E910.99
E910.99 PIR Light Controller with DC PWM Dimming and AC Relay Applications
GENERAL DESCRIPTION
The E910.99(M2011) integrated circuit combines all required functions for a single chip Passive Infra Red (PIR) light controller. The integrated circuit has an internal low dropout voltage regulator allowing for a wide range battery voltages or power supply configurations.
It is designed for load switching with a transistor or a relay in 3 wire AC and DC systems. A conventional PIR sensor connects directly to the PIR input. The pull-down resistor and DC decoupling circuitry are integrated on chip. The PIR signal is converted to a 15 bit digital value.
External potentiometers or resistors are used to set the operating parameters for sensitivity, on-time, brightness, fade, daylight sensor and environment temperature correction. The corresponding voltage levels are converted to digital values with a 4 bit resolution. All signal processing is performed digitally.
APPLICATIONS
- All types of battery operated lights using LED’s or incandescent globes
- Solar powered garden lights
- Low cost DIY automatic lights
- Extremely low standby power security lights
- Security applications
- Day-Night solid-state light switch
FEATURES
- Single chip solution, minimum external component count
- Low power consumption
- On-chip low dropout voltage regulator
- 4 Adjustable parameters
- Temperature compensation input
- Superior digital signal processing
- Very fast settle time on power up
DATASHEETS
APPLICATION CIRCUITS
- DC load switching, PWM or Relay
- Schematic for SMD evaluation board
- PCB description for SOIC evaluation board
- Low power AC load switching with Relay
- Description of extremely low power AC relay switch application
- Schematic for extremely low power AC relay switch application
- PCB description for SOIC evaluation board
- Applications with AC connection and relay load switching
- Schematic for low cost AC relay switch application
- Schematic with bridge rectifier AC relay switch application
- Solar Powered LED Based garden light application
- Description of solar application
- Schematic for solar powered garden light application
- PCB description for solar powered garden light evaluation board
- Other notes
- Temperature compensation explained
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