BA9741A

UTC BA9741A LINEAR INTEGRATED CIRCUIT TWO-CHANNEL SWITCHING REGULATOR CONTORLLER DESCRIPTION The UTC BA9741A is a two-channel switching regulator controllers that use the PWM method. It can be used for DC to DC conversion for step-up, step-down, and inverting. The IC comes in a compact package, making it ideal for use in portable equipment. SOP-16 FEATURES *High-accuracy reference voltage circuit (±1%). *Time-latch, short-circuit protection circuit. *Miss-operation prevention circuit for low-voltage input *Reference voltage with output (2.5V) *Rest period adjustment is possible over the entire duty *range. TSSOP-16 APPLICATION *DC/DC converters for video cameras and notebook computers etc. DIP-16 PIN CONFIGURATIONS CT RT 1 2 16 15 VREF SCP ERROR AMPLIFIER 2 NON1 3 ERROR AMPLIFIER 1 INV1 4 FB1 DT1 OUT1 GND 14 NON2 13 INV2 12 11 10 9 FB2 DT2 OUT2 Vcc 5 6 7 8 UTC UNISONIC TECHNOLOGIES CO., LTD. 1 QW-R103-019,A Free Datasheet http://www.datasheet4u.com/ UTC BA9741A PIN DESCRIPTIONS PIN NO. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 LINEAR INTEGRATED CIRCUIT PIN NAME CT RT NON1 INV1 FB1 DT1 OUT1 GND Vcc OUT2 DT2 FB2 INV2 NON2 SCP VREF External timing capacitor External timing resistor Positive input for error amplifier 1 Negative input for error amplifier 1 Error amplifier 1 output Output 1 dead time/soft start setting Output 1 Ground Power supply Output 2 Output 2 dead time / soft start setting Error amplifier 2 output Negative input for error amplifier 2 Positi...