Product Highlights
• Fully supports Quick Charge 2.0 specification
• Class A: 5 V, 9 V, and 12 V output voltage
• Class B: 5 V, 9 V, 12 V, and 20 V output voltage
• USB battery charging specification revision 1.2 compatible
• Automatic USB DCP shorting D+ to D- line
• Default 5 V mode operation
• Supports TOPSwitch and TinySwitch
• Very low power consumption
• Below 1 mW at 5 V output
• Fail safe operation
• Adjacent pin-to-pin short-circuit fault
• Open circuit pin fault
Typical Applications
• Battery chargers for smart phones, tablets, netbooks, digital
cameras, and bluetooth accessories
• USB power output ports
Description
CHY100 is a low-cost USB high-voltage dedicated charging port
(HVDCP) interface IC for the Quick Charge 2.0 specification. It
incorporates all necessary functions to add Quick Charge 2.0 capability
to Power Integrations’ switcher ICs such as TOPSwitch or TinySwitch and
other solutions employing traditional feedback schemes.
CHY100 supports the full output voltage range of either Class A or
Class B. Optionally Class B can be inhibited for protecting the battery
charger from accidental damage.
CHY100 automatically detects whether a connected Powered Device
(PD) is Quick Charge 2.0 capable before enabling output voltage
adjustment. If a PD not compliant to Quick Charge 2.0 is detected the
CHY100 disables output voltage adjustment to ensure safe operation
with legacy 5 V only USB PDs.