Part Number: LP8861-Q1 Dear: When I use LP8861-Q1, there is a problem of inductance whistle. When the problem occurs, the SW pin waveform is as shown in the figure, the yellow is connected to the SW pin, and the green is connected to the PWM pin. When…
Part Number: LP8861-Q1 Other Parts Discussed in Thread: LP8867-Q1 ,
Hi,
The customer is considering changing LP8867-Q1 to LP8861-Q1.
Please review whether LP8861-Q1 can be used for the existing schematic.
LP8867-Q1 Schematic]
Delete Schematic.
Q1. What…
Part Number: LP8861-Q1 Hi, E2E engineers,
I'm J.Komura and supporting our customers' question in Disty TEL(Tokyo Electron Device).
This device is using Cu bond-wire with PWP PKG, then they want to know its Q006 information for their parts management…
Part Number: LP8861-Q1 Other Parts Discussed in Thread: LP8867-Q1 , Hi team,
My customer wants to use LP8867-Q1 to replace LP8861-Q1. Are they pin to pin device?
I read from the datasheet, the package descripted in first page is different. But the detailed…
Part Number: LP8861-Q1 hi team,
The customer uses LP8861-Q1 and their spec is as follows:
Vin-min=9V
Vboost= 37V
Iout= 100mA*3
current ripple 30%
f=330kHz
The recommend inductor is 22uH. But, the calculated value is 125.9uH, which is much higher than…
Part Number: LP8861-Q1 Is there an acceptable range for R2? Data sheet suggests 130K. To use the LP8867 as a 2nd source, R1/R2 is recommended to be 5X. If R1 were 90k, then R1 and R2 would give the required output voltage when using either LP8861 or lP8867…
Part Number: LP8861-Q1 Hi team,
customer application as below:
input 12V
output 28V/80mA per channel, 4sLED
OVP is 43V
f of PWM is 10kHz
problem is that LCD display can't be light, measure the LP8861 output, it is 12V, and no SW signal. FAULT pin is high…
Part Number: LP8861-Q1 The combination instrument appears black screen, and the hardware engineer analyzes that the lock is the abnormal output voltage of the IC, conducts ABA exchange on the faulty chip, and confirms that the fault phenomenon follows…
