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MAX1553 数据表(PDF) 3 Page - Maxim Integrated Products

部件名 MAX1553
功能描述  High-Efficiency, 40V Step-Up Converters for 2 to 10 White LEDs
PDF  10 Pages
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制造商  MAXIM [Maxim Integrated Products]
网页  https://www.maximintegrated.com/en.html
标志 MAXIM - Maxim Integrated Products

MAX1553 数据表(HTML) 3 Page - Maxim Integrated Products

  MAX1553_15 Datasheet HTML 1Page - Maxim Integrated Products MAX1553_15 Datasheet HTML 2Page - Maxim Integrated Products MAX1553_15 Datasheet HTML 3Page - Maxim Integrated Products MAX1553_15 Datasheet HTML 4Page - Maxim Integrated Products MAX1553_15 Datasheet HTML 5Page - Maxim Integrated Products MAX1553_15 Datasheet HTML 6Page - Maxim Integrated Products MAX1553_15 Datasheet HTML 7Page - Maxim Integrated Products MAX1553_15 Datasheet HTML 8Page - Maxim Integrated Products MAX1553_15 Datasheet HTML 9Page - Maxim Integrated Products Next Button
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MAX1553/MAX1554
High-Efficiency, 40V Step-Up
Converters for 2 to 10 White LEDs
Maxim Integrated | 3
www.maximintegrated.com
PARAMETER
CONDITIONS
MIN
MAX
UNITS
MAX1553
2.7
5.5
Supply Voltage
MAX1554
3.15
5.50
V
Undervoltage Lockout Threshold
VCC rising or falling, 35mV hysteresis typical
2.35
2.65
V
Not switching
0.65
Quiescent Current
Switching
0.9
mA
OV Threshold
Rising edge
1.18
1.33
V
BRT Input Resistance
0 < VBRT < 1.5V, EN = VCC
200
600
k
Ω
TIMING CONTROL
Maximum On-Time
VCC = 3.3V
2.0
4.8
µs
Minimum Off-Time
150
350
ns
ERROR AMPLIFIER
FB Threshold
VBRT = 1.25V
192
217
mV
N-CHANNEL SWITCH
LX On-Resistance
1.4
Ω
MAX1553
300
600
LX Current Limit
MAX1554, VCC = 4.2V
600
1200
mA
SHUTDOWN CONTROL
EN Logic-Level High
1.8
V
EN Logic-Level Low
0.4
V
Electrical Characteristics (continued)
(VCC = 3.3V, VOV = 0V, COUT = 1µF, RSENSE = 10
Ω, TA = 0°C to +85°C, unless otherwise noted. Typical values are at TA = +25°C.)
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
MAX1553
300
480
600
LX Current Limit
MAX1554, VCC = 4.2V
600
970
1200
mA
TA = +25°C
0.1
5
LX Leakage Current
VLX = 38V,
VEN = 0V
TA = +85°C
1
µA
SHUTDOWN CONTROL
EN Logic-Level High
1.8
V
EN Logic-Level Low
0.4
V
TA = +25°C
0.01
1
EN Input Current
VEN = 0V or 5.5V
TA = +85°C
0.1
µA
Electrical Characteristics
(VCC = 3.3V, VOV = 0V, COUT = 1µF, RSENSE = 10
Ω, TA = -40°C to +85°C, unless otherwise noted.) (Note 1)
Note 1: Specifications to -40°C are guaranteed by design, not production tested.



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