S-8424A

• Low power consumption Normal operation: 15 A Max. (V_IN = 6 V) Backup: 2.1 A Max.
• Voltage regulator Output voltage tolerance : ±2 % Output voltage: Independently selectable in 0.1 V steps in the range of 2.3 V to 5.4 V
• Three built-in voltage detectors (CS, PREEND , RESET ) Detection voltage precision: ±2 % Detection voltage: Selectable in 0.1 V steps in the range of 2.4 V to 5.3 V (CS voltage detector) Selectable in 0.1 V steps in the range of 1.7 V to 3.4 V (PREEND , RESET voltage detector)
• Switching circuit for primary power supply and backup power supply configurable on one chip
• Efficient use of backup power supply possible
• Special sequence Backup voltage is not output when the primary power supply voltage does not reach the initial voltage at which the switch unit operates.
• Lead-free products

Caution The absolute maximum ratings are rated values exceeding which the product could suffer physical damage. These values must therefore not be exceeded under any conditions.

The S-8424A Series is a CMOS IC designed for use in the switching circuits of primary and backup power supplies on a single chip. It consists of two voltage regulators, three voltage detectors, a power supply switch and its controller, as well as other functions.

In addition to the switching function between the primary and backup power supply, the S-8424A Series can provide the micro controllers with three types of voltage detection output signals corresponding to the power supply voltage.

Moreover adopting a special sequence for switch control enables the effective use of the backup power supply, making this S-8424A IC ideal for configuring a backup system.