R1224N122G RICOH [RICOH electronics devices division], R1224N122G Datasheet - Page 6
R1224N122G
Manufacturer Part Number
R1224N122G
Description
PWM/VFM step-down DC/DC Converter
Manufacturer
RICOH [RICOH electronics devices division]
Datasheet
1.R1224N122G.pdf
(42 pages)
- Current page: 6 of 42
- Download datasheet (2Mb)
6
•
R1224N
Istandby
Symbol
Maxdty
∆
V
V
∆
∆
∆
tstart
tprot
fosc
I
V
R1224N102X (X=G/H/M)
I
V
fosc/
I
V
Topt
Topt
I
I
V
EXTH
UVLO1
UVLO2
V
EXTL
DD1
CEH
CEL
CEH
CEL
FB
IN
FB
/
Operating Input Voltage
Feedback Voltage
Feedback Voltage
Temperature Coefficient
Oscillator Frequency
Oscillator Frequency
Temperature Coefficient
Supply Current 1
Standby Current
EXT “H” Output Current
EXT “L” Output Current
CE “H” Input Current
CE “L” Input Current
CE “H” Input Voltage
CE “L” Input Voltage
Oscillator Maximum Duty Cycle
UVLO Voltage
UVLO Release Voltage
Delay Time by Soft-Start function
Delay Time for protection circuit
Item
V
−40°C
V
M Version
G Version
H Version
−40°C
V
M Version
G Version
H Version
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
IN
IN
IN
IN
IN
CE
IN
CE
IN
IN
IN
IN
IN
IN
IN
CE
IN
FB
=V
=V
=V
=18.5V, V
=8V, V
=8V, V
=V
=V
=8V, V
=8V, V
=V
=V
=2.5V, I
=V
=2.5V→0V
=8V
=8V
=0V→2.5V
CE
CE
CE
CE
FB
CE
CE
CE
< =
< =
=18.5V, V
=3.5V, I
=3.5V, I
=V
=V
=2.5V to 1.5V, V
=1.5V to 2.5V, V
=2.5V
Topt
Topt
EXT
EXT
FB
FB
FB
FB
FB
Conditions
=0V
=0V
=18.5V
=7.9V, V
=0.1V, V
=18.5V
=−10mA
CE
< =
< =
=0V, V
FB
FB
85°C
85°C
=−100mA
=−100mA
CE
=0V
FB
FB
FB
=8V,
=0V,
=0V
FB
FB
=0V
=0V
Min.
0.98
−0.5
144
240
400
100
2.3
1.5
1.8
20
5
5
V
±100
Typ.
1.00
±0.2
+0.1
180
300
500
−17
0.0
0.0
0.0
2.0
UVLO1
20
30
40
30
10
15
Max.
18.5
1.02
216
360
600
−10
0.5
0.5
0.3
2.2
2.3
50
60
80
20
30
Topt=25°C
ppm/°C
%/°C
Unit
kHz
mA
mA
ms
ms
µA
µA
µA
µA
%
V
V
V
V
V
V
Related parts for R1224N122G
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
Part Number:
Description:
Microprocessor power management with Watchdog Timer
Manufacturer:
RICOH [RICOH electronics devices division]
Datasheet:
Part Number:
Description:
150mA VOLTAGE REGULATOR (Wide Input Voltage Range)
Manufacturer:
RICOH [RICOH electronics devices division]
Datasheet:
Part Number:
Description:
POWER MANAGEMENT ICs MARK INFORMATIONS R1210N SERIES MARK SPECIFICATION
Manufacturer:
RICOH [RICOH electronics devices division]
Datasheet:
Part Number:
Description:
PWM Step-up DC/DC Converter
Manufacturer:
RICOH [RICOH electronics devices division]
Datasheet:
Part Number:
Description:
SOT23-5 PWM Step-up DC/DC Converter?
Manufacturer:
RICOH [RICOH electronics devices division]
Datasheet:
Part Number:
Description:
Step-up DC/DC Controller
Manufacturer:
RICOH [RICOH electronics devices division]
Datasheet:
Part Number:
Description:
STEP-UP DC/DC CONTROLLER
Manufacturer:
RICOH [RICOH electronics devices division]
Datasheet:
Part Number:
Description:
STEP-UP DC/DC CONTOLLER
Manufacturer:
RICOH [RICOH electronics devices division]
Datasheet:
Part Number:
Description:
STEP-UP DC/DC CONTOLLER
Manufacturer:
RICOH [RICOH electronics devices division]
Datasheet:
Part Number:
Description:
Step-up DC/DC converter for White LED Backlight
Manufacturer:
RICOH [RICOH electronics devices division]
Datasheet:
Part Number:
Description:
Step-up DC/DC converter for Whilte LED Backlight
Manufacturer:
RICOH [RICOH electronics devices division]
Datasheet:
Part Number:
Description:
Step-down DC/DC Converter with Voltage Detector
Manufacturer:
RICOH [RICOH electronics devices division]
Datasheet:
Part Number:
Description:
PWM/VFM Step-down DC/DC Converter
Manufacturer:
RICOH [RICOH electronics devices division]
Datasheet:
Part Number:
Description:
PWM/VFM Step-down DC/DC Converter with Synchronous Rectifier
Manufacturer:
RICOH [RICOH electronics devices division]
Datasheet: