BA9700A Rohm, BA9700A Datasheet
BA9700A
Available stocks
Related parts for BA9700A
BA9700A Summary of contents
Page 1
... Storage temperature * 1 BA9700A: Reduced by 4.8 mW for each increase 1˚C over 25˚ BA9700AF: Reduced by 4.4 mW for each increase 1˚C over 25˚ BA9700AFV : Reduced by 3.5 mW for each increase 1˚C over 25˚ When mounted on a 5.0´5.0´1.6 mm glass epoxy board. BA9700A / BA9700AF / BA9700AFV 6) Dead time controller restricts operation when overloaded ...
Page 2
... Input bias current 〈PWM comparator section〉 Threshold voltage 1 Threshold voltage 2 〈Output section〉 Output transistor leakage current Output saturation voltage 〈Total device〉 Quiescent current Standby current Operating voltage BA9700A / BA9700AF / BA9700AFV = 5.0V 10kΩ, and Symbol Min. Typ. Max. Unit V 2 ...
Page 3
... COLLECTOR Application examples V IN GND 8 2.57V Voltage 11 Regulator 30k 13 1.29V 30k R 1 43k ERROR AMP − 680p 15k 0.047µ 7 BA9700A / BA9700AF / BA9700AFV Fig.1 C 1000p R 15k 470µ 47k Triangle Oscillator V ref PWM COMPARATOR 1 C 1µ 15k R 20k 4 5 Fig.2 Step-down converter ...
Page 4
... GND 8 Voltage 2.57V 11 Regulator 30k 13 1.29V 30k R 1 39k ERROR AMP + 14 − 4. 7.5k C 680p 2 4 0.047µ 7 BA9700A / BA9700AF / BA9700AFV C 1000p R 10k 47k Triangle Oscillator V ref PWM COMPARATOR 1 C 1µ 22k R 39k 4 5 Fig.3 Inverting converter C 1000p R 10k R SW ...
Page 5
... Regulator ICs Basic application board patterns and component arrangemrnts Fig.6 Inverting converter (BA9700A) Fig.7 Step-up converter (BA9700A) BA9700A / BA9700AF / BA9700AFV C 2 BA9700A V IN GND SW + BA9700A - 1 Fig.5 Step-down converter C 2 BA9700A GND + C 2 BA9700A GND + ( ) ( ) + + OUT + GND OUT GND BA9700A - OUT GND ...
Page 6
... FREQUENCY (Hz) Fig.11 Phase and gain vs. frequency for the error amplifier BA9700A / BA9700AF / BA9700AFV 1M 100k = 20kΩ 10k 1k 100p 1000p 0.01µ 0.1µ CT (F) Fig.9 Oscillation frequency characteristic vs. triangular wave oscillator resistance (2) 10M 4.00 3 ...
Page 7
... Regulator ICs External dimensions (Units : mm) BA9700A 19.4±0 7.62 0°∼15° 2.54 0.5±0.1 DIP14 BA9700AFV 5.0±0 0.65 0.22±0.1 0.3Min. SSOP - B14 BA9700A / BA9700AF / BA9700AFV BA9700AF 8.7±0 1.27 0.4±0.1 SOP14 0.1 0.3Min. 0.15 ...