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SG6521SZ

Description
IC SUPERVISOR PC PS 16-SOIC
Categorysemiconductor    Power management   
File Size987KB,12 Pages
ManufacturerON Semiconductor
Websitehttp://www.onsemi.cn
Environmental Compliance
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SG6521SZ Overview

IC SUPERVISOR PC PS 16-SOIC

SG6521SZ Parametric

Parameter NameAttribute value
typemulti-pressure monitor
Monitored voltage number4
outputOpen drain or open collector
reset-
reset timeout-
Voltage - Threshold3.3V,5V,12V,12V
Operating temperature-40°C ~ 85°C(TA)
Installation typesurface mount
Package/casing16-SOIC (0.154", 3.90mm wide)
Supplier device packaging16-SOP
SG6521 — PC Power Supply Supervisors
September 2008
SG6521 — PC Power Supply Supervisors
Features
Two 12V Sense Input Pins: VS12 and VS12B
Over-Voltage Protection (OVP) for 3.3V, 5V, and
two 12V
Over-Current Protection (OCP) for 3.3V, 5V, and
two 12V
Under-Voltage Protection (UVP) for 3.3V, 5V, and
two 12V
Open-Drain Output for PGO and FPO Pins
300ms Power-Good Delay
2.8ms PSON Control to FPO Turn-off Delay
48ms PSON Control Delay
No Lock-up During the Fast AC Power On/Off
Wide Supply Voltage Range: 4V to 15V
Over-Temperature Protection (OTP)
Additional Protection Input (Pext)
Description
The SG6521 is designed to provide the supply voltage,
current supervisor, remote on/off (PSON), power good
(PGO) indicator, and fault protection (FPO) functions for
switching power systems.
For supervisory functions, it provides the over-voltage
protection (OVP) for 3.3V, 5V, and two 12V; over-
current protection (OCP) for 3.3V, 5V, and two 12V;
under-voltage protection (UVP) for 3.3V, 5V, and two
12V. When 3.3V, 5V, or 12V voltage decreases to 2.3V,
3.5V, and 9V, respectively, the under-voltage protection
function is enabled. FPO is set HIGH to turn off the
PWM controller IC. The voltage difference across
external current shunt is used for OCP functions. An
external resistor can be used to adjust protection
threshold. An additional protection input pin provides
the flexibility for designing protection circuits.
The power supply is turned on after a 48ms delay when
PSON signal is set from HIGH to LOW. To turn off the
power supply, the PSON signal is set from LOW to
HIGH with a delay of 48ms. The PGI circuitry provides a
power-down warning signal for PGO. When PGI input is
lower than the internal 1.25V reference voltage, PGO
signal is pulled LOW.
Applications
Switch-Mode Power Supplies with Active PFC
Servo System Power Supplies
PC-ATX Power Supplies
Ordering Information
Part
Number
SG6521DZ
SG6521SZ
Operating Temperature
Range
-40°C to +85°C
-40°C to +85°C
Eco
Status
RoHS
RoHS
Package
16-pin Dual In-Line Package (DIP)
16-pin Small Outline Package (SOP)
Packing
Method
Rail
Tape & Reel
For Fairchild’s definition of “green” Eco Status, please visit:
http://www.fairchildsemi.com/company/green/rohs_green.html.
© 2007 Fairchild Semiconductor Corporation
SG6521 • Rev. 1.0.0
www.fairchildsemi.com

SG6521SZ Related Products

SG6521SZ SG6521DZ
Description IC SUPERVISOR PC PS 16-SOIC IC SUPERVISOR PC PWR SUPP 16-DIP
type multi-pressure monitor multi-pressure monitor
Monitored voltage number 4 4
output Open drain or open collector Open drain or open collector
Voltage - Threshold 3.3V,5V,12V,12V 3.3V,5V,12V,12V
Operating temperature -40°C ~ 85°C(TA) -40°C ~ 85°C(TA)
Installation type surface mount Through hole
Package/casing 16-SOIC (0.154", 3.90mm wide) 16-DIP(0.300",7.62mm)
Supplier device packaging 16-SOP 16-DIP
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