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MCP73833-B6I/MF Equivalent & Substitute Parts
Part Overview
The MCP73833-B6I/MF is a single-cell lithium ion/polymer battery charger IC manufactured by Microchip Technology in a 10-DFN (3x3) surface mount package. This part is classified as obsolete, making equivalent substitute parts necessary for ongoing design support and production continuity. The MCP73833 series provides constant-current/constant-voltage charging with programmable charge current up to 1.1A and integrated over-temperature fault protection.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer | Microchip Technology |
| Category | Power Management (PMIC) |
| Battery Chemistry | Lithium Ion/Polymer |
| Number of Cells | 1 |
| Charge Current - Max | 1.1A |
| Battery Pack Voltage | 4.2V |
| Voltage - Supply (Max) | 6V |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Package / Case | 10-VFDFN Exposed Pad |
| Mounting Type | Surface Mount |
| RoHS Status | ROHS3 Compliant |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
Substitute Part Grouping Explanation
Substitution of the MCP73833-B6I/MF is determined by strict equivalence across the following parameters:
- Battery Chemistry: Lithium Ion/Polymer
- Number of Cells: 1
- Charge Current - Max: 1.1A
- Battery Pack Voltage: 4.2V
- Voltage - Supply (Max): 6V
- Operating Temperature: -40°C ~ 85°C (TA)
- Package / Case: 10-VFDFN Exposed Pad
- Mounting Type: Surface Mount
- RoHS Status: ROHS3 Compliant
- Moisture Sensitivity Level (MSL): 1 (Unlimited)
All substitute parts listed maintain identical electrical specifications and physical packaging. Differences exist only in product status (active vs. obsolete) and packaging format (tube vs. other formats). The MCP73833 and MCP73834 base product numbers are functionally equivalent within this parameter set.
Parameter Comparison
| Part Number | Manufacturer | Product Status | Battery Chemistry | Cells | Max Charge Current | Battery Voltage | Max Supply Voltage | Operating Temp | Package | RoHS | Inventory (Pcs) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| MCP73833-B6I/MF | Microchip Technology | Obsolete | Li-Ion/Polymer | 1 | 1.1A | 4.2V | 6V | -40°C ~ 85°C | 10-VFDFN | ROHS3 | 994 |
| MCP73833-AMI/MF | Microchip Technology | Active | Li-Ion/Polymer | 1 | 1.1A | 4.2V | 6V | -40°C ~ 85°C | 10-VFDFN | ROHS3 | 9189 |
| MCP73833-BZI/MF | Microchip Technology | Active | Li-Ion/Polymer | 1 | 1.1A | 4.2V | 6V | -40°C ~ 85°C | 10-VFDFN | ROHS3 | 1270 |
| MCP73833-CNI/MF | Microchip Technology | Active | Li-Ion/Polymer | 1 | 1.1A | 4.2V | 6V | -40°C ~ 85°C | 10-VFDFN | ROHS3 | 1409 |
| MCP73833-FCI/MF | Microchip Technology | Active | Li-Ion/Polymer | 1 | 1.1A | 4.2V | 6V | -40°C ~ 85°C | 10-VFDFN | ROHS3 | 3932 |
| MCP73833-GPI/MF | Microchip Technology | Active | Li-Ion/Polymer | 1 | 1.1A | 4.2V | 6V | -40°C ~ 85°C | 10-VFDFN | ROHS3 | 1263 |
| MCP73834-CNI/MF | Microchip Technology | Active | Li-Ion/Polymer | 1 | 1.1A | 4.2V | 6V | -40°C ~ 85°C | 10-VFDFN | ROHS3 | 1332 |
| MCP73834-FCI/MF | Microchip Technology | Active | Li-Ion/Polymer | 1 | 1.1A | 4.2V | 6V | -40°C ~ 85°C | 10-VFDFN | ROHS3 | 4396 |
| MCP73834-GPI/MF | Microchip Technology | Active | Li-Ion/Polymer | 1 | 1.1A | 4.2V | 6V | -40°C ~ 85°C | 10-VFDFN | ROHS3 | 1316 |
Engineering Selection Recommendations
All listed substitute parts maintain full electrical and mechanical compatibility with the MCP73833-B6I/MF. Selection should prioritize active product status parts to ensure long-term availability and manufacturing support. MCP73833-AMI/MF offers the highest inventory level (9189 units) among active equivalents. MCP73834 series variants provide identical electrical performance and are suitable for direct substitution. All parts carry ROHS3 compliance and MSL Level 1 rating, meeting standard industrial reliability requirements.
Frequently Asked Questions (FAQ)
Q: Can MCP73834 variants substitute for MCP73833 variants? A: Yes. Both MCP73833 and MCP73834 base product numbers meet all specified electrical parameters: 1.1A maximum charge current, 4.2V battery voltage, 6V maximum supply voltage, and -40°C to 85°C operating temperature range. They share identical 10-VFDFN packaging and compliance certifications.
Q: What is the difference between MCP73833-B6I/MF and MCP73833-AMI/MF? A: The primary difference is product status. MCP73833-B6I/MF is obsolete, while MCP73833-AMI/MF is active. All electrical specifications, package type, and compliance ratings are identical. MCP73833-AMI/MF has significantly higher inventory availability.
Q: Are packaging formats interchangeable? A: All listed parts use the same 10-VFDFN Exposed Pad package with surface mount configuration. Packaging format variations (tube vs. other formats) do not affect electrical or mechanical compatibility.
Q: Do all substitutes meet RoHS and REACH requirements? A: Yes. All listed parts are ROHS3 compliant and REACH unaffected, meeting standard environmental and regulatory requirements for industrial applications.
Q: Which substitute offers the best availability? A: MCP73833-FCI/MF and MCP73834-FCI/MF offer the highest inventory levels at 3932 and 4396 units respectively, both with active product status.
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