LY3166

LY3166 is a single-chip LED driver control IC integrating touch key control with multiple mode selection support. The chip integrates a lithium battery charge management module, touch control module, LED function control module, and protection module, with a shutdown standby current of only 6uA. The charging current is 0.5A, the maximum output current is 1.5A, and applications exceeding 1.5A can be achieved via an external PMOS transistor. The chip offers multiple lighting function cycle modes, configurable by setting the S1, S2, and S3 pins high or to ground.

Applications

• Desk lamp
• Multi-function high-intensity flashlight
• Emergency light
• Outdoor lighting fixture

Key features

• Fully integrated single-chip control
• Touch key control
• Multiple cycle modes externally configurable
• 0.5A fixed charging current
• Built-in MOS max 1.5A drive current
• Single-LED or dual-LED indication support
• 2.4A output overcurrent protection
• Preset 4.2V battery full-charge voltage
• 2.6V battery over-discharge protection
• Overcurrent protection / short-circuit protection / thermal protection
• 0V charging support
• ESOP8 package