参数资料
型号: LT3751IUFD#TRPBF
厂商: LINEAR TECHNOLOGY CORP
元件分类: 电源管理
英文描述: 1-CHANNEL POWER SUPPLY SUPPORT CKT, PQCC20
封装: 4 X 5 MM, LEAD FREE, PLASTIC, QFN-20
文件页数: 30/34页
文件大小: 403K
代理商: LT3751IUFD#TRPBF
LT3751
5
3751fb
TYPICAL PERFORMANCE CHARACTERISTICS
VCC Pin Current
VTRANS Supply Current
CHARGE Pin Current
CHARGE Pin Minimum
Enable Voltage
CHARGE Pin Maximum
Disable Voltage
DONE, FAULT Pin Voltage Low
VOUT Comparator Trip Voltage
UVLO1 Trip Voltage
UVLO1 Trip Current
PIN VOLTAGE (V)
0
PIN
CURRENT
(mA)
7
6
4
2
5
3
1
0
16
820
3751 G01
24
12
4
–40°C
25°C
125°C
PIN VOLTAGE (V)
0
I V
T
RANS
CURRENT
(μA)
150
145
135
120
125
140
130
115
110
40
20
50
3751 G02
60
30
10
–40°C
25°C
125°C
RVTRANS, RVOUT, RDCM = 25k
VCC, CHARGE = 5V
IVTRANS = IRVTRANS + IRVOUT + IRDCM
PIN VOLTAGE (V)
0
CURRENT
(μA)
450
400
300
150
200
350
250
100
50
0
16
820
3751 G03
24
12
4
–40°C
25°C
125°C
–40
CHARGE
PIN
VOL
TAGE
(V)
1.3
1.2
1.0
0.7
0.8
1.1
0.9
0.6
40
60
0
80
100
3751 G04
120
20
TEMPERATURE (°C)
–20
VCC = 5V
VCC = 12V
VCC = 24V
–40
CHARGE
PIN
VOL
TAGE
(V)
1.2
1.1
0.9
0.6
0.7
1.0
0.8
0.5
40
60
0
80
100
3751 G05
120
20
TEMPERATURE (°C)
–20
VCC = 5V
VCC = 12V
VCC = 24V
–40
PIN
LOW
VOL
TAGE
(mV)
400
350
200
250
50
100
300
150
0
40
60
0
80
100
3751 G06
120
20
TEMPERATURE (°C)
–20
1mA SINK
100μA SINK
10μA SINK
–40
V
DRAIN
V
TRANS
VOL
TAGE
(V)
30.8
30.4
29.2
29.6
30.0
28.8
28.4
40
60
0
80
100
3751 G07
120
20
TEMPERATURE (°C)
–20
RVTRANS, RVOUT = 25.5k (RTOL = 1%)
RBG = 833Ω
VTRANS = 5V
VTRANS = 12V
VTRANS = 24V
VTRANS = 48V
VTRANS = 72V
–40
UVLO1
PIN
VOL
TAGE
(V)
1.236
1.234
1.228
1.230
1.232
1.226
1.224
40
60
0
80
100
3751 G08
120
20
TEMPERATURE (°C)
–20
VCC = 5V
VCC = 12V
VCC = 24V
–40
UVLO1
PIN
CURRENT
(μA)
50.5
50.4
49.9
50.2
50.1
50.0
50.3
49.8
49.7
40
60
0
80
100
3751 G09
120
20
TEMPERATURE (°C)
–20
VCC = 5V
VCC = 12V
VCC = 24V
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