AP22653

Description

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, overtemperature, and short-circuit protection, as well as controlled rise time and undervoltage lockout functionality. A 6ms deglitch capability on the open-drain flag output prevents false overcurrent 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 the SOT26 (Type A1) and W-DFN2020-6 (Type A1) packages.

Feature(s)

• Up to 2.1A Maximum Load Current
• Accurate Adjustable Current Limit, 125mA to 2665mA
• ±7% Accurate Adjustable Current Limit, 1.735A with R_LIM = 15kΩ
• Constant-Current (AP22652/53) During Overcurrent
• Output Latch-Off (AP22652A/53A) at Overcurrent
• 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
• Overcurrent, 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: -40ºC 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 (Notes 1 & 2)
• Halogen and Antimony Free. “Green” Device (Note 3)
• An automotive-compliant part is available under separate datasheet (AP22653Q)

Application(s)

• Set-top boxes
• LCD TVs & monitors
• Residential gateways
• Laptops, desktops, servers, e-readers, printers, docking stations, HUBs