BD9853AFV

Technical Note

2/16

www.rohm.com

2009.05 - Rev.A

© 2009 ROHM Co., Ltd. All rights reserved.

●

Electrical Characteristics (Unless otherwise specified Ta=25℃,Vcc=12V,fosc=1000kHz,STB=3V)

Parameter

Symbol

Limits

Unit

Conditions

Min.

Typ.

Max.

【

Whole Device】

Standby Current

Iccst

－

0

5

μASTB=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

Vregb

V

Output Current Capability

Iregb

100

－

－

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

－

－

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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