AL8820SP-13 Equivalent & Substitute Parts

Part Overview

The AL8820SP-13 is an AC DC offline switcher LED driver IC manufactured by Diodes Incorporated, designed for single-output applications with integrated switching capability. This device operates across a 5V to 36V supply range and delivers up to 2A output current with both step-down and step-up topology support. The AL8820SP-13 is classified as obsolete, making equivalent substitute parts necessary for new designs and ongoing production requirements. Substitute parts must maintain functional compatibility while meeting current product availability and compliance standards.

Key Parameters

Parameter	AL8820SP-13
Manufacturer	Diodes Incorporated
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)	5V
Voltage - Supply (Max)	36V
Current - Output / Channel	2A
Frequency	1MHz
Operating Temperature	-40°C ~ 105°C (TA)
Package / Case	8-SOIC (0.154", 3.90mm Width) Exposed Pad
Product Status	Obsolete
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution of the AL8820SP-13 is determined by the following critical parameters: AC DC offline switcher topology, single output configuration, internal switching capability, and operating voltage range. The AL8820SP-13 combines step-down and step-up functionality with integrated switching, which limits direct equivalents to parts sharing these specific characteristics.

The substitute parts identified fall into distinct functional categories based on topology and dimming method:

Topology-Based Grouping:

Step-Down/Step-Up with PWM Dimming: MP4653GY-Z, MP4054AGJ-Z
Flyback with Triac Dimming: TPS92210DR
Step-Down with Triac Dimming: HV9923N8-G
Step-Down/Step-Up with PWM Dimming: CPC9909N

Key Substitution Criteria:

AC DC offline switcher classification
Single output configuration
Internal or external switching capability
Supply voltage compatibility within application range
Dimming method (PWM or Triac)
Package form factor compatibility

Parameter Comparison

Parameter	AL8820SP-13	MP4653GY-Z	TPS92210DR	MP4054AGJ-Z	CPC9909N	HV9923N8-G
Manufacturer	Diodes Incorporated	Monolithic Power Systems Inc.	Texas Instruments	Monolithic Power Systems	IXYS Integrated Circuits Division	Microchip Technology
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
Number of Outputs	1	1	1	1	1	1
Voltage - Supply (Min)	5V	9V	9V	12V	8V	20V
Voltage - Supply (Max)	36V	30V	20V	28V	550V	400V
Topology	Step-Down (Buck), Step-Up (Boost)	Half-Bridge	Flyback	Step-Down (Buck), Step-Up (Boost)	Step-Down (Buck), Step-Up (Boost)	Step-Down (Buck)
Internal Switch(s)	Yes	No	No	No	No	Yes
Dimming	-	Analog, PWM	Triac	PWM	PWM	Triac
Operating Temperature	-40°C ~ 105°C (TA)	-40°C ~ 125°C (TJ)	-40°C ~ 125°C (TA)	-40°C ~ 125°C (TJ)	-40°C ~ 85°C (TA)	-40°C ~ 85°C (TA)
Package / Case	8-SOIC (0.154", 3.90mm Width) Exposed Pad	20-SOIC (0.295", 7.50mm Width)	8-SOIC (0.154", 3.90mm Width)	SOT-23-8 Thin, TSOT-23-8	8-SOIC (0.154", 3.90mm Width)	TO-243AA
Product Status	Obsolete	Active	Active	Active	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

MP4653GY-Z is the primary substitute for applications requiring half-bridge topology with dual dimming capability (analog and PWM). This part maintains active product status with extended temperature range (-40°C to 125°C junction temperature) and high inventory availability (63,800 pcs). Package form factor differs (20-SOIC vs. 8-SOIC), requiring PCB layout modification. Supply voltage range (9V to 30V) overlaps the AL8820SP-13 operating window.

TPS92210DR serves as an alternative for triac-dimming applications with flyback topology. This Texas Instruments device operates within a narrower supply range (9V to 20V) and is packaged in 8-SOIC form factor matching the original part's footprint. Active product status and high inventory (32,900 pcs) support production continuity.

MP4054AGJ-Z addresses applications within the 12V to 28V supply range with PWM dimming and step-down/step-up capability. This part is available in SOT-23-8 package, requiring significant PCB redesign. Extended operating temperature range (-40°C to 125°C junction temperature) and active status support long-term availability.

CPC9909N provides step-down/step-up functionality with PWM dimming across an extended supply voltage range (8V to 550V). This IXYS device operates at higher frequency (30kHz to 120kHz) compared to the AL8820SP-13 (1MHz). Package compatibility exists (8-SOIC), and active product status ensures availability.

HV9923N8-G is suitable for triac-dimming applications with step-down topology and integrated switching. This Microchip device operates within a higher supply voltage range (20V to 400V) and delivers lower output current (30mA). Package form factor differs (SOT-89-3), requiring board redesign.

All substitute parts maintain ROHS3 compliance and EAR99 export classification consistent with the original part.

Frequently Asked Questions (FAQ)

Q: Can MP4653GY-Z directly replace AL8820SP-13 without PCB modification?

A: No. While both are AC DC offline switchers with single output, MP4653GY-Z uses 20-SOIC packaging versus AL8820SP-13's 8-SOIC form factor. PCB layout redesign is required. Additionally, MP4653GY-Z employs half-bridge topology rather than step-down/step-up, necessitating circuit topology evaluation.

Q: Which substitute maintains the closest supply voltage compatibility?

A: MP4653GY-Z (9V to 30V) and CPC9909N (8V to 550V) both overlap the AL8820SP-13 range (5V to 36V). MP4653GY-Z provides the tightest voltage window alignment for applications operating between 9V and 30V.

Q: Are all substitutes suitable for lighting applications?

A: All substitute parts are classified for lighting or backlight applications. TPS92210DR, HV9923N8-G, and MP4653GY-Z explicitly list lighting in their application field. CPC9909N lists signage applications. Application-specific circuit design validation is required.

Q: What is the primary difference between PWM and Triac dimming substitutes?

A: PWM dimming (MP4653GY-Z, MP4054AGJ-Z, CPC9909N) uses pulse-width modulation for brightness control. Triac dimming (TPS92210DR, HV9923N8-G) uses phase-angle control compatible with standard wall dimmers. Selection depends on the dimming interface required by the end application.

Q: Can TPS92210DR be used in applications requiring step-up (boost) topology?

A: No. TPS92210DR employs flyback topology, which differs from the AL8820SP-13's step-down/step-up capability. Flyback topology is suitable for isolated output applications but does not provide boost functionality.

Q: Which substitute offers the widest operating temperature range?

A: MP4653GY-Z and MP4054AGJ-Z both operate to -40°C to 125°C (junction temperature), exceeding the AL8820SP-13's -40°C to 105°C (ambient temperature) specification. CPC9909N and HV9923N8-G are limited to -40°C to 85°C.

Q: Are package-compatible substitutes available?

A: TPS92210DR and CPC9909N both use 8-SOIC packaging matching AL8820SP-13's footprint, enabling direct PCB placement without layout modification. MP4653GY-Z (20-SOIC), MP4054AGJ-Z (SOT-23-8), and HV9923N8-G (SOT-89-3) require board redesign.

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