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MP24894 数据表(PDF) 3 Page - Monolithic Power Systems

部件名 MP24894
功能描述  Step-Down WLED-Current Controller with Wide 6V to 60V Input Voltage
PDF  12 Pages
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制造商  MPS [Monolithic Power Systems]
网页  http://www.monolithicpower.com
标志 MPS - Monolithic Power Systems

MP24894 数据表(HTML) 3 Page - Monolithic Power Systems

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MP24894 – STEP-DOWN LED-CURRENT CONTROLLER WITH WIDE 6V TO 60V INPUT VOLTAGE
MP24894 Rev 1.01
www.MonolithicPower.com
3
12/20/2012
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2012 MPS. All Rights Reserved.
ELECTRICAL CHARACTERISTICS
VIN = 24V, TA = 25°C, unless otherwise noted.
Parameter
Symbol
Condition
Min
Typ
Max
Units
Input voltage
VIN
6
60
V
Shutdown supply current
ISD
80
108
µA
Quiescent supply current
IQ
No Switching
0.3
0.5
mA
VCC voltage
Vcc
VEN/DIM = 3.5V
5.5
6
V
Feedback average voltage
(with respect to VIN)
VIN-VRS VEN/DIM = 3.5V
194
200
206
mV
Feedback reference voltage
hysterisis
VFB_HYS
±30
mV
EN/DIM enable high voltage
VEN_HIGH VEN Rising
0.29
0.34
V
EN/DIM enable hysterisis
VEN_HYS
20
50
80
mV
EN/DIM pull-up current
Pull up to 5V
2.8
μA
EN/DIM pull-down current
Pull down to GND
25
μA
Min recommended pwm dimming
frequency
FPWMmin
0.1
kHz
Max recommended pwm dimming
frequency
FPWMmax
20
kHz
Gate driver source resistor
R_source VGS = 5.5V
6
Ω
Gate driver sink resistor
R_sink
2
Ω
Gate driver output-voltage high
VOH
IDRV = 10mA
5.5
V
Gate driver output-voltage low
VOL
IDRV = 10mA
0.5
V
Minimum on time
TON_MIN
Guarantee by Designer
100
ns
Minimum off time
TOFF_MIN Guarantee by Designer
100
ns
Recommended maximum
operating frequency
FMAX
1
MHz
UVLO threshold voltage(VCC)
VUVLOTH VCC Rising
5.6
V
UVLO hysteresis
VUVLOHYS
0.4
V
Thermal shutdown threshold
Temp Rising
150
°C
Thermal shutdown hysteresis
Guarantee by Designer
20
°C



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