SiLM2661
SiLM2661 is Battery Pack Front-End Charge/Discharge High-Side NFET Driver manufactured by Sillumin.
- Part of the SiLM2660 comparator family.
- Part of the SiLM2660 comparator family.
DESCRIPTION
The Si LM2660/Si LM2661 is a low-power, high-side N-channel FET driver for battery charge/discharge system control. A high-side control avoids ground disconnection in the system and allows continuous munication between the battery pack and host system. The Si LM2660 has additional P-channel FET control to allow low-current pre-charge to a deeply discharged battery, and it also integrates a PACK+ voltage monitor for the host to sense the PACK+ voltage.
The independent enable inputs allow charge and discharge FETs to be turned on and off separately, offering the great design flexibility for battery systems.
The Si LM2660 is available in TSSOP-16 and Si LM2661 is available in SOP8 package.
APPLICATIONS
- E-bikes, E-Scooter and E-Motors
- Energy storage systems
- Wireless base station battery systems
- 12V to 48V battery packs
FEATURES
- High side NFET driver with fast turn-on and turnoff times for battery protection
- Pre-charge PFET driver provides a currentlimited pre-charge function for depleted cell-pack (only for Si LM2660)
- Independent enable control for charging and discharging
- Scalable external capacitor-based charge pump to acmodate a different range of FETs in parallel
- High voltage tolerant (100 V absolute maximum)
- Internal switch to enable pack-voltage sensing
(only for Si LM2660)
- mon and separate charge and discharge path configuration support
- Low current consumption
- Normal mode: 40 µA
- Shutdown: less than 10 µA
TYPICAL APPLICATION CIRCUIT
RBAT_FLT 100Ω
CVDDCP 470n F
CBAT_FLT
10n F
Battery
From
RPCHG_LIM
MPCHG
Si LM2660 VDDCP
PCHG
CHG_EN CP_EN DSG_EN PMON_EN PCHG_EN
PACK PACKDIV
RPD2...
