R1211D002D 查看數據表（PDF） - RICOH Co.,Ltd.

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R1211D002D

STEP-UP DC/DC CONTROLLER

RICOH Co.,Ltd. 

R1211x

• R1211x002B

Symbol

VIN

VFB

∆VFB/∆T

IFB

fOSC

∆fOSC/ ∆T

Item

Operating Input Voltage

VFB Voltage Tolerance

VFB Voltage

Temperature Coefficient

VFB Input Current

Oscillator Frequency

Oscillator Frequency

Temperature Coefficient

IDD1

Supply Current 1

maxdty

REXTH

REXTL

IDLY1

IDLY2

Maximum Duty Cycle

EXT "H" ON Resistance

EXT "L" ON Resistance

Delay Pin Charge Current

Delay Pin Discharge Current

VDLY

Delay Pin Detector Threshold

TSTART Soft-start Time

VUVLO1 UVLO Detector Threshold

VUVLO2

ISTB

ICEH

ICEL

VCEH

VCEL

UVLO Detector Hysteresis

Standby Current

CE "H" Input Current

CE "L" Input Current

CE "H" Input Voltage

CE "L" Input Voltage

Conditions

VIN=3.3V

−40°C <= Topt <= 85°C

VIN=6V, VFB=0V or 6V

VIN=3.3V, VDLY=VFB=0V

−40°C <= Topt <= 85°C

VIN=6V, VDLY=VFB=0V,

EXT at no load

VIN=3.3V, EXT "H" side

VIN=3.3V, IEXT=−20mA

VIN=3.3V, IEXT=20mA

VIN=3.3V, VDLY=VFB=0V

VIN=VFB=2.5V, VDLY=0.1V

VIN=3.3V, VFB=0V,

VDLY=0V→2V

VIN=3.3V

VIN=3.3V→0V,

VDLY=VFB=0V

VIN=0V→3.3V,

VDLY=VFB=0V

VIN=6V, VCE=0V

VIN=6V, VCE=6V

VIN=6V, VCE=0V

VIN=6V, VCE=0V→6V

VIN=2.5V, VCE=2V→0V

Min.

2.5

0.985

Typ.

1.000

Topt=25°C

Max. Unit

6.0

V

1.015 V

±150

ppm/°C

−0.1

0.1

µA

595 700 805 kHz

±1.4

kHz/°C

600 900 µA

82

90

94

%

5

10

Ω

3

6

Ω

2.5

5.0

7.5

µA

2.5

5.5

9.0

mA

0.95 1.00 1.05

V

4.5 9.0 13.5 ms

2.1

2.2

2.3

V

0.08 0.13 0.18

V

0

−0.5

−0.5

1.5

1

µA

0.5

µA

0.5

µA

V

0.3

V

5

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