參數(shù)資料
型號(hào)： SP6139EU
英文描述： Wide Input, 1.3MHz Synchronous PWM Controller
中文描述： 寬輸入，1.3MHz同步PWM控制器
文件頁(yè)數(shù)： 11/13頁(yè)
文件大?。?/td> 148K
代理商： SP6139EU
11
Date: 12/20/04 SP6139 Wide Input, 1.3MHz Synchronous PWM Controller Copyright 2004 Sipex Corporation
APPLICATIONS INFORMATION
The goal of loop compensation is to manipulate
loop frequency response such that its gain crosses
over 0db at a slope of -20db/dec. The first step
of compensation design is to pick the loop
crossover frequency. High crossover frequency
is desirable for fast transient response, but often
jeopardizes the system stability. Crossover fre-
quency should be higher than the ESR zero but
less than 1/5 of the switching frequency. The
ESR zero is contributed by the ESR associated
with the output capacitors and can be deter-
mined by:
Z(ESR)
=
1
2
π
C
OUT
R
ESR
The next step is to calculated the complex con-
jugate poles contributed by the LC output filter,
P(LC)
=
1
2
π
L C
OUT
Fr(Hz)
Error Amplify Gain
Condition:
20 Log (RZ2/R1)
(dB)
1
1
1
1
1
Bode Plot of Type III Error Amplify Compensation.
When the output capacitors are of a Ceramic
Type, the SP6139CU Evaluation Board requires
a Type III compensation circuit to give a phase
boost of 180
°
in order to counteract the effects of
an under damped resonance of the output filter
at the double pole frequency.
Table 1. Input and Output Stage Components Selection Charts.
INDUCTORS - SURFACE MOUNT
Inductor Specification
Inductance
(uH)
Manufacturer/Part No.
Series R
m
4.30
4.50
8.60
I
SAT
(a)
Size
Inductor Type
Manufaturer
Website
LxW(mm)
Ht.(mm)
2.7
2.7
3.3
Easy Magnet SC5018-2R7M
TDK RLF 12560T-2R7N110
Coilcraft DO5010P-332HC
12.0
12.2
17.0
12.6x12.6
12.5x12.8
14.7x15.2
4.5
6.0
8.0
Shielded Ferrite Core
Shielded Ferrite Core
Unshielded Ferrite Core
inter-technical.com
tdk.com
coilcraft.com
1.2
1.2
1.5
1.9
Easy Magnet SC5018-1R2M
Inter-Technical SC4015-1R2M
Coilcraft DO5010P-152HC
TDK RLF 12560T-1R9N120
1.96
4.37
4.00
3.60
CAPACITORS -SURFACE MOUNT
20.0
17.0
25.0
13.2
12.6x12.6
10.0x10.0
14.7x15.2
12.5x12.8
4.5
3.8
8.0
6.0
Shielded Ferrite Core
Shielded Ferrite Core
Unshielded Ferrite Core
Shielded Ferrite Core
inter-technical.com
inter-technical.com
coilcraft.com
tdk.com
Capacitance
(uF)
22
47
Manufacturer/Part No.
ESR
(max)
0.002
0.002
Ripple Current
(A)@45
°
C
4.00
4.00
Size
Voltage
(V)
16.0
6.3
Capacitor
Type
X5R Ceramic
X5R Ceramic
Manufaturer
Website
tdk.com
LxW(mm) Ht.(mm)
3.2x2.5
3.2x2.5
TDK C3225X5R1C226M
TDK C3225X5ROJ476M
2.0
2.5
tdk.com
MOSFET - Surface Mount
MOSFET
Manufacturer/Part No.
RDS (on)
(max)
0.006
ID Current
(A)
14.50
Qg
Qg
Voltage
(V)
30.0
Foot Print
Manufaturer
Website
nC(Typ)
43
nC(Max)
60.0
N-Channel
Fairchild Semi FDS6676S
SO-8
fairchildsemi.com
N-Channel
N-Channel
Note: Components highlighted in Bold are those used on the SP6134 Evaluation Board.
Fairchild Semi FD7088N3
Vishay Si4336DY
0.005
0.004
21.10
25.0
37
32
48.0
50.0
30.0
30.0
SO-8
SO-8
fairchildsemi.com
vishay.com
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
SP6139EU/TR 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:Wide Input, 1.3MHz Synchronous PWM Controller
SP6139EU-L 功能描述:開(kāi)關(guān)變換器、穩(wěn)壓器與控制器 Wide Input, 1.3MHz Synchronous RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開(kāi)關(guān)頻率:1 MHz 工作溫度范圍: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel
SP6139EU-L/TR 功能描述:開(kāi)關(guān)變換器、穩(wěn)壓器與控制器 Wide Input, 1.3MHz Synchronous RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開(kāi)關(guān)頻率:1 MHz 工作溫度范圍: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel
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