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| Prototype Pursuing low power consumption and high efficiency by New Generation CMOS process DC-DC Converter Controller for Digital Still Camera / AN30210A ! Overview The AN30210A is a DC-DC converter control IC that features lowvoltage operation and has a 5 V output channel applicable for self bias and six output channels as PWM DC-DC converter control. This IC is composed of three step-up outputs, one step-down output, one inverted output and two outputs for a transformer drive. Minimal operating supply voltage of this IC is as low as 1.5 V,so that it can operate with 2 dry-batteries. A high precision reference voltage of 1% tolerance is obtained by using synchronized operation for all channels and synchronized rectification on the output circuit of step-down voltage. Direct MOSFET drive is available. Unit: mm 8.20 0.08 (8.00) 48 49 33 32 (8.00) 8.20 0.08 4-C0.50 64 1 16 17 0.10 0.10 M 0.10 0.60 0.10 (1.10) 1 64 (7.00) (3.35) SEATING PLANE (0.65) (1.10) (7.00) ( 2.00) (depth 0.07) (4.00) (4.00) (0.65) 16 17 ! Feature (0 NO RESIN AREA 33 48 " Operating supply voltage range : 1.5 V to 7.2 V 0.40 0.16 " High-precision reference voltage circuit 0.08 --- Vref : 1% HQFN-64PIN " PWM control and synchronized operation for all channels " Synchronized rectification on the output circuit of step-down voltage " On/off (sequence control) pins for all channels or each channel for easy sequence control setup " Independent soft start-up pin for each cannel " Timer latch short-circuit protection circuit for each channel " Setting of a dead time with an external resistor " Fixed duty factor : 86% Adjustable duty from 0% to 100% with an external resistor " Realization of low power consumption and high speed operation by 0.6 um CMOS process .2 5) (0 .1 5) 0.06 49 (3.35) 32 ! Specification of output channel CH 1 2 3 4 5 6 System Step-up Step-up Step-up or Step-down Step-down Transformer Drive Transformer Drive Step-up Sync. rectification Power Device Output Voltage 5V 5V 3.3 V 1.8 V or 1.5 V 15 V -8 V 12.4 V 3.7 V 7V Output Current 50 mA 1A 0.5 A 0.3 A 30 mA 10 mA 30 mA 60 mA 100 mA Note Self bias voltage for IC For mechanic For I/F Memory For DSP For CCD For LCD For Back Light ! Applications " Digital still camera The products and specification are subject to change without any notice. Please ask for the latest Product Standards to guarantee the satisfaction of your product requirements. 1.Kotari Yakemachi, Nagaokakyo, Kyoto, 617-8520 Japan M00452AE Tel. (075)951-8151 http://www.mec.panasonic.co.jp New publication, effective from Mar.30.2001 0.20 0.77 ! Block Diagram CMPO1 VREF SCP 1.40V 0.55V H-Start RT CT CTL0 3.3V SCP0 VDET SVCC 5V VBAT Vref 1.26V1% VREF VCC -UVLO (Lower:L) OSC Over Voltage Det. Step up Temp Det (High Temperature:H) Q LATCHR Q S (POR) (POR) (Over:L) S SCP0 Q R DisC VBAT-UVLO VBATL 1.5V/2.5V (Lower:L) DI DEI VREF (DisC) 1.6V PRE-OSC (START-UP) VREF DO DRV0 PGND0 PWM0 VREF VCC Step-up for itself VCC 5V/0.05A SCP COMP VO0 VREF ERROR AMP0 ASIST SS0 VO0 EO0 IN-0 PVCC1 VBAT Step-up 1.6V EO1 VO1 IN-1 CTL1 H-Start EO2 CH2D VREF VREF VREF PWM1 OUT1 IN-1 CH1 5V/1A (16V/30mA) ERROR AMP1 PVCC1-2 PGND1 SS1 UDS HO2 PWM2 DEAD TIME CONT MO2 PVCC2 Step-up or Step-down This case is step-up LO2 PGND2 PGND2 VO2 IN-2 CTL2 H-Start CH3S EO3 VO3 IN-3 CTL3 H-Start VREF ERROR AMP2 IN-2 CH2 3.3V/0.5A SS2 PVCC3 PWM3 DEAD TIME CONT H03 Step-down PVCC2 VREF L03 VREF IN-3 CH 3 1.5V/0.3A 1.8V/0.3A ERROR AMP3 VREF PWM4 PGND3 SS3 SS VBAT PVCC2 Transformer drive CH4-1 CCD MAIN (15V/30mA) EO4 VO4 IN-4 CTL4 H-Start VREF VREF PVCC2 DRV4 IN+4 CH4-2 CCD SUB (-8V/10mA) Transformer drive ERROR AMP4 PWM5 PGND2 SS4 VBAT PVCC2 EO5 VO5 IN-5 CTL5 H-Start EO6 VO6 IN-6 CTL6 H-Start ERROR AMP6 VREF VREF ERROR AMP5 PWM6 VREF VREF CH5-1 LCD (12.4V/30mA) DRV5 IN-5 CH5-2 LCD (3.7V/60mA) PGND2 PVCC2 SS5 DRV6 VBAT Step-up CH6 Back Light 7V/100mA PGND2 IN-6 SS6 SGND |
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