SG6520DZ

SG6520DZ Datasheet

SG6520 is designed to provide the voltage, and current supervisor function, remote on/off PSON function,

Part	Datasheet
SG6520DZ	SG6520DZ (pdf)

Related Parts	Information
SG6520SZ	SG6520SZ

PDF Datasheet Preview
PC Power Supply Supervisors - 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 - 300mS turn on delay for 3.3V, 5V and two 12V - 2.8mS PSON control to FPO turn-off delay - 48mS PSON control delay - No lockup during the fast AC power on/off - Wide supply voltage range from 4.2V to 15V - Programmable over temperature protection OTP SG6520 is designed to provide the voltage, and current supervisor function, remote on/off PSON function, Product Specification SG6520 power good PGO indicator function, and fault protection FPO function for switching power systems. For supervisor function, 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 is decreasing to 2.3V, 3.5V and 9V respectively, the under voltage protection UVP function will be enabled. FPO will be set to 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. The power supply is turned on after 48mS delay time when PSON signal is set from high to low. To turn off power supply, PSON signal is set from low to high with the delay time 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. System General Corp. Version IAO33.0041.B0 September 28, 2007 PC Power Supply Supervisors MARKING INFORMATION SG6520TP T D = DIP, S = SOP P Z = Lead Free Null=regular package Wafer Lot Y Year WW Week V Assembly Location Product Specification SG6520 PIN CONFIGURATION ORDERING INFORMATION Pb-Free Package Type SG6520DZ 16 pin DIP Plastic SG6520SZ Preliminary 16 pin SOP Plastic PIN DESCRIPTIONS Pin No. Pin Name Type Analog input Supply Logic output PSON Logic input IS12 Analog input Analog input IS12B VS12B IS33 VS12 VS33 Analog input Analog input Analog input Analog input Analog input Analog input Analog input Power Good Input. For ATX SMPS, it detects AC line voltage through the main transformer. Ground. Fault Protection Output. Output signal to control the primary PWM IC through an opto-coupler. When FPO is low, the PWM IC is enabled. Remote On/Off logic input from CPU or main-board. The power supply will be turned on/off after 48mS delay. 12V over current protection sense input. For typical application, this pin is connected to the positive end of a current shunt through one resistor. When the voltage on IS12 is higher than that of VS12 by 5mV, OCP will be enabled. Reference setting. One external resistor Ri connected between RI and GND pin will determine a reference current, Iref = 1.25/Ri, for OCP programming. 12V over current protection sense input. For typical application, this pin is connected to the positive end of a current shunt through one resistor. When the voltage on IS12 is higher than that of VS12 by 5mV, OCP will be enabled. Second 12V over/under-voltage control sense input. For over-temperature protection. 5V over current protection sense input. 3.3V over current protection sense input. 12V over/under-voltage control sense input. 3.3V over/under-voltage control sense input. Analog input Supply Logic output 5V over/under-voltage control sense input. Supply voltage. 4.2V ~ 15V. For ATX SMPS, it is connected to 5V-standby and 12V through diodes respectively. Power good logic output, 0 or 1 open-drain . Power good=1 means that the power supply is good for operation. The power good delay is 300mS. System General Corp. Version IAO33.0041.B0 September 28, 2007 PC Power Supply Supervisors BLOCK DIAGRAM Product Specification SG6520 System General Corp. Version IAO33.0041.B0 September 28, 2007 PC Power Supply Supervisors Product Specification SG6520 FUNCTION TABLE

PDF Datasheet Preview

PC Power Supply Supervisors
- 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 - 300mS turn on delay for 3.3V, 5V and two 12V - 2.8mS PSON control to FPO turn-off delay - 48mS PSON control delay - No lockup during the fast AC power on/off - Wide supply voltage range from 4.2V to 15V - Programmable over temperature protection OTP

SG6520 is designed to provide the voltage, and current supervisor function, remote on/off PSON function,

Product Specification

SG6520
power good PGO indicator function, and fault protection FPO function for switching power systems.

For supervisor function, 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 is decreasing to 2.3V, 3.5V and 9V respectively, the under voltage protection UVP function will be enabled. FPO will be set to 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.

The power supply is turned on after 48mS delay time when PSON signal is set from high to low. To turn off power supply, PSON signal is set from low to high with the delay time 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.

System General Corp. Version IAO33.0041.B0

September 28, 2007

PC Power Supply Supervisors

MARKING INFORMATION

SG6520TP

T D = DIP, S = SOP P Z = Lead Free

Null=regular package

Wafer Lot Y Year WW Week V Assembly Location

Product Specification

SG6520 PIN CONFIGURATION
ORDERING INFORMATION

Pb-Free Package Type

SG6520DZ
16 pin DIP Plastic

SG6520SZ Preliminary
16 pin SOP Plastic

PIN DESCRIPTIONS

Pin No. Pin Name Type

Analog input

Supply

Logic output

PSON

Logic input

IS12

Analog input

Analog input

IS12B

VS12B

IS33

VS12

VS33

Analog input

Analog input Analog input Analog input Analog input Analog input

Analog input

Power Good Input. For ATX SMPS, it detects AC line voltage through the main transformer. Ground. Fault Protection Output. Output signal to control the primary PWM IC through an opto-coupler. When FPO is low, the PWM IC is enabled. Remote On/Off logic input from CPU or main-board. The power supply will be turned on/off after 48mS delay. 12V over current protection sense input. For typical application, this pin is connected to the positive end of a current shunt through one resistor. When the voltage on IS12 is higher than that of VS12 by 5mV, OCP will be enabled. Reference setting. One external resistor Ri connected between RI and GND pin will determine a reference current, Iref = 1.25/Ri, for OCP programming. 12V over current protection sense input. For typical application, this pin is connected to the positive end of a current shunt through one resistor. When the voltage on IS12 is higher than that of VS12 by 5mV, OCP will be enabled. Second 12V over/under-voltage control sense input. For over-temperature protection. 5V over current protection sense input. 3.3V over current protection sense input. 12V over/under-voltage control sense input.
3.3V over/under-voltage control sense input.

Analog input Supply Logic output
5V over/under-voltage control sense input.

Supply voltage. 4.2V ~ 15V. For ATX SMPS, it is connected to 5V-standby and 12V through diodes respectively. Power good logic output, 0 or 1 open-drain . Power good=1 means that the power supply is good for operation. The power good delay is 300mS.

System General Corp. Version IAO33.0041.B0

September 28, 2007

PC Power Supply Supervisors

BLOCK DIAGRAM

Product Specification

SG6520

System General Corp. Version IAO33.0041.B0

September 28, 2007

PC Power Supply Supervisors

Product Specification

SG6520

FUNCTION TABLE

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Datasheet ID: SG6520DZ 634735