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参数资料
| 型号： | DC1274A |
| 厂商： | Linear Technology |
| 文件页数： | 3/20页 |
| 文件大小： | 0K |
| 描述： | BOARD DEMO LTM8040 |
| 设计资源： | LTM8040 Spice Model DC1274A Schematic |
| 标准包装： | 1 |
| 系列： | µModule® |
| 电流 - 输出 / 通道： | 1A |
| 输出及类型： | 1，非隔离 |
| 输出电压： | 13V |
| 特点： | PWM 控制 |
| 输入电压： | 4 V ~ 36 V |
| 已供物品： | 板 |
| 已用 IC / 零件： | LTM8040 |
LTM8040
ELECTRICAL CHARACTERISTICS The l denotes the speci?cations which apply over the full operating
temperature range, otherwise speci?cations are at T A = 25°C. V IN = 12V, SHDN = 5V, V PWM = 5V, unless otherwise noted (Note 3).
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
LEDA Clamp Voltage
Minimum BIAS Voltage
13.2
2.0
14.5
2.6
V
V
Note 1: Stresses beyond those listed under Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to any Absolute
Maximum Rating condition for extended periods may affect device
reliability and lifetime.
Note 2: This μModule includes overtemperature protection that is intended
to protect the device during momentary overload conditions. Junction
temperature will exceed 125°C when overtemperature protection is active.
Continuous operation above the speci?ed maximum operating junction
temperature may impair device reliability.
Note 3: The LTM8040E is guaranteed to meet performance speci?cations
from 0°C to 125°C internal. Speci?cations over the full –40°C to
125°C internal operating temperature range are assured by design,
characterization and correlation with statistical process controls. The
LTM8040I is guaranteed to meet speci?cations over the full –40°C to 125°C
internal operating temperature range. Note that the maximum internal
temperature is determined by speci?c operating conditions in conjunction
with board layout, the rated package thermal resistance and other
environmental factors.
TYPICAL PERFORMANCE CHARACTERISTICS
otherwise noted)
(T A = 25°C, con?gured per Table 2 unless
85
80
75
70
65
60
Ef ?ciency –Single 2.7V at 1A LED
100
90
80
70
60
50
40
30
Ef ?ciency –Three 2.7V at 1A LEDs
100
90
80
70
60
50
40
30
Ef ?ciency –Four 2.7V at 1A LEDs
55
50
0
24 V IN
12 V IN
5 V IN
200
400
600
800
1000
20
10
0
0
24 V IN
12 V IN
200
400
600
800
1000
20
10
0
0
24 V IN
12 V IN
200
400
600
800
1000
90
80
70
60
50
40
30
OUTPUT CURRENT (mA)
8040 G01
Ef ?ciency –Single 3.3V at 1A LED
100
90
80
70
60
50
40
30
OUTPUT CURRENT (mA)
8040 G02
Ef ?ciency –Two 3.3V at 1A LEDs
100
90
80
70
60
50
40
30
OUTPUT CURRENT (mA)
8040 G03
Ef ?ciency –Three 3.3V at 1A LEDs
20
10
0
0
24 V IN
12 V IN
5 V IN
200
400
600
800
1000
20
10
0
0
24 V IN
12 V IN
200
400
600
800
1000
20
10
0
0
24 V IN
12 V IN
200
400
600
800
1000
OUTPUT CURRENT (mA)
8040 G04
OUTPUT CURRENT (mA)
8040 G05
OUTPUT CURRENT (mA)
8040 G06
8040fa
3
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