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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（脈寬調制控制，高頻步升開關穩(wěn)壓器-控制器） |
| 文件頁數(shù)： | 7/38頁 |
| 文件大小： | 420K |
| 代理商： | S-8340A |
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PWM Control & PWM/PFM Control High-Frequency Step-Up Switching Regulator-Controllers
S-8340/8341 Series
Rev.1.00
Seiko Instruments Inc.
6
*2)
The change of output voltage with temperature [mV/ C] is calculated from the following formula:
Conditions:
Peripheral components:
Coil
: Sumida Electric Co., Ltd. CD54 (10 H).
Diode
: Matsushita Electronics Corporation MA735 (Schottky type).
Capacitor
: Nichicon F93 (16 V, 47 F tantalum type).
Transistor
: Sanyo 2SD 1628G.
Base resistor (Rb)
: 1.0 k
Base capacitor (Cb)
: 2200 pF (Ceramic type)
CVREF
: 0.01 F
CSS
: 4700pF
VDD pin is connected to VOUT.
The power-off pin is connected to VOUT, SENSE pin is connected to VSS, unless otherwise specified. .
Note 1:
Boot operation is performed from V
DD
=0.9 V. However, 2.5 V or more for VDD is recommended to stabilize the output
voltage and oscillation frequency. If V
DD
is taken from V
IN
or other power sources, instead of V
OUT
, V
DD
should be 2.5 V
or more. However, if V
DD
is not taken from V
OUT
, the output voltage precision of ±2.0% is not guaranteed due to
dependency of output voltage on V
DD
. In particular, accuracy of output voltage is degraded significantly when the V
DD
voltage is 6.0 V or more. If V
DD
of 2.5 V or more is applied, increase power supply so that V
DD
becomes 2.5 V or more
within the soft-start time (3 ms).
V
Ta V
OUT
(Output voltage temperature factor)
(Change of output voltage with temperature) (Set output voltage
value)
[mV/ C]
V
OUT
Ta
V
OUT
(S)[V]
=
×
[ppm/ C]
1000
相關PDF資料 |
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) |
| S-8420AF | BATTERY BACKUP IC FOR 1-CHIP CPU |
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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