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参数资料
| 型号： | L6996DTR |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 稳压器 |
| 英文描述： | SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, PDSO24 |
| 封装： | MO-153AD, TSSOP-24 |
| 文件页数： | 23/26页 |
| 文件大小： | 272K |
| 代理商： | L6996DTR |
L6996
6/26
Figure 1. Functional & Block Diagram
configuration
DAC
Reference
chain
V
+
-
V
IN
5V
OUT
V
+
-
mode
transition
dynamic
CS-
CS+
VID4:0
delay
Toff
min
one-shot
80
us
detection
transition
dynamic
CS-
VID4:0
5
bit
DAC
VPROG
OSC
FB+
FB-
PGND
LGATE
VDR
PHASE
HGATE
BOOT
GND
VCC
OVP
PGOOD
SHDN
SS
ILIM
negative
current
limit
CS-
CS+
1.416
-
1.236V
bandgap
OSC
0.05
comparator
LS
and
HS
anti-cross-conduction
comparators
comp
V(LGATE)<0.5V
comp
V(PHASE)<0.2V
HS
control
pwm
comparator
positive
current
limit
-
+
-
+
undervoltage
comparator
OSC
one-shot
+
0.05
ILIM
Ton
LS
control
dynamic
transition
control
HS
driver
dynamic
overvoltage
comparator
transition
-
5
uA
Ton=
Kosc
V(CS-)/V(OSC)
+
VCC
level
shifter
LS
driver
5
uA
PHASE
0.6
VPROG
+
mode
CS-
Ton=
Kosc
V(CS-)/V(OSC)
Ton
min
one-shot
+
-
zero-cross
comparator
pgood
comparators
soft-start
+
-
1.075
VPROG
0.925
VPROG
power
management
control
1.12
VPROG
CS-
R
S
IC
enable
R
Q
S
R
S
Q
S
R
Q
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相关代理商/技术参数 |
参数描述 |
|---|---|
| L6997 | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:STEP DOWN CONTROLLER FOR LOW VOLTAGE OPERATIONS |
| 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 开关控制器 Adjustable Step-Down RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:CPAK |
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