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| UTC 3511 PC POWER SUPPLY SUPERVISORS DESCRIPTION The UTC 3511 provides protection circuits, power good output (PGO), fault protection latch (FPL_N), and protection detector function (PDON_N) control. It can minimize external components of switching power supply systems in personal computer. The Over Voltage Detector (OVD) monitors 3.3V, 5V, 12V input voltage level. The Under Voltage Detector (UVD) monitors 3.3V, 5V input voltage level. When OVD or UVD detect the fault voltage level, the FPL_N is latched HIGH and PGO goes LOW. The latch can be reset by PDON_N going HIGH. There is 2.4ms delay time for PDON_N turning off FPL_N. When OVD and UVD detect the right voltage level, the power good output (PGO) will be issue. CMOS IC SOP-8 DIP-8 FEATURES * The Over Voltage Detector (OVD) monitors 3.3V, 5V, 12V input voltage level. * The Under Voltage Detector (UVD) monitors 3.3V, 5V input voltage level. * Both of the power good output (PGO) and the fault protection latch (FPL_N) are Open Drain Output. * 75 ms time delay for UVD. * 300 ms time delay for PGO. * 38 ms for PDON_N input signal De-bounce. * 73 us for internal signal De-glitches. * 2.4 ms time delay for PDON_N turn-off FPL_N. PIN CONFIGURATION PGI GND FPL_N PDON_N 1 2 3 4 8 7 6 5 PGO VDD V5 V33 UTC UNISONIC TECHNOLOGIES CO., LTD. QW-R502-015,B UTC 3511 PIN DESCRIPTION PIN No. PIN NAME 1 PGI 2 3 4 5 6 7 8 GND FPL-N PDON-N V33 V5 VDD PGO CMOS IC TYPE I P O I I I I O Power good input pin Ground Fault protection latch output pin (open drain output) Protection detector function ON/OFF control input pin 3.3V input pin 5V input pin Supply voltage/12V input pin Power good output pin(open drain output) DESCRIPTION BLOCK DIAGRAM VDD 150uA 3.6V Power On Reset Vcc Low Voltage POR LVRST Clock Generator CLK PWR CLK CLK PWR RST PWR PDON_N 38ms debounce - 2.4ms CLR delay V33 UN + CLK RWR OV + V5 UN + CLR 75ms delay CLK RST R FPL_N OV + 73us debounce SQ VDD OV + VDD CLK RST 73us debounce CLK PGO PGI UN + CLR 300ms delay 1.2V ABSOLUTE MAXIMUM RATINGS PARAMETER Supply voltage Input Voltage Output Voltage PDON_N,V5,V33,PGI FPL_N PGO SYMBOL VDD Vin VOUT RATINGS -0.3 ~ 16 -0.3 ~ 7 -0.3 ~ 16 -0.3 ~ 7 -40 ~ 125 -55 ~ 150 UNIT V V V C C Operating temperature Topr Storage temperature Tstg Note:Stresses above those listed may cause permanent damage to the devices UTC UNISONIC TECHNOLOGIES CO., LTD. QW-R502-015,B UTC 3511 RECOMMENDED OPERATING CONDITIONS PARAMETER Supply Voltage Input Voltage Output Voltage Output Sink Current Supply Voltage Rising Time PDON_N,V5,V33,PGI FPL_N PGO FPL_N PGO CMOS IC SYMBOL VDD Vin VOUT Iosink Trs , VDD=5V) 1 MIN 3.8 TYP 12 MAX 15 7 15 7 30 10 UNIT V V V V mA mA ms ELECTRICAL CHARACTERISTICS (Ta=25 Over Voltage Detection PARAMETER Over voltage threshold SYMBOL TEST CONDITIONS MIN 3.7 5.7 12.8 TYP. 3.9 6.1 13.4 5 0.3 0.7 MAX 4.1 6.5 13.9 UNIT V uA V Leakage current (FPL_N) Low level output voltage (FPL_N) V33 V5 VDD/ V12 ILEAKAGE FPL_N=5V Isink=10mA VOL Isink=30mA PGI and PGO PARAMETER Under voltage threshold Input threshold voltage (PGI) Leakage current (PGO) Low level output voltage (PGO) SYMBOL V33 V5 TEST CONDITIONS MIN 2.55 4.1 1.16 TYP. 2.69 4.3 1.20 5 0.4 MAX 2.83 4.47 1.24 UNIT V uA V VPGI ILEAKAGE PGO=5V VOL Isink=10mA PDON_N PARAMETER Input pull-up current High-level input voltage Low-level input voltage SYMBOL Il VIH VIL TEST CONDITIONS PDON_N=0V MIN 2.4 TYP. 150 MAX UNIT uA V V 1.2 TOTAL DEVICE PARAMETER Supply current low voltage SYMBOL Icc VDD TEST CONDITIONS PDON_N=5V MIN TYP. 3 MAX 1 UNIT mA V UTC UNISONIC TECHNOLOGIES CO., LTD. QW-R502-015,B UTC 3511 SWITCHING CHARACTERISTICS, VDD=5V PARAMETER De-bounce time (PDON_N) Delay time (PGI to PGO) De-bounce time (PDON_N) De-glitch time PDON_N to FPL_N delay time Internal UVD delay time CMOS IC SYMBOL tdb1 tdelay tdb2 tg tdelay2 tdelay3 TEST CONDITIONS Ta=-40C ~ 125C MIN TYP. MAX UNIT ms ms ms us ms ms 32 38 61 200 300 490 32 38 61 63 73 120 Tdb2+2.0 Tdb2+2.4 Tdb2+3.8 65 75 122 FPL_N go low & every Time PGI>1.2V APPLICATION CIRCUIT 5V 5V 0.01uF PGI 1 2 3 470 PDON_N 4 PGI GND FPL_N PDON_N 3511 0.01uF PGO VDD V5 V33 8 7 6 5 5V 3.3V 12V VSB UTC UNISONIC TECHNOLOGIES CO., LTD. QW-R502-015,B UTC 3511 APPLICATION TIMMING CMOS IC 1. PGI (UNDER_VOLTAGE): PDON_N tdelay2 tdb1 tdelay1+tg PGO tdb2 FPL_N PGI PDON_N tdelay2 FPL_N tdb1 tdelay1+tg PGO tdelay1+tg tdb2 PGI UTC UNISONIC TECHNOLOGIES CO., LTD. QW-R502-015,B UTC 3511 2. V33,V5 (UNDER_VOLTAGE): CMOS IC PDON_N FPL_N tdelay2 tdb1 tdelay1+tg PGO tdb2 V33 / V5 PDON_N tdelay3=75mS tdelay3+tg tdelay2 tdb1 tdelay1+tg FPL_N tdb1 PGO tdb2 PGI V33 / V5 UTC UNISONIC TECHNOLOGIES CO., LTD. QW-R502-015,B UTC 3511 3. V33,V5,V12 (OVER_VOLTAGE): CMOS IC PDON_N tdelay2 FPL_N tdb1 tdelay1+tg PGO tdb2 V33 / V5 / V12 PDON_N tg FPL_N tdb1 tdb1 tdelay1+tg PGO tdb2 tdelay2 V33 / V5 / V12 UTC assumes no responsibility for equipment failures that result from using products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other parameters) listed in products specifications of any and all UTC products described or contained herein. UTC products are not designed for use in life support appliances, devices or systems where malfunction of these products can be reasonably expected to result in personal injury. Reproduction in whole or in part is prohibited without the prior written consent of the copyright owner. The information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and may be changed without notice. UTC UNISONIC TECHNOLOGIES CO., LTD. QW-R502-015,B |
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