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As show in the data sheet VFLAG vs VIN (VCC), the FLAG voltage will be pulled low when VCC exceeds about 0.8V. The FLAG voltage reaches about 0.65v before true pulldown begins. The external power rail shall not be on if its enable threshold is above 0…
The behaviors of the device are unpredictable if EN stays asserted while VC ramps down below its minimum operating voltage.
For more LM388x FAQ click or type the tag in the search bar [FAQ] LM388x
Connecting the EN pin to VCC is not recommended. During power up, the EN voltage should be kept below the EN threshold until VCC rises above the minimum operating voltage. An undefined operation at the FLAG outputs can occur if EN is connected to VCC…
The test condition is that VCC=3.3 V and EN=3.3V. So it is an operating current when EN is high.
For more LM388x FAQ click or type the tag in the search bar [FAQ] LM388x
EN pin has a glitch free operation. The first timer will start counting at a rising threshold of EN, but will always reset if the EN pin is de-asserted before the first output FLAG is released. Please refer section 7.3.1 of https://www.ti.com/lit/ds/symlink…
I am currently using several Enpirion switching regulators and power modules in my designs. However, it was recently announced that Intel will be obsoleting this entire portfolio. Does TI have crosses for these Enpirion devices?
Part Number: BQ25883 The document below contains a checklist of components that are required and recommended for the BQ2588X 2-Cell Boost-Mode Charger family of devices.
BQ2588x Schematic Checklist
Components are labeled as
Required - Critical…
Part Number: LM3881
The minimum capacitance value for Cadj is 200pF and the maximum is 2uF.
For more LM388x FAQ click or type the tag in the search bar [FAQ] LM388x .
Other Parts Discussed in Thread: UCD90120A , UCD9090 , UCD90160A , UCD90160 , UCD90240 , UCD90320U , UCD90120 , UCD9090A , UCD90124 , UCD90124A , UCD90320 The UCD90xxx device has an internal ESD diode to protect on all IO pins and MON pins. When the UCD90xxx…
