AN8041S

Voltage Regulators AN8041S Liquid crystal backlight control IC s Overview The AN8041S is an inverter control IC for liquid crystal backlight using PWM method. The output voltage of DC-DC converter and the current of cathode-ray tube can be controlled by using two error amplifiers, so that the system is designed easily. Since the n-channel MOSFET can be directly driven, it is possible to construct a highly effective power supply. 10.1±0.3 16 9 Unit: mm 4.2±0.3 6.5±0.3 (0.15) 0.3 1 8 1.5±0.2 (0° to 10°) s Features Operating supply voltage: 3.6 V to 34 V * 1.27 0.40±0.25 (0.605) Totem pole output circuit: Output current of ±500 mA Seating plane Built-in bootstrap circuit N-channel power MOSFET can be directly driven SOP016-P-0225A Built-in two error amplifier circuits allow both the voltage and current control Incorporating on/off functions (active-high control input, standby mode current is 5 µA or less) Built-in timer latch short-circuit protection circuit Maximum oscillation frequency: 500 kHz 0.1±0.1 Seating plane Note) *: The voltage is limited to the range of 3.6 V to 17 V if used in a step-down circuit. s Applications LCD displays, digital still cameras, and PDAs VREF DTC s Block Diagram 1 4 3 2 VREF 2.57 V Off 16 On/off active-high R S R S.C.P. 5 S Q Q Constant current source OSC Bootstrap 15 VCC CT RT 14 13 8 6 PWM comp. CB Out FB1 IN+1 IN−1 FB2 IN+2 IN−2 U.V.L.O. Latch Q S.C.P. comp. Error amp. 1 7 9 11 Error amp. 2 G...