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| 型号： | MAX16804ATP+T |
| 厂商： | Maxim Integrated |
| 文件页数： | 2/10页 |
| 文件大小： | 0K |
| 描述： | IC LED DRIVR HIGH BRIGHT 20-TQFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 拓扑： | PWM |
| 输出数： | 1 |
| 内部驱动器： | 是 |
| 类型 - 主要： | 车载 |
| 类型 - 次要： | 高亮度 LED（HBLED） |
| 电源电压： | 5.5 V ~ 40 V |
| 输出电压： | 5.1V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 20-WQFN 裸露焊盘 |
| 供应商设备封装： | 20-TQFN-EP（5x5） |
| 包装： | 带卷 (TR) |
| 工作温度： | -40°C ~ 125°C |
High-Voltage, 350mA LED Driver with
Analog and PWM Dimming Control
ABSOLUTE MAXIMUM RATINGS
IN to GND ...............................................................-0.3V to +45V
DIM, OUT, EN to GND .................................-0.3V to (V IN + 0.3V)
IN Slew Rate (20V < V IN < 45V) ...................................250mV/μs
CS+, V5 to GND .......................................................-0.3V to +6V
CS- to GND............................................................-0.3V to +0.3V
OUT Short Circuited to GND Duration
(at V IN < +16V).................................................................1hour
Maximum Current Into Any Pin (except IN and OUT).........±20mA
Continuous Power Dissipation (T A = +70°C)
20-Pin TQFN (derate 34.5mW/ ° C above +70 ° C) ......2758.6mW
Operating Temperature Range .........................-40°C to +125°C
Junction Temperature ......................................................+150°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS
(V IN = V EN = 12V, C V5 = 0.1μF, I V5 = 0, CS- = GND, R SENSE = 0.56 Ω (see the Typical Operating Circuit), V DIM = 4V, T A = T J = -40°C
to +125°C, unless otherwise noted. Typical values are at T A = T J = +25°C.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Supply Voltage Range
Ground Current
Shutdown Supply Current
Guaranteed Output Current
Output Current Accuracy
Dropout Voltage (Note 3)
Output Current Slew Rate
(External PWM Signal at DIM)
Short-Circuit Current
V IN
I G
I SHDN
I OUT
Δ V DO
(Note 2)
I LOAD = 350mA
V EN ≤ 0.3V
R SENSE = 0.55 ?
35mA < I OUT < 350mA, not including
R SENSE tolerance
I OUT = 350mA, 12V < V IN < 40V
I OUT = 350mA, 6.5V < V IN < 12V
Current rising, DIM rising to 4V
Current falling, DIM falling to 0.6V
V OUT = 0V
5.5
350
2.5
12
0.4
0.5
17
17
600
40.0
4.5
40
3
1.2
1.5
V
mA
μA
mA
%
V
mA/μs
mA
ENABLE INPUT
EN Input Current
EN Input-Voltage High
EN Input-Voltage Low
I EN
V IH
V IL
2.8
100
0.6
nA
V
V
Enable Turn–On Time
t ON
EN rising edge to 90% of OUT
250
μs
CURRENT SENSE (Note 4)
Regulated R SENSE Voltage
V RSENSE
V SENSE = V CS+ - V CS-
192
198
204
mV
Input Current (CS+)
Input Current (CS-)
V CS+ = 220mV
V CS+ = 220mV
-75
+14
μA
μA
INTERNAL RAMP GENERATOR
Internal Ramp Frequency
External Sync Frequency Range
f RAMP
f DIM
180
80
200
220
2000
Hz
Hz
External Sync Voltage Low
External Sync Voltage High
EXTERNAL PWM DIMMING INPU T
DIM Input Current
2.8
0.4
1
V
V
μA
Turn-On Time
Turn-Off Time
t ON
t OFF
After DIM rising to 4V (Note 5)
After DIM falling to 0.6V (Note 5)
28
19
52
38
μs
μs
2
_______________________________________________________________________________________
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| MAX16805ATP+ | 功能描述:LED照明驱动器 EEPROM-Prog 350mA w/Current Foldback RoHS:否 制造商:STMicroelectronics 输入电压:11.5 V to 23 V 工作频率: 最大电源电流:1.7 mA 输出电流: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:SO-16N |
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