R1210N521D-TL [ETC]
SMPS Controller ; SMPS控制器\n型号: | R1210N521D-TL |
厂家: | ETC |
描述: | SMPS Controller
|
文件: | 总18页 (文件大小:179K) |
中文: | 中文翻译 | 下载: | 下载PDF数据表文档文件 |
PWM Step-up DC/DC Converter
R1210N××1× Series
APPLICATION MANUAL
NO. EA-075-0012
PWM Step-up DC/DC Converter
R1210N××1× Series
OUTLINE
The R1210N××1× Series are PWM step-up DC/DC Converter, with high accuracy, low supply current by CMOS
process.
Each of the R1210N××1× Series consists of an oscillator, a PWM circuit, a reference voltage unit, an error amplifier,
phase compensation circuit, resistors for voltage detection, a chip enable circuit. Further, includes a controller against
drastic load transient, a control transistor with low ON-Resistance, ‘LX switch’, and a protection circuit for LX switch
and an output voltage detector. R1210N××1A Series contain further a circuit for changeover oscillator frequency each.
A low ripple, high efficiency step-up DC/DC converter can be composed of this IC with only three external compo-
nents, or an inductor, a diode and a capacitor.
The R1210N Series can detect drastic change of output voltage with a circuit controller. The load transient re-
sponse is improved compared with current model, furthermore the R1210N××1A Series have another function, that is,
when the load current is small, oscillator frequency is decreased by a circuit for switching oscillator frequency from
TYP. 100kHz to 35kHz, therefore, supply current is reduced.
The built-in chip enable circuit can make the standby mode with ultra low quiescent current.
Since the package for these ICs is small SOT-23-5, high density mounting of the ICs on board is possible.
FEATURES
• External Components ................................................................. Only an inductor, a diode, and a capacitor
• Standby Current ......................................................................... TYP. 0µA
• Low Temperature-Drift Coefficient of Output Voltage.............. TYP. ±100ppm/°C
• Output Voltage............................................................................. Stepwise Setting with a step of 0.1V in the range of
2.2V to 6.0V (××1C/D)
2.2V to 3.5V (××1A)
• Two choices of Basic Oscillator Frequency................................ 100kHz (××1A/C), 180kHz (××1D)
• Small Package.............................................................................. SOT-23-5 (Mini-mold)
• High Efficiency ............................................................................ TYP. 88%
(VIN=Set Output Voltage×0.6 [V], IOUT=10mA)
• Low Ripple, Low Noise
• Built-in a driver transistor with low on-resistance
• Start-up Voltage........................................................................... MAX. 0.9V
• Basic Frequency change-over circuit (only for ××1A type)....... from TYP. 100kHz to 35kHz
1
R1210N××1×
APPLICATIONS
• Power source for battery-powered equipment.
• Power source for portable communication appliances, cameras, VCRs
• Power source for appliances of which require higher voltage than battery voltage.
BLOCK DIAGRAM
Vref Circuit
Phase Comp.
2 VOUT
VLX limiter
LX
5
Buffer
PWM Controller
OSC
fosc Control
Chip Enable
4 GND
1
CE
SELECTION GUIDE
In the R1210N Series, the output voltage, the oscillator frequency, the optional function, and the taping type for the
ICs can be selected at the user’s request.
The selection can be made by designating the part number as shown below ;
R1210N××1×-××
↑ ↑ ↑
a
b c
Code
Contents
Setting Output Voltage (VOUT) :
a
Stepwise setting with a step of 0.1V in the range of 2.2V to 6.0V (for ××1C/D version) or
2.2V to 3.5V (for ××1A version) is possible.
Designation of Oscillator Frequency
A : 100kHz with a Frequency Change-over circuit
C : 100kHz without a Frequency Change-over circuit
D : 180kHz without a Frequency Change-over circuit
b
c
Designation of Taping Type; Ex. :TR, TL (refer to Taping Specification)
“TR” is prescribed as a standard.
2
R1210N××1×
PIN CONFIGURATION
SOT-23-5
5
4
LX
GND
(mark side)
CE
1
V
OUT
NC
2
3
PIN DESCRIPTION
Pin No.
