LTC4361-2 Linear Technology, LTC4361-2 Datasheet - Page 4

• Manufacturer Part Number: LTC4361-2
• Description: Overvoltage/Overcurrent Protection Controller
• Manufacturer: Linear Technology

LTC4361-1/LTC4361-2
TYPICAL PERFORMANCE CHARACTERISTICS
T
0.5A/DIV
4
10V/DIV
A
5V/DIV
5V/DIV
I
V
10000
CABLE
V
= 25°C, V
1000
GATE
200
100
500
400
300
OUT
100
V
0.1
10
IN
0
1
0
1
Normal Start-Up Sequence
FIGURE 5 CIRCUIT
R
R
LOAD = 10Ω, C
Input Supply Current
vs Input Voltage
PWRGD Voltage
vs PWRGD Current
IN
SENSE
= 150mΩ, L
V
IN
ON
= 25mΩ
1
= 0V
= 5V, V
OUT
IN
I
PWRGD
2
20ms/DIV
= 0.7μH
ON
= 10μF
V
IN
10
= 0V, unless otherwise noted.
(V)
V
(mA)
ON
3
= 2.5V
4
436112 G04
436112 G07
436112 G01
100
5
0.5A/DIV
10V/DIV
5V/DIV
5V/DIV
I
V
CABLE
V
GATE
OUT
V
IN
7
1
0
8
6
5
4
3
2
8
7
6
5
4
3
2
1
0
0
0
GATE Drive vs GATE Current
GATE Off Propagation Delay
vs Overdrive
GATE Slow Ramp-Up
FIGURE 5 CIRCUIT
R
R
LOAD = 10Ω, C
IN
SENSE
= 150mΩ, L
2
0.5
= 25mΩ
V
IN
= STEP 5V TO (V
V
OUT
4
IN
IN
V
V
IN
1
I
= 0.7μH
= 3V
OVDRV
1ms/DIV
GATE
= 10μF
= 2.5V
6
(μA)
(V)
1.5
IN(OV)
8
V
IN
+ V
2
= 5V
10
OVDRV
436012 G05
436112 G08
436112 G02
)
2.5
12
0.5A/DIV
10V/DIV
5V/DIV
5V/DIV
I
V
CABLE
V
GATE
V
OUT
35
25
20
ON
40
30
12
11
10
9
8
7
6
5
4
–50
2.5
GATE Fast Pull-Down Current
vs Temperature
GATE Voltage and GATE High
Threshold (for PWRGD Status)
vs Input Voltage
Entering Sleep Mode
FIGURE 5 CIRCUIT
R
R
LOAD = 10Ω, C
V
V
V
IN
SENSE
IN
IN
GATE
= 150mΩ, L
= V
= 6V
–25
3
= 9V
= 25mΩ
OUT
3.5
TEMPERATURE (°C)
0
OUT
IN
= 0.7μH
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50μs/DIV
4
= 10μF
V
IN
25
(V)
4.5
V
V
GATE(TH)
50
GATE
5
75
5.5
436112 G09
436112 G03
436112 G06
436112f
100
6