LT1432CN8 데이터 시트보기 (PDF) - Linear Technology
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LT1432CN8 Datasheet PDF : 28 Pages
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LT1432
TYPICAL PERFOR A CE CHARACTERISTICS
Incremental Battery Current * in
Burst Mode
2.0
TJ = 25°C
1.5
1.0
0.5
0
0
5
10
15
20
25
BATTERY VOLTAGE (V)
LT1432 G10
* TO CALCULATE TOTAL BATTERY CURRENT IN BURST
MODE, MULTIPLY LOAD CURRENT BY INCREMENTAL
FACTOR AND ADD NO-LOAD CURRENT.
Line Regulation
40
TJ = 25°C
20 BURST MODE
0
NORMAL MODE
–20
–40
0
5
10
15
INPUT VOLTAGE (V)
20
LT1432 G13
Restart Load Current
40
VOUT = 4.5V
30
20
10
0
0
25
50
75
100
JUNCTION TEMPERATURE (°C)
LT1432 G16
No Load Battery Current in Burst
Mode
5
TJ = 25°C
4
3
2
1
0
0
5
10
15
20
25
BATTERY VOLTAGE (V)
LT1432 G09
Transconductance – VOUT to VC
Current
4000
3000
Gm = ∆I(VC PIN)
∆VOUT
2000
1000
40
0
25
50
75
100
JUNCTION TEMPERATURE (°C)
LT1432 G12
Burst Mode Load Regulation
25
TJ = 25°C
0
–25
–50
–75
0
20
40
60
80 100
LOAD CURRENT (mA)
LT1432 G14
Restart Time Delay
4
3
2
1
0
0
25
50
75
100
JUNCTION TEMPERATURE (°C)
LT1432 G16
Mode Pin Current
60
TJ = 25°C
40
20
0
–20
–40
0
MODE DRIVE MUST
SINK ≈ 30µA AT 0V
2
4
6
8
10
MODE PIN VOLTAGE (V)
LT1432 G15
Startup Switch Characteristics
5
TJ = 25°C
0
NOTE VERTICAL &
HORIZONTAL SCALE
CHANGES AT 0,0
–20
–40
–60
–80
–2
–1
0
10
20
30
V+ TO VIN VOLTAGE
LT1432 G18
5
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