G5997 Global Mixed-mode Technology Step-up Controller for 12 Strings 60mA White LED Driver Features General Description The G5997 is current mode DC/DC controller that drives up to 12 strings connected in parallel configuration with multiple LEDs in each string connected in series. External current sense resistor and slope compensation resistor make it flexible for various applications. PWM dimming is implemented with external PWM input signal or DC input signal. The dimming frequency can be programmed by an external setting capacitor. 5V~30V input voltage range High Power Current Mode DC/DC boost Controller Drives up to 12 strings in parallel 100Hz~2KHz PWM or DC Input True PWM Dimming 2.5% Current Matching Accuracy Between Strings Programmable Switching Frequency Programmable Slope Compensation Input Under Voltage Protection Output Short Circuit Protection Hiccup Mode Protection for Output Over Voltage Protection and LED String Short Protection Thermal Shutdown Available in SOP-28, TSSOP-28 (FD) and TQFN5X5-28 Package The G5997 includes hiccup protection from short circuits, with automatic recovery after the fault condition is cleared. The G5997 is available in a SOP-28, TSSOP-28 (FD) and TQFN5X5-28 package. Applications Desktop LCD Flat Pannel Displays Flat Pannel Video Displays LCD TVs and Monitors Ordering Information ORDER NUMBER MARKING TEMP. RANGE PACKAGE (Green) G5997P61U G5997 -20°C to +85°C SOP-28 G5997F41U G5997R61U G5997 5997 -20°C to +85°C -20°C to +85°C TSSOP-28 (FD) TQFN 5X5-28 Note: P6:SOP-28 F4:TSSOP-28 (FD) R6:TQFN 5X5-28 1 : Bonding Code U : Tape & Reel GATE VDD 3 VFAULT 26 GATE COMP 4 25 PGND COMP 4 25 PGND OVP 26 LED1 3 22 VDD CS 27 23 28 NC 2 PGND 1 VIN 25 NC VFAULT 24 LGND 27 VFAULT 28 2 GATE 1 VIN 26 LGND NC G5997 28 G5997 27 Pin Configuration NC 1 21 LED2 VIN 2 20 LED3 VDD 3 19 LED4 EN 5 24 CS EN 5 24 CS DBRT 6 23 OVP DBRT 6 23 OVP GND 7 22 LED1 GND 7 22 LED1 COMP 4 RT 8 21 LED2 RT 8 21 LED2 ISET EN 5 DBRT 6 16 LED7 GND 7 15 LED8 SOP-28 LED8 TSSOP-28 (FD) 14 15 LED9 LED9 14 13 LED7 LED8 LED10 15 12 14 LED6 16 11 LED9 17 LED7 LED11 LED6 16 LED12 17 LED3 LED4 LED5 10 12 13 20 19 18 BOSC LED11 LED10 11 9 BOSC 10 LED12 11 LED11 12 LED10 13 8 LED3 LED4 LED5 9 20 19 18 RT 9 10 Thermal Pad ISET ISET BOSC LED12 Thermal Pad 18 LED5 17 LED6 G5997 TQFN5X5-28 Note: Recommend connecting the Thermal Pad to the Ground for excellent power dissipation. TEL: 886-3-5788833 http://www.gmt.com.tw Ver: 0.5 May 30, 2012 1 G5999 Global Mixed-mode Technology Step-up Controller for 12 Strings 120mA White LED Driver Features General Description The G5999 is current mode DC/DC controller that drives up to 12 strings connected in parallel configuration with multiple LEDs in each string connected in series. External current sense resistor and slope compensation resistor make it flexible for various applications. PWM dimming is implemented with external PWM input signal or DC input signal. The dimming frequency can be programmed by an external setting capacitor. 5V~30V input voltage range High Power Current Mode DC/DC boost Controller Drives up to 12 strings in parallel PWM or DC Input True PWM Dimming 2.5% Current Matching Accuracy Between Strings Programmable Switching Frequency Programmable Slope Compensation Input Under Voltage Protection Output Short Circuit Protection Hiccup Mode Protection for Output Over Voltage Protection and LED String Short Protection Thermal Shutdown Available in SOP-28 ,TSSOP-28 (FD) and HSOP-28 Package The G5999 includes hiccup protection from short circuits, with automatic recovery after the fault condition is cleared. The G5999 is available in a SOP-28 ,TSSOP-28 (FD) , and HSOP-28 package. Applications Desktop LCD Flat Pannel Displays Flat Pannel Video Displays LCD TVs and Monitors Ordering Information ORDER NUMBER MARKING TEMP. RANGE PACKAGE (Green) G5999P61U G5999F41U G5999P91U G5999 G5999 G5999 -20°C to +85°C -20°C to +85°C -20°C to +85°C SOP-28 TSSOP-28 (FD) HSOP-28 Note: P6:SOP-28 F4: TSSOP-28 (FD) P9: HSOP-28 1 : Bonding Code U : Tape & Reel Pin Configuration G5999 G5999 1 28 LGND NC 1 VIN 2 27 VFAULT VIN 2 28 NC 27 VFAULT VDD 3 26 GATE VDD 3 26 GATE COMP 4 25 PGND COMP 4 25 EN 5 24 CS EN 5 DBRT 6 23 OVP DBRT 6 24 CS 23 OVP GND 7 22 LED1 GND 7 RT 8 21 LED2 RT 8 ISET 9 20 LED3 19 18 LED4 LED5 17 LED6 ISET 9 20 LED3 BOSC LED12 10 19 18 LED4 LED5 LED11 LED10 12 13 17 LED6 16 LED7 BOSC 10 LED12 11 LED11 12 LED10 13 LED9 14 15 LED8 LED9 14 11 SOP-28 Thermal Pad PGND 22 LED1 21 LED2 16 LED7 15 LED8 TSSOP-28 (FD) Note: Recommend connecting the Thermal Pad to the Ground for excellent power dissipation. NC 1 VIN 2 VDD 3 28 NC 27 VFAULT 26 GATE COMP 4 25 EN 5 DBRT GND 6 PGND 24 CS 23 OVP 7 22 EP LGND EP G5999 LED1 8 21 ISET 9 BOSC 10 LED12 11 20 LED3 19 18 LED4 LED5 17 LED6 RT LED11 12 LED10 13 LED2 16 LED7 15 LED8 LED9 14 HSOP-28 TEL: 886-3-5788833 http://www.gmt.com.tw Ver: 0.5 Sep 26, 2011 1