參數(shù)資料
型號(hào)： LT1680ISW#TRPBF
廠商： LINEAR TECHNOLOGY CORP
元件分類： 穩(wěn)壓器
英文描述： SWITCHING CONTROLLER, 200 kHz SWITCHING FREQ-MAX, PDSO16
封裝： 0.300 INCH, PLASTIC, SOP-16
文件頁數(shù)： 1/16頁
文件大?。?/td> 217K
代理商： LT1680ISW#TRPBF
1
LT1680
High Power DC/DC
Step-Up Controller
s
High Voltage: Operation Up to 60V
s
High Current: N-Channel Drive Handles Up to
10,000pF Gate Capacitance
s
Programmable Average Current Limiting
s
5V Reference Output with 10mA External
Loading Capability
s
Fixed Frequency Current Mode Operation
s
Oscillator Synchronizable Up to 200kHz
s
Undervoltage Lockout with Hysteresis
s
Programmable Start Inhibit for Power Supply
Sequencing and Protection
s
User Adjustable Slope Compensation
The LT
1680 is a high power, current mode switching
power supply controller optimized for boost topologies.
The IC drives an N-channel MOSFET switch for DC/DC
converter applications up to 60V input. A high current gate
drive output handles up to 10,000pF gate capacitance,
enabling the construction of high power DC/DC convert-
ers. 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.
s
High Power Single Board Systems
s
Distributed Power Converters
s
Industrial Control Systems
s
Lead-Acid Battery Back-Up Systems
s
Automotive and Heavy Equipment
, LTC and LT are registered trademarks of Linear Technology Corporation.
12V to 48V, 250W Boost Converter
Efficiency vs Output Power
FEATURES
DESCRIPTIO
U
APPLICATIO S
U
TYPICAL APPLICATIO
U
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
SL/ADJ
CT
IAVG
SS
VC
SGND
VFB
VREF
5VREF
SYNC
12VIN
GATE
PGND
RUN/SHDN
SENSE –
SENSE +
+
LT1680
MBR0520
RCT
15k
R7
2k
RVC 4.7k
CCT
1nF
C3 220pF
CVC 4.7nF
C4 0.22
F
C2
1
F
C11 1nF
1680 TA01
C6 0.1
F
R6
75k
R9
100k
C12
1
F
M1
IRFZ44
×3
D1
MBR20100CT
×2
+
CIN
680
F
25V
×4
COUT
680
F
63V
×3
VOUT
48V
5.2A
L1
25
H
RSENSE
0.005
12VIN
10V TO 15V
24A (DC)
+
L1: Kool M
, 18T #14 ON 77314-A7
Kool M
IS A REGISTERED TRADEMARK OF MAGNETICS, INC.
OUTPUT POWER (W)
0
EFFICIENCY
(%)
90
95
100
200
1680 TA02
85
80
75
50
100
150
250
VOUT = 48V
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LT1681ESW#PBF 功能描述:IC SYNCHRONOUS FWRD CTRLR 20SOIC RoHS:是 類別:集成電路 (IC) >> PMIC - 電源控制器，監(jiān)視器 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:2,500 系列:- 應(yīng)用:多相控制器 輸入電壓:- 電源電壓:9 V ~ 14 V 電流 - 電源:- 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:40-WFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:40-TQFN-EP（5x5） 包裝:帶卷 (TR)
LT1681ESW#TR 功能描述:IC SYNCHRONOUS FWRD CTRLR 20SOIC RoHS:否 類別:集成電路 (IC) >> PMIC - 電源控制器，監(jiān)視器 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:2,500 系列:- 應(yīng)用:多相控制器 輸入電壓:- 電源電壓:9 V ~ 14 V 電流 - 電源:- 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:40-WFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:40-TQFN-EP（5x5） 包裝:帶卷 (TR)
LT1681ESW#TRPBF 功能描述:IC SYNCHRONOUS FWRD CTRLR 20SOIC RoHS:是 類別:集成電路 (IC) >> PMIC - 電源控制器，監(jiān)視器 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:2,500 系列:- 應(yīng)用:多相控制器 輸入電壓:- 電源電壓:9 V ~ 14 V 電流 - 電源:- 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:40-WFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:40-TQFN-EP（5x5） 包裝:帶卷 (TR)
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