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TPS54240DGQR 参数 Datasheet PDF下载

TPS54240DGQR图片预览
型号: TPS54240DGQR
PDF下载: 下载PDF文件 查看货源
内容描述: 3.5V至42V降压SWIFT ™ DC / DC具有Eco-Mode ™转换器 [3.5V to 42V STEP DOWN SWIFT™ DC/DC CONVERTER WITH ECO-MODE™]
分类和应用: 转换器稳压器开关式稳压器或控制器电源电路开关式控制器光电二极管PC
文件页数/大小: 44 页 / 1465 K
品牌: TI [ TEXAS INSTRUMENTS ]
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SLVSAA6 – APRIL 2010
www.ti.com
TYPICAL CHARACTERISTICS (continued)
EA TRANSCONDUCTANCE DURING SLOW START vs
JUNCTION TEMPERATURE
120
V
I
= 12 V
450
100
400
EA TRANSCONDUCTANCE vs JUNCTION TEMPERATURE
500
V
I
= 12 V
gm -
m
A/V
gm -
m
A/V
80
350
60
300
40
250
20
-50
-25
0
25
50
75
100
T
J
- Junction Temperature - °C
125
150
200
-50
-25
0
25
50
75
100
125
150
T
J
- Junction Temperature - °C
Figure 7.
EN PIN VOLTAGE vs JUNCTION TEMPERATURE
1.40
V
I
= 12 V
-3.5
Figure 8.
EN PIN CURRENT vs JUNCTION TEMPERATURE
-3.25
V
I
= 12 V,
V
I(EN)
= Threshold +50 mV
EN - Threshold - V
1.30
I
(EN)
-
m
A
1.20
1.10
-50
75
-3.75
-4
-25
0
25
50
100
125
150
-4.25
-50
-25
0
25
50
75
100
125
150
T
J
- Junction Temperature - °C
T
J
- Junction Temperature - °C
Figure 9.
EN PIN CURRENT vs JUNCTION TEMPERATURE
-0.8
V
I
= 12 V,
V
I(EN)
= Threshold -50 mV
-0.85
-1.5
Figure 10.
SS/TR CHARGE CURRENT vs JUNCTION TEMPERATURE
-1
V
I
= 12 V
-0.9
I
(SS/TR)
-
m
A
-25
0
25
50
75
100
T
J
- Junction Temperature - °C
125
150
I
(EN)
-
m
A
-2
-0.95
-2.5
-1
-50
-3
-50
-25
0
25
50
75
100
T
J
- Junction Temperature - °C
125
150
Figure 11.
Figure 12.
8
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