NJM2829F3-080 [NJRC]
Fixed Negative Standard Regulator,;
| 型号： | NJM2829F3-080 |
| 厂家： | 
NEW JAPAN RADIO |
| 描述： | Fixed Negative Standard Regulator, |
| 文件： | 总11页 (文件大小：223K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
NJM2829
Very Low Output Negative Voltage Regulator
ꢀ GENERAL DESCRIPTION
ꢀPACKAGE OUTLINE
The NJM2829 is a negative voltage regulator that delivers
up to 100mA output current with the output voltage of -0.8 to
-1.3V with ON/OFF control.
Advanced Bipolar technology achieves low noise, high ripple
rejection, and high precision voltage.
NJM2829F3
It has soft-start and shunt SW function. 2.2µF Output
capacitor and small package can make NJM2829 suitable
for portable items.
ꢀ FEATURES
• High Precision Output
• High Ripple Rejection
VO±1.5%
80dB typ. (f=1kHz, VO=-1.0V version)
• Output Capacitor with 2.2µF ceramic capacitor
• Output Current
IO(max)=100mA
• ON/OFF Control (Positive voltage control from 0V to +5V)
• Soft-start Function
• Shunt SW Function
• Built-in Thermal Overload Protection and Short Circuit Current Limit Protection
• Bipolar Technology
• Package Outline
SC-88A
ꢀ PIN CONNECTION
1. GND
2. VIN
3. VOUT
5
4
4. CONTROL
5. CS
1 2 3
NJM2829F3
ꢀ BLOCK DIAGRAM
GND
Thermal
Protection
Current
Limit
CS
Bandgap
Reference
Output
Control
CONTROL
VIN
VOUT
Ver.2012-09-07
- 1 -
NJM2829
ꢀ OUTPUT VOLTAGE RANK LIST
Vout
Device Name
NJM2829F3 -080
NJM2829F3 -095
NJM2829F3 -100
NJM2829F3 -120
NJM2829F3 -130
-0.8V
-0.95V
-1.0V
-1.2V
-1.3V
Output Voltage Range: -0.8V to -1.3V
ꢀ ABSOLUTE MAXIMUM RATINGS
(Ta=25°C)
PARAMETER
Input Voltage
Control Voltage
SYMBOL
VIN
VCONT
RATINGS
UNIT
V
V
-14
+5
Output Sink Current
at OFF-state
ISINK(OFF)
10
mA
Power Dissipation
Operating Temperature
Storage Temperature
PD
Topr
Tstg
250(*1)
- 40 ∼ +85
- 40 ∼ +125
mW
°C
°C
(*1): Mounted on glass epoxy board. (114.3×76.2×1.6mm : 2layer,FR-4)
ꢀ OPERATING VOLTAGE RANGE
VIN=-3.2 ∼ -12V
ꢀ ELECTRICAL CHARACTERISTICS
(VIN=-3.2V, VCONT=3V, CIN=0.1µF, Co=2.2µF(Vo > -0.9V :Co=4.7µF) , Ta=25°C)
PARAMETER
Output Voltage
SYMBOL
TEST CONDITION
Io=30mA
MIN.
-1.5%
-
TYP. MAX. UNIT
Vo
IQ
-
+1.5%
220
V
Quiescent Current
Quiescent Current
at OFF-state
Io=0mA, except Icont
140
µA
IQ(OFF)
VCONT=0V
-
-
100
nA
Output Current
Line Regulation
Load Regulation
Io
100
-
-
130
-
-
-
mA
%/V
VO×0.9
0.10
0.04 %/mA
∆Vo/∆VIN VIN=Vo-3.2V∼ -12V, Io=30mA
∆Vo/∆Io
Io=0∼60mA
VIN=-4.0V,ein=200mVrms,f=1kHz,
Io=10mA,Vo=-1.0V Version
Ripple Rejection
RR
-
80
-
dB
Average Temperature
Coefficient of Output
Voltage
-
±50
-
ppm/°C
∆Vo/∆Ta Ta=0∼+85°C, Io=10mA
f=10Hz∼80kHz, Io=10mA,
Output Noise Voltage
VNO
-
4
40
5.3
560
2
-
6.5
-
µVrms
µA
Ω
Vo=--1.0V Version
CS Terminal Charge Current
Output Resistance
at OFF-state
Control Current
Control Voltage for
ON-state
Ics
VCS=0V
RO(OFF)
ICONT
VCONT=0V
VCONT=1.6V
-
-
4
µA
V
VCONT(ON)
1.6
-
-
Control Voltage for
OFF-state
Input Voltage
VCONT(OFF)
VIN
-
-
-
0.6
-
V
V
-12
The above specification is a common specification for all output voltages.
