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| 型号： | MAX16809ATU+T |
| 厂商： | Maxim Integrated |
| 文件页数： | 2/20页 |
| 文件大小： | 0K |
| 描述： | IC LED DRVR WT/RGB BCKLT 38-TQFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 恒定电流： | 是 |
| 拓扑： | 开路漏极，PWM，降压（降压），SEPIC，升压（升压） |
| 输出数： | 16 |
| 内部驱动器： | 是 |
| 类型 - 主要： | 背光 |
| 类型 - 次要： | RGB，白色 LED |
| 频率： | 20kHz ~ 1MHz |
| 电源电压： | 8 V ~ 26.5 V |
| 输出电压： | 36V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 38-WFQFN 裸露焊盘 |
| 供应商设备封装： | 38-TQFN（5x7） |
| 包装： | 带卷 (TR) |
| 工作温度： | -40°C ~ 125°C |
Integrated 16-Channel LED Driver with
Switch-Mode Boost and SEPIC Controller
ABSOLUTE MAXIMUM RATINGS
V CC to AGND..........................................................-0.3V to +30V
Current into V CC (V CC > 24V) .............................................30mA
V+ to PGND..............................................................-0.3V to +6V
OUT to AGND.............................................-0.3V to (V CC + 0.3V)
OUT Current (10μs duration) .................................................±1A
FB, COMP, CS, RTCT, REF to AGND.......................-0.3V to +6V
COMP Sink Current.............................................................10mA
OUT0–OUT15 to PGND..........................................-0.3V to +40V
DIN, CLK, LE, OE , SET to PGND..................-0.3V to (V+ + 0.3V)
DOUT Current...................................................................±10mA
OUT0–OUT15 Sink Current.................................................60mA
Total PGND Current (1s pulse time) .................................960mA
Continuous Power Dissipation (T A = +70°C)
38-Pin TQFN (derate 35.7mW/°C* above +70°C) ......2857mW
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
*Per JEDEC51 Standard (Multilayer Board).
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 (PWM CONTROLLER)
(V CC = +15V, V+ = +3V to +5.5V referenced to PGND, R T = 10k Ω , C T = 3.3nF, REF = open, COMP = open, C REF = 0.1μF, V FB = 2V,
CS = AGND, AGND = PGND = 0V; all voltages are measured with respect to AGND, unless otherwise noted. T J = T A = -40°C to
+125°C, unless otherwise noted. Typical values are at T A = +25°C.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
REFERENCE
Output Voltage
V REF
I REF = 1mA, T J = +25°C
4.95
5
5.05
V
Line Regulation
Load Regulation
Total Output-Voltage Variation
Output Noise Voltage
Output Short-Circuit Current
Δ V LINE
Δ V LOAD
V REFT
V NOISE
I SHORT
12V< V CC < 25V, I REF = 1mA
1mA < I REF < 20mA
(Note 2)
10Hz < f < 10kHz
V REF = 0V
4.875
30
0.4
6
50
4
50
5.125
180
mV
mV
V
μV
mA
OSCILLATOR
Initial Accuracy
Voltage Stability
T J = +25°C
12V < V CC < 25V
51
54
0.2
57
0.5
kHz
%
Temperature Stability
RTCT Ramp Peak-to-Peak
RTCT Ramp Valley
1
1.7
1.1
%
V
V
Discharge Current
Frequency Range
I DIS
f OSC
V RTCT = 2V, T J = +25°C
V RTCT = 2V, -40 o C ≤ T J ≤ +125°C
7.9
7.5
20
8.3
8.3
8.7
9.0
1000
mA
kHz
ERROR AMPLIFIER
FB Input Voltage
Input Bias Current
Open-Loop Gain
V FB
I B(FB)
A VOL
FB shorted to COMP
2V ≤ V COMP ≤ 4V
2.45
2.5
-0.01
100
2.55
-0.1
V
μA
dB
Unity-Gain Bandwidth
f GBW
1
MHz
Power-Supply Rejection Ratio
COMP Sink Current
PSRR
I SINK
12V ≤ V CC ≤ 25V
V FB = 2.7V, V COMP = 1.1V
60
2
80
6
dB
mA
COMP Source Current
COMP Output-Voltage High
COMP Output-Voltage Low
I SOURCE
V OH
V OL
V FB = 2.3V, V COMP = 5V
V FB = 2.3V, R COMP = 15k Ω to AGND
V FB = 2.7V, R COMP = 15k Ω to V REF
0.5
5
1.2
5.8
0.1
1.8
1.1
mA
V
V
2
_______________________________________________________________________________________
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