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參數(shù)資料
| 型號(hào)： | L296 |
| 廠商： | 意法半導(dǎo)體 |
| 英文描述： | HIGH CURRENT SWITCHINGREGULATORS |
| 中文描述： | 大電流SWITCHINGREGULATORS |
| 文件頁數(shù)： | 15/22頁 |
| 文件大?。?/td> | 285K |
| 代理商： | L296 |
Figure35 :
P.C. Boardand ComponentLayoutof theCircuit of fig.34 (1:1 scale)
SELECTION OF COMPONENT VALUES (see fig. 34)
Component
Recommended
Value
Purpose
Allowed Rage
Min.
–
Notes
Max.
R1
R2
–
100 k
Set Input Voltage
Threshold for Reset.
220k
R1/R2
V
i min
5
1
If output voltage is sensed R1 and
R2 may be limited and pin 12
connected to pin 10.
R3
R4
4.3 k
10 k
Sets Switching Frequency
Pull-down Resistor
1 k
100k
22k
May be omitted and pin 6 grounded
if inhibit not used.
R5
R6
15 k
Frequency Compensation
Collector Load For Reset
Output
10k
V
O
0.05A
–
–
Omitted if reset function not used.
R7
R8
–
4.7 k
Divider to Set Output
Voltage
–
1k
R7/R8 =V
O
V
REF
V
REF
-
R
iim
–
Sets Current Limit Level
7.5k
If R
is omitted and pin 4 left open
the current limit is internally fixed.
C1
C2
C3
C4
10
μ
F
2.2
μ
F
2.2 nF
2.2
μ
F
Stability
Sets Reset Delay
Sets Switching Frequency
Soft Start
2.2
μ
F
–
1 nF
1
μ
F
–
Omitted if reset function not used.
3.3nF
–
Also determines average short
circuit current.
C5
C6
33 nF
390 pF
Frequency Compensation
High Frequency
Compensation
Output Filter
–
–
Not required for 5 V operation.
C7, C8
L1
Q1
100
μ
F
300
μ
H
–
100
μ
H
–
Crowbar Protection
The SCR must be able to withstand
the peak discharge current of the
output capacitor and the short
circuit current of the device.
7A Schottky or 35 ns t
rr
Diode.
D1
Recirculation Diode
L296 - L296P
15/22
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| L296P | HIGH CURRENT SWITCHINGREGULATORS |
| L296HT | HIGH CURRENT SWITCHINGREGULATORS |
| L298HN | DUAL FULL-BRIDGE DRIVER |
| L298 | DUAL FULL-BRIDGE DRIVER |
| L298N | DUAL FULL-BRIDGE DRIVER |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| L296 | 制造商:STMicroelectronics 功能描述:IC SWITCHING REG 160W 296 |
| L296BK | 功能描述:LAMP MAG 33" ARM W/CLAMP 3D RoHS:否 類別:光學(xué)檢測設(shè)備 >> 燈 - 放大，工作 系列:IM 標(biāo)準(zhǔn)包裝:1 系列:Magna 燈/放大鏡類型:燈，關(guān)節(jié)式 電壓:115V 透鏡樣式/尺寸:- 燈泡:熒光燈，15W（2） 燈臂:45.00"（1143.0mm） 顏色:- 線纜長度:5'（1.5m） 重量:12 磅（5.4kg） 安裝類型:夾架，邊緣 |
| L296BK (Black) | 功能描述:助聽器與助視器 POLARIS 3D MAGNIFIER BLACK RoHS:否 制造商:Luxo Corporation 安裝風(fēng)格:Metal Base 長度:30 in 顏色:Light Gray |
| L296HT | 功能描述:直流/直流開關(guān)調(diào)節(jié)器 5.1 to 40V Step-Down RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關(guān)頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數(shù)量: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5 |
| L296P | 功能描述:直流/直流開關(guān)調(diào)節(jié)器 5.1 to 40V Step-Down RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關(guān)頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數(shù)量: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5 |
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