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參數資料
| 型號： | S-8355Q34BD-OWT-TF |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 0.08 A SWITCHING CONTROLLER, 690 kHz SWITCHING FREQ-MAX, PDSO6 |
| 封裝： | SNB-6 |
| 文件頁數： | 27/77頁 |
| 文件大?。?/td> | 836K |
| 代理商： | S-8355Q34BD-OWT-TF |
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STEP-UP, SUPER-SMALL PACKAGE, 600 kHz, PWM CONTROL or PWM/PFM SWITCHABLE SWITCHING REGULATOR CONTROLLER
Rev.7.0_00
S-8355/56/57/58 Series
Seiko Instruments Inc.
33
5. VDD / VOUT Separate Type (For E, G, J, K, L, M, P and Q Types)
The E, G, J, K, L, M, P and Q types provides separate internal circuit power supply (VDD pin) and output voltage
setting pin (VOUT pin) in the IC, making it ideal for the following applications.
(1) When changing the output voltage with external resistance.
(2) When outputting a high voltage such as
+15 V or +20 V.
Choose the products in the Table 29 according to the applications (1) or (2) above.
Table 29
Output Voltage (VCC)
1.8 V
≤ VCC < 5 V
5 V
≤ VCC
Reference Circuit
S-835xx18
Yes
Application circuit 1 (Figure 26)
S-835xx50
Yes
Application circuit 1 (Figure 26)
Connection to VDD pin
VIN or VCC
VIN
Cautions 1. This IC starts a step-up operation at VDD = 0.8 V, but set 1.8 ≤ VDD ≤ 10 V to stabilize the output
voltage and frequency of the oscillator. (Input a voltage of 1.8 V or more at the VDD pin for all
products with a setting less than 1.9 V.) An input voltage of 1.8 V or more at the VDD pin allows
connection of the VDD pin to either the input voltage VIN pin or output VOUT pin.
2. Choose external resistors RA and RB so as to not affect the output voltage, considering that there
is impedance between the VOUT pin and VSS pin in the IC chip. The internal resistance between
the VOUT pin and VSS pin is as follows :
(1) S-835xx18 : 2.1 to 14.8 M
Ω
(2) S-835xx20 : 1.4 to 14.8 M
Ω
(3) S-835xx30 : 1.4 to 14.2 M
Ω
(4) S-835xx50 : 1.4 to 12.1 M
Ω
3. Attach a capacitor (CC) in parallel to the RA resistance when an unstable event such as
oscillation of the output voltage occurs. Calculate CC using the following equation :
[]
kHz
20
R
2
1
C
A
C
=
π
F
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相關代理商/技術參數 |
參數描述 |
|---|---|
| S-8355Q34BD-OWT-TFG | 制造商:Seiko Instruments Inc (SII) 功能描述:DC DC CNTRLR SGL-OUT W/ PWM DC TO DC CNTRLR/STEP UP 10V 6PIN - Tape and Reel 制造商:Seiko Instruments Inc (SII) 功能描述:IC REG CTRLR BST PWM 6-SNB |
| S-8355Q34MC-OWTT2G | 功能描述:DC/DC 開關控制器 Step-Up SWR PWM 25.9uA Iq 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 輸出端數量:1 最大工作溫度:+ 125 C 安裝風格: 封裝 / 箱體:CPAK |
| S-8355Q45MC-OXET2G | 功能描述:DC/DC 開關控制器 STEP-UP SWR PWM 25.9UA IQ 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 輸出端數量:1 最大工作溫度:+ 125 C 安裝風格: 封裝 / 箱體:CPAK |
| S-8355Q50BD-OXJ-TFG | 制造商:Seiko Instruments Inc (SII) 功能描述:DC DC CNTRLR SGL-OUT W/ PWM DC TO DC CNTRLR/STEP UP 10V 6PIN - Tape and Reel 制造商:Seiko Instruments Inc (SII) 功能描述:IC REG CTRLR BST PWM 6-SNB |
| S-8355Q50MC-OXJT2G | 功能描述:DC/DC 開關控制器 Step-Up SWR PWM 25.9uA Iq 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 輸出端數量:1 最大工作溫度:+ 125 C 安裝風格: 封裝 / 箱體:CPAK |
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