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KP107XQ series
KP107XQ External overheat regulation protection, buck-type quasi-resonant LED power switch The KP107XQ series is a highly integrated constant current LED power switch. The chip adopts a quasi-resonant operating mode and does not require an auxiliary winding to detect demagnetization. At the same time, it integrates a high-voltage 500V power MOSFET and a high-voltage self-powered circuit, simplifying system design and reducing production costs. The chip integrates high-precision inductor current sampling technology to achieve high-precision constant current output, and the output line voltage and load regulation performance are excellent. The OTP protection point can be adjusted by external resistor divider. KP107XQ integrates complete protection functions to ensure safe and reliable system operation, such as: VDD undervoltage protection (UVLO), cycle-by-cycle current limit (OCP), overtemperature protection (OTP), LED short circuit protection, etc.
Category：
- Product Description
-
- Commodity name: KP107XQ series
- 封装: SOP-7 / DIP-7
KP107XQ External overheat regulation protection, buck-type quasi-resonant LED power switch The KP107XQ series is a highly integrated constant current LED power switch. The chip adopts a quasi-resonant operating mode and does not require an auxiliary winding to detect demagnetization. At the same time, it integrates a high-voltage 500V power MOSFET and a high-voltage self-powered circuit, simplifying system design and reducing production costs. The chip integrates high-precision inductor current sampling technology to achieve high-precision constant current output, and the output line voltage and load regulation performance are excellent. The OTP protection point can be adjusted by external resistor divider. KP107XQ integrates complete protection functions to ensure safe and reliable system operation, such as: VDD undervoltage protection (UVLO), cycle-by-cycle current limit (OCP), overtemperature protection (OTP), LED short circuit protection, etc.
Main Features
• ±3°C ultra-high OTP accuracy
• 6-level adjustable OTP function
• Integrated high-voltage 500V MOSFET
• Integrated high-voltage self-powered circuit
• No VDD capacitor design
• ±5% constant current accuracy
• High-efficiency operation in quasi-resonant mode
• Ultra-low operating current
• Excellent line voltage and load regulation
• Flicker-free dimming throughout the OTP current reduction process
• Internal protection functions:
• Cycle-by-cycle current limiting (OCP)
• Leading edge blanking (LEB)
• LED short-circuit protection
• Over-temperature protection (OTP)
• Optional SOP-7 and DIP-7 packages
Product Model
Topology Circuit
Power Factor
MOS Withstand Voltage (V)
On-Resistance (Ω)
LED Open Circuit Protection
Recommended Output Current (mA)
Vin=176-265Vac Vout=72V
Package
Features
KP107AQ
Buck
PF>0.5
Critical Conduction
500
12
—
<160
SOP-7
Adjustable OTP
KP1070Q
Buck
PF>0.5
Critical Conduction
500
8.5
—
<180
SOP-7
Adjustable OTP
KP1071Q
Buck
PF>0.5
Critical Conduction
500
5.3
—
<200
SOP-7
Adjustable OTP
KP1072Q
Buck
PF>0.5
Critical Conduction
500
2.5
—
<300
SOP-7
Adjustable OTP
KP1073Q
Buck
PF>0.5
Critical Conduction
500
1.9
—
<350
SOP-7
Adjustable OTP
KP1072Q
Buck
PF>0.5
Critical Conduction
500
2.5
—
<340
DIP-7
Adjustable OTP
KP1073Q
Buck
PF>0.5
Critical Conduction
500
1.9
—
<420
DIP-7
Adjustable OTP
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Company Address：
Room 819, Dongmei Building, Xiangnan Three District, Minqiang Community, Minzhi Street, Longhua District, Shenzhen
