R1211D002B RICOH [RICOH electronics devices division], R1211D002B Datasheet - Page 5

• Manufacturer Part Number: R1211D002B
• Description: STEP-UP DC/DC CONTROLLER
• Manufacturer: RICOH [RICOH electronics devices division]

•
∆f
Symbol
∆V
R1211x002B
maxdty
V
V
T
R
OSC
R
V
V
V
I
I
f
I
I
V
START
I
I
V
DLY1
DLY2
UVLO1
UVLO2
I
OSC
FB
DD1
STB
CEH
CEL
EXTH
EXTL
CEH
FB
DLY
CEL
FB
IN
/ ∆T
/∆T
Operating Input Voltage
V
V
Temperature Coefficient
VFB Input Current
Oscillator Frequency
Oscillator Frequency
Temperature Coefficient
Supply Current 1
Maximum Duty Cycle
EXT "H" ON Resistance
EXT "L" ON Resistance
Delay Pin Charge Current
Delay Pin Discharge Current
Delay Pin Detector Threshold
Soft-start Time
UVLO Detector Threshold
UVLO Detector Hysteresis
Standby Current
CE "H" Input Current
CE "L" Input Current
CE "H" Input Voltage
CE "L" Input Voltage
FB
FB
Voltage Tolerance
Voltage
Item
V
−40°C
V
V
−40°C
V
EXT at no load
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
DLY
IN
IN
DLY
IN
DLY
IN
IN
IN
IN
IN
=3.3V
=6V, V
=3.3V, V
=6V, V
=3.3V, EXT "H" side
=3.3V, I
=3.3V, I
=3.3V, V
=V
=3.3V, V
=3.3V
=3.3V→0V,
=0V→3.3V,
=6V, V
=6V, V
=6V, V
=6V, V
=2.5V, V
=0V→2V
=V
=V
FB
FB
FB
< =
< =
=2.5V, V
Conditions
=0V
=0V
Topt
Topt
FB
DLY
CE
CE
CE
CE
EXT
EXT
=0V or 6V
DLY
DLY
FB
=0V
=6V
=0V
=0V→6V
CE
=V
=−20mA
=20mA
=0V,
=2V→0V
=V
=V
< =
< =
FB
DLY
85°C
85°C
=0V,
FB
FB
=0V
=0V
=0.1V
0.985
Min.
0.95
0.08
−0.1
−0.5
−0.5
595
2.5
2.5
2.5
4.5
2.1
1.5
82
1.000
±150
Typ.
±1.4
1.00
0.13
700
600
5.0
5.5
9.0
2.2
90
5
3
0
1.015
Max.
1.05
13.5
0.18
805
900
6.0
0.1
7.5
9.0
2.3
0.5
0.5
0.3
94
10
6
1
Topt=25°C
R1211x
ppm/°C
kHz/°C
Unit
kHz
mA
ms
µA
µA
µA
µA
µA
µA
%
Ω
Ω
V
V
V
V
V
V
V
5