LTC3719 데이터 시트보기 (PDF) - Linear Technology
부품명
상세내역
제조사
LTC3719 Datasheet PDF : 32 Pages
| |||
TYPICAL PERFOR A CE CHARACTERISTICS
LTC3719
Load Step (Figure 12)
VIN = 12V, VOUT = 1.25V
VOUT(AC)
50mV/DIV
ILOAD
10A/DIV
200µs/DIV
Burst Mode Operation (Figure 12)
VIN = 12V, VOUT = 1.55V, ILOAD = 3A
VOUT(AC)
50mV/DIV
IL1
5A/DIV
Constant Frequency Mode
(Figure 12)
VIN = 12V, VOUT = 1.55V, ILOAD = 3A
VOUT(AC)
50mV/DIV
IL1
5A/DIV
3719 G19
IL2
5A/DIV
FCB = OPEN
R5, R7 = 2mΩ
10µs/DIV
3719 G25
IL2
5A/DIV
FCB = INTVCC
10µs/DIV
R5, R7 = 2mΩ
3719 G26
Current Sense Pin Input Current
vs Temperature
–12
VOUT = 1.55V
–11
–10
–9
–8
EXTVCC Switch Resistance
vs Temperature
10
8
6
4
2
Oscillator Frequency
vs Temperature
350
VPLLFLTR = 2.4V
300
250
200
150
VPLLFLTR = 0V
100
50
–7
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
3719 G20
0
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
3719 G21
0
– 50 – 25
0 25 50 75
TEMPERATURE (°C)
100 125
3719 G22
Undervoltage Lockout
vs Temperature
3.50
3.45
3.40
3.35
3.30
3.25
3.20
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
3719 G23
VRUN/SS Shutdown Latch
Thresholds vs Temperature
4.5
4.0
LATCH ARMING
3.5
3.0
LATCHOFF
THRESHOLD
2.5
2.0
1.5
1.0
0.5
0
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
3719 G24
sn3719 3719fs
7
Share Link: 