參數(shù)資料
型號： L6997S
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)： 2/30頁
文件大小： 515K
代理商： L6997S
L6997S
2/30
Table 2. Absolute Maximum Ratings
Table 3. Thermal Data
Figure 3. Pin Connection (Top View)
Symbol
V
CC
V
DR
Parameter
Value
-0.3 to 6
-0.3 to 6
Unit
V
V
V
CC
to GND
V
DR
to GND
HGATE and BOOT, to PHASE
HGATE and BOOT, to PGND
PHASE
-0.3 to 6
-0.3 to 42
-0.3-to 36
V
V
V
V
PHASE
LGATE to PGND
ILIM, VFB, VSENSE, NOSKIP, SHDN, PGOOD, OVP, VREF,
INT, GND
SENSE
to GND
Maximum Withstanding Voltage Range
Test Condition:CDF-AEC-Q100-002 “Human Body Model”
Accepatance Criteria: “Normal Performance”
-0.3 to V
DR
+0.3
-0.3 to V
CC
+0.3
V
V
BOOT, HGATE
and PHASE
PINS
OTHER PINS
P
tot
T
stg
±750
V
±2000
1
V
W
Power dissipation at T
amb
= 25°C
Storage temperature range
-40 to 150
°C
Symbol
R
th j-amb
T
j
Parameter
Value
125
Unit
°C/W
Thermal Resistance Junction to Ambient
Junction operating temperature range
-40 to 125
°C
Table 4. Pin Function
N°
1
2
3
Name
NOSKIP
GNDSENSE
INT
Description
Connect to V
CC
to force continuous conduction mode and sink mode.
Remote ground sensing pin
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.
4
VSENSE
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
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
L6997STR 功能描述:DC/DC 開關(guān)控制器 3.0 to 5.5V Step-Dwn 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
L6998-0 制造商:Johanson Manufacturing 功能描述:TUNING ELEMENT
L6998-1 制造商:Johanson Manufacturing 功能描述:TUNING ELEMENT
L6998-5 制造商:Johanson Manufacturing 功能描述:TUNING ELEMENT
L6998-6 制造商:Johanson Manufacturing 功能描述:TUNING ELEMENT
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