參數(shù)資料
型號(hào): HA16341FP
英文描述: SMPS Controller
中文描述: 開關(guān)電源控制器
文件頁(yè)數(shù): 16/21頁(yè)
文件大小: 225K
代理商: HA16341FP
HA16341NT/FP, HA16342NT/FP
Rev.1, Jan. 2001, page 16 of 21
Timing Chart 5 (External Trigger Control)
Primary IC
oscillation
Primary IC
AUX-OUT
Trigger input
(Trig terminal)
Trigger detector
internal signal
Secondary
oscillation
Trigger Vth
Vtrig:
0.5V typ
0V
0V
0V
0V
0V
Primary
Primary IC
AUX-OUT
Secondary
Vth
CTH
= about 2.9V @CCT = 430pF
This IC is triggered by negative pulse.
R1 and R2 must be calculated including internal impedance of 230k
.
Vref (5V)
Trig
HA16341
Figure B. External Trigger Application
R1
R2
230k
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