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參數(shù)資料
| 型號(hào)： | MLX10803_05 |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | Automotive high power LED driver |
| 中文描述： | 汽車等功率LED驅(qū)動(dòng)器 |
| 文件頁數(shù)： | 8/25頁 |
| 文件大小： | 866K |
| 代理商： | MLX10803_05 |
IC specification
MLX10803
Automotive high power LED driver
3901010803 Page 8/25
Rev 018 28/SEP/05
Author:
ALX, VAR
revised: TFR/VAR
4.
Following characteristics are valid
-
for the full temperature range of T = -40°C to +125°C,
-
a supply range of 32V
≥
VS/PWM > 6V
unless other conditions noted.
With 6V
≥
VS/PWM > vporh analogue parameters can not be guaranteed.
Note: The correct operation of the MLX10803 as a switching mode power supply for voltages lower than the
nominal supply voltage is dependent on the forward bias voltage of the used LED.
The user must ensure that at low supply voltage the peak current threshold voltage on the RSENSE pin can
be reached in order to keep the switching principle working.
If several pins are charged with transients above VS/PWM and below GND, the sum
of all substrate currents of the
influenced pins should not exceed 10mA for correct operation of the device.
Normal operating supply voltage is supposed to be 13.8V.
Parameter
Symbol
Conditions
Global parameters
Maximum current during
80V load dump
Normal supply current at
highest DC voltage
Normal supply current
inom
VS/PWM=13.8V
IC settling time
IC settling time after
power on reset
Oscillator related parameters
The min/max specification influences directly all derived timings in the same direction
Min oscillator frequency
foscmin
For a selected
external resistor of
440k and room
temperature
Max oscillator frequency
foscmax
For a selected
external resistor of
40k and room
temperature
Electrical characteristics
Min
Limits
Typ
Max
Units
ihv
VS/PWM=80V
10
mA
inomdch
VS/PWM=32V
2
mA
700
uA
tsettle
30
μs
0.4
0.5
0.6
MHz
4.0
5.0
6.0
MHz
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