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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：8.3V
- Interface：USB
- Grade：-
- Qualification：-
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Overview
The BD8664GW-E2 is a charge management IC designed for lithium-ion battery systems. It operates with a supply voltage range of 4.1 V to 5.5 V and delivers an output charge voltage of 8.3 V ±0.5%. The device supports a maximum output current of 60 uA and draws a typical operating supply current of 71 uA. It features a UCSP75M2-20 package with dimensions of 2.2x2.2 mm and a thickness of 0.85 mm. The component functions within a temperature range of -30°C to +85°C, with a power dissipation rating of 1 W.
Feature Summary
- Integrates boost switching topology for charging two batteries from a 5V input source
- Includes integrated input detection (VBUSOK) and charge-on/off control via EN pin
- Features low Ron integrated MOSFETs and output short circuit protection
Applications
- Lithium-ion battery charging in portable electronic devices
- USB-powered battery management systems
- Two-cell series battery pack charging applications
Procurement Notes
Verify the specific suffix E2 against the manufacturer's datasheet to confirm compliance with RoHS directives and material declarations. Ensure the UCSP75M2-20 package footprint matches the target PCB layout. Confirm that the 8.3 V output voltage aligns with the connected battery chemistry requirements before finalizing procurement orders.
Selection Notes
Select this component when a compact solution for dual-cell lithium-ion charging from a 5V USB source is required. The UCSP75M2 package offers a small form factor suitable for space-constrained designs. Consider the 71 uA supply current for low-power standby applications. Verify thermal performance given the 1 W power dissipation limit in the specified operating temperature range.
Part Context
This part belongs to ROHM Semiconductor's battery management product line, specifically categorized under charge management ICs. It is distinct from other models like the BD8668GW-E2, which targets an 8.4 V output. The BD8664GW-E2 is identified by its 8.3 V charge voltage specification and 20-pin variant of the UCSP75M2 package.
Replacement Considerations
Publicly confirmed substitute part numbers are not available in the provided documentation. Consult the manufacturer directly for qualified alternatives or updated design-in recommendations.
