AP22652W6-7

The AP22652, AP22653, AP22652A and AP22653A are single channel precision adjustable current-limited switches optimized for applications that require precision current limiting, or to provide up to 2.1A of continuous load current during heavy loads/short circuits. These devices offer a programmable current-limit threshold between 125mA and 2665mA (typ) via an external resistor. Current limit accuracy ±10% can be achieved at high current-limit settings. The rise and fall times are controlled to minimize current surges during turn on/off. The devices have fast short-circuit response time for improved overall system robustness. They provide a complete protection solution for applications subject to heavy capacitive loads and the prospect of short circuit, offering reverse current blocking and limiting, overcurrent, over-temperature and short-circuit protection, as well as controlled rise time and under-voltage lockout functionality. A 6ms deglitch capability on the open-drain Flag output prevents false over-current reporting and does not require any external components. The AP22652 and AP22653 limit the output current to a safe level when the output current exceeds current-limit threshold. The AP22652A and AP22653A provide latch-off function during overcurrent or reverse-voltage conditions. All devices are available in SOT26 (Type A1) and W-DFN2020-6 (Type A1) packages.

Applications

• Set-Top Boxes
• LCD TVs & Monitors
• Residential Gateways
• Laptops, Desktops, Servers, e-Readers, Printers, Docking Stations, HUBs

Key features

• Up to 2.1A Maximum Load Current
• Accurate Adjustable Current Limit, 125mA to 2665mA
• ±7% Accurate Adjustable Current Limit, 1.735A with RLIM = 15kΩ
• Constant-Current (AP22652/53) During Over-Current
• Output Latch-Off (AP22652A/53A) at Over-Current
• Fast Short-Circuit Response Time: 5µs (typ)
• Reverse Current Blocking During Shutdown and Reverse Current Limiting During Enable
• Operating Range: 3.0V to 5.5V
• Built-In Soft-Start with 0.5ms Typical Rise Time
• Over-Current, Output Over-Voltage and Thermal Protection
• Fault Report (FAULT) with Blanking Time
• ESD Protection: 2kV HBM, 500V CDM
• 15kV ESD Protection per IEC61000-4-2 (With External Capacitance)
• UL Recognized, File Number E322375, Vol. 1
• IEC60950-1 CB Scheme Certified
• Active Low (AP22652/52A) or Active High (AP22653/53A) Enable
• Ambient Temperature Range: -40°C to +85°C
• SOT26 (Type A1) and W-DFN2020-6 (Type A1) Packages: Available in “Green” Molding Compound (No Br, Sb)
• Totally Lead-Free & Fully RoHS Compliant
• Halogen and Antimony Free. “Green” Device