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REV. C

○Electrical characteristics (Unless otherwise specified, Ta=25℃，VCC=6V)

Item

Symbol

limits

Unit

Conditions

Min.

Typ.

Max.

【Triangular wave oscillator block】

Oscillation frequency

95

106

117

kHz

Frequency variation

―

0

1

%

Vcc=3.6V→35V

【Soft-start block】

SS pin source current

1.4

2

2.6

μA

SS=0.5V

SS pin sink current

5

12

―

mA

SS=0.5V

【Dead time adjustable circuit block】

DT pin input bias current

―

0.1

1

μA

DT=1.75V

DT pin sink current

1

3.3

―

mA

DT=1.75V, (OCP+)-(OCP-)=0.5V

【UVLO block】

Threshold voltage

3.0

3.2

3.4

V

Vcc when rise time

Hysterisis

―

0.15

0.25

V

【Error Amp block】

Non-Inverting

input

reference

0.99

1

1.01

V

INV=FB

Reference voltage variation

dVinv

－

1

6

mV

Vcc=3.6V→35V

INV input bias current

―

0

1

μA

INV=1V

Open loop gain

AV

70

85

―

dB

Output FB voltage (Hi)

2.30

―

VREF

V

Output FB voltage (Low)

－

0.6

1.3

V

Output sink current

0.5

1.5

－

mA

FB=1.25V , INV=1.5V

Output source current

50

105

－

μA

FB=1.25V , INV=0V

【PWM comparator】

Input threshold voltage

（fosc=100kHz）

1.4

1.5

1.6

V

On duty 0%

1.9

2

2.1

V

On duty 100%

【Output block】

Output ON resistance H

－

4

10

Ω

Output ON resistance L

－

3.3

10

Ω

C5V clamp voltage

4.5

5

5.5

V

【Over current protection circuit (OCP) block】

OCP threshold voltage

0.04

0.05

0.06

V

Voltage between (OCP+)-(OCP-)

OCP-input bias current

－

0.1

10

μA

Delay time for OCP

tdocpth

―

200

400

nS

Min. hold time for OCP

tdocpre

0.8

1.6

―

mS

【Stand-by switch block】

Threshold voltage for each CH stop

1.1

1.25

1.4

V

DT Pin H/L

Stand-by mode setting voltage range

0

－

0.5

V

Slave mode setting voltage range

2.4

2.5

2.6

V

Active(Master) mode setting voltage range

3

－

V

STB current

―

70

100

μA

STB=6V

【Total device】

Stand-by current

―

0

1

μA

STB=0V

Average current consumption

1.5

3

6

mA

INV=0V, FB=H, DT=1.75V

※Not designed for radiation resistance.