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參數(shù)資料
| 型號： | L6997 |
| 廠商： | 意法半導(dǎo)體 |
| 英文描述： | STEP DOWN CONTROLLER FOR LOW VOLTAGE OPERATIONS |
| 中文描述： | 降壓控制器低電壓運(yùn)作 |
| 文件頁數(shù)： | 2/23頁 |
| 文件大?。?/td> | 291K |
| 代理商： | L6997 |
L6997
2/23
ABSOLUTE MAXIMUM RATINGS
THERMAL DATA
PIN CONNECTION
(Top View)
Symbol
V
CC
V
DR
Parameter
Value
-0.3 to 6
-0.3 to 6
-0.3 to 6
-0.3 to 36
-0.3-to 30
-0.3 to V
DR
+0.3
-0.3 to V
CC
+0.3
Unit
V
V
V
V
V
V
V
V
CC
to GND
V
DR
to GND
HGATE and BOOT, to PHASE
HGATE and BOOT, to PGND
PHASE
LGATE to PGND
ILIM, VFB, VSENSE, NOSKIP SHDN, PGOOD, OVP VREF, INT,
GND
SENSE
to GND
Power dissipation at T
amb
= 25°C
Storage temperature range
V
PHASE
P
tot
T
stg
1
W
-40 to 150
°C
Symbol
Parameter
Value
Unit
R
th j-amb
Thermal Resistance Junction to Ambient
125
°C/W
T
j
Junction operating temperature range
-40 to 125
°C
PIN FUNCTION
N°
1
2
Name
NOSKIP
GNDSE
NSE
INT
Description
Connect to V
CC
to force continuous conduction mode and sink mode.
Remote ground sensing pin
3
Integrator output. Short this pin to VFB pin and connect it via a capacitor to V
OUT
to insert the
integrator in the control loop. If the integrator is not used, short this pin to VREF.
This pin must be connected to the remote output voltage to detect overvoltage and undervoltage
conditions and to provide integrator feedback input.
IC Supply Voltage.
Signal ground
0.6V voltage reference. Connect max. a 10nF ceramic capacitor between this pin and ground.
This pin is capable to source or sink up to 250uA
4
VSENS
E
V
CC
GND
VREF
5
6
7
GNDSENSE
INT
OVP
SHDN
ILIM
OSC
VCC
NOSKIP
PGOOD
LGATE
PGND
VDR
PHASE
HGATE
BOOT
1
3
2
4
5
6
7
8
9
18
17
16
15
14
13
19
20
10
SS
GND
11
12
VREF
VFB
TSSOP20
VSENSE
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| L6997D | STEP DOWN CONTROLLER FOR LOW VOLTAGE OPERATIONS |
| L6997DTR | STEP DOWN CONTROLLER FOR LOW VOLTAGE OPERATIONS |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| L6997-28 | 制造商:Johanson Manufacturing 功能描述:TUNING ELEMENT |
| L6997-5 | 制造商:Johanson Manufacturing 功能描述:TUNING ELEMENT; Accessory Type:Tuning Element; For Use With:High Quality Variable Reactance Tuning Microwave Cavities, Filters & other Resonant Structures |
| L6997-9 | 制造商:Johanson Manufacturing 功能描述:TUNING ELEMENT |
| L6997D | 功能描述:DC/DC 開關(guān)控制器 Adjustable Step-Down RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK |
| L6997DTR | 功能描述:DC/DC 開關(guān)控制器 Adjustable Step-Down RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK |
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