8521-TC-SA GE step-down switch regulator controller

Description

The 8521-TC-SA GE is a step-down switching regulator manufactured by GE with the following features and application scenarios:

Description: 8521-TC-SA is a step-down switching regulator controller, also known as a servo controller or CPU control unit, with programmable and multi-function power supply features.
Technical specifications:
Power supply: AC 100-240V, 50/60Hz.
Power consumption: 5W.
Operating temperature range: -10℃ to 50℃.
Size: 96mm × 48mm × 80mm.
Weight: Approx. 200g (although some sources mention a weight of 2KG, which may be due to differences in packaging or different batches of products).
Functions and Applications: The controller can fully measure the voltage and internal resistance of a single battery, without battery discharge, and is easy to use. With active estimation of battery capacity, intelligent data processing, fault alarm and other functions. Suitable for a variety of scenarios that require accurate power control and battery status monitoring.
In addition, the 8521-TC-SA belongs to the S-8520/8521 series, a CMOS step-down switch regulator controller family with PWM control (S-8520 series) and PWM/PFM switch control (S-8521 series). The series has a reference voltage source, oscillation circuit, error amplifier and other components, and a soft start circuit to prevent overshoot during startup. The S-8521 series can automatically switch from PWM control to PFM control under light loads for increased efficiency.

Due to its high efficiency, low ripple power, excellent transient response and miniaturized design, the controller is ideal for use in portable power units and AC adapters, especially in applications with input voltages up to 16V