recent RoHS 3 directive (2015/863/EU). All listed substitutes meet current RoHS requirements.

Q: Can MP4060GS-Z replace LC5223D in standard offline LED driver applications? A: MP4060GS-Z is optimized for 200VAC to 265VAC direct AC input without internal DC conversion. LC5223D accepts 25V to 200V DC input. Supply voltage specifications are fundamentally different; application compatibility requires detailed circuit analysis.

Q: What is MSL (Moisture Sensitivity Level) and why does it matter? A: MSL indicates maximum storage time at specified humidity before component degradation. LC5223D and most substitutes specify MSL 1 (unlimited storage). MP4032-2GS-Z and AL9902FDF-13 specify MSL 2 or 3, requiring controlled storage conditions. Standard manufacturing environments typically accommodate MSL 2 and 3 components.

Q: Are all substitute parts available in the same tape-and-reel packaging as LC5223D? A: Packaging formats vary. AL9902S16-13, AL9902FDF-13, AL9901FDF-13, and MP4032-2GS-Z are supplied in tape-and-reel (TR). CPC9909N uses tube packaging. LNK405EG packaging is not specified. Confirm packaging requirements with supplier before procurement.

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