3-Channel Power Supply Supervisor Over Voltage Protection Lock

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3-Channel Power Supply Supervisor Over Voltage Protection Lock

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APW1683
3-Channel Power Supply Supervisor
Over Voltage Protection Lock
General Description
APW1683 designed minimize external components personal-computer switching power supply systems. provides protection circuits, power good indicator, fault protection output PSON control. (over voltage protection) monitors 3.3V, detects terminal). (under voltage protection) monitors 3.3V When condition detected, (power good output) latched high. PSON from high resets protection latch. There 2.3ms turn-off delay from PSON There delay during turn Power good feature monitors PGI, 3.3V under voltages, issues power good signal when they ready.
Under Voltage Protection Lock Fault Protection Output with Open Drain Output Stage Open Drain Power Good Output Signal Power Good Input, Power Good Delay PSON Control Turn-Off Delay
PSON Control Debounce
Delay 3.3V Under Voltage Protection Width Noise Deglitches Wide Power Supply Voltage Range from Intelligent Under Voltage Protection vent Instantaneously Power Black
Description
VS33
Applications
Switching Power Supply
PSON
Ordering Information
APW1683
Handling Code Temp. Range Package Code Package Code Temp. Range Handling Code Tube
ANPEC reserves right make changes improve reliability manufacturability without notice, advise customers obtain latest version relevant information verify before placing orders. Copyright ANPEC Electronics Corp. Rev. Aug., 2001 www.anpec.com.tw
APW1683
Block Diagram
VREF Reset Vreg VDD=3.5V Bandgap Reference VREF 1.192V
RL=100k
73µs Debounce 73µs Debounce Reset Dominent Latch
VREF
RL=100k VS33
Reset 38ms Debounce PSON
Delay
VREF
75ms Delay Counter
RL=100k VREF
300ms Delay Counter
VREF
73µs Debounce
1.15V 0.95V
PGI1
PGI2 150µs Debounce 4.8ms delay
Absolute Maximum Ratings
VS5, VS33 Param eter Supply Voltage 3.3V Input Voltage(Note Fault Protection utput Voltage Control Input Voltage(Note Power Input Voltage(Note Power utput Voltage(Note bient perature Range Storage perature ange Lead perature (Soldering, second) Rating +150 Unit
Note short period sec) over voltage test, these pins withstand 12V.
Copyright ANPEC Electronics Corp. Rev. Aug., 2001
www.anpec.com.tw
APW1683
Function Description
Terminal Name VS33 PSON over/under voltage protection input over/under voltage protection input Ground Inverted fault protection output, open drain output stage Power good input signal Power good output signal pin, open drain output stage ON/OFF control input Supply voltage/12 over voltage protection input Terminal Function Description
Function Table
<0.95V <0.95V <0.95V 0.95V<PGI<1.15V 0.95V<PGI<1.15V 0.95V<PGI<1.15V PGI>1.15V PGI>1.15V PGI>1.15V
PSON
Condition
Condition 3.3V,
don't care means: fault latched means: fault latched means: fault means: fault
Thermal Characteristics
Symbol RTHJA Parameter Thermal Resistance from Junction Ambient Free DIP-8 Value Unit
Copyright ANPEC Electronics Corp. Rev. Aug., 2001
www.anpec.com.tw
APW1683
Electrical Characteristics
Symbol Parameter Test Conditions Min. Over Voltage Protection Over Voltage Threshold VS33 ILKG Leakage Current Level Output Voltage Pull High Voltage Input Threshold Voltage (PGI) PGI1 PGI2 Under Voltage threshold VS33 Under Voltage Protection Delay Time (3.3V ILKG Leakage Current (PGO) Level Output Voltage (PGO) Pull High Voltage Input Pull-Up Current High-Level Input Voltage Low-Level Input Voltage Total Device Supply Voltage Supply Current Delay time (PGI PGO) Debounce Time PSON Noise Deglitch Time Delay Time PSON PSON tb+4 PSON PGO=5V Sink Current 10mA 1.15 0.95 )=5V ISINK= 10mA ISINK= 30mA 13.2 13.8 14.4 APW1683 Typ. Max. Unit
PSON Control
Switching Characteristics
tb+1.1 tb+2.3
Copyright ANPEC Electronics Corp. Rev. Aug., 2001
www.anpec.com.tw
APW1683
Typical Application Circuit
APW1683 0.5V Drop
PSON
PSON
VS33
Custormer Service
Anpec Electronics Corp. Head Office Li-Hsin Road, SBIP, Hsin-Chu, Taiwan, R.O.C. 886-3-5642000 886-3-5642050 Taipei Branch 137, Lane 235, Chiao Rd., Hsin Tien City, Taipei Hsien, Taiwan, 886-2-89191368 886-2-89191369
Copyright ANPEC Electronics Corp. Rev. Aug., 2001
www.anpec.com.tw
APW1683
Timing Chart
Reset
PSON
3.3V
Protection Occur
Delay
PSON PSON
Copyright ANPEC Electronics Corp. Rev. Aug., 2001
www.anpec.com.tw
APW1683
Packaging Information
PDIP-8pin (Reference JEDEC Registration MS-001)
Min.
Inche
Copyright ANPEC Electronics Corp. Rev. Aug., 2001
www.anpec.com.tw

3-Channel Power Supply Supervisor Over Voltage Protection Lock

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