Datasheet BM2P139TF, BM2P135TF, BM2P137TKF, BM2P129TF (Rohm) - 8
| Manufacturer | Rohm |
| Description | PWM type DC/DC converter IC Integrated Switching MOSFET for non-Isolated type |
| Pages / Page | 24 / 8 — BM2P139TF/BM2P135TF/BM2P137TKF/BM2P129TF. (3) Stop sequences. … |
| File Format / Size | PDF / 1.1 Mb |
| Document Language | English |
BM2P139TF/BM2P135TF/BM2P137TKF/BM2P129TF. (3) Stop sequences. SZ02201-0F1F0A200260-1-2. 17.Apr.2017.Rev.002
Model Line for this Datasheet
Text Version of Document
BM2P139TF/BM2P135TF/BM2P137TKF/BM2P129TF
Datasheet Datasheet
(3) Stop sequences
Stop sequences are shown in Figure 4.
AC VOLTAGE 0.0V DRAIN-GND VOUT-GND VUVLO1 VCHG2 VCC-GND_IC V V CHG1 UVLO2 OVER LOAD NORMAL LOAD 128ms IOUT SWITCHING A B C D E F Figure 4. Stop sequences timing chart A: Normal operation B: The input AC voltage is stopped. The DRAIN voltage starts to drop. C: If the DRAIN voltage drops below a certain voltage, it becomes MAX duty and over load protection operates. D: If the output voltage drops, the VCC pin voltage, too. And recharge operation is started. E: The recharge operation is stopped. F: If the DRAIN voltage drops below a certain voltage, the VCC pin voltage lowers below UVLO in order to stop recharge operation. www.rohm.com © 2017 ROHM Co., Ltd. All rights reserved. 8/21
SZ02201-0F1F0A200260-1-2
TSZ22111・15・001
17.Apr.2017.Rev.002
Document Outline BM2P135TF_BM2P137TKF_BM2P139TF_BM2P129PF(E)_verB Notice-PGA-E
Datasheet Datasheet
(3) Stop sequences
Stop sequences are shown in Figure 4.
AC VOLTAGE 0.0V DRAIN-GND VOUT-GND VUVLO1 VCHG2 VCC-GND_IC V V CHG1 UVLO2 OVER LOAD NORMAL LOAD 128ms IOUT SWITCHING A B C D E F Figure 4. Stop sequences timing chart A: Normal operation B: The input AC voltage is stopped. The DRAIN voltage starts to drop. C: If the DRAIN voltage drops below a certain voltage, it becomes MAX duty and over load protection operates. D: If the output voltage drops, the VCC pin voltage, too. And recharge operation is started. E: The recharge operation is stopped. F: If the DRAIN voltage drops below a certain voltage, the VCC pin voltage lowers below UVLO in order to stop recharge operation. www.rohm.com © 2017 ROHM Co., Ltd. All rights reserved. 8/21
SZ02201-0F1F0A200260-1-2
TSZ22111・15・001
17.Apr.2017.Rev.002
Document Outline BM2P135TF_BM2P137TKF_BM2P139TF_BM2P129PF(E)_verB Notice-PGA-E
