APW1681 3-Channel Power Supply Supervisor Features General Description • The APW1681 is designed to minimize the external components of personal-computer switching power supply systems. It provides protection circuits, power good indicator, fault protection output FPO and PSON control. Over Voltage Protection and Lock Out for ! 3.3 V, 5 V, and 12 V • ! Under Voltage Protection and Lock Out for 3.3 V and 5 V • Fault Protection Output with Open Drain ! Output Stage • ! OVP (over voltage protection) monitors 3.3V, 5 V, and 12 V (12 V OV detects via V CC terminal). UVP (under voltage protection) monitors 3.3V and 5V. When an OV or UV condition is detected, the PGO (power good output) is set to low and FPO is latched to high. PSON from low to high resets the protection latch. There is a 2.36ms turn-off delay from PSON to FPO . There is no delay during turn on. Open Drain Power Good Output Signal for Power Good Input, 3.3 V and 5 V • • 300 ms Power Good Delay • 38 ms PSON Control Debounce 2.36 ms PSON Control to FPO Turn-Off Delay Power good feature monitors PGI, 3.3V and 5V under voltages, and issues a power good signal when they are ready. • 75 ms Delay for 3.3V and 5V Under Voltage ! Protection • • • 73 µs Width Noise Deglitches Wide Power Supply Voltage Range from 4 V to 15 V Pin Description Intelligent Under Voltage Protection to Pre vent Instantaneously AC Power Black Out Applications • PC Switching Power Supply PGI 1 8 PGO GND 2 7 VCC FPO 3 6 VS5 PSON 4 5 VS33 Ordering Information APW1681 Package Code J : DIP - 8 Temp. Range C : 0 to 70 °C Handling Code TU : Tube Handling Code Temp. Range Package Code ANPEC reserves the right to make changes to improve reliability or manufacturability without notice, and advise customers to obtain the latest version of relevant information to verify before placing orders. Copyright ANPEC Electronics Corp. Rev. A.2 - Feb., 2001 1 www.anpec.com.tw APW1681 Block Diagram VCC 12 OV + VREF POR Reset Bandgap Reference Vreg VREF VDD=3.5V 1.192V RL=100kΩ R VS5 R VREF + 73µs Debounce 5 OV 73µs Debounce RL=100kΩ R 2.36 ms Delay EN VS33 RTT FPO R S Q VDD Reset Dominent Latch Reset 150µA 38ms Debounce VREF PSON 3.3 OV + RL=100kΩ 3.3 UV VREF + 75ms Delay EN Counter R 5 UV VREF + VREF + R 73µs Debounce PGO 300ms EN Delay Counter GND PGI Absolute Maximum Ratings Symbol V CC VS5, VS33 FPO PSON PGI PGO TA T STG TL Parameter Supply Voltage 5V and 3.3V Input Voltage(Note 1) Fault Protection Output Voltage ON/O FF Control Input Voltage(Note 1) Power G ood Input Voltage(Note 1) Power G ood O utput Voltage(Note 1) Am bient Tem perature Range Storage Tem perature R ange Lead Temperature (Soldering, 10 second) Rating 16 8 16 8 8 8 0 to 70 -65 to +150 260 Unit V V V V V V °C °C °C Note 1: For a short period (<1 sec) over voltage test, these pins can withstand up to 12V. Copyright ANPEC Electronics Corp. Rev. A.2 - Feb., 2001 2 www.anpec.com.tw APW1681 Pin Function Description Terminal NO. I/O Terminal Function Description VS33 5 I 3.3 V over/under voltage protection input pin VS5 6 I 5 V over/under voltage protection input pin GND 2 FPO 3 O Inverted fault protection