Symbol
Description
1
CE
Chip Enable Pin
2
3
4
5
VOUT
NC
Pin for Monitoring Output Voltage
No Connection
GND
LX
Ground Pin
Switching Pin (Nch Open Drain)
ABSOLUTE MAXIMUM RATINGS
Symbol
VOUT
VLX
Item
VOUT Pin Output Voltage
LX Pin Output Voltage
CE Pin Input Voltage
LX Pin Output Current
Power Dissipation
Rating
9.0
Unit
V
V
9.0
VCE
9.0
V
ILX
400
mA
mW
°C
°C
PD
250
Topt
Tstg
Operating Temperature Range
Storage Temperature Range
-40∼+85
-55∼+125
3
R1210N××1×
ELECTRICAL CHARACTERISTICS
• R1210N××1×
(Topt=25°C)
Symbol
VOUT
Item
Output Voltage
Conditions
MIN.
TYP.
MAX.
×1.025
8
Unit
VIN=VSET×0.6, IOUT=1mA
×0.975
V
V
VIN
Maximum Input Voltage
∆VOUT/
∆Topt
Step-up Output Voltage
Temperature Coefficient
-40°C≤ Topt ≤ 85°C
±100
ppm/°C
V
VIN=0V→2V
Vstart
Start-up Voltage
0.9
VOUT:1.8kΩ pull-down
∆Vstart/
∆Topt
Start-up Voltage
-40°C≤ Topt ≤ 85°C
-3.2
mV/°C
Temperature Coefficient
V
0.7
0.9
(××1A/C)
Vhold
Hold-on Voltage
VIN=2V→0V, IOUT=1mA
V (××1D)
µA
30
50
35
60
40
70
45
80
50
90
55
80
(××1A/C)
2.2V≤VSET≤2.5V
VOUT=VSET×0.96
µA
(××1D)
µA
60
(××1A/C)
2.6V≤VSET≤3.0V
VOUT=VSET×0.96
µA
90
(××1D)
µA
70
(××1A/C)
3.1V≤VSET≤3.5V
VOUT=VSET×0.96
IDD1
Supply Current1
µA
100
80
(××1D)
µA
(××1C)
3.6V≤VSET≤4.0V
VOUT=VSET×0.96
µA
110
90
(××1D)
µA
(××1C)
4.1V≤VSET≤4.5V
VOUT=VSET×0.96
µA
120
(××1D)
4
R1210N××1×
Symbol
Item
Conditions
MIN.
TYP.
MAX.
Unit
µA
70
100
130
110
150
120
170
17
(××1C)
4.6V≤VSET≤5.0V
VOUT=VSET×0.96
µA
100
80
(××1D)
µA
(××1C)
5.1V≤VSET≤5.5V
VOUT=VSET×0.96
IDD1
Supply Current1
µA
110
90
(××1D)
µA
(××1C)
5.6V≤VSET≤6.0V
VOUT=VSET×0.96
µA
130
10
(××1D)
µA
(××1A/C)
IDD2
Supply Current2
VOUT=VCE=VSET+0.5V
µA
15
24
(××1D)
Istandby
ILXleak
Standby Current
VOUT=6V, VCE=0V
VOUT=VLX=8V
0.5
0.5
µA
µA
LX Leakage Current
KHz
80
100
180
0.5
0.6
85
120
216
(××1A/C)
Maximum Oscillator
Frequency
fosc
VOUT=VCE=VSET×0.96
-40°C≤ Topt ≤ 85°C
KHz
144
(××1D)
kHz/°C
(××1A/C)
∆fosc/
∆Topt
Oscillator Frequency
Temperature Coefficient
kHz/°C
(××1D)
Oscillator Maximum Duty
Cycle
VOUT=VCE=VSET×0.96,
Maxdty
VLXlim
70
97
%
V
(VLX “L” Side)
VOUT=VCE=VSET×0.96,
VLX Limit Voltage
0.4
0.9
0.6
0.8
(VLX “L” Side)
VCEH
VCEL
ICEH
ICEL
CE “H” Input Voltage
CE “L” Input Voltage
CE “H” Input Current
CE “L” Input Current
VOUT=VSET×0.96
VOUT=VSET×0.96
VOUT=VCE=6.5V
VIN=6.5V, VCE=0V
V
V
0.3
0.1
0.1
-0.1
-0.1
0
0
µA
µA
5
R1210N××1×
Symbol
Item
Conditions
2.2V≤VSET≤2.4V
MIN.
TYP.
MAX.
