Part Number: LM26480 Hi Team,
Our customer designed an application using LM26480SQ-AA, however, he would like to know if he can replace it with LM26480SQ-CF. I understand that the difference between the two is that LM26480SQ-AA buck mode is auto-mode…
Part Number: LM26480
Yes; a set of RC (Resistor and Capacitor) values were used on TI LM26480 EVM with VCC=3.3V on 3 "EN" pins (ENSW2, ENLDO1, ENLDO2) to control the power up delay for the sequence. ENSW1 connects to VCC directly without RC delay. …
Part Number: LM26480-Q1 Hello,
I am currently designing power circuitry using LM26480-Q1 and I have question regarding the GND separation for this chip.
As this chip has pin for core ground (GND_C) , LDO ground (GND_L) , and switching GND (GND_SW1…
Part Number: LM26480 We have a use case for LM26480 where SW1 will supply ~0.5A, but SW2 must now supply 1.8A due to a recent design change.
1.8A is more than the 1.5A recommended rating of the device, but the peak ripple current is still less than…
Part Number: LM26480-Q1 Hi TI team,
I have some questions regarding the LM26480-Q1 :
- What is the maximal current that can support the open drain logic output nPOR when it is pulled to ground? it is not specified in the datasheet.
-I use this…
Part Number: LM26480 Do we need an RC to make sure the delay is happening? I saw another post where they recommend a 1uF cap but I don't think the trace resistance will be high enough to achieve 8ms delay.
Part Number: LM26480 Hi team,
LM26480's datasheet mentions the enable signal needs 8ms delay from Vin.
What will be happened if it's violated?
Regards,
Part Number: LM26480-Q1 Other Parts Discussed in Thread: LM26480 , TINA-TI I downloaded the TINA-TI Spice model of LM26480. However, couldn't get the AC Analysis working using LM26480_BUCK1 TRANSIENT MODEL. Any help on this is highly appreciated.
Jenny…
Hello,
Yes there is a parasitic diode between VDDA and VINLDO12 in LM26480, so you have to connect them to the same input voltage. Unfortunately the datasheet is not clear about it..
VINLDO12 is analog power for internal functions (VREF, BIAS, Logic…
Part Number: LM26480 Hello,
We have a design which requires a much stronger pull-up on the NPOR pin than the recommended 100k. We currently have a maximum of 6mA being sunk by this NPOR pin. I cannot see any maximum rated current for this pin in the…
