STMicroelectronics PM6600
The PM6600 consists of a high efficiency monolithic boost converter and six controlled current generators (ROWs), specifically designed to supply LEDs arrays used in the backlight of LCD panels. The device can manage a nominal output voltage up to 36 V (i.e. The generators can be externally programmed to sink up to 32 mA and they can be dimmed via a PWM signal (1% dimming dutycycle at 20 kHz can be managed).| Part No. | PM6600 |
|---|---|
| Datasheet | PM6600 Download |
| Manufacturer |  STMicroelectronics |
| Description | 6-rows 30mA LED driver |
| Buy | Stock & Price |
FEATURES
● Boost section – 4.7 V to 28 V input voltage range – Internal power MOSFET – Internal +5 V LDO for device supply – Up to 36 V output voltage – Constant frequency peak current-mode control – 200 kHz to 1 MHz adjustable switching frequency – External synchronization for multi-device application – Pulse-skip power saving mode at light load – Programmable soft-start – Programmable OVP protection – Stable with ceramic output capacitors – Thermal shutdown● Backlight driver section – Six rows with 32 mA maximum current capability (adjustable) – Up to 10 WLEDs per row – Unused rows detection – 500 ns minimum dimming time (1% minimum dimming duty-cycle at 20 kHz) – ± 2.1% current accuracy – ± 2% current matching between rows – LED failure (open and short circuit) detection VFQFPN-24 4 mm x 4 mm
DESCRIPTION
10 White-LEDs per ROW). The device allows to detect and manage the open and shorted LED faults and to let unused ROWs floating. Basic protections (output over-voltage, internal MOSFET over-current and thermal shutdown) are provided.
