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参数资料
| 型号： | LT1680CN |
| 厂商： | LINEAR TECHNOLOGY CORP |
| 元件分类： | 稳压器 |
| 英文描述： | High Power DC/DC Step-Up Controller |
| 中文描述： | SWITCHING CONTROLLER, 200 kHz SWITCHING FREQ-MAX, PDIP16 |
| 封装： | 0.300 INCH, PLASTIC, DIP-16 |
| 文件页数： | 1/16页 |
| 文件大小： | 322K |
| 代理商： | LT1680CN |
1
LT1680
High Power DC/DC
Step-Up Controller
I
High Voltage: Operation Up to 60V Max
I
High Current: N-Channel Drive Handles Up to
10,000pF Gate Capacitance
I
Programmable Average Current Limiting
I
5V Reference Output with 10mA External
Loading Capability
I
Fixed Frequency Current Mode Operation
I
Oscillator Synchronizable Up to 200kHz
I
Undervoltage Lockout with Hysteresis
I
Programmable Start Inhibit for Power Supply
Sequencing and Protection
I
User Adjustable Slope Compensation
FEATURES
DESCRIPTIO
N
U
The LT
1680 is a high power, current mode switching
power supply controller optimized for boost topologies.
The IC drives N-channel MOSFET switches for DC/DC
converters in applications up to 60V input. A high current
gate drive output handles up to 10,000pF gate capaci-
tance, enabling the construction of high power DC/DC
converters. Current sense common mode range up to 60V
allows current sensing to be referenced to the input
supply, eliminating the need for sense blanking circuits.
The LT1680 incorporates programmable average current
limiting allowing accurate limiting of DC current in the
magnetics, independent of ripple current . User adjustable
slope compensation provides stable operation at duty
cycles up to 90%.
The LT1680 operating frequency is programmable and
can be synchronized up to 200kHz. Minimum off-time
operation provides switch protection. The IC also incorpo-
rates a soft start feature that is gated by both shutdown
and undervoltage lockout conditions.
, LTC and LT are registered trademarks of Linear Technology Corporation.
APPLICATIO
S
U
I
High Power Single Board Systems
I
Distributed Power Converters
I
Industrial Control Systems
I
Lead-Acid Battery Back-Up Systems
I
Automotive and Heavy Equipment
TYPICAL APPLICATIO
N
U
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
SL/ADJ
C
T
I
AVG
SS
V
C
SGND
V
FB
V
REF
5V
REF
SYNC
12V
IN
GATE
PGND
RUN/SHDN
SENSE
–
SENSE
+
+
LT1680
MBR0520
R
CT
15k
R7
2k
R
VC
4.7k
1N914
C
CT
1nF
C3 2.2nF
C
VC
4.7nF
C4 0.22
μ
F
C2
1
μ
F
C11 1nF
1680 TA01
C6 0.1
μ
F
R6
75k
R9
100k
C12
1
μ
F
M1
IRFZ44
×
3
D1
MBR20100CT
×
2
+
C
IN
680
μ
F
25V
×
4
C
OUT
680
μ
F
63V
×
3
V
48V
5.2A
L1
25
μ
H
R
0.005
12V
10V TO 15V
24A (DC)
+
L1: Kool M
μ
, 18T #14 ON 77314-A7
Kool M
μ
IS A REGISTERED TRADEMARK OF MAGNETICS, INC.
12V to 48V, 250W Boost
OUTPUT POWER (W)
0
E
90
95
100
200
1680 TA02
85
80
75
50
100
150
250
V
OUT
= 48V
Efficiency vs Output Power
相关PDF资料 |
PDF描述 |
|---|---|
| LT1680CSW | High Power DC/DC Step-Up Controller |
| LT1680I | High Power DC/DC Step-Up Controller |
| LT1680IN | High Power DC/DC Step-Up Controller |
| LT1680ISW | High Power DC/DC Step-Up Controller |
| LT1680 | High Power DC/DC Step-Up Controller(大功率，DC/DC步升转换器) |
相关代理商/技术参数 |
参数描述 |
|---|---|
| LT1680CN#PBF | 功能描述:IC REG CTRLR BST PWM CM 16-DIP RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 切换控制器 系列:- 特色产品:LM3753/54 Scalable 2-Phase Synchronous Buck Controllers 标准包装:1 系列:PowerWise® PWM 型:电压模式 输出数:1 频率 - 最大:1MHz 占空比:81% 电源电压:4.5 V ~ 18 V 降压:是 升压:无 回扫:无 反相:无 倍增器:无 除法器:无 Cuk:无 隔离:无 工作温度:-5°C ~ 125°C 封装/外壳:32-WFQFN 裸露焊盘 包装:Digi-Reel® 产品目录页面:1303 (CN2011-ZH PDF) 其它名称:LM3754SQDKR |
| LT1680CSW | 功能描述:IC REG CTRLR BST PWM CM 16-SOIC RoHS:否 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 切换控制器 系列:- 标准包装:2,500 系列:- PWM 型:电流模式 输出数:1 频率 - 最大:500kHz 占空比:96% 电源电压:4 V ~ 36 V 降压:无 升压:是 回扫:无 反相:无 倍增器:无 除法器:无 Cuk:无 隔离:无 工作温度:-40°C ~ 125°C 封装/外壳:24-WQFN 裸露焊盘 包装:带卷 (TR) |
| LT1680CSW#PBF | 功能描述:IC REG CTRLR BST PWM CM 16-SOIC RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 切换控制器 系列:- 特色产品:LM3753/54 Scalable 2-Phase Synchronous Buck Controllers 标准包装:1 系列:PowerWise® PWM 型:电压模式 输出数:1 频率 - 最大:1MHz 占空比:81% 电源电压:4.5 V ~ 18 V 降压:是 升压:无 回扫:无 反相:无 倍增器:无 除法器:无 Cuk:无 隔离:无 工作温度:-5°C ~ 125°C 封装/外壳:32-WFQFN 裸露焊盘 包装:Digi-Reel® 产品目录页面:1303 (CN2011-ZH PDF) 其它名称:LM3754SQDKR |
| LT1680CSW#TR | 功能描述:IC REG CTRLR BST PWM CM 16-SOIC RoHS:否 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 切换控制器 系列:- 标准包装:2,500 系列:- PWM 型:电流模式 输出数:1 频率 - 最大:500kHz 占空比:96% 电源电压:4 V ~ 36 V 降压:无 升压:是 回扫:无 反相:无 倍增器:无 除法器:无 Cuk:无 隔离:无 工作温度:-40°C ~ 125°C 封装/外壳:24-WQFN 裸露焊盘 包装:带卷 (TR) |
| LT1680CSW#TRPBF | 功能描述:IC REG CTRLR BST PWM CM 16-SOIC RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 切换控制器 系列:- 标准包装:2,500 系列:- PWM 型:电流模式 输出数:1 频率 - 最大:500kHz 占空比:96% 电源电压:4 V ~ 36 V 降压:无 升压:是 回扫:无 反相:无 倍增器:无 除法器:无 Cuk:无 隔离:无 工作温度:-40°C ~ 125°C 封装/外壳:24-WQFN 裸露焊盘 包装:带卷 (TR) |
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