參數(shù)資料
型號： HA16120FP
廠商： Hitachi,Ltd.
元件分類： 基準(zhǔn)電壓源/電流源
英文描述： RADIATION HARDENED HIGH EFFICIENCY, 5 AMP SWITCHING REGULATORS
中文描述： 抗輻射高效，5安培開關(guān)穩(wěn)壓器
文件頁數(shù)： 7/38頁
文件大?。?/td> 275K
代理商： HA16120FP
HA16114P/PJ/FP/FPJ, HA16120FP/FPJ
7
The oscillator frequency f
OSC
can be calculated as follows.
1
t
1
+ t
2
+ t
3
C
T
×
(V
H
V
L
)
1.1 V/R
T
C
T
×
(V
H
V
L
)
3
×
1.1 V/R
T
f
OSC
=
t
1
=
t2 =
V
H
V
L
= 0.6 V
f
OSC
≈
1
0.73
×
C
T
×
R
T
+ 0.8 (
μ
s)
(Hz)
t3
≈
0.8
μ
s (comparator delay time)
Here,
Since
At high frequencies the comparator delay causes the sawtooth wave to overshoot the 1.6 V threshold and
undershoot the 1.0 V threshold, and changes the dead-band thresholds accordingly. Select constants by
testing under implementation conditions.
R
T
1 : 4
C
T
Vref
2.5 V
V = 1.6 V typ
V = 1.0 V typ
t
1
t
2
t
1
: t
2
= 3 : 1
External circuit
3.2 V
(Internal voltage)
SYNC
R
B
R
C
R
A
1.1 V
Current
mirror
C charging
I
O
Discharg
-ing 3I
Oscillator
comparator
O
Sync
circuit
I
O
Figure 1.1 Equivalent Circuit of Oscillator
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
HA16120FP-E 制造商:Renesas Electronics 功能描述:DC DC Cntrlr Single-OUT PWM DC to DC Controller 3.9V to 40V Input 16-Pin SOP 制造商:Renesas Electronics 功能描述:DC DC Cntrlr Single-OUT PWM DC to DC Controller 3.9V to 40V Input 16-Pin SOP Bulk 制造商:Renesas Electronics Corporation 功能描述:Power Sup,SW Reg.Control IC,Boost,DIP16
HA16120FPJ 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:Switching Regulator for Chopper Type DC/DC Converter
HA16121 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:Switching Regulator for Chopper Type DC/DC Converter
HA16121FP 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:Switching Regulator for Chopper Type DC/DC Converter
HA16121FP-E 制造商:Renesas Electronics 功能描述:DC DC Cntrlr Dual-OUT PWM DC to DC Controller/Step Up/Step Down 20-Pin SOP 制造商:Renesas Electronics 功能描述:DC DC Cntrlr Dual-OUT PWM DC to DC Controller/Step Up/Step Down 20-Pin SOP Cut Tape 制造商:Renesas Electronics Corporation 功能描述:Power Sup,SW Reg.Control IC,Boost,FP-20
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