PDF《PS25A》

200 300

400 mS Short Circuit Delay Time (Td2)

49 75

100 mS PGO to FPO/ Delay Time (Td3)

2 4

6 mS Under Voltage Delay Time (Td4) 2.4

3 3.6 mS Over Current Delay Time (Td5)

13 20

27 mS Over Voltage Delay Time (Td6)

9 14

19 uS Pext Delay Time (Td7) 2.4

3 3.6 mS PSON/ De-bounce Time (Tb1)

24 38

52 mS PGO Noise De-glitch Time (Tb2)

47 73

100 uS 3-Channel Secondary Monitoring IC Version:A.005 Page

7 未经授权而迳予重制、复制、使用或公开本文件,?为人得被追究侵权之相关民刑事责任 Unauthorized reproduction, duplication, use or disclosure of this document will be deemed as infringement. PS25A Application Typical

3 rails SPS

14 13

12 11

10 9

8 1

2 3

4 5

6 7 PGI PSON/ RI IS12B VS12B IS12A FPO/ GND PGO PEXT VS12A Vcc R R R I R P GI-2 C P GI-2 2K +12VSB PGO PSON +12V SB S.P.S. Secondary Side RS 12B +12VB Output +12VBCoil 12A +12VA Output +12VACoil RS R PGO 4.7K C PGO R OC 12B 0.1 uF C PGI-1 R PGI-1 C by VDET 0.1 uF C 12A-2 0.1 uF C 12B -2 0.1 uF C 12A -1 C 12B-

1 OC12A Pext 0.1 uF C P S O 0.1 uF N 12C +12VC Output +12VCCoil S IS12C VS12C R R OC12C 0.1 uF C 12C -1 0.1 uF C 12C-2 Notes: 1. Zener diode or resistor or both of them can be used in component X. 2. The bypass capacitor Cby suggests to be 0.1uF~ 10uF and layout nearby pin VCC. 3. The recommend sense values of RS12A, RS12B are ≥ 0.002Ω. 4. Over-Current Protection design example: (1) A Iref μ

20 = , ( ) Ω = = = K I V R RI RI I

5 .

62 20

25 .

1 μ (2) RS5=0.002Ω , ref OC V V I R I V * * = * = Δ +

8 002 .

0 5

5 5 (3) If 12V OCP trip point is 20A, ( ) Ω = * * =

250 20

8 20

002 .

0 5 μ OC R 3-Channel Secondary Monitoring IC Version:A.005 Page

8 未经授权而迳予重制、复制、使用或公开本文件,?为人得被追究侵权之相关民刑事责任 Unauthorized reproduction, duplication, use or disclosure of this document will be deemed as infringement. PS25A Package Specification D E1 E b1 A1 e A S A2 θ° 0.0 0.5 1.0 inch

0 10

25 mm

15 5

20 ( 14-pin DIP ) L Seating Plane b EB Dimension in mm Symbol Dimension in inch NOTE A1 0.381 0.015 A2 3.175 3.302 3.429 0.125 0.13 0.135 b1 0.400 0.480 0.560 0.015 0.019 D 18.669 19.495 20.320 0.735 0.768 0.800 E1 6.223 6.812 7.400 0.245 0.268 0.291 e 2.290 2.540 2.790 0.090 0.100 0.110 L 2.540 3.175 3.810 0.100 0.125 0.150 S 2.390 0.094 A 5.334 0.210 E 7.366 7.620 7.874 0.290 0.300 0.310 EB 8.509 9.017 9.525 0.335 0.355 0.375 b 1.300 1.500 1.700 0.051 0.059 0.067 θ°

0 7

15 0

7 15 Min Normal Max Min Normal Max 3-Channel Second........