- 您现在的位置：买卖IC网 > PDF目录15366 > BD9300FV-E2 (Rohm Semiconductor)IC REG CTRLR BST INV PWM 14-SSOP PDF资料下载
参数资料
| 型号： | BD9300FV-E2 |
| 厂商： | Rohm Semiconductor |
| 文件页数： | 12/17页 |
| 文件大小： | 0K |
| 描述： | IC REG CTRLR BST INV PWM 14-SSOP |
| 标准包装： | 1 |
| PWM 型： | 控制器 |
| 输出数： | 1 |
| 频率 - 最大： | 800kHz |
| 占空比： | 100% |
| 电源电压： | 3.6 V ~ 35 V |
| 降压： | 是 |
| 升压： | 是 |
| 回扫： | 无 |
| 反相： | 是 |
| 倍增器： | 无 |
| 除法器： | 无 |
| Cuk： | 无 |
| 隔离： | 无 |
| 工作温度： | -40°C ~ 85°C |
| 封装/外壳： | 14-LSSOP（0.173"，4.40mm 宽） |
| 包装： | 标准包装 |
| 产品目录页面： | 1373 (CN2011-ZH PDF) |
| 其它名称： | BD9300FV-E2DKR |
3. For output capacitors having low ESR, such as a ceramic capacitor or OS-CON
In order to use capacitors having low ESR (i.e., several tens of mW), two phase-leads should be inserted so that a
– 180 ? phase-dela y, due to LC resonance, will be compensated. The following section shows a typical phase
compensation procedure.
. Phase compensation with secondary phase lead
Vo
R3
C2
Phase lead: fz 1 =
[Hz]
R1
C1
INV
–
+
A
FB
Phase lead: fz 2 =
[Hz]
R2
LC resonant frequency: fr=
[Hz]
Fig. 25 Typical circuit after secondary compensation circuit
For the settings of phase lead frequency, insert both of the phase leads close to the LC resonant frequency.
Phase compensation on the BD9300F/FV
For BD9300F/FV, since the error amplifier input is inverted to the normal input, the phase compensation procedure is
slightly different. (The BD9300F/FV returns feedback to the NON pin.)
Vo
R1
R2
Internal REG
2.5V
100k Ω
+
A
–
100
k Ω
C
The BD9300 returns feedback to the +
side of the error amplifier.
FB
Fig. 26 Typical circuit after phase compensation on BD9300F/FV
The BD9300F/FV feeds back on the + side input and returns the phase compensation on the - side input. Consequently,
resistance of the resistance divider being used to determine the reference voltage has influence on the frequency
characteristics. (The BD9300F/FV has a 1/2 VREF pin to divide resistance by 100 k Ω .)
The following section shows the phase characteristics.
Primary phase delay: fp =
1
100k Ω
2
[Hz], where A is approximately 80 dB.
Phase lead:
fz =
1
100k Ω
[Hz]
2
As a result, inserting a phase compensation capacitor will cause phase lead component. If any further phase lead is
required, add a capacitor in parallel with the R1.
12/16
相关PDF资料 |
PDF描述 |
|---|---|
| RBM36DCTD | CONN EDGECARD 72POS DIP .156 SLD |
| LTC2919CDDB-2.5#TRPBF | IC MONITOR PREC 2.5V 10-DFN |
| HCM22DSEN | CONN EDGECARD 44POS .156 EYELET |
| LTC2919CDDB-2.5#TRMPBF | IC MONITOR PREC 2.5V 10-DFN |
| SEK470M160ST | CAP ALUM 47UF 160V 20% RADIAL |
相关代理商/技术参数 |
参数描述 |
|---|---|
| BD9300FV-FE2 | 功能描述:DC/DC 开关控制器 STEP-UP/DOWN INVERTING SWITCHING RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:CPAK |
| BD9302FP | 制造商:ROHM 制造商全称:Rohm 功能描述:2-output High-efficiency Step-down Switching Regulators with Built-in Power MOSFET |
| BD9302FP_08 | 制造商:ROHM 制造商全称:Rohm 功能描述:2-output High-efficiency Step-down Switching Regulators with Built-in Power MOSFET |
| BD9302FP-E | 制造商:ROHM 制造商全称:Rohm 功能描述:A wide input voltage range of 6 V to 18 V, Easy switching frequency setting in the range of 200 k to 2.5 MHz. |
| BD9302FP-E2 | 功能描述:直流/直流开关调节器 REG SW 2CH 2A RoHS:否 制造商:International Rectifier 最大输入电压:21 V 开关频率:1.5 MHz 输出电压:0.5 V to 0.86 V 输出电流:4 A 输出端数量: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:PQFN 4 x 5 |
发布紧急采购，3分钟左右您将得到回复。