MAX1573 查看數據表（PDF） - Maxim Integrated
零件编号
产品描述 (功能)
比赛名单
MAX1573 Datasheet PDF : 9 Pages
| |||
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 (VIN + 0.3V)
C1N, C2N to GND ..........................................-0.3V to (VIN + 1V)
C1P, C2P to GND ............................................-0.3V to greater of
.............................................................(VOUT + 1V) or (VIN + 1V)
OUT Short Circuit to GND ..........................................Continuous
Continuous Power Dissipation (TA = +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
(VIN = VEN1 = VEN2 = 3.6V, CIN = C1 = C2 = COUT = 1µF, TA = -40°C to +85°C. Typical values are at TA = +25°C, unless otherwise
noted.) (Note 1)
PARAMETER
IN Operating Voltage
Undervoltage Lockout Threshold
Supply Current
Shutdown Supply Current
Soft-Start Completion Time
SET Bias Voltage
SET Leakage in Shutdown
SET Current Range
SET to LED_ Current Ratio (ILED/ISET)
LED_ Current Accuracy
LED_ Current Matching
Maximum LED_ Sink Current
LED_ Dropout Voltage
LED_ Minimum Regulation Voltage (1.5x Mode)
LED Leakage in Shutdown
Maximum OUT Current
Open-Loop OUT Resistance
Switching Frequency
EN1, EN2 Logic High Voltage
EN1, EN2 Logic Low Voltage
EN1, EN2 Input Current
Thermal-Shutdown Threshold
CONDITIONS
VIN rising or falling, 35mV hysteresis
Switching, no load, ISET = 130µA
EN1 = EN2 = OUT = GND, TA = +25°C
EN1 = EN2 = GND, TA = +25°C
EN1 = EN2 = IN
ISET = 60µA
EN1 = IN, EN2 = GND
EN1 = GND, EN2 = IN
EN1 = EN2 = IN, RSET = 4.64kΩ, TA = 0°C to +85°C
ISET = 130µA, TA = 0°C to +85°C (Note 2)
ISET = 130µA, EN1 = EN2 = IN
ISET = 87µA (Note 3)
EN1 = EN2 = IN, ISET = 87µA
EN1 = EN2 = GND, VLED = 5.5V, TA = +25°C
VIN ≥ 3.4V, VOUT ≥ 3.9V, EN1 = EN2 = IN
1x mode (1 x VIN - VOUT) / IOUT
1.5x mode (1.5 x VIN - VOUT) / IOUT
VIN = 2.7V to 5.5V
VIN = 2.7V to 5.5V
VEN_ = GND or 5.5V, TA = +25°C
20°C hysteresis
MIN
2.7
2.25
0.570
40
190
58
19.5
25.9
100
120
1.6
TYP
2.45
2
0.1
2.1
0.6
0.01
219
66
22
±0.6
±0.2
28
40
150
0.01
1
0.01
160
MAX
5.5
2.60
4
10
0.630
1
130
245
74
25.0
80
200
1
1.5
10
0.4
1
UNITS
V
V
mA
µA
ms
V
µA
µA
A/A
%
%
mA
mV
mV
µA
mA
Ω
MHz
V
V
µA
°C
Note 1: Specifications to -40°C are guaranteed by design and not production tested.
Note 2: LED_ current matching is defined as: (ILED - IAVG) / IAVG.
Note 3: Dropout voltage is defined as the LED_ to GND voltage at which the LED_ current drops 10% from the value at VLED = 200mV.
2 _______________________________________________________________________________________
Share Link: 