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參數(shù)資料
| 型號： | LTC3721EUF-1 |
| 廠商： | Linear Integrated Systems |
| 英文描述： | Push-Pull PWM Controller |
| 中文描述： | 推挽式PWM控制器 |
| 文件頁數(shù)： | 4/16頁 |
| 文件大?。?/td> | 192K |
| 代理商： | LTC3721EUF-1 |
LTC3721-1
4
sn37211 37211fs
SSR
FLT
Soft-Start Reset Threshold
Fault Reset Threshold
Measured on SS
Measured on SS
0.7
4.5
0.4
4.2
0.1
3.5
V
V
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
ELECTRICAL CHARACTERISTICS
temperature range, otherwise specifications are at T
A
= 25
°
C. V
CC
= 9.5V unless otherwise noted.
The
●
denotes the specifications which apply over the full operating
Note 1:
Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.
Note 2:
Includes leading edge blanking delay, R
LEB
= 20k, not tested in
production.
Note 3:
FB is driven by a servo loop amplifier to control V
COMP
for these
tests.
Note 4:
Set FB to –0.3V, 2.5V and insure that COMP does not phase invert.
Note 5:
The LTC3721–1 is guaranteed to meet performance specifications
from 0
°
C to 85
°
C. Specifications over the –40
°
C to 85
°
C operating
temperature range are assured by design, characterization and correlation
with statistical process controls.
Note 6:
This IC includes overtemperature protection that is intended to
protect the device during momentary overload conditions. Junction
temperature will exceed 125
°
C when overtemperature protection is active.
Continuous operation above the specified maximum operating junction
temperature may impair device reliability.
V
CC
(V)
0
I
C
μ
A
100
150
8
372311 G01
50
0
2
4
6
10
200
Start-Up I
CC
vs V
CC
V
CC
vs I
SHUNT
Oscillator Frequency vs
Temperature
TYPICAL PERFOR U
I
SHUNT
(mA)
0
V
C
10.00
10.25
40
372311 G02
9.75
9.50
10
20
30
50
10.50
TEMPERATURE (
°
C)
F
240
250
80
372311 G03
230
220
–40
–60
–20
20
0
40
60
100
260
C
T
= 270pF
(T
A
= 25
°
C unless otherwise noted)
Leading Edge Blanking Time
vs R
LEB
V
REF
vs I
REF
V
REF
vs Temperature
R
LEB
(k
)
0
B
350
300
250
200
150
100
50
0
372311 G04
40
100
20
10
30
50
70
90
60
80
I
REF
(mA)
0
V
R
5.05
5.00
4.95
4.90
4.85
4.80
15
25
40
372311 G05
5
10
20
30
35
T
J
= 25
°
C
T
J
= 85
°
C
T
J
= –40
°
C
TEMPERATURE (
°
C)
V
R
4.99
5.00
80
372311 G06
4.98
4.97
–40
–60
–20
20
0
40
60
100
5.01
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LTC3721EUF-1#PBF | 功能描述:IC REG CTRLR ISO PWM CM 16-QFN RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 切換控制器 系列:- 標(biāo)準(zhǔn)包裝:4,500 系列:PowerWise® PWM 型:控制器 輸出數(shù):1 頻率 - 最大:1MHz 占空比:95% 電源電壓:2.8 V ~ 5.5 V 降壓:是 升壓:無 回掃:無 反相:無 倍增器:無 除法器:無 Cuk:無 隔離:無 工作溫度:-40°C ~ 125°C 封裝/外殼:6-WDFN 裸露焊盤 包裝:帶卷 (TR) 配用:LM1771EVAL-ND - BOARD EVALUATION LM1771 其它名稱:LM1771SSDX |
| LTC3721EUF-1#TR | 功能描述:IC REG CTRLR ISO PWM CM 16-QFN RoHS:否 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 切換控制器 系列:- 標(biāo)準(zhǔn)包裝:4,500 系列:PowerWise® PWM 型:控制器 輸出數(shù):1 頻率 - 最大:1MHz 占空比:95% 電源電壓:2.8 V ~ 5.5 V 降壓:是 升壓:無 回掃:無 反相:無 倍增器:無 除法器:無 Cuk:無 隔離:無 工作溫度:-40°C ~ 125°C 封裝/外殼:6-WDFN 裸露焊盤 包裝:帶卷 (TR) 配用:LM1771EVAL-ND - BOARD EVALUATION LM1771 其它名稱:LM1771SSDX |
| LTC3721EUF-1#TRPBF | 功能描述:IC REG CTRLR ISO PWM CM 16-QFN RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 切換控制器 系列:- 標(biāo)準(zhǔn)包裝:4,500 系列:PowerWise® PWM 型:控制器 輸出數(shù):1 頻率 - 最大:1MHz 占空比:95% 電源電壓:2.8 V ~ 5.5 V 降壓:是 升壓:無 回掃:無 反相:無 倍增器:無 除法器:無 Cuk:無 隔離:無 工作溫度:-40°C ~ 125°C 封裝/外殼:6-WDFN 裸露焊盤 包裝:帶卷 (TR) 配用:LM1771EVAL-ND - BOARD EVALUATION LM1771 其它名稱:LM1771SSDX |
| LTC3722EGN-1 | 功能描述:IC REG CTRLR DIV ISO PWM 24SSOP RoHS:否 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 切換控制器 系列:- 標(biāo)準(zhǔn)包裝:4,500 系列:PowerWise® PWM 型:控制器 輸出數(shù):1 頻率 - 最大:1MHz 占空比:95% 電源電壓:2.8 V ~ 5.5 V 降壓:是 升壓:無 回掃:無 反相:無 倍增器:無 除法器:無 Cuk:無 隔離:無 工作溫度:-40°C ~ 125°C 封裝/外殼:6-WDFN 裸露焊盤 包裝:帶卷 (TR) 配用:LM1771EVAL-ND - BOARD EVALUATION LM1771 其它名稱:LM1771SSDX |
| LTC3722EGN-1#PBF | 功能描述:IC REG CTRLR DIV ISO PWM 24SSOP RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 切換控制器 系列:- 標(biāo)準(zhǔn)包裝:2,000 系列:- PWM 型:電流模式 輸出數(shù):1 頻率 - 最大:1MHz 占空比:50% 電源電壓:9 V ~ 10 V 降壓:無 升壓:是 回掃:是 反相:無 倍增器:無 除法器:無 Cuk:無 隔離:無 工作溫度:-40°C ~ 85°C 封裝/外殼:8-TSSOP（0.173"，4.40mm 寬） 包裝:帶卷 (TR) |
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