- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄368346 > PT6621D 40V Single N-Channel HEXFET Power MOSFET in a D-Pak package; A IRFR3504Z with Standard Packaging PDF資料下載
參數(shù)資料
| 型號： | PT6621D |
| 英文描述： | 40V Single N-Channel HEXFET Power MOSFET in a D-Pak package; A IRFR3504Z with Standard Packaging |
| 中文描述： | 模擬IC |
| 文件頁數(shù)： | 5/6頁 |
| 文件大?。?/td> | 129K |
| 代理商： | PT6621D |
Application Notes
For technical support and more information, see inside back cover or visit www.ti.com/powertrends
PT6620 Series
Using the Standby Function on the PT6620 Series
of 12V Bus Converters
For applications requiring output voltage On/Off control,
the 14-pin PT6620 ISR series incorporates a standby
function. This feature may be used for power-up/shut-
down sequencing, and wherever there is a requirement
for the output status of the module to be controlled by
external circuitry.
The standby function is provided by the
STBY*
control,
pin 3. If pin 3 is left open-circuit the regulator operates
normally, providing a regulated output whenever a valid
supply voltage is applied to V
(pins 4, 5, & 6) with re-
spect to GND (pins 7-10). Connecting pin 3 to ground
2
will disable the regulator output and reduce the input
current to less than 30mA
4
. Grounding the standby con-
trol will also hold-off the regulator output during the
period that input power is applied.
The standby input is ideally controlled with an open-
collector (or open-drain) discrete transistor (See Figure
1). It can also be driven directly from a dedicated
TTL
3
compatible gate. Table 1 provides details of the threshold
requirements.
Table 1 Inhibit Control Thresholds
(2,3)
Parameter
Min
Max
Enable (VIH)
Disable (VIL)
1V
–0.1V
5V
0.3V
Notes:
1. The Standby/Inhibit control logic is similar for all Power
Trends’ modules, but the flexibility and threshold
tolerances will be different. For specific information on
this function for other regulator models, consult the
applicable application note.
2. The Standby input on the PT6620 regulator series may be
controlled using either an open-collector (or open-drain)
discrete transistor, or a device with a totem-pole output. A
pull-up resistor is not necessary. The control input has an
open-circuit voltage of about 1.5Vdc. To disable the
regulator output, the control pin must be “pulled” to less
than 0.3Vdc with a low-level 0.25mA max. sink to ground.
3. The Standby input on the PT6620 series is also compatible
with TTL logic. A standard TTL logic gate will meet the
0.3V V
IL
(max) requirement (Table 1 ) at 0.25mA sink
current.
Do not
drive the Standby control input above
5Vdc.
4. When the regulator output is disabled the current drawn
from the input source is reduced to approximately 15mA
(30mA maximum).
5. The turn-off time of Q
1
, or rise time of the standby input
is not critical on the PT6620 series. Turning Q
1
off slowly,
over periods up to 100ms, will not damage the regulator.
However, a slow turn-off time will increase both the initial
delay and rate-of-rise of the output voltage.
Figure 1
Turn-On Time:
Turning Q
in Figure 1 off, removes the low-
voltage signal at pin 3 and enables the output. The PT6620
series of regulators will provide a fully regulated output voltage
within 20ms. The actual turn-on time may vary with load and
the total amount of output capacitance. Figure 2 shows the
typical output voltage waveform of a PT6625 (5.0V) following
the prompt turn-off of Q
at time t =0 secs. The waveform was
measured with a 12V input voltage, and 5A resistive load.
