Part Number: EST7502C
Function: POWER SUPPLY SUPERVISOR
Package: DIP, SOP 16 Pin Type
Manufacturer: EST
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Description
The EST7502C is designed with a pulse-width-modulation control circuit and a complete power supervisor for use in the switched mode power supply . It contains various functions, like under voltage protection (UVP), over voltage protection (OVP), power good output (PG) and ON/OFF control (REM). UVP(Under voltage protection) function is for +3.3V, +5V, +12V outputs. OVP(Over voltage protection) function is for +3.3V, +5V, +12V and PT is for extra protection input. PG(Power good signal) is a safe operation signal to inform the external parts. REM(Remote on/off) is used to control the SMPS on/off. The REM control signal has the on/off transferred debounce–time.
Features
1. 3-channel under voltage protection (UVP)
2. 3-channel over voltage protection (OVP)
3. 1-channel extra protection (PT)
4. 1-channel sense input to control the PG (SEN)
5. Remote on/off control function (REM)
6. Dual output for push-pull operation (OP1/OP2)
7. Soft start capability by external capacitor (SS)
8. VCC under voltage lockout
ORDERING INFORMATION :
REFERENCE APPLICATION CIRCUIT Shipping Tube Tube Top Marking EST.7502C EST.7502C www.esthome.com 1 2012.5.1 Rev.A1.5 datasheet EST7502C POWER SUPPLY SUPERVISOR WITH PWM CONTROLLER PIN Description Pin Symbol 1 V 2 2012.5.1 Rev.A1.5 datasheet EST7502C POWER SUPPLY SUPERVISOR WITH PWM CONTROLLER ELECTRICAL CHARACTERISTICS ( For VCC=5V and Tj=25 oC ) PARAMETER CONDITIONS Over Voltage Protection (OVP- V33,V5,V12,PT) OV33 Over voltage threshold OV5 OV12 PT Noise debounce time Tg.ov Under Volatge Protection (UVP- V33,V5,V12) UV33 Under voltage threshold UV5 UV12 Noise debounce time Tg.uv PG check under voltage delay time Td.uv Soft Start (SS) Sink current Source current Isink Isource RT=100 KΩ VCC Under Voltage Lockout (UVLO) Start-up voltage REM Input Pin (REM) High level input voltage Low level input voltage REM delay time VIH VIL Td.on/off Power Good (PG) PG delay time S […]
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