 |
|
| If you can't view the Datasheet, Please click here to try to view without PDF Reader . |
|
|
|
| If you can't view the Datasheet, Please click here to try to view without PDF Reader . |
|
|
| Datasheet File OCR Text: |
| APW1681 3-Channel Power Supply Supervisor Features Over Voltage Protection and Lock Out for ! 3.3 V, 5 V, and 12 V 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. 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. Power good feature monitors PGI, 3.3V and 5V under voltages, and issues a power good signal when they are ready. * * ! Under Voltage Protection and Lock Out for 3.3 V and 5 V Fault Protection Output with Open Drain ! Output Stage * * ! Open Drain Power Good Output Signal for Power Good Input, 3.3 V and 5 V 300 ms Power Good Delay 2.36 ms PSON Control to FPO Turn-Off Delay 38 ms PSON Control Debounce * * * * 75 ms Delay for 3.3V and 5V Under Voltage ! Protection * * * 73 s Width Noise Deglitches Wide Power Supply Voltage Range from 4 V to 15 V Intelligent Under Voltage Protection to Pre vent Instantaneously AC Power Black Out Pin Description Applications * PC Switching Power Supply PGI GND FPO PSON 1 2 3 4 8 7 6 5 PGO VCC VS5 VS33 Ordering Information APW1681 Handling Code Temp. Range Package Code Package Code J : DIP - 8 Temp. Range C : 0 to 70 C Handling Code TU : Tube 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 VREF 12 OV + RL=100k VS5 R POR Reset Vreg VDD=3.5V Bandgap Reference VREF 1.192V R 5 OV 73s Debounce 73s Debounce RTT R SQ FPO VREF + RL=100k VS33 R 2.36 ms Delay EN Reset Dominent Latch Reset 38ms Debounce VDD 150A PSON VREF 3.3 OV + 75ms Delay EN Counter R RL=100k 3.3 UV VREF + VREF 5 UV + R PGO 300ms EN Delay Counter GND 73s Debounce VREF 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 Name VS33 VS5 GND FPO PGI PGO PSON VCC 5 6 2 3 1 8 4 7 O I O I I I I 3.3 V over/under voltage protection input pin 5 V over/under voltage protection input pin Ground Inverted fault protection output, open drain output stage Power good input signal pin Power good output signal pin, open drain output stage ON/OFF control input pin Supply voltage/12 V over voltage protection input pin NO. I/O Terminal Function Description Thermal Characteristics Symbol RTHJA Parameter Thermal Resistance from Junction to Ambient in Free Air DIP-8 Value 129 Unit K/W Electrical Characteristics Symbol Parameter VCC=5V, TA=25C ( unless otherwise noted) Test Conditions APW1681 Min. Typ. 3.9 6.1 13.8 Max. 4.1 6.5 14.3 5 0.3 0.7 15 1.14 1.19 2.7 4.3 75 1.24 2.83 4.5 114 ms V V V A V V Unit Over Voltage Protection Over Voltage Threshold VS33 VS5 VCC ILKG VOL VOH Leakage Current ( FPO ) Low Level Output Voltage ( FPO ) FPO Pin Pull High Voltage Input Threshold Voltage (PGI) Under Voltage threshold VS33 VS5 Under Voltage Protection Delay Time (3.3V and 5V) V( FPO )=5V ISINK= 10mA ISINK= 30mA PGI and PGO 2.55 4.1 49 3.7 5.7 13.3 Copyright ANPEC Electronics Corp. Rev. A.2 - Feb., 2001 3 www.anpec.com.tw APW1681 Electrical Characteristics (Cont.) Sym bol ILK G V OL V OH PSON P a r a m e te r L e a k a g e C u rre n t (P G O ) L o w L e v e l O u tp u t V o lta g e (P G O ) P G O P in P u ll H ig h V o lta g e C o n tr o l In p u t P u ll-U p C u rre n t H ig h - L e v e l In p u t V o lta g e L o w -L e v e l In p u t V o lta g e To ta l D e v ic e V CC IC C td1 tb T dg td2 S u p p ly V o lta g e S u p p ly C u rre n t D e la y tim e (P G I to P G O ) D e b o u n c e T im e ( PSON ) N o is e D e g litc h T im e D e la y T im e ( PSON to FPO ) PSON = 5 V 200 24 47 300 38 73 4 15 1 450 57 11 0 tb+ 4 V mA ms ms s ms PSON = 0 V 2 .4 1 .2 150 A V V Te s t C o n d itio n s M in . PG O =5V S in k C u rre n t = 1 0 m A APW 1680 Ty p . M ax. 5 0 .4 7 U n it A V V S w itc h in g C h a r a c te r is tic s t b + 1 .1 t b + 2 .3 6 Typical Application Circuit 5 VSB PGI PGO APW1681 12 V 1 PGI PGO 8 0.5V Drop 5 VSB 2 GND VCC 7 3 FPO VS5 6 5V PSON 4 PSON VS33 5 3.3 V Copyright ANPEC Electronics Corp. Rev. A.2 - Feb., 2001 4 www.anpec.com.tw APW1681 Timing Chart VDD Reset R PSON S Q FPO PGI 3.3V 5V 12V PGO td1 td1 Protection Occur tb tb td2 td1 PG Off Delay AC OFF PSON OFF PSON ON Copyright ANPEC Electronics Corp. Rev. A.2 - Feb., 2001 5 www.anpec.com.tw APW1681 Packaging Information PDIP-8 pin ( Reference JEDEC Registration MS-001) D E1 1 E A L e2 e1 e3 A1 A2 1 E3 Dim Min. A A1 A2 D e1 e2 e3 E E1 E3 L 1 0.38 2.92 9.02 Millimeters Max. 5.33 3.68 10.16 2.54BSC 0.36 1.14 7.62 BSC 6.10 2.92 0 7.11 10.92 3.81 15 0.240 0.115 0 0.56 1.78 0.014 0.045 Min. 0.015 0.115 0.355 Inches Max. 0.210 0.145 0.400 0.100BSC 0.022 0.070 0.300 BSC 0.280 0.430 0.150 15 Copyright ANPEC Electronics Corp. Rev. A.2 - Feb., 2001 6 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 |
Price & Availability of APW1681
 |
|
|
|
|
All Rights Reserved © IC-ON-LINE 2003 - 2022 |
| [Add Bookmark] [Contact Us] [Link exchange] [Privacy policy] |
|
Mirror Sites : [www.datasheet.hk]
[www.maxim4u.com] [www.ic-on-line.cn]
[www.ic-on-line.com] [www.ic-on-line.net]
[www.alldatasheet.com.cn]
[www.gdcy.com]
[www.gdcy.net] |