Figure 2
C
in
+
C
out
+
Inhibit
V
in
V
o
COM
COM
Q1
BSS138
+5V V
in
PT6620
11,12,13
14
7,8,9,10
4,5,6
Vin
Vo
GND
Vo(adj)
STBY
3
Vsense
1
0
2
4
6
8
10
12
14
16
18
t (milli - secs)
V
o
(2V/Div)
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| PT6621E | 40V Single N-Channel HEXFET Power MOSFET in a D-Pak package; Similar to IRFR3504Z with Lead Free Packaging |
| PT6621G | Analog IC |
| PT6621P | 55V Single N-Channel HEXFET Power MOSFET in a TO-220AB package; A IRF1405 with Standard Packaging |
| PT6621R | Analog IC |
| PT6622B | Analog IC |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| PT6621E | 功能描述:DC/DC轉(zhuǎn)換器 3.3Vout 6A 12V-Inp Adj ISR RoHS:否 制造商:Murata 產(chǎn)品: 輸出功率: 輸入電壓范圍:3.6 V to 5.5 V 輸入電壓（標(biāo)稱）: 輸出端數(shù)量:1 輸出電壓（通道 1）:3.3 V 輸出電流（通道 1）:600 mA 輸出電壓（通道 2）: 輸出電流（通道 2）: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體尺寸: |
| PT6621F | 功能描述:REGULATOR 12V-3.3V 7A SIP W/CU S RoHS:否 類別:電源 - 板載 >> DC DC Converters 系列:PT6620 標(biāo)準(zhǔn)包裝:10 系列:PT4570 類型:隔離 輸出數(shù):1 電壓 - 輸入（最?。?36V 電壓 - 輸入（最大）:75V Voltage - Output 1:9V Voltage - Output 2:- Voltage - Output 3:- 電流 - 輸出（最大）:3.3A 電源（瓦） - 制造商系列:30W 電壓 - 隔離:1.5kV（1500V） 特點(diǎn):- 安裝類型:表面貼裝 封裝/外殼:19-SIP SMD 模塊 尺寸/尺寸:3.00" L x 1.19" W x 0.50" H（76.2mm x 30.2mm x 12.7mm） 包裝:托盤 工作溫度:-40°C ~ 85°C 效率:84% 電源（瓦特）- 最大:30W |
| PT6621G | 功能描述:DC/DC轉(zhuǎn)換器 3.3Vout 6A 12V-Inp Adj ISR RoHS:否 制造商:Murata 產(chǎn)品: 輸出功率: 輸入電壓范圍:3.6 V to 5.5 V 輸入電壓（標(biāo)稱）: 輸出端數(shù)量:1 輸出電壓（通道 1）:3.3 V 輸出電流（通道 1）:600 mA 輸出電壓（通道 2）: 輸出電流（通道 2）: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體尺寸: |
| PT6621L | 功能描述:REGULATOR 12V-3.3V 7A SIP W/CU H RoHS:否 類別:電源 - 板載 >> DC DC Converters 系列:PT6620 標(biāo)準(zhǔn)包裝:10 系列:PT4570 類型:隔離 輸出數(shù):1 電壓 - 輸入（最?。?36V 電壓 - 輸入（最大）:75V Voltage - Output 1:9V Voltage - Output 2:- Voltage - Output 3:- 電流 - 輸出（最大）:3.3A 電源（瓦） - 制造商系列:30W 電壓 - 隔離:1.5kV（1500V） 特點(diǎn):- 安裝類型:表面貼裝 封裝/外殼:19-SIP SMD 模塊 尺寸/尺寸:3.00" L x 1.19" W x 0.50" H（76.2mm x 30.2mm x 12.7mm） 包裝:托盤 工作溫度:-40°C ~ 85°C 效率:84% 電源（瓦特）- 最大:30W |
| PT6621M | 功能描述:REGULATOR 12V-3.3V 7A SIP W/CU H RoHS:否 類別:電源 - 板載 >> DC DC Converters 系列:PT6620 標(biāo)準(zhǔn)包裝:10 系列:PT4570 類型:隔離 輸出數(shù):1 電壓 - 輸入（最?。?36V 電壓 - 輸入（最大）:75V Voltage - Output 1:9V Voltage - Output 2:- Voltage - Output 3:- 電流 - 輸出（最大）:3.3A 電源（瓦） - 制造商系列:30W 電壓 - 隔離:1.5kV（1500V） 特點(diǎn):- 安裝類型:表面貼裝 封裝/外殼:19-SIP SMD 模塊 尺寸/尺寸:3.00" L x 1.19" W x 0.50" H（76.2mm x 30.2mm x 12.7mm） 包裝:托盤 工作溫度:-40°C ~ 85°C 效率:84% 電源（瓦特）- 最大:30W |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。