Other Parts Discussed in Thread: TPS61196
Hi
Below is our application condition. Can you help review our component selection below also is 400KHz switching frequency looks ok?
Also is the junction temperature looks safe?
Architecture of LED ：4 strings and 10pcs LED for each string. (totally 40 pcs LED)
LED current：40mA/string
LED voltage(Max.)：34.5V
Range of ambient temperature：-40~85℃
Input voltage：8V (min), 12V(typ.)
Output capacitors：20uF
Inductor used：10uH； Max DC Resistance 0.173ohm [use AMPI0618ED100MTA]
Schottky used：Reverse voltage=60V；Max Forward voltage=0.64V；Max Forward current=3A [use RB058LAM]
NMOS used：Max VDS=45V；Max Drain current =2.5A；Gate-Source voltage=1.2V [use RTR025N05]
switching frequency of TPS61196 = 400kHz or recommend ?
