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The AP22653Q is single-channel, precision-adjustable, current-limited switch optimized for applications that require precision current-limiting, or to provide up to 1.5A of continuous load current during heavy loads/short circuits. This device offers a programmable current-limit threshold between 125mA and 1735mA (typ) via an external resistor. Current-limit accuracy ±7% can be achieved at high current-limit settings. The rise and fall times are controlled to minimize current surges during turn on/off.
The device has fast short-circuit response time for improved overall system robustness. The device provides 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 AP22653Q limits the output current to a safe level when the output current exceeds current-limit threshold. The device is available in the SOT26 (Type A1) package.
Up to 1.5A Maximum Load Current
Accurate Adjustable Current-Limit, 125mA to 1735mA
±7% Accurate Adjustable Current-Limit, 1.735A with RLIM = 15kΩ
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, 750V CDM
Enable Active High
SOT26 Package: Available in “Green” Molding Compound (No Br,Sb)
16kV ESD Protection per IEC61000-4-2 (With External Capacitance)
IEC60950-1 CB Scheme Certified
AEC-Q100 Qualified With the Following Results:
Device Temperature Grade 1: –40°C to 125°C Ambient Operating Temperature Range