參數(shù)資料
型號(hào)： LT3782AIUFD
廠商： LINEAR TECHNOLOGY CORP
元件分類： 穩(wěn)壓器
英文描述： SWITCHING CONTROLLER, PQCC28
封裝： 4 X 5 MM, PLASTIC, MO-220, QFN-28
文件頁數(shù)： 1/20頁
文件大?。?/td> 233K
代理商： LT3782AIUFD
LT3782A
1
3782af
TYPICAL APPLICATION
FEATURES
APPLICATIONS
DESCRIPTION
2-Phase Step-Up
DC/DC Controller
The LT3782A is a current mode 2-phase step-up DC/DC
converter controller. Its high switching frequency (up to
500kHz) and 2-phase operation reduce system ltering
capacitance and inductance requirements.
With 10V gate drive (VCC ≥13V) and 4A peak drive current,
the LT3782A can drive most industrial grade high power
MOSFETs with high efciency. For synchronous applica-
tions, the LT3782A provides synchronous gate signals
with programmable falling edge delay to avoid cross
conduction when using external MOSFET drivers. Other
features include programmable undervoltage lockout,
soft-start, current limit, duty cycle clamp (50% or higher)
and slope compensation. The LT3782A is identical to the
LT3782 except that the LT3782A has a tighter current sense
mismatch tolerance.
The LT3782A is available in thermally enhanced 28-lead
TSSOP and 4mm × 5mm QFN packages.
n Industrial Equipment
n Telecom Infrastructure
n Interleaved Isolated Power Supply
n 2-Phase Operation Reduces Required Input and
Output Capacitance
n Programmable Switching Frequency:
150kHz to 500kHz
n 6V to 40V Input Range
n 10V Gate Drive with VCC ≥13V
n High Current Gate Drive (4A)
n Programmable Soft-Start and Current Limit
n Programmable Slope Compensation for
High Noise Immunity
n MOSFET Gate Signals with Programmable
Falling Edge Delay for External Synchronous
Drivers
n Programmable Undervoltage Lockout
n Programmable Duty Cycle Clamp (50% or Higher)
n Thermally Enhanced 28-Lead TSSOP and 4mm × 5mm
QFN Packages
50V 4A Boost Converter
3782A TA01
6.8nF
13k
0.1μF
10nF
10μF
×2
80k
59k
0.004Ω
1μF
274k
825k
220μF
VOUT
50V, 4A
VIN
10V TO 36V
+
2μF
20μH
0.004Ω
LT3782A
VCC
RUN
SLOPE
DELAY
DCL
RSET
SS
VC
GBIAS2
GBIAS
BGATE1
VEE1
BGATE2
VEE2
SENSE1+
SENSE1–
SENSE2+
SENSE2–
FB
GND
GBIAS1
10Ω
10nF
10Ω
475k
D1
D2
100pF
24.9k
10μF
×2
Efciency and Power Loss
vs Load Current
IOUT (A)
0
EFFICIENCY
(%)
4
3782A TA01b
POWER
LOSS
(W)
18
15
12
9
6
3
0
1
2
3
5
VIN = 12V
VIN = 24V
EFFICIENCY
POWER LOSS
97
93
95
91
89
87
85
, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.
All other trademarks are the property of their respective owners.
Protected by U.S. Patents, including 6144194.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LT3782AIUFD#PBF 功能描述:IC REG CTRLR BST PWM CM 28-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
LT3782AIUFD#TRPBF 功能描述:IC REG CTRLR BST PWM CM 28-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
LT3782AIUFD-PB 制造商:LINER 制造商全稱:Linear Technology 功能描述:2-Phase Step-Up DC/DC Controller
LT3782AIUFD-TR 制造商:LINER 制造商全稱:Linear Technology 功能描述:2-Phase Step-Up DC/DC Controller
LT3782EFE 制造商:Linear Technology 功能描述:DC DC Cntrlr Single-OUT Synchronous Step Up Controller 6V to 40V Input 28-Pin TSSOP EP
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