BA9700AF
Features
1) Output voltage can step up, step down, or invert at an arbitrary level. 2) Low current consumption. (typically 1.7m A) 3) Wide oscillation frequency range. (typically 2.8k ~ 470k Hz) 4) Built-in reference voltage current. (typically 2.57V) 5) Operates at low voltage. (minimally 3.55V) !Block diagram
NON INVERT INPUT 14 1/2 Vref 13 INVERT INPUT 12 Vref 11
6) Dead time controller restricts operation when overloaded. 7) Power switch can isolate all circuits in the IC. 8) Best suited for battery operated equipment. 9) pact 14-pin SSOP package (BA9700AFV).
POWER SW 10
N. C. 9
VCC 8
+
- Error Amp
30k 30k Vref
Voltage Regulator
BA9700A BA9700AF PWM parator Triangle Oscillator
1 D
- TIME CONT
2 RT
3 CT
4 FEED BACK
5 OUT
6 N. C.
7 GND
!Absolute maximum ratings (Ta = 25°C)
Parameter
Power supply voltage
Symbol VCC
Limits 24 600
- 1 350
- 2 350
- 3
Unit V
BA9700A
Power dissipation
BA9700AF BA9700AFV
Pd m W
Operating temperature Storage temperature
Topr...
