 English |
|
|
|
|
|
|
|
| ISL78840ASEH Datasheet, PDF (11/15 Pages) Intersil Corporation – Radiation Hardened, High Performance Industry Standard Single-Ended Current Mode PWM Controller | |||
| |||
| ◁ |
ISL78840ASEH, ISL78841ASEH, ISL78843ASEH, ISL78845ASEH
Fault Conditions
A Fault condition occurs if VREF falls below 4.65V. When a Fault
is detected, OUT is disabled. When VREF exceeds 4.80V, the Fault
condition clears, and OUT is enabled.
Ground Plane Requirements
Careful layout is essential for satisfactory operation of the device.
A good ground plane must be employed. A unique section of the
ground plane must be designated for high di/dt currents
associated with the output stage. VDD should be bypassed
directly to GND with good high frequency capacitors.
References
[1] Ridley, R., âA New Continuous-Time Model for Current Mode
Controlâ, IEEE Transactions on Power Electronics, Vol. 6,
No. 2, April 1991.
11
FN7952.0
May 29, 2012
|
▷ |
German
Russian
Spanish
Italian
Polish
Chinese
Japanese
Korean
French
Portuguese