Unit
70
mA
VLX=0.4V
2.5V≤VSET≤2.9V
85
mA
mA
mA
mA
mA
mA
mA
KHz
VLX=0.4V
3.0V≤VSET≤3.4V
100
120
140
150
170
190
10
VLX=0.4V
3.5V≤VSET≤3.9V
VLX=0.4V
ILX
LX Switching Current
4.0V≤VSET≤4.4V
VLX=0.4V
4.5V≤VSET≤4.9V
VLX=0.4V
5.0V≤VSET≤5.4V
VLX=0.4V
5.5V≤VSET≤6.0V
VLX=0.4V
VIN=VSET×0.6, IOUT=0.5mA
(only for ××1A)
fosc2
Change-over frequency
35
70
*Note: VSET means setting Output Voltage.
6
R1210N××1×
TEST CIRCUITS
SD
A
E
L
X
V
OUT
L
C
L
LX
V
OUT
CL
V
GND CE
VIN
GND CE
OSCILLOSCOPE
F
B
L
X
V
OUT
LX
V
OUT
C
L
A
GND CE
GND CE
OSCILLOSCOPE
C
G
LX
VOUT
A
L
X
V
OUT
GND CE
GND CE
OSCILLOSCOPE
H
D
A
L
X
VOUT
LX
VOUT
GND CE
A
GND CE
L: 100µH CD54 (Sumida Electric Co, LTD)
SD: MA721 (Matsushita Electronics Corporation, Schottky Type)
CL: 22µF×2 (Tantalum Type)
7
R1210N××1×
TYPICAL CHARACTERISTICS
1) Output Voltage vs. Output Current
R1210N301C
R1210N301D
3.2
3.1
3.0
3.2
V
IN:0.9V
V
IN:0.9V
3.1
3.0
VIN:2.0V
VIN:2.0V
V
IN:1.5V
V
IN:1.5V
VIN:2.5V
VIN:2.5V
2.9
2.8
2.9
2.8
0
50
100
150
200
250
300
0
50
100
150
200
250
300
Output Current IOUT (mA)
Output Current IOUT (mA)
R1210N501C
R1210N501D
5.4
5.2
5.0
4.8
5.4
5.2
5.0
4.8
VIN:3.0V
VIN:4.0V
VIN:3.0V
V
IN:2.0V
VIN:4.0V
VIN:2.0V
VIN:1.5V
V
IN:1.5V
4.6
4.4
4.6
4.4
0
50
100
150
200
250
300
0
50
100
150
200
250
300
Output Current IOUT (mA)
Output Current IOUT (mA)
2) Efficiency vs. Output Current
R1210N301C
R1210N301D
100
100
80
80
VIN:2.5V
VIN:2.5V
60
60
VIN:2.0V
VIN:2.0V
VIN:1.5V
VIN:1.5V
40
40
VIN:0.9V
VIN:0.9V
20
20
0
0
0
50
100
150
200
250
300
0
50
100
150
200
250
300
Output Current IOUT (mA)
Output Current IOUT (mA)
8
R1210N××1×
R1210N501C
R1210N501D
100
80
100
80
VIN:4.0V
VIN:4.0V
VIN:3.0V
VIN:3.0V
VIN:1.5V
60
60
VIN:2.0V
VIN:2.0V
VIN:1.5V
40
40
20
0
20
0
0
50
100
150
200
250
300
0
50
100
150
200
250
300
Output Current IOUT (mA)
Output Current IOUT (mA)
3) R1210N××1A/C Efficiency
R1210N301×
V
IN:1.5V
100
90
80
70
60
50
40
30
20
10
0
R1210N301A
R1210N301C
0.01
0.10
1.00
10.00
100.00
Output Current IOUT(mA)
4) Ripple Voltage vs. Output Current
R1210N301C
R1210N301D
ESR:0.33 Ω
ESR:0.33 Ω
140
120
100
140
120
100
V
IN:2.0(V)
V
IN:1.5(V)
80
60
40
20
0
80
60
40
20
0
VIN:1.5(V)
VIN:2.0(V)
V
IN:0.9(V)
VIN:0.9(V)
0
50
100
150
0
50
100
150
Output Current IOUT (mA)
Output Current IOUT (mA)
9
R1210N××1×
R1210N501C
R1210N501D
ESR:0.33 Ω
ESR:0.33 Ω
140
120
100
80
140
120
100
V
IN:1.5(V)
V
IN:1.5(V)
V
IN:2.0(V)
80
60
40
20
0
VIN:2.0(V)
V
IN:0.9(V)
60
V
IN:0.9(V)
40
20
0
0
50
100
150
200
250
300
0
50
100
150
200
250
300
Output Current IOUT (mA)
Output Current IOUT (mA)
5) Start-up Voltage/Hold-on Voltage vs. Output Current (Topt=25°C)
