PT6913A-B datasheet.pdf
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PT6913A/PT6913B-9W Bulb lamp high voltage constant current driver scheme.rar
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PT6913A/PT6913B DESCRIPTION：
PT6913A/B is a special current regulator to drive HV LED. Few external components design is very flexible in many compact size applications. The simple driving topology will improve power factor, efficiency. EMI issue will be avoided with this linear control.
PT6913A/B supports maximum 400V input voltage that ensures the high reliability for HV LED lighting. LED open/short is protected by PT6913A/B. The high voltage will be absorbed by PT6913A/B itself. LEDs will never face high voltage problem.
PT6913A/B also provides temperature attenuation function. When internal junction temperature is higher than 130℃, PT6913A/B will decrease the output current linearly. The output current will be zero when internal junction temperature reaches 150℃. This protection method effectively avoids the flicker problem during abnormal environment temperature.
PT6913A/PT6913B FEATURES：
●5V~400V Operating Voltage
●5~60mA Programmable Output Current
●±5% Current Accuracy
●Parallel Using for High Current Application
●High Power Factor
●High Efficiency
●Few External Components
●Without electrolytic capacitor
●LED Open/Short Protection
●Temperature Attenuation
- When TJ>130℃，output current will be decreased.
- Output current will be zero when TJ>150℃.
●SOT89-3 Package
●TO252-3 Package
PT6913A/PT6913B APPLICATIONS :
●GU10, MR16, E11, E17 LED Bulb
●LED Tube Lamp,Compact Size LED Lighting
●Triac dimming LED lighting products
PT6913A/PT6913B feature of the scheme：
●Small volume
●Few element, low cost
●Linear constant current technology, no EMI problems
●Especially suitable for driving the HV- LED light source
●Integrated intelligent temperature control function, overheating protection without blinking
●With the open circuit, short circuit protection function, high reliability
PT6913A/PT6913B Typical application circuit：
PT6913A/PT6913B Typical application parameters：
Electrical parameters
| Electrical specifications |
| Input voltage | 200Vac ~ 260Vac |
output load voltage
| 14 PCS 18V/30mA “3030” HV LED Lamp series |
Output power
| 6W @ 220VAC
|
| Output voltage | ≈ 250V
|
Output current
| 20mA |
| No capacitor scheme
| Capacitance (2.2uF) scheme
|
| Efficiency | 86.9% @ 220Vac
| 86.6% @ 220VAC
|
PF
| 0.87 @ 220Vac
| 0.56 @ 220Vac |
| LED open circuit protection | OK | OK
|
LED short circuit protection
| OK | OK |
Chip overheating protection
| Intelligent temperature control, no flicker
| Intelligent temperature control, no flicker
|
PT6913A/PT6913B Typical test parameters：
Input voltage (V)
| No capacitor scheme
| Capacitance (2.2uF) scheme
|
Efficiency(%)
| PF
| Output current(mA)
| Efficiency(%)
| PF
| Output current(mA)
|
180
| 65.1
| 0.736
| 5.2
| 95.0
| 0.542
| 9.81
|
| 200 | 83.9
| 0.813
| 13.0
| 91.9
| 0.562
| 15.86
|
| 220 | 86.9
| 0.869
| 18.7
| 86.6
| 0.556
| 19.56
|
| 240 | 83.4
| 0.908
| 22.9
| 79.0
| 0.548
| 19.81
|
| 265 | 79.0
| 0.935
| 26.4
| 72.7
| 0.540
| 19.82
|
PT6913A/PT6913B Typical applications: LED bulb lamp, LED lamp, LED fluorescent tube：
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