LM36010 Datasheet, PDF (28/37 Pages) Texas Instruments – Synchronous-Boost, Single-LED Flash Driver With 1.5-A High-Side Current Source

LM36010
SNVSAN4A – APRIL 2017 – REVISED JULY 2017
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T_A = 25°C, V_IN = 3.6 V, C_IN = 10 µF, C_OUT = 10 µF, L = 1 µH, V_LED = 3.4 V, Flash Time-out = 320 ms and Thermal Scale-Back
(TSB) disabled, unless otherwise noted.
100
100
95
Code 0x07
Code 0x0F
95
Code 0x07
Code 0x0F
90
Code 0x17
90
Code 0x17
85
Code 0x1F
Code 0x27
85
Code 0x1F
Code 0x27
80
Code 0x2F
80
Code 0x2F
Code 0x37
Code 0x37
75
Code 0x3F
75
Code 0x3F
70
70
65
65
60
60
55
55
50
50
45
2.5
3
3.5
4
4.5
5
5.5
V_IN (V)
D046
ƒ_SW = 2 MHz
45
2.5
3
3.5
4
4.5
5
5.5
V_IN (V)
D047
ƒ_SW = 2 MHz
Figure 56. LED Torch Efficiency vs Input Voltage
Figure 57. LED Torch Efficiency vs Input Voltage
100
95
90
85
80
75
70
65
60
55
85qC
50
25qC
-40qC
45
2.5
3
3.5
ƒ_SW = 2 MHz
4
4.5
5
V_IN (V)
I_TORCH = 376 mA
5.5
D048
100
95
90
85
80
75
70
65
60
55
85qC
50
25qC
-40qC
45
2.5
3
3.5
ƒ_SW = 4 MHz
4
4.5
5
V_IN (V)
I_TORCH = 376 mA
5.5
D049
Figure 58. LED Torch Efficiency vs Input Voltage
Figure 59. LED Torch Efficiency vs Input Voltage
100
95
90
85
80
75
70
65
60
55
85qC
50
25qC
-40qC
45
2.5
3
3.5
ƒ_SW = 2 MHz
4
4.5
5
V_IN (V)
I_TORCH = 258 mA
5.5
D050
100
95
90
85
80
75
70
65
60
55
85qC
50
25qC
-40qC
45
2.5
3
3.5
ƒ_SW = 2 MHz
4
4.5
5
V_IN (V)
I_TORCH = 188 mA
5.5
D051
Figure 60. LED Torch Efficiency vs Input Voltage
Figure 61. LED Torch Efficiency vs Input Voltage
28
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