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參數(shù)資料
| 型號： | S-8340A |
| 廠商： | Seiko Instruments Inc. |
| 英文描述： | PWM Control High-Frequency Step-Up Switching Regulator-Controllers(PWM控制，高頻步升開關穩(wěn)壓器-控制器) |
| 中文描述： | PWM控制高頻升壓型開關穩(wěn)壓器控制器（脈寬調(diào)制控制，高頻步升開關穩(wěn)壓器-控制器） |
| 文件頁數(shù)： | 6/38頁 |
| 文件大?。?/td> | 420K |
| 代理商： | S-8340A |
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PWM Control & PWM/PFM Control High-Frequency Step-Up Switching Regulator-Controllers
Rev.1.00
S-8340/8341 Series
Seiko Instruments Inc.
5
Electrical Characteristics
1. S-834xAxxAFT
(Ta = 25 C, unless otherwise specified)
Parameter
Symbol
Conditions
Min.
Typ.
Max.
Units
Measure-
ment
Circuit
Output voltage *1)
V
OUT
(E)
V
IN
= V
OUT
(S) 0.6
I
OUT
= V
OUT
(S) / 50
V
OUT
(S)
0.98
V
OUT
(S)
V
OUT
(S)
1.02
6
V
1
Input voltage
V
IN
V
1
Oscillation start voltage
V
ST
No external component.
The voltage is applied to VOUT.
0.9
640
810
1060
1250
V
2
S-834xA25 34
S-834xA35 44
S-834xA45 54
S-834xA55 60
350
460
630
810
Current consumption 1
I
SS
1
V
OUT
= V
OUT
(S) 0.95
EXT pin open
A
2
Current consumption 2
Current consumption
during power off
I
SS
2
V
OUT
= V
OUT
(S) + 0.5 V
EXT pin open
V
OUT
= V
OUT
(S) 0.95
Power-off pin = 0V
180
300
A
2
I
SSS
3.0
A
2
S-834xA25 34
S-834xA35 44
S-834xA45 54
S-834xA55 60
S-834xA25 34
S-834xA35 44
S-834xA45 54
S-834xA55 60
-13
-17
-21
-23
32
42
50
56
-24
-30
-34
-37
56
69
78
85
I
EXTH
V
EXT
= V
OUT
(E) - 0.2 V
mA
EXT pin output current
I
EXTL
V
EXT
= 0.2 V
mA
Line regulation
V
OUT
1
V
OUT
(S) 0.4 V
IN
V
OUT
(S) 0.6
I
OUT
= V
OUT
(S) / 50
V
IN
= V
OUT
(S) 0.6
10 A I
OUT
V
OUT
(S) / 40
V
IN
= V
OUT
(S) 0.6
I
OUT
= V
OUT
(S) / 50
-40 C Ta 85 C
V
OUT
= V
OUT
(S) 0.95
Measure waveform at EXT pin
V
IN
= V
OUT
(S) 0.95
Measure waveform at EXT pin
V
OUT
(S)
0.5%
V
OUT
(S)
0.5%
V
OUT
(S)
1%
V
OUT
(S)
1%
V
1
Load regulation
V
OUT
2
V
1
Output voltage
temperature coefficient
*2)
V
OUT
Ta V
OUT
100
ppm/
C
1
Oscillation frequency
fosc
510
600
690
kHz
2
Maximum duty ratio
MaxDuty
73
82
89
%
2
PWM/PFM-control
switch duty ratio
(S-8341xxxAFT)
Current limit detection
voltage
PFM Duty
V
IN
= V
OUT
(E) - 0.1 V
Under no load
19
27
35
%
1
V
SENSE
V
= V
(S) 0.95
Judge oscillation stop in "L", at EXT pin.
V
= V
(S) 0.95
Judge oscillation at EXT pin.
V
= V
(S) 0.95
Judge oscillation stop at EXT pin.
V
OUT
= 6 V, V
ON/OFF
= 6 V
V
OUT
= 6 V, V
ON/OFF
= 0 V
V
IN
= V
OUT
(S) 0.6, C
SS
= 4700pF
I
OUT
= V
OUT
(S) / 50
Measure time until oscillation occurs at
EXT pin.
90
120
150
mV
2
Power-Off pin
input voltage
V
SH
0.8
V
2
V
SL
0.3
Power-Off pin
input leakage current
I
SH
I
SL
0.1
-0.1
A
2
Soft-Start time
T
SS
3.0
8.5
14.0
ms
1
S-834xA25 34
S-834xA35 44
S-834xA45 54
S-834xA55 60
83
85
87
87
Efficiency
EFFI
V
IN
= V
OUT
(S) 0.6
I
OUT
=V
OUT
(S) / 50
%
1
*1)
V
OUT
(S): Set output voltage value
V
OUT
(E): Actual output voltage value: Output voltage value when I
OUT
=V
OUT
(S)/50 and V
IN
=V
OUT
(S) 0.6.
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PDF描述 |
|---|---|
| S-8340B | PWM Control High-Frequency Step-Up Switching Regulator-Controllers(PWM控制，高頻步升開關穩(wěn)壓器-控制器) |
| S-8341 | PWM/PFM Control High-Frequency Step-Up Switching Regulator-Controllers(PWM/PFM控制，高頻步升開關穩(wěn)壓器-控制器) |
| S-8341A | PWM/PFM Control High-Frequency Step-Up Switching Regulator-Controllers(PWM/PFM控制，高頻步升開關穩(wěn)壓器-控制器) |
| S-8341B | PWM/PFM Control High-Frequency Step-Up Switching Regulator-Controllers(PWM/PFM控制，高頻步升開關穩(wěn)壓器-控制器) |
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| S-8340A25AFT-T2 | 功能描述:DC/DC 開關控制器 2.5V Step-Up 2.0% RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風格: 封裝 / 箱體:CPAK |
| S-8340A25AFT-T2-G | 功能描述:DC/DC 開關控制器 2.5V Step-Up 2.0% RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風格: 封裝 / 箱體:CPAK |
| S-8340A30AFT-T2 | 功能描述:DC/DC 開關控制器 3.0V Step-Up 2.0% RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風格: 封裝 / 箱體:CPAK |
| S-8340A30AFT-T2-G | 功能描述:DC/DC 開關控制器 3.0V Step-Up 2.0% RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風格: 封裝 / 箱體:CPAK |
| S-8340A33AFT-T2 | 功能描述:DC/DC 開關控制器 3.3V Step-Up 2.0% RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風格: 封裝 / 箱體:CPAK |
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