NIS5101
http://onsemi.com
4
TYPICAL PERFORMANCE CURVES
(T
A
= 25°C unless otherwise noted)
15
25
30
35
10 100
UVLO_R
ext
(kW)
UVLO TRIP POINT (V)
100
20
40
100
50
70
90
10 1000
OVLO_R
ext
(kW)
OVLO TRIP POINT (V)
21453
CONTINUOUS CURRENT (A)
CASE TEMPERATURE (°C)
6
Device Reaching
Thermal Shutdown
0.5 in
2
Cu area
1 in
2
Cu area
2 in
2
Cu area
Figure 2. Current Limit Adjustment
(For Main/Mirror MOSFET Current Ratio explanation,
see page 11)
0.1
1 10 100 1000
R
ext
_I
Limit
(W)
I
Limit
(A)
1
Overload −40°C
Short Circuit −40°C
Figure 3. UVLO Adjustment
Figure 4. OVLO Adjustment, T
J
= 255C
10
100
30
20
60
80
40
25
45
55
75
85
105
115
35
65
95
Turn−Off −40°C
Turn−On −40°C
Overload 25°C
Overload 120°C
Short Circuit 25°C
Short Circuit 120°C
Turn−On 25°C
Turn−On 120°C
Turn−Off 25°C
Turn−Off 120°C
Turn−Off 25°C
Turn−On 25°C
100
50
70
90
10 100
OVLO_R
ext
(kW)
OVLO TRIP POINT (V)
Figure 5. OVLO Adjustment, T
J
= 1205C
100
30
20
60
80
40
Turn−Off 120°C
Turn−On 120°C
100
50
70
90
10 1000
OVLO_R
ext
(kW)
OVLO TRIP POINT (V)
Figure 6. OVLO Adjustment, T
J
= −405C
100
30
20
60
80
40
Turn−On −40°C
Turn−Off −40°C
Figure 7. Continuous Current vs. Case Temperature
(Test performed on a double sided copper board, 1 oz)
