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Описание:
This reference design is targeted at space-limited portable applications. The devices in the design operate from either a USB port or AC adapter. The solution has a single power output that charges the battery. A system load can be placed in parallel with the battery as long as the average system load does not keep the battery from charging fully during the 10 hour safety timer. The reference design is charged in three phases: conditioning, constant current, and constant voltage. In all charge phases, an internal control loop monitors the IC junction temperature and reduces the charge current if an internal temperature threshold is exceeded. The charger power stage and charge current sense functions are fully integrated. The board function has high-accuracy current and voltage regulation loops, charge status display, and charge termination. The pre-charge current and termination current threshold are programmed via an external resistor on the bq24040. The fast charge current value is also programmable via an external resistor.

Возможности:

# Series Cells: 1S Max Input Volts: 30V Max Charge Current: 1A Topology: Linear Mode

Документация:
  • Схемотехника
  • BOM
  • Тестирование
Описание:
This reference solution is designed to deliver up to 1000mA of continuous current to the battery output when programmed with a resistor on the ISET pin and is programmed at the factory for ~540mA. The USB current limit modes are selected by the ISET2 pin and limits current to a maximum of 500mA (logic high) or 100mA (float or high impedance). A low on the ISET2 pin programs the charge current using the ISET resistor.

Возможности:

# Series Cells: 1S Max Input Volts: 12V Max Charge Current: 1A Topology: Linear

Документация:
  • Схемотехника
  • BOM
  • Тестирование
Описание:
An inductive sensing (LDC)-based event counting design providing a robust and low-cost interface for speed measurement and event counting applications. The solution doesn't require magnets and reliably operates in environments with dirt, moisture or oil that usually pose challenges for alternate sensing technologies.
Возможности:

Highly reliable, contactless event counter using LDC technology No calibration required Measurement of >300 events / second No permanent magnets required; operates effectively even with magnetic or electrical enviromental interference

Возможность заказа
  • Заказать PCB
Документация:
  • Даташит
  • Схемотехника
  • BOM