- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄377710 > LT1621IGN (LINEAR TECHNOLOGY CORP) Rail-to-Rail Current Sense Amplifier PDF資料下載
參數(shù)資料
| 型號： | LT1621IGN |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類： | 模擬信號調(diào)理 |
| 英文描述： | Rail-to-Rail Current Sense Amplifier |
| 中文描述： | SPECIALTY ANALOG CIRCUIT, PDSO16 |
| 封裝： | 0.150 INCH, PLASTIC, SSOP-16 |
| 文件頁數(shù)： | 1/12頁 |
| 文件大?。?/td> | 282K |
| 代理商： | LT1621IGN |
1
LT1620/LT1621
Rail-to-Rail Current
Sense Amplifier
S
FEATURE
I
Accurate Output Current Programming
I
Usable in Charging Applications Up to 32V Output
I
Programmable Load Current Monitor for End-of-
Charging-Cycle Notification (16-Pin Version)
I
Dual Function IC (LT1621) Allows Convenient
Integration of Load and Input Current Sensing
I
Level-Shifted Current Sense Output for Current Mode
PWM Controllers
I
Can be Used for NiCd, NiMH, Lead-Acid and Lithium-
Ion Battery Charging
I
Greater than 96% Efficiency Possible in Charger
Applications
I
High Output Currents Possible: > 10A
Easily Obtained
D
The LT
1620 simplifies the design of high performance,
controlled current battery charging circuits when used in
conjunction with a current mode PWM controller IC.
The LT1620 regulates average output current independent
of input and output voltage variations. Output current can
be easily adjusted via a programming voltage applied to
the LT1620’s PROG pin.
Most current mode PWM controllers have limited output
voltage range because of common mode limitations on the
current sense inputs. The LT1620 overcomes this restric-
tion by providing a level-shifted current sense signal,
allowing a 0V to 32V output voltage range.
The 16-pin version of the LT1620 contains a program-
mable low charging current flag output. This output flag
can be used to signal when a Li-Ion battery charging cycle
is nearing completion.
The LT1621 incorporates two fully independent current
control circuits for dual loop applications.
U
ESCRIPTIO
U
A
O
PPLICATI
TYPICAL
, LTC and LT are registered trademarks of Linear Technology Corporation.
BATTERY CHARGE CURRENT (A)
0
E
90
95
100
4
1620/21 TA02
85
80
75
1
2
3
5
V
IN
= 24V
V
BATT
= 16V
V
BATT
= 12V
V
BATT
= 6V
Efficiency
Figure 1. Low Dropout, High Current Li-Ion Battery Charger
FB
I
TH
SENSE
–
LTC1435
SYNCHRONOUS
BUCK
REGULATOR
AVG
SENSE
IN
–
LT1620MS8
V
CC
1
2
8
7
6
3
4
V
BATT
I
BATT
TO 4A
V
IN
(V
BATT
+ 0.5V) TO 32V
+
LT1620/21 F01
IN
+
I
OUT
PROG
5
SIMPLIFIED SCHEMATIC. SEE FIGURE 2 FOR COMPLETE SCHEMATIC
0.1
μ
F
15.75k
1%
3k
1%
0.1
μ
F
INTV
CC
V
IN
SW
27
μ
H
0.025
22
μ
F
35V
×
2
1.43M
0.1%
110k
0.1%
22
μ
F
35V
+
U
S
A
I
High Current Battery Chargers
I
High Output Voltage DC/DC Converters
I
Constant Current Sources
I
Overcurrent Fault Protectors
O
PPLICATI
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LT1620CGN | Rail-to-Rail Current Sense Amplifier |
| LT1620IS8 | Rail-to-Rail Current Sense Amplifier |
| LT1621 | Rail-to-Rail Current Sense Amplifier |
| LT1621CGN | Rail-to-Rail Current Sense Amplifier |
| LT1620CMS8 | Rail-to-Rail Current Sense Amplifier |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LT1621IGN#PBF | 功能描述:IC AMP R-R CURRENT SENSE 16-SSOP RoHS:是 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標準包裝:73 系列:Over-The-Top® 放大器類型:通用 電路數(shù):4 輸出類型:滿擺幅 轉(zhuǎn)換速率:0.07 V/µs 增益帶寬積:200kHz -3db帶寬:- 電流 - 輸入偏壓:1nA 電壓 - 輸入偏移:285µV 電流 - 電源:50µA 電流 - 輸出 / 通道:25mA 電壓 - 電源，單路/雙路(±):2 V ~ 44 V，±1 V ~ 22 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:16-WFDFN 裸露焊盤 供應(yīng)商設(shè)備封裝:16-DFN-EP（5x3） 包裝:管件 |
| LT1621IGN#TR | 功能描述:IC AMP CURR SENSE RR DUAL 16SSOP RoHS:否 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標準包裝:73 系列:Over-The-Top® 放大器類型:通用 電路數(shù):4 輸出類型:滿擺幅 轉(zhuǎn)換速率:0.07 V/µs 增益帶寬積:200kHz -3db帶寬:- 電流 - 輸入偏壓:1nA 電壓 - 輸入偏移:285µV 電流 - 電源:50µA 電流 - 輸出 / 通道:25mA 電壓 - 電源，單路/雙路(±):2 V ~ 44 V，±1 V ~ 22 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:16-WFDFN 裸露焊盤 供應(yīng)商設(shè)備封裝:16-DFN-EP（5x3） 包裝:管件 |
| LT1621IGN#TRPBF | 功能描述:IC AMP R-R CURRENT SENSE 16-SSOP RoHS:是 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標準包裝:73 系列:Over-The-Top® 放大器類型:通用 電路數(shù):4 輸出類型:滿擺幅 轉(zhuǎn)換速率:0.07 V/µs 增益帶寬積:200kHz -3db帶寬:- 電流 - 輸入偏壓:1nA 電壓 - 輸入偏移:285µV 電流 - 電源:50µA 電流 - 輸出 / 通道:25mA 電壓 - 電源，單路/雙路(±):2 V ~ 44 V，±1 V ~ 22 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:16-WFDFN 裸露焊盤 供應(yīng)商設(shè)備封裝:16-DFN-EP（5x3） 包裝:管件 |
| LT1624IS8 | 制造商:Linear Technology 功能描述: |
| LT-1625S | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:T1/CEPT/ISDN-PRI TRANSFORMER |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。