Therefore, it may be different from the individual specification for a specific output voltage.
- 2 -
Ver.2012-09-07
NJM2829
ꢀPOWER DISSIPATION vs. AMBIENT TEMPERATURE
NJM2829F3 Power Dissipation
(Topr=-40~+85°C,Tj=125°C)
500
400
300
200
100
0
2Layers board(76.2×114.3×1.6mm, FR-4)
-50
-25
0
25
50
75
100
Ambient Temperature Ta(°C)
ꢀ TEST CIRCUIT
IQ
A
0.1µF
IOUT VOUT
2.2µF*2
VIN
(Ceramic))
V
GND
VOUT
VIN
0.047µF
NJM2829
ICONT
CONTROL
CS
A
VCONT
V
*2) Vo>-0.9V version: Co=4.7µ F(Ceramic)
Ver.2012-09-07
- 3 -
NJM2829
ꢀ TYPICALAPPLICATION
ꢁON/OFF control
ON/OFF control can be achieved by applying positive control voltage to CONTROL terminal.
Apply positive Vcont ("H") to make chip to be ON (Enabled), and either Vcont is "L" or open (High Z) to make chip to
be OFF (Disabled).
The relations between Vcont and the state is as follows:
Vcont +1.6V ≤ Vcont ≤ +5V ("H" level):
Vcont 0V ≤ Vcont ≤ +0.6V ("L" level):
Vcont +0.6V < Vcont < +1.6V ("L" level):
ON state
OFF state
Undefined
In case ON/OFF control is not used, keep applying positive Vcont to CONTROL terminal to make chip ON.
Note that negative Vcont does not make the chip enabled.
2.2µF*3
0.1µF
GND
VIN
VOUT
VIN
VOUT
0.047µF
NJM2829
CONTROL
CS
CONTROL
CS
R
*3) Vo>-0.9V version: Co=4.7µ F(Ceramic)
*In the case of using a resistance "R" to CONTROL terminal.
If this resistor is inserted, it can reduce the control current when the control voltage is high.
The applied voltage to control terminal should set to consider voltage drop through the resistor “R” and the minimum
control voltage for ON-state.
The VCONT (ON) and ICONT have temperature dependence as shown in the "Control Current vs. Temperature" and "
Control Voltage vs. Temperature" characteristics.
Therefore, the resistance "R" should be selected to consider the temperature characteristics.
Ver.2012-09-07
- 4 -
NJM2829
*Input Capacitor CIN
Input Capacitor CIN is required to prevent oscillation and reduce power supply ripple for applications when high
power supply impedance or a long power supply line.
Therefore, use the recommended CIN value (refer to conditions of ELECTRIC CHARACTERISTIC) or larger and
should connect between GND and VIN as shortest path as possible to avoid the problem.
*Output Capacitor CO
Output capacitor (CO) will be required for a phase compensation of the internal error amplifier.
The capacitance and the equivalent series resistance (ESR) influence to stable operation of the regulator.
Use of a smaller CO may cause excess output noise or oscillation of the regulator due to lack of the phase
compensation.
On the other hand, Use of a larger CO reduces output noise and ripple output, and also improves output
transient response when rapid load change.
Therefore, use the recommended CO value (refer to conditions of ELECTRIC CHARACTERISTIC) or larger
and should connect between GND and VOUT as shortest path as possible for stable operation
The recommended capacitance depends on the output voltage rank. Especially, low voltage regulator requires larger
CO value.
In addition, you should consider varied characteristics of capacitor (a frequency characteristic, a temperature
characteristic, a DC bias characteristic and so on) and unevenness peculiar to a capacitor supplier enough.
When selecting CO, recommend that have withstand voltage margin against output voltage and superior temperature
characteristic.
Ver.2012-09-07
- 5 -
NJM2829
*Soft-start function
Capacitance Cs connects between CS pin and GND for the following.
• Control at risetime of output voltage.
• Reduces inrush current at output ON.
When the soft start function is not used, CS pin should be open.
Please switch ON/OFF with CONTROL pin by all means because when switch ON/OFF with VIN pin, the electric
charge of the CS pin cannot discharge, and normalcy does not work a soft start circuit.
