L200C [STMICROELECTRONICS]
ADJUSTABLE VOLTAGE AND CURRENT REGULATOR; 可调电压和电流调节器
| 型号： | L200C |
| 厂家： | 
ST |
| 描述： | ADJUSTABLE VOLTAGE AND CURRENT REGULATOR |
| 文件： | 总12页 (文件大小：167K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
L200
ADJUSTABLE VOLTAGE AND CURRENT REGULATOR
ADJUSTABLE OUTPUT CURRENT UP TO 2 A
(GUARANTEED UP TO Tj = 150 °C)
ADJUSTABLE OUTPUT VOLTAGE DOWN TO
2.85 V
INPUT OVERVOLTAGE PROTECTION (UP TO
60 V, 10 ms)
SHORT CIRCUIT PROTECTION
OUTPUT TRANSISTOR S.O.A.PROTECTION
THERMAL OVERLOAD PROTECTION
LOW BIAS CURRENT ON REGULATIONPIN
Pentawatt
TO-3 (4 lead)
LOW STANDBY CURRENT DRAIN
DESCRIPTION
60 V) make the L200 virtually blow-out proof.
The L200 can be used to replace fixed voltage
regulators when high output voltage precision is
required and eliminates the need to stock a range
of fixed voltage regulators.
The L200 is a monolithic integrated circuit for volt-
age and current programmable regulation. It is
available in Pentawatt package or 4-lead TO-3
metalcase.Currentlimiting,powerlimiting,thermal
shutdown and input overvoltage protection (up to
ABSOLUTE MAXIMUM RATINGS
Symbol
Parameter
Value
40
Unit
V
Vi
Vi
DC Input Voltage
Peak Input Voltage(10 ms)
Dropout Voltage
60
V
V
32
V
∆
i-o
Io
Output Current
internally limited
internally limited
-55 to 150
-25 to 150
-55 to 150
Ptot
Tstg
Top
Power Dissipation
Storage Temperature
C
°
Operating Junction Temperature for L200C
for L200
C
°
°
C
THERMAL DATA
TO-3
4 °C/W
35 °C/W
Pentawatt
3 °C/W
Rth j-case
Rth j-amb
Thermal Resistance Junction-case
Thermal Resistance Junction-ambient
Max
Max
50 °C/W
January 2000
1/12
L200
(top views)
CONNECTION DIAGRAMS AND ORDER CODES
Type
Pentawatt
TO-3
L200
L200 T
L200 CT
L200 C
L200 CH
L200 CV
BLOCK DIAGRAM
APPLICATION CIRCUITS
Figure 2. Programmable Current Regulator.
Figure 1. Programmable Voltage Regulator
with Current Limiting
2/12
L200
SCHEMATIC DIAGRAM
(T
amb
= 25 C, unless otherwise specified)
°
ELECTRICAL CHARACTERISTICS
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
VOLTAGE REGULATION LOOP
Id
Quiescent drain Current (pin 3)
Output Noise Voltage
Vi = 20 V
4.2
80
9.2
36
mA
eN
Vo = Vref
B = 1 MHz
Io = 10 mA
V
µ
Vo
Output Voltage Range
Io = 10 mA
2.85
V
V
∆
o
VoltageLoad Regulation
(note 1)
I = 2 A
I = 1.5 A
o
0.15
0.1
1
0.9
%
%
∆
∆
o
Vo
V
∆
i
Line Regulation
V0 = 5 V
Vi = 8 to 18 V
48
48
60
dB
∆ Vo
V0 = 5 V
∆Vi = 10 Vpp
f = 100 Hz (note 2)
Io = 500 mA
SVR
Supply VoltageRejection
60
2
dB
V
Droupout Voltagebetween Pins 1
and 5
2.5
V
Io = 1.5 A
V
∆
2%
≤
∆
i-o
0
Vref
Reference Voltage (pin 4)
Vi = 20 V
Io = 10 mA
2.64
2.77
2.86
V
3/12
L200
(continued)
ELECTRICAL CHARACTERISTICS
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
mV/ C
Vi = 20 V Io = 10mA
V
∆
Average Temperature Coefficient
of Reference Voltage
ref
for Tj = - 25 to 125 C
for Tj = 125 to 150 C
-0.25
-1.5
°
°
°
mV/ C
°
I4
∆ I4
Bias Current and Pin 4
3
10
A
µ
Average Temperature
Coefficient (pin 4)
-0.5
%/°C
T
∆
• I4
Zo
Output Impedance
Vi = 10 V
Io = 0.5 A
Vo = Vref
f = 100 Hz
1.5
mΩ
CURRENT REGULATION LOOP
VSC
Current Limit Sense Voltage
between Pins 5 and 2
Vi = 10 V
I5 = 100 mA
Vo = Vref
0.38
0.45
0.03
0.52
V
V
∆
SC
Average Temperature
Coefficient of VSC
%/°
C
T
VSC
∆
•
I
∆
o
Current Load Regulation
Vi = 10 V
Io = 0.5 A
Io = 1A
∆Vo = 3V
1.4
1
0.9
%
%
%
Io
Io = 1.5 A
ISC
Peak Short Circuit Current
Vi - V0 