Hi:
关于TPS56837H,我这边有个问题想请教下。我使用该芯片,24V转12V输出,在进行欠压测试时,规格书中低于3.5V就会关断输入,即不会有输出电压。我这边4A负载和空载均有测试,EN使能脚达到2V以下,才会关断,想请教下为什么和规格书3.5V差距这么大?
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感谢您对TI产品的关注!
关于你的咨询, 应该不会相差那么大, EN pin接分压电阻了吗?
详情请参考datasheet中的下面章节。
6.3.5 Enable and Adjusting Undervoltage Lockout
www.ti.com/.../tps56837h.pdf