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KTD3156B
6-Ch Step-Up LED Driver with PWM-Control Mixed-Mode Dimming, low duty dimming
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Input voltage range: 2.7V to 5.5V
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Drive up to 60 LEDs (10S6P)
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High efficiency LED driver, up to 90%
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High frequency step-up converter (1000kHz)
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Integrated 40V power MOSFET
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Integrated 6-channel current sinks
- Up to 30mA/ch
- 0.5% Typ. current matching
- 2% Typ. current accuracy at 20mA
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Wide input PWM dimming frequency range
- 300Hz to 30KHz
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Programmable Mixed-Mode Dimming controls
- Mixed analog dimming and PWM dimming
- Selectable transition point : 25% or 12.5% input PWM duty cycle
- Selectable output PWM dimming frequency : fixed 62.5kHz or following input PWM dimming frequency
- Channel current phase shift in fixed 62.5kHz output PWM dimming mode
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Input PWM glitch filter
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LED open/short protection
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Adjustable over-voltage protection
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Cycle-by-cycle inductor current limit (2.5A)
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0.1 µA shutdown current
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Pb-free TQFN33-16 and WLCSP-16 Package
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-40°C to +85°C Temperature Range
Applications
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Tablet Backlight
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Netbook/Notebook Backlight
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Portable media players
Key Electrical Specifications
| Vin(Min) | Vin(Max) | Maximum # of LED Channel | Channels | Control Type | Package |
| 2.7V | 5.5V | 10 | 16 | PWM | TQFN33-16, WLCSP-16 |
Typical Application Diagram
