- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄298969 > CS5151GDR16 1.5 A SWITCHING CONTROLLER, PDSO16 PDF資料下載
參數(shù)資料
| 型號(hào)： | CS5151GDR16 |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 1.5 A SWITCHING CONTROLLER, PDSO16 |
| 封裝： | 0.150 INCH, SO-16 |
| 文件頁(yè)數(shù)： | 14/14頁(yè) |
| 文件大小： | 222K |
| 代理商： | CS5151GDR16 |
第1頁(yè)第2頁(yè)第3頁(yè)第4頁(yè)第5頁(yè)第6頁(yè)第7頁(yè)第8頁(yè)第9頁(yè)第10頁(yè)第11頁(yè)第12頁(yè)第13頁(yè)當(dāng)前第14頁(yè)
CS5151
Applications Information: continued
9
components, input power supply, and PC board traces
than occurs with constant current limit protection (see
Figures 10 and 11).
If the short circuit condition is removed, output voltage
will rise above the 1V level, preventing the FAULT latch
from being set, allowing normal operation to resume.
Figure 10: CS5151 demonstration board hiccup mode short circuit pro-
tection. Gate pulses are delivered while the soft start capacitor charges,
and cease during discharge.
Figure 11: Startup with regulator output shorted.
Overvoltage Protection
Overvoltage protection (OVP) is provided as result of the
normal operation of the V2 control topology and requires
no additional external components. The control loop
responds to an overvoltage condition within 100ns, causing
the MOSFET to shut off, disconnecting the regulator from
its input voltage.
External Output Enable Circuit
On/off control of the regulator can be implemented
through two additional discrete components (see Figure 12).
This circuit operates by pulling the soft start pin high, and
the VFFB pin low, emulating a short circuit condition.
Figure 12: Implementing shutdown with the CS5151.
External Power Good Circuit
An optional Power Good signal can be generated through
the use of four additional external components (see Figure
15). The threshold voltage of the Power Good signal can be
adjusted per the following equation:
VPower Good =
This circuit provides an open collector output that drives
the Power Good output to ground for regulator voltages
less than VPower Good.
Figure 13: Implementing Power Good with the CS5151.
VOUT
CS5151
R1
10k
R2
6.2k
R3
10k
Power Good
5V
PN3904
(R1 + R2) × 0.65V
R2
Shutdown
Input
5V
VFFB
CS5151
SS
5
8
IN4148
MMUN2111T1 (SOT-23)
Trace 4 = 5V from PC Power Supply (2V/div.)
Trace 2 = Inductor Switching Node (2V/div.)
Trace 4 - 5V Supply Voltage (2V/div.)
Trace 3 - Soft Start Timing Capacitor (1V/div.)
Trace 2 - Inductor Switching Node (2V/div.)
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| CS5151HGD16 | Analog IC |
| CS5151HGDR16 | Analog IC |
| CS5160GD16 | Analog IC |
| CS5205-3GDPR3 | 3.3 V FIXED POSITIVE LDO REGULATOR, 1.3 V DROPOUT, PSSO3 |
| CS5205-3GDP3 | 3.3 V FIXED POSITIVE LDO REGULATOR, 1.3 V DROPOUT, PSSO3 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| CS5151GN16 | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| CS-5151H | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:CPU 4-Bit Nonsynchronous Buck Controller |
| CS-5151HD16 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Voltage-Mode SMPS Controller |
| CS-5151HDR16 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Voltage-Mode SMPS Controller |
| CS-5151N16 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Voltage-Mode SMPS Controller |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。