BD9853AFV Datasheet, PDF (2/17 Pages) Rohm – Single/Dual-output High-frequency Step-down Switching Regulato (Controller type)

BD9853AFV
Technical Note
●Electrical Characteristics (Unless otherwise specified Ta=25℃,Vcc=12V,fosc=1000kHz,STB=3V)
Parameter
Symbol
Min.
Limits
Typ.
Unit
Max.
Conditions
【Whole Device】
Standby Current
Iccst
－
0
5
μA STB=0V
Circuit Current
Icc
－
3.2
5.2
mA INV1,INV2=2.5V
【Regulator for Driver REGA】
Output Voltage
Vrega
4.5
5.0
5.5
V
Output Current Capability
Irega
－
－
-100 mA Vrega > 4.5V
【Regulator for Driver REGB】
Output Voltage
Output Current Capability
Vregb
Iregb
V_CC-5.5
100
V_CC-5.0
－
V_CC-4.5
－
V
mA Vregb < Vcc-4.5V
【Oscillator】
Oscillator Frequency
fosc
900
1000
1100
kHz
RRT=8.2kΩ
OUTH=2200pF,OUTL=1000pF
Oscillator Frequency Coefficient1 Dfosc1
-2
0
2
% Vcc=4.5 to 5V
Oscillator Frequency Coefficient2 Dfosc2
-2
0
2
% Vcc=5 to 18V
【Error Amplifier】
Threshold Voltage
Vthea 0.79
0.80
0.81
V
Input Bias Current
Ibias
-230
-115
－
nA
Voltage Gain
Av
60
80
100
dB DC GAIN
Max. Output Voltage
Vfbh Vrega-0.85
－
－
V
Min. Output Voltage
Vfbl
－
－
0.85
V
Output Sink Current
Isink
2
11
-
mA INV=2.5V, FB=2.5V
Output Source Current
Isource
-
-15
-2
mA INV=0V, FB=2.5V
【PWM Comparator】
0% Threshold Voltage
Vth0
1.4
1.5
1.6
V FB Voltage
100% Threshold Voltage
Vth100 2.4
2.5
2.6
V FB Voltage
* This product is not designed for the protection against radioactive rays.
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2009.05 - Rev.A