Cs capacitance vs. output voltage risetime
Calculation: output voltage risetime ∆t (ms) ≅ 82 x CS pin Capacitance (µF)
NJM2829
CS pin Capacitance vs. Output Voltage risetime
90
80
70
60
50
40
@:Ta=25°C
VIN=-3.2V
30
VCONT=+3V
Io=0A
20
∆t:0~Vo×0.9
10
0
0
0.2
0.4
0.6
0.8
1
1.2
Cspin Capacitance CS[uF]
：
Please consider influence such as each temperature characteristic and dispersion enough.
Because depend on CS pin charge electric current and CS pin capacitance greatly in an output voltage risetime
Ver.2012-09-07
- 6 -
NJM2829
ꢀTYPICAL CHARACTERISTICS
NJM2829_-1.0V
NJM2829_-1.0V
Output Voltage vs. Input Voltage
Output Voltage vs. Output Current
1.2
1
@:Ta=25oC
Co=2.2uF(Ceramic)
1.2
1
Io=0A
0.8
0.6
0.4
0.2
0
0.8
0.6
0.4
0.2
0
Io=30mA
Io=100mA
@:Ta=25oC
VIN=-3.2V
Co=2.2uF(Ceramic)
0
50
100
150 200
1.6
1.8
2
2.2
2.4
2.6
2.8
3
Output Current : Io(mA)
Input Voltage : V IN(V)
NJM2829_-1.0V
NJM2829_-1.0V
Load Regulation vs. Output Current
Ground Pin Current vs. Output Current
@ Ta=25Co
20
0
-10
-20
-30
-40
-50
-60
-70
-80
Vin=-3.2V
Vcont=3V
Co=2.2uF
15
10
5
@:Ta=25oC
VIN=-3.2V
Co=2.2uF(Ceramic)
0
0
50
100
150
0
50
100
Output Current : Io(mA)
150
200
Output Current : Io(mA)
NJM2829_-1.0V
Control Current vs. Control Voltage
NJM2829_-1.0V
Output Voltage vs. Control Voltage
30
25
20
15
10
5
1.2
@:Ta=25oC
VIN=-3.2V
Co=2.2uF(Ceramic)
Io=30mA
1
0.8
0.6
0.4
0.2
0
Rc=0Ω
Rc=0Ω
Rc=50kΩ
Rc=50kΩ
Rc=100kΩ
@:Ta=25oC
VIN=-3.2V
Rc=100kΩ
Co=2.2uF(Ceramic)
Io=30mA
0
0
1
2
3
4
5
0
0.5
1
1.5
2
2.5
3
Control Voltage : V
(V)
Control Voltage : V
(V)
Cont
Cont
Ver.2012-09-07
- 7 -
NJM2829
NJM2829_-1.0V
Quiescent Current vs. Input Voltage
NJM2829_-1.0V
Peak Output Current vs. Input Voltage
500
400
300
200
100
0
300
250
200
150
100
50
@:Ta=25oC
Output is open.
@:Ta=25oC
Co=2.2uF(Ceramic)
Co=2.2uF(Ceramic)
0
0
2
4
6
8
10
12
14
2
4
6
8
10
12
14
Input Voltage : V IN(V)
Input Voltage : V IN(V)
NJM2829_-1.0V
Ripple Rejection Ratio vs. Frequency
NJM2829_-1.0V
Output Noise Voltage vs. Output Current
@:Ta=25oC
100
90
80
70
60
50
40
30
20
120
Io=30mA
Io=0mA
VIN=-3.2V
Co= 2.2uF(Ceramic)
4.7uF(Ceramic)
100
80
60
40
20
0
Io=100mA
FLAT
@:Ta=25oC
VIN=-3.2V
LPF:80k
ein=200mVrms
Co=2.2uF(Ceramic)
100k
1k
10
10k
10u
1m
Output Current : Io(A)
10m
10
100
1u
100u
100m
Frequency : f (Hz)
NJM2829_-1.0V
Equivalent Serise Resistance vs. Output Current
NJM2829_-1.0V
Ripple Rejection vs. Output Current
100
10
1
100
@:Ta=25oC
Co=2.2uF(Ceramic)
f=1kHz
90
80
70
60
50
40
30
20
f=10kHz
STABLE REGION
@:Ta=25oC
VIN=-3.2V
ein=200mVrms
Co=2.2uF(Ceramic)
0.1
0.001
0.01
0.1
1
10 100
0.001
0.01
0.1
1
10
100
Output Current : Io(mA)
Output Current : Io(mA)
Ver.2012-09-07
- 8 -
NJM2829
NJM2829_-1.0V
Control Voltage v.s. Temperature
NJM2829_1.0V
Control Current vs. Temperature
10
8
2
1.5
1
@:VIN=-3.2V
Output : No Load
Co=2.2uF
@:VIN=-3.2V
Io=30mA
Co=1uF(Ceramic)
Vcont=1.6V
6
4
0.5
2
0
0
-50
0
50
Temperature : Ta ( oC)
100
150
-50
0
50
100
150
Temperature : Ta ( oC)
NJM2829_-1.0V
CS Charge Current vs. Temperature
NJM2829_-1.0V
Quiescent Current vs. Temperature
250
200
150
100
50
10
8
@:VIN=-3.2V
CS is short to ground.(VI)
Co=2.2uF(Ceramic)
6
4
2
@:VIN=-3.2V
Output is open.