R1210N301C
R1210N301D
2.0
1.6
1.2
0.8
2.0
1.6
1.2
0.8
Vstart
Vstart
Vhold
20
Vhold
0.4
0.0
0.4
0.0
0
5
10
15
25
30
0
5
10
15
20
25
30
Output Current IOUT (mA)
Output Current IOUT (mA)
R1210N501C
R1210N501D
2.0
1.6
1.2
0.8
2.0
1.6
1.2
0.8
Vstart
Vstart
Vhold
Vhold
0.4
0.0
0.4
0.0
0
5
10
15
20
25
30
0
5
10
15
20
25
30
Output Current IOUT (mA)
Output Current IOUT (mA)
10
R1210N××1×
6) Output Voltage vs. Temperature
R1210N301C
R1210N301D
3.10
3.10
3.05
3.00
3.05
I
OUT:10(mA)
I
OUT:30(mA)
I
OUT:10(mA)
I
OUT:30(mA)
3.00
I
OUT:0(mA)
I
OUT:0(mA)
2.95
2.90
2.95
2.90
-50
-25
0
25
50
75
100
-50
-25
0
25
50
75
100
Temperature Topt (°C)
Temperature Topt (°C)
R1210N501C
R1210N501D
5.15
5.10
5.15
5.10
5.05
5.00
5.05
5.00
IOUT:10(mA)
IOUT:0(mA)
IOUT:10(mA)
IOUT:0(mA)
IOUT:30(mA)
IOUT:30(mA)
4.95
4.95
4.90
4.85
4.90
4.85
-50
-25
0
25
50
75
100
-50
-25
0
25
50
75
100
Temperature Topt (°C)
Temperature Topt (°C)
7) Supply Current 1 vs. Temperature
R1210N301A
R1210N301D
100
100
80
80
60
40
60
40
20
0
20
0
-50
-25
0
25
50
75
100
-50
-25
0
25
50
75
100
Temperature Topt (°C)
Temperature Topt (°C)
11
R1210N××1×
R1210N501C
R1210N501D
120
100
120
100
85
60
85
60
40
20
40
20
0
0
-50
-25
0
25
50
75
100
-50
-25
0
25
50
75
100
Temperature Topt (°C)
Temperature Topt (°C)
8) Supply Current2 vs. Temperature
R1210N301A
R1210N221D
25
25
20
15
10
20
15
10
5
0
5
0
-50
-25
0
25
50
75
100
-50
-25
0
25
50
75
100
Temperature Topt (°C)
Temperature Topt (°C)
R1210N501C
R1210N601D
25
25
20
15
10
20
15
10
5
0
5
0
-50
-25
0
25
50
75
100
-50
-25
0
25
50
75
100
Temperature Topt (°C)
Temperature Topt (°C)
12
R1210N××1×
9) Standby Current vs. Temperature
R1210N221A
R1210N221D
1.0
0.8
1.0
0.8
0.6
0.4
0.6
0.4
0.2
0.2
0.0
0.0
-0.2
-0.2
-50
-25
0
25
50
75
100
-50
-25
0
25
50
75
100
Temperature Topt (°C)
Temperature Topt (°C)
R1210N601C
R1210N601D
1.0
1.0
0.8
0.8
0.6
0.4
0.6
0.4
0.2
0.2
0.0
0.0
-0.2
-0.2
-50
-25
0
25
50
75
100
-50
-25
0
25
50
75
100
Temperature Topt (°C)
Temperature Topt (°C)
10) Oscillator Frequency vs. Temperature
R1210N221A
R1210N221D
300
250
300
250
200
150
200
150
100
100
50
0
50
0
-50
-25
0
25
50
75
100
-50
-25
0
25
50
75
100
Temperature Topt (°C)
Temperature Topt (°C)
13
R1210N××1×
R1210N601C
R1210N601D
300
250
300
250
200
150
200
150
100
100
50
50
0
0
-50
-50
-25
0
25
50
75
100
-25
0
25
50
75
100
Temperature Topt (°C)
Temperature Topt (°C)
11) Maximum Duty Cycle vs. Temperature
R1210N221A
R1210N221D
100
90
100
90
80
70
80
70
60
60
50
40
50
40
-50
-25
0
25
50
75
100
-50
-25
0
25
50
75
100
Temperature Topt (°C)
Temperature Topt (°C)
R1210N601C
R1210N601D
100
90
100
90
80