output, open drain output stage PGI 1 I Power good input signal pin PGO 8 O Power good output signal pin, open drain output stage PSON 4 I ON/OFF control input pin VCC 7 I Supply voltage/12 V over voltage protection input pin Name Ground Thermal Characteristics Symbol RTHJA Parameter Thermal Resistance from Junction to Ambient in Free Air Value Unit DIP-8 129 K/W Electrical Characteristics Symbol VCC=5V, TA=25°C ( unless otherwise noted) Parameter Test Conditions APW1681 Unit Min. Typ. Max. 3.7 3.9 4.1 Over Voltage Protection Over Voltage Threshold VS33 VS5 5.7 6.1 6.5 VCC 13.3 13.8 14.3 V ILKG Leakage Current ( FPO ) V( FPO )=5V 5 µA VOL Low Level Output Voltage ( FPO ) ISINK= 10mA 0.3 V ISINK= 30mA 0.7 VOH FPO Pin Pull High Voltage 15 V PGI and PGO Input Threshold Voltage (PGI) 1.14 1.19 1.24 V VS33 2.55 2.7 2.83 V VS5 4.1 4.3 4.5 Under Voltage Protection Delay Time (3.3V and 5V) 49 75 114 Under Voltage threshold Copyright ANPEC Electronics Corp. Rev. A.2 - Feb., 2001 3 ms www.anpec.com.tw APW1681 Electrical Characteristics (Cont.) Sym bol P a r a m e te r Te s t C o n d itio n s APW 1680 M in . ILK G L e a k a g e C u rre n t (P G O ) PG O =5V V OL L o w L e v e l O u tp u t V o lta g e (P G O ) S in k C u rre n t = 1 0 m A V OH PSON Ty p . P G O P in P u ll H ig h V o lta g e U n it M ax. 5 µA 0 .4 V 7 V C o n tr o l In p u t P u ll-U p C u rre n t µA 150 PSON = 0 V H ig h - L e v e l In p u t V o lta g e 2 .4 V L o w -L e v e l In p u t V o lta g e 1 .2 V To ta l D e v ic e V CC S u p p ly V o lta g e IC C S u p p ly C u rre n t 4 PSON = 5 V 15 V 1 mA 450 ms ms S w itc h in g C h a r a c te r is tic s td1 D e la y tim e (P G I to P G O ) tb 200 300 D e b o u n c e T im e ( PSON ) 24 38 57 T dg N o is e D e g litc h T im e 47 73 11 0 µs td2 D e la y T im e ( PSON to FPO ) tb+ 4 ms t b + 1 .1 t b + 2 .3 6 Typical Application Circuit 5 VSB PGI PGO APW1681 12 V 1 2 3 PSON Copyright ANPEC Electronics Corp. Rev. A.2 - Feb., 2001 PGI PGO GND VCC FPO VS5 4 PSON VS33 4 8 0.5V Drop 7 5 VSB 6 5V 5 3.3 V www.anpec.com.tw APW1681 Timing Chart VDD Reset R PSON S Q FPO PGI 3.3V 5V 12V PGO td1 td1 td1 PG Off Delay Protection Occur tb tb td2 AC OFF PSON OFF Copyright ANPEC Electronics Corp. Rev. A.2 - Feb., 2001 5 PSON ON www.anpec.com.tw APW1681 Packaging Information PDIP-8 pin ( Reference JEDEC Registration MS-001) D E1 E 1 1 A2 A E3 A1 L e2 e1 e3 Dim Millimeters Min. A A1 A2 D e1 e2 e3 E E1 E3 L φ1 Inches Max. 5.33 0.38 2.92 9.02 Min. 3.68 10.16 0.015 0.115 0.355 0.56 1.78 0.014 0.045 7.11 10.92 3.81 15° 0.240 2.54BSC 0.36 1.14 2.92 0° Copyright ANPEC Electronics Corp. Rev. A.2 - Feb., 2001 0.145 0.400 0.100BSC 7.62 BSC 6.10 Max. 0.210 0.022 0.070 0.300 BSC 0.115 0° 6 0.280 0.430 0.150 15° www.anpec.com.tw APW1681 Customer Service Anpec Electronics Corp. Head Office : 5F, No. 2 Li-Hsin Road, SBIP, Hsin-Chu, Taiwan, R.O.C. Tel : 886-3-5642000 Fax : 886-3-5642050 Taipei Branch : 7F, No. 137, Lane 235, Pac Chiao Rd., Hsin Tien City, Taipei Hsien, Taiwan, R. O. C. Tel : 886-2-89191368 Fax : 886-2-89191369 Copyright ANPEC Electronics Corp. Rev. A.2 - Feb., 2001 7 www.anpec.com.tw