KA3505

Undervoltage Threshold :
Overvoltage Threshold :
Output Type :
Battery Backup Switching :
Power-Up Reset Delay (Typ) :
Manual Reset : Not Resettable
Maximum Operating Temperature : + 85 C
Number of Voltages Monitored : 1
Watchdog : No Watchdog
Packaging : Tube
Supply Current (Typ) : 10000 uA
Mounting Style : Through Hole
Monitored Voltage : 3.3 V, 5 V, 12 V
Maximum Power Dissipation : 1000 mW
Package / Case : DIP-16
Supply Voltage - Max : 30 V
Supply Voltage - Min : 15 V


Features:

• PC Power Supply Output Monitor Circuitry
• Few External Components
• Over Voltage Protection for 3.3V/5V/12V Output
• Under Voltage Protection for 3.3V/5V/12V Output With Delay Time
• Over Current Protection for 3.3V/5V/12V Output With Delay Time
• Fault Protection Output With Open Collector Output
• Power Supply on/off Delay Time Control (PSON)
• Power Good Signal Generator With Hysteresis
• Open Collector PG Output
• 300ms Power Good Delay
• Current Sense Setting Function With RI
• Latch Function Controlled by PSON and Protection Input
• 16-Pin Dual In-line Package

Pinout




Specifications

Parameter	Symbol	Value	Unit
Supply Voltage	VCC	15 ~ 30	V
Input Voltage	Vinput	30	V
FPO Voltage	VFPO	30	V
FPO Maximum Current	IFPO	20	mA
Operating Temperature	Topr	-20 ~ +85	°C
Storage Temperature Range	Tstg	-65 ~ +150	°C
Power Dissipation	PD	1	W

Description

The KA3505 is complete output supervisory circuitry intended for use in the secondary side of the switched mode power supply. It provides all the functions necessary to monitor and control the output of the power supply system. Power good signal generator, Remote on and off control, some precision protection features against over-voltage, under-voltage and over-current are implemented. It directly senses all the output rails for OVP and UVP without any external dividers. As for output control, Power Good Output (PGO) and Fault Protection Output (FPO) are also included. Utilizing a minimum number of external components, the KA3505 offers a simple and cost effective solution, greatly reducing PCB board space for power supply system.

Parameters:

Technical/Catalog Information	KA3505
Vendor	Fairchild Semiconductor
Category	Integrated Circuits (ICs)
Type	-
Voltage - Supply	15 V ~ 30 V
Current - Supply	5mA
Voltage - Input	-
Package / Case	16-DIP
Packaging	Tube
Applications	Power Supply, Supervisor
Operating Temperature	-25°C ~ 85°C
Lead Free Status	Lead Free
RoHS Status	RoHS Compliant
Other Names	KA3505 KA3505