Intersil ISL9238HRTZ-T7A Buck-Boost NVDC Charger provides the NVDC (Narrow Output Voltage DC) charging function, system bus regulation and protection features for a tablet, ultrabook, notebook, power bank and any USB-C interface platforms. Intersils advanced R3 Technology is used to provide high light-load efficiency and fast transient response. In charging mode, the ISL9238HRTZ-T7A takes input power from a wide range of DC power sources. It then safely charges battery packs with up to 4-series cell Li-ion batteries. As an NVDC topology charger, it also regulates the system output to a narrow DC range for stable system bus voltage. The system power can be provided from the adapter, battery or a combination of both. The ISL9238HRTZ-T7A can operate with only a battery, only an adapter or both connected.
Feature
- Buck-boost NVDC charger for 1-, 2-, 3-, or 4-cell Li-ion batteries
- Input voltage range 3.2V to 23.4V (no dead zone)
- System output voltage 2.4V to 18.304V
- Autonomous charging option (automatic end of charging)
- System power monitor PSYS output, IMVP compliant
- Up to 1MHz switching frequency
- Adapter current and battery current monitor (AMON/BMON)
- PROCHOT# open-drain output, IMVP compliant
- Allows trickle charging of depleted battery
- Ideal diode control in Turbo mode
- Reverse buck, boost, and buck-boost operation from battery
- Two-level adapter current limit available
- Battery Ship mode option
- SMBus and auto-increment I2C compatible
- 4x4 32 Ld TQFN package
APPLICATIONS
- 1 to 4-cell tablet, Ultrabook, notebook, power bank, and any USB-C interface portable device requiring batteries