Co=2.2uF(Ceramic)
Icont, including
0
0
-50
0
50
100
150
-50
0
50
100
150
Temperature : Ta ( oC)
Temperature : Ta ( oC)
NJM2829_-1.0V
Load Regulation vs. Temperature
NJM2829_-1.0V
Line Regulation vs. Temperature
0.03
0.025
0.02
0.015
0.01
0.005
0
0.1
0.05
0
@:VIN=-3.2V
Io=0-60mA
Co=2.2uF(Ceramic)
@:dVIN=-3.2-12V
Io=30mA
Co=2.2uF(Ceramic)
-0.05
-0.1
-50
0
50
Temperature : Ta ( oC)
100
150
-50
0
50
Temperature : Ta ( oC)
100
150
Ver.2012-09-07
- 9 -
NJM2829
NJM2829_-1.0V
NJM2829_-1.0V
Output Voltage vs. Temperature
Short Circuit Current vs. Temperature
1.2
0.9
0.6
0.3
200
150
100
50
@:VIN=-3.2V
Output is short to ground.(VI)
Co=2.2uF(Ceramic)
@:VIN=-3.2V
Io=30mA
Co=2.2uF(Ceramic)
0
0
-50
0
50
100
150
200
-50
0
50
100
150
Temperature Ta ( oC)
Temperature : Ta ( oC)
NJM2829_-1.0V
Output Voltage vs. Temperature
NJM2829_-1.0V
Maximum Output Current vs. Temperature
1.05
1.025
1
200
@:VIN=-3.2V
Io=30mA
Co=2.2uF(Ceramic)
150
100
50
0
0.975
0.95
@:VIN=-3.2V
Vo=Vo x 0.9
Co=2.2uF(Ceramic)
-50
0
50
Temperature Ta ( oC)
100
150
-50
0
50
Temperature : Ta ( oC)
100
150
Ver.2012-09-07
- 10 -
NJM2829
NJM2829_-1.0V
NJM2829_-1.0V
Line Transient Response
Load Transient Response
-0.88
-0.90
-1
-2
150
100
50
-0.90
-0.92
Output Current
-0.92
-3
-0.94
-0.96
-0.98
-1.00
-1.02
-1.04
-1.06
Input Voltage
-0.94
-0.96
-0.98
-1.00
-1.02
-1.04
-4
-5
-6
-7
-8
-9
0
@:Ta=25°C
Vcont=3.0V
Io=30mA
Co=2.2uF(ceramic)
Cin=0uF
-50
-100
-150
-200
-250
@:Ta=25°C
Vcont=3.2V
Output Voltage
Io=50-100mA
Co=2.2uF(ceramic)
Cin=0.1uF
Output Voltage
80
0
40
80
120
160
200
0
40
120
160
200
Time:t(µs)
Time:t(us)
NJM2829_-1.0V
NJM2829_-1.0V
ON/OFF Transient Response
ON/OFF Transient Response without road
2
1.5
1
4
2
2
1.5
1
4
Control Voltage
Control Voltage
2
0
0
@:Ta=25°C
Vcont=3.2V
Io=30mA
Co=2.2uF(ceramic)
Cs=0.047uF
@:Ta=25°C
Vcont=3.2V
Io=0mA
Co=2.2uF(ceramic)
Cs=0.047uF
0.5
0
-2
-4
-6
-8
-10
-12
0.5
0
-2
-4
-6
-8
-10
-12
-0.5
-1
-0.5
-1
Output Voltage
Output Voltage
-1.5
-2
-1.5
-2
0
10
20
30
40
50
0
10
20
30
40
50
Time:t(ms)
Time:t(ms)
[CAUTION]
The specifications on this databook are only
given for information , without any guarantee
as regards either mistakes or omissions. The
application circuits in this databook are
described only to show representative usages
of the product and not intended for the
guarantee or permission of any right including the
industrial rights.
Ver.2012-09-07
- 11 -
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