PA5910_15 Datasheet, PDF (1/9 Pages) Protek Devices – SWITCHING TYPE LED DRIVER

ANALOG PRODUCTS DIVISION
Features
• Constant current LED driver:
• 20mA to 2A programmable
• Step-up or step-down operation
• >90 efficiency
• 2.5V to 450V
• Up to 2MHz switching frequency
Applications
• DC/DC LED Drivers
• AC/DC LED Drivers
• RGB Backlighting
• Flat Panel Backlighting
• Signs and Decorative LED Lighting
PA5910
Description
Switching Type LED Driver.
The PA5910 is a high efficiency LED driver control
Integrated Circuit.
It is a universal control LED driver that can be
configured to operate as a step-up or step-down
LED driver.
The input and output voltage can be extended
beyond 450V.
The PA5910 uses a fixed off time and 2MHz
switching frequency can be achieved.
The minimum off time can be set by an external
capacitor and resistor. R_OFF and C_OFF
The LED current is programmable from 20mA to
2.0A and is set by an external resistor.
Pin Designation
1
2
3
4
Description
1：Ground
8
7
2：Chip Enable
6
5
3：No connection
Symbol
V_SS
Description
8：Power supply (2V-6.5V)
Symbol
V_DD
EN ^{7：Off time selection}
T_OFF
NC ^{6：LED Current sensing}
CS
4：Voltage feedback
GND ^{5：Driver}
DRV
Absolute Maximum Ratings
Type
Symbol
Description
Voltage
Thermal
ESD
V_MAX Maximum voltage on V_DD pins
V_MIN-MAX Voltage range on EN, CS and FB pins
T_MIN-MAX Operation temperature range
T_STORAGE Storage temperature range
V_ESD ESD voltage for human body model
Value
Unit
8
V
-0.3-V_DD+0.3
V
-20-85
o_C
-40-165
o_C
2000
V
1
561 E. Elliot Road #175 Chandler, AZ 85225 Tel: [phone]. Fax: [phone]
95220 Rev.0. 04/09
www.protekanalog.com
NOT FOR USE IN LIFE SUPPORT SYSTEMS