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參數(shù)資料
| 型號： | LT3782IFE |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 4 A SWITCHING CONTROLLER, 533 kHz SWITCHING FREQ-MAX, PDSO28 |
| 封裝： | 4.40 MM, PLASTIC, TSSOP-28 |
| 文件頁數(shù)： | 14/20頁 |
| 文件大小： | 223K |
| 代理商： | LT3782IFE |
LT3782
3
3782fg
The ● denotes the specications which apply over the full operating junction
temperature range, otherwise specications are at TA = 25°C. VCC = 13V, RSET = 80k, no load on any outputs, unless otherwise noted.
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Overall
Supply Voltage (VCC)
l
640
V
Supply Current (IVCC)VC ≤ 0.5V (Switching Off), VCC ≤ 40V
11
16
mA
Shutdown
RUN Threshold
l
2.3
2.45
2.6
V
RUN Threshold Hysteresis
80
mV
Supply Current in Shutdown
1V ≤ RUN ≤ VREF, VCC ≤ 30V
RUN ≤ 0.3V, VCC ≤ 30V
0.4
40
0.65
90
mA
μA
RUN Pin Input Current
VRUN = 2.3V
l
–0.5
–2
μA
Voltage Amplier gm
Reference Voltage (VREF)
l
2.42
2.4
2.44
2.464
2.488
V
Transconductance
VVC = 1V, ΔIVC = ±2μA
l
200
260
370
μmho
Input Current IFB
VFB = VREF
l
0.2
0.6
μA
VC High
IVC = 0
1.5
V
VC Low
IVC = 0
0.35
0.4
V
Source Current IVC
VVC = 0.7V – 1V, VFB = VREF – 100mV
8
11
14
μA
Sink Current IVC
VVC = 0.7V – 1V, VFB = VREF + 100mV
13
20
28
μA
VC Threshold for Switching Off (BGATE1, BGATE2 Low)
l
0.3
V
Soft-Start Current ISS
VSS = 0.1V – 2.8V
6
10
15
μA
Current Amplier CA1, CA2
Voltage Gain ΔVC /ΔVSENSE
4
Current Limit (VSENSE1+ – VSENSE1–) (VSENSE2+ – VSENSE2–)
506280
mV
Input Current (ISENSE1+, ISENSE1–, ISENSE2+, ISENSE2–)ΔVSENSE = 0V
60
μA
Oscillator
Switching Frequency
RSET = 130k
RSET = 80k
RSET = 40k
l
130
212
386
154
250
465
177
288
533
kHz
Synchronization Pulse Threshold on SYNC Pin
Rising Edge VSYNC
0.8
1.2
2
V
Synchronization Frequency Range
(Note: Operation Switching Frequency Equals
Half of the Synchronization Frequency)
RSET = 130k
RSET = 80k
RSET = 40k
180
290
550
240
392
715
kHz
VRSET
RSET = 80k
2.3
V
Maximum Duty Cycle
VFB = VREF – 25mV, RSET > 80k
RSET = 40k
l
90
83
94
90
%
Duty Cycle Limit
RSET = 80k, VDCL ≤ 0.3V
VDCL = 1.2V
VDCL = VRSET
50
75
Max Duty Cycle
%
DCL Pin Input Current
VDCL ≤ 0.3V
l
–0.1
–0.3
μA
ELECTRICAL CHARACTERISTICS
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LT3782IFE#PBF | 功能描述:IC REG CTRLR BST PWM CM 28-SSOP 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 |
| LT3782IFE#TRPBF | 功能描述:IC REG CTRLR BST PWM CM 28-SSOP 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 |
| LT3782IFE-PBF | 制造商:LINER 制造商全稱:Linear Technology 功能描述:2-Phase Step-UP DC/DC Controller |
| LT3782IFE-TR | 制造商:LINER 制造商全稱:Linear Technology 功能描述:2-Phase Step-UP DC/DC Controller |
| LT3782IFE-TRPBF | 制造商:LINER 制造商全稱:Linear Technology 功能描述:2-Phase Step-UP DC/DC Controller |
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