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参数资料
| 型号： | L6598D013TR |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 稳压器 |
| 英文描述： | SWITCHING CONTROLLER, 400 kHz SWITCHING FREQ-MAX, PDSO16 |
| 封装： | SO-16 |
| 文件页数： | 7/24页 |
| 文件大小： | 359K |
| 代理商： | L6598D013TR |
L6598
Block diagram description
Doc ID 6554 Rev 7
15/24
5.5
Comparators
Two CMOS comparators are available to perform protection schemes.
Short pulses (≥ 200 ns) on comparators input are recognized. The EN1 input (active high),
has a threshold of 0.6 V (typical value) forces the device in a latched shut down state (e.g.
LVG low, HVG low, oscillator stopped), as in the under voltage conditions. Normal operating
conditions are resumed after a power-off power-on sequence. The EN2 input (active high),
with a threshold of 1.2 V (typical value) restarts a Soft Start sequence (see timing
diagrams). In addition the EN2 comparator, when activated, removes a latched shutdown
caused by EN1.
Figure 14.
Switching time waveform definitions
Figure 15.
Dead time and duty cycle waveform definition
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