M51996AFP 데이터 시트보기 (PDF) - Renesas Electronics

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M51996AFP

Switching Regulator Control

Renesas Electronics 

M51996AP/AFP

Block

Oscillator

SOFT

Item

Oscillating frequency

Maximum ON duty

Upper limit voltage of

oscillation waveform

Lower limit voltage of

oscillation waveform

Voltage difference

between upper limit

and lower limit of OSC

waveform

T-ON terminal voltage

T-OFF terminal voltage

Oscillating

frequency

during

SOFT

operation

VSOFT =

5.5 V

VSOFT =

2.5 V

VSOFT =

0.2 V

SOFT terminal input

current

SOFT terminal

discharging current

Symbol

fOSC

TDUTY

VOSCH

VOSCL

∆VOSC

VT-ON

VT-OFF

fOSCSOFT

ISOFTIN

ISOFDIS

REG

Output

Detection

Regulator output

voltage

Output low voltage

Output high voltage

Output voltage rise

time

Output voltage fall time

Detection voltage

DET terminal input

current

Voltage gain of

detection amp

VREG

VOL1

VOL2

VOL3

VOL4

VOH1

VOH2

TRISE

TFALL

VDET

IINDET

GAVDET

Min.

170

47

3.97

1.76

(VCC = 18 V, Ta = 25°C, unless otherwise noted)

Limits

Typ. Max. Unit

Test Conditions

188

207 kHz RON = 20 kΩ, ROFF = 17 kΩ

50

53

% CF = 220 pF, –5 ≤ Ta ≤ 85°C

4.37 4.77

V RON = 20 kΩ, ROFF = 17 kΩ

CF = 220 pF

1.96 2.16

V

2.11

2.41 2.71

V

3.8

2.9

170

111

19.0

–0.5

1

6.8

—

—

—

—

16.0

15.5

—

—

2.4

—

30

4.5

3.5

188

131

23.3

–0.1

3.3

7.8

0.04

0.7

0.85

1.3

16.7

16.5

60

40

2.5

1.0

40

5.4

4.2

207

151

27.0

—

—

8.8

0.4

1.4

1.0

2.0

—

—

—

—

2.6

3.0

—

V RON = 20 kΩ

V ROFF = 17 kΩ

kHz RON = 20 kΩ, ROFF = 17 kΩ

CF = 220 pF

µA VSOFT = 1 V

mA Discharge current of SOFT

terminal at VCC less than

VCC(STOP)

V

V VCC = 18 V, IO = 10 mA

V VCC = 18 V, IO = 100 mA

V VCC = 5 V, IO = 1 mA

V VCC = 5 V, IO = 100 mA

V VCC = 18 V, IO = –10 mA

V VCC = 18 V, IO = –100 mA

ns

ns

V

µA VDET = 2.5 V

dB

REJ03D0836-0201 Rev.2.01 Nov 14, 2007

Page 6 of 35

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