70
80
70
60
60
50
40
50
40
-50
-25
0
25
50
75
100
-50
-25
0
25
50
75
100
Temperature Topt (°C)
Temperature Topt (°C)
14
R1210N××1×
12) LX Switching Current vs. Temperature
R1210N301A
R1210N501C
500
500
400
300
200
400
300
200
100
0
100
0
-50
-25
0
25
50
75
100
-50
-25
0
25
50
75
100
Temperature Topt (°C)
Temperature Topt (°C)
R1210N221D
R1210N601D
500
500
400
300
200
400
300
200
100
0
100
0
-50
-25
0
25
50
75
100
-50
-25
0
25
50
75
100
Temperature Topt (°C)
Temperature Topt (°C)
13) LX leakage Current vs. Temperature
R1210N221A
R1210N221D
1.0
1.0
0.8
0.8
0.6
0.4
0.6
0.4
0.2
0.2
0.0
0.0
-0.2
-0.2
-50
-25
0
25
50
75
100
-50
-25
0
25
50
75
100
Temperature Topt (°C)
Temperature Topt (°C)
15
R1210N××1×
R1210N601C
R1210N601D
1.0
0.8
1.0
0.8
0.6
0.4
0.6
0.4
0.2
0.0
0.2
0.0
-0.2
-50
-0.2
-25
0
25
50
75
100
-50
-25
0
25
50
75
100
Temperature Topt (°C)
Temperature Topt (°C)
14) VLX Voltage Limit vs. Temperature
R1210N301A
R1210N221D
1.0
1.0
0.8
0.6
0.4
0.8
0.6
0.4
0.2
0.0
0.2
0.0
-50
-25
0
25
50
75
100
-50
-25
0
25
50
75
100
Temperature Topt (°C)
Temperature Topt (°C)
R1210N501C
R1210N601D
1.0
1.0
0.8
0.6
0.4
0.8
0.6
0.4
0.2
0.0
0.2
0.0
-50
-25
0
25
50
75
100
-50
-25
0
25
50
75
100
Temperature Topt (°C)
Temperature Topt (°C)
16
R1210N××1×
15) CE “H” Input Voltage vs. Temperature
R1210N221A
R1210N601C
0.9
0.9
0.8
0.8
0.7
0.6
0.7
0.6
0.5
0.5
0.4
0.3
0.4
0.3
-50
-25
0
25
50
75
100
-50
-25
0
25
50
75
100
Temperature Topt (°C)
Temperature Topt (°C)
16) CE “L” Input Voltage vs. Temperature
R1210N221A
R1210N601C
0.9
0.9
0.8
0.8
0.7
0.6
0.7
0.6
0.5
0.5
0.4
0.3
0.4
0.3
-50
-25
0
25
50
75
100
-50
-25
0
25
50
75
100
Temperature Topt (°C)
Temperature Topt (°C)
17
相关型号:
R1210N521D-TL-FB
Switching Regulator, 120kHz Switching Freq-Max, CMOS, PDSO5, MINI, PLASTIC, SOT-23, 5 PIN
RICOH
R1210N521D-TR-FE
Switching Regulator, 0.4A, 216kHz Switching Freq-Max, CMOS, PDSO5, HALOGEN FREE AND ROHS COMPLIANT, SOT-23, 5 PIN
RICOH
R1210N522C-TL
Switching Controller, Voltage-mode, 0.04A, 120kHz Switching Freq-Max, CMOS, PDSO5, MINI, SOT-23, 5 PIN
RICOH
R1210N522C-TR
Switching Controller, Voltage-mode, 0.04A, 120kHz Switching Freq-Max, CMOS, PDSO5, MINI, SOT-23, 5 PIN
RICOH
R1210N522C-TR-F
Switching Controller, 0.04A, 120kHz Switching Freq-Max, CMOS, PDSO5, LEAD FREE, MINI, SOT-23, 5 PIN
RICOH
R1210N522C-TR-FE
Switching Controller, Voltage-mode, 0.04A, 120kHz Switching Freq-Max, CMOS, PDSO5, HALOGEN FREE AND ROHS COMPLIANT, SOT-23, 5 PIN
RICOH
R1210N531C-TL
Switching Regulator, Voltage-mode, 216kHz Switching Freq-Max, CMOS, PDSO5, MINI, PLASTIC, SOT-23, 5 PIN
RICOH
©2020 ICPDF网 联系我们和版权申明