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Product Detailed Parameters
- Description：IC BATT CHG LI-ION UCSP75M2
- Series：-
- Mfr：Rohm Semiconductor
- Package：Tape & Reel (TR),Cut Tape (CT)
- Battery Chemistry：Lithium Ion
- Voltage - Supply (Max)：5.5V
- Operating Temperature：-30°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：20-VFBGA, CSPBGA
- Supplier Device Package：20-UCSP75M2 (2.2x2.2)
- Number of Cells：-
- Current - Charging：-
- Programmable Features：-
- Fault Protection：Short Circuit
- Charge Current - Max：-
- Battery Pack Voltage：8.4V
- Interface：USB
- Grade：-
- Qualification：-
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Overview
The BD8665GW-E2 is a lithium-ion battery charge management IC from ROHM Semiconductor, designed for two-cell series configurations. It operates with a 5 V input supply and delivers an 8.4 V charging output voltage. The device features a UCSP75M2-20 package suitable for SMD/SMT installation. It supports a maximum power dissipation of 1 W and functions within a temperature range of -30 C to +85 C. The quiescent operating current is specified at 60 uA.
Feature Summary
- Integrates boost switching topology for efficient step-up charging from standard 5V sources.
- Includes integrated input detection (VBUSOK) and power good indicators for system monitoring.
- Features low on-resistance integrated MOSFETs to minimize conduction losses during operation.
Applications
- Charging two-series lithium-ion battery packs via USB or 5V adapters
- Portable electronic devices requiring compact charge management solutions
- Consumer electronics utilizing 2S Li-ion battery configurations
Procurement Notes
Verify the specific suffix E2 for RoHS compliance and lead times directly with authorized distributors. Confirm package availability in cut tape or reel formats based on production volume requirements. Check for obsolescence status as this component family may have successor models. Ensure design-in compatibility with existing PCB footprints for the UCSP75M2-20 package before finalizing procurement orders.
Selection Notes
Select this IC when designing systems that require charging 2S lithium-ion batteries from a 5V source. The UCSP75M2-20 package offers a small footprint suitable for space-constrained applications. Consider the 60 uA quiescent current for low-power standby requirements. Verify thermal performance under maximum load conditions given the 1 W power dissipation limit.
Part Context
This component belongs to ROHM's battery management product line, specifically targeting portable electronics. It complements other PMICs by providing dedicated charge control functionality. The BD8665GW-E2 is part of a series that includes variants like the BD8664GW and BD8668GW, differing primarily in pin count and specific charge voltage tolerances.
Replacement Considerations
The BD8664GW-E2 serves as a similar alternative within the same family, offering comparable functionality with slight variations in charge voltage specifications. Designers should verify pinout compatibility and electrical parameter alignment before substituting components in existing designs.
