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QX5241 Datasheet Preview

QX5241 Datasheet

High-side Sense High-brightness LED Driver

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QX5241 pdf
QX5241
High-side Sense High-brightness LED Driver
General Description
QX5241 is a step-down high-brightness
LED constant-current driver with high
accuracy.
A high-side current-sense resistor adjusts the
output current, which minimizes the number
of external components while delivering an
LED current with ±1% accuracy, and a
dedicated PWM input (DIM) makes a wide
range of pulsed dimming feasible.
A hysteretic control algorithm ensures
excellent input-supply rejection and fast
response to load transients and PWM
dimming. QX5241 features a 20% inductor
current ripple and operates up to 1MHz
switching frequency.
QX5241 is well suited for applications
requiring a wide input voltage range from
5.5V to 36V, and operates over the -20to
85automatic temperature range.
Features
Maximum Output Current: 2.5A
High Efficiency: 96%
High-side Current Sense
Maximum Dimming Frequency: 5KHz
Hysteretic Control: No Compensation
Maximum Operating frequency: 1MHz
High Current Accuracy: Up to ±1%
Wide input voltage range: 5.5V to 36V
Maximum Output Power: 25W
5V, 5mA On-chip Regulator
Applications
Architectural, Industrial, and Ambient
Lighting
MR16 and Other LED Bulbs
Automotive Lighting
Typical Application
DSW
VIN
RCS
L1
VIN CSN
CIN QX5241 DRV
VSS VCC DIM
Q1
CCC
QX5241_DS01EN
Figure 1Typical Application Circuit Diagrams of QX5241
QX Micro Devices Co., Ltd.
www.qxmd.com.cn
1 of 9



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QX5241 Datasheet Preview

QX5241 Datasheet

High-side Sense High-brightness LED Driver

No Preview Available !

QX5241 pdf
QX5241
High-side Sense High-brightness LED Driver
Ordering Information
Type Number
QX5241
Package Marking
5241a
Pin Assignments
VSS DRV VCC
654
5241a
123
CSN DIM VIN
SOT23-6
QX5241_DS01EN
QX Micro Devices Co., Ltd.
www.qxmd.com.cn
2 of 9


Part Number QX5241
Description High-side Sense High-brightness LED Driver
Maker Qxmd
Total Page 9 Pages
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