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参数资料
| 型号： | MAX1573ETE+T |
| 厂商： | Maxim Integrated |
| 文件页数： | 2/9页 |
| 文件大小： | 0K |
| 描述： | IC LED DRVR WHITE BCKLGT 16-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： | 线性（LDO），PWM，降压（降压），升压（升压），切换式电容器（充电泵） |
| 输出数： | 4 |
| 内部驱动器： | 是 |
| 类型 - 主要： | 背光 |
| 类型 - 次要： | 白色 LED |
| 频率： | 1MHz |
| 电源电压： | 2.7 V ~ 5.5 V |
| 输出电压： | 5V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-WQFN 裸露焊盘 |
| 供应商设备封装： | 16-TQFN-EP（4x4） |
| 包装： | 带卷 (TR) |
| 工作温度： | -40°C ~ 85°C |
White LED 1x/1.5x Charge Pump in
UCSP and Thin QFN
ABSOLUTE MAXIMUM RATINGS
IN, OUT, EN1, EN2 to GND ...................................-0.3V to +6.0V
SET, LED1, LED2, LED3, LED4 to GND ......-0.3V to (V IN + 0.3V)
C1N, C2N to GND ..........................................-0.3V to (V IN + 1V)
C1P, C2P to GND ............................................-0.3V to greater of
............................................................. (V OUT + 1V) or (V IN + 1V)
OUT Short Circuit to GND ..........................................Continuous
Continuous Power Dissipation (T A = +70°C)
14-Bump UCSP (derate 7.36mW/°C above +70°C) ....589mW
16-Pin Thin QFN (derate 16.9mW/°C above +70°C) .1349mW
Operating Temperature Range ...........................-40°C to +85°C
Junction Temperature ......................................................+150°C
Storage Temperature Range .............................-65°C to +150°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 EN1 = V EN2 = 3.6V, C IN = C1 = C2 = C OUT = 1μF, T A = -40°C to +85°C. Typical values are at T A = +25°C, unless otherwise
noted.) (Note 1)
PARAMETER
IN Operating Voltage
Undervoltage Lockout Threshold
Supply Current
Shutdown Supply Current
CONDITIONS
V IN rising or falling, 35mV hysteresis
Switching, no load, I SET = 130μA
EN1 = EN2 = OUT = GND, T A = +25°C
MIN
2.7
2.25
TYP
2.45
2
0.1
MAX
5.5
2.60
4
10
UNITS
V
V
mA
μA
Soft-Start Completion Time
2.1
ms
SET Bias Voltage
SET Leakage in Shutdown
SET Current Range
EN1 = EN2 = GND, T A = +25°C
EN1 = EN2 = IN
0.570
40
190
0.6
0.01
219
0.630
1
130
245
V
μA
μA
SET to LED_ Current Ratio (I LED /I SET )
I SET = 60μA
EN1 = IN, EN2 = GND
58
66
74
A/A
EN1 = GND, EN2 = IN
19.5
22
25.0
LED_ Current Accuracy
LED_ Current Matching
EN1 = EN2 = IN, R SET = 4.64k Ω , T A = 0°C to +85°C
I SET = 130μA, T A = 0°C to +85°C (Note 2)
±0.6
±0.2
%
%
Maximum LED_ Sink Current
I SET = 130μA, EN1 = EN2 = IN
25.9
28
mA
LED_ Dropout Voltage
I SET = 87μA (Note 3)
40
80
mV
LED_ Minimum Regulation Voltage (1.5x Mode)
LED Leakage in Shutdown
EN1 = EN2 = IN, I SET = 87μA
EN1 = EN2 = GND, V LED = 5.5V, T A = +25°C
100
150
0.01
200
1
mV
μA
Maximum OUT Current
Open-Loop OUT Resistance
Switching Frequency
EN1, EN2 Logic High Voltage
EN1, EN2 Logic Low Voltage
V IN ≥ 3.4V, V OUT ≥ 3.9V, EN1 = EN2 = IN
1x mode (1 x V IN - V OUT ) / I OUT
1.5x mode (1.5 x V IN - V OUT ) / I OUT
V IN = 2.7V to 5.5V
V IN = 2.7V to 5.5V
120
1.6
1
1.5
10
0.4
mA
Ω
MHz
V
V
EN1, EN2 Input Current
Thermal-Shutdown Threshold
V EN _ = GND or 5.5V, T A = +25°C
20°C hysteresis
0.01
160
1
μA
° C
Note 1: Specifications to -40 ° C are guaranteed by design and not production tested.
Note 2: LED_ current matching is defined as: (I LED - I AVG ) / I AVG .
Note 3: Dropout voltage is defined as the LED_ to GND voltage at which the LED_ current drops 10% from the value at V LED = 200mV.
2
_______________________________________________________________________________________
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