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參數(shù)資料
| 型號(hào)： | MLX10803KDC |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | High power LED driver |
| 中文描述： | 高功率LED驅(qū)動(dòng)器 |
| 文件頁數(shù)： | 7/25頁 |
| 文件大?。?/td> | 479K |
| 代理商： | MLX10803KDC |
IC specification
MLX10803
High power LED driver
3901010803 Page 7/25
Data Sheet
Rev 025 2/OCT/07
2.
Nr. Name
1
VREF
2
ROSC
3
IREF1
4
IREF2
5
RSENSE
6
GND
7
DRVGATE Pin driving the gate of the switching transistor
8
VS/PWM
Supply Voltage / PWM signal
Application pins
Function
Analogue input, setting of LED peak current
External resistor sets internal Oscillator frequency. Sets the average discharge time of the coil
External NTC resistor for temperature down regulation
External resistor sets the temperature breakpoint when the NTC resistor starts down regulation
External sense resistor pin for peak current detection
Ground
3.
Parameter
Power supply (VS/PWM)
Absolute maximum ratings
Symbol
vs
Condition
DC
max. 2h
max 0.5s
In case of
maximum
supply ratings
normal
operation
without external
resistor
protected by
external 47k
resistor
normal
operation
idrvgatemax
current must
not be
exceeded
pulse mode
normal
operation.
max. 100h
normal
operation
SOIC8
Min
-0.3
-0.3
36
-10
Max
32
36
80
10
Unit
V
V
V
mA
Power supply, non operational function
max. 0.5s (Load dump)
Input current in protection circuitry on any pin
vsmax
iprot
Input voltage on RSENSE pin
virsense
-0.3
11
Input voltage on IREF1, IREF2, VREF pins
vrefmax
-0.3
-80
(0.5s)
-0.3
40
80
(0.5s)
Vdd+0.3
V
V
Input voltage on ROSC pin
vroscmax
V
Input voltage on DRVGATE pin
vdrvgatmax
-0.3
22
V
Input/output current on DRVGATE pin
Junction temperature
Lifetime
Dynamic
Storage temperature
Ambient temperature range
idrgatemax
Tjunc
-40
-40
-55
-40
500
140
150
150
125
mA
°C
Tambient
°C
Thermal resistance junction to ambient
rth
128.4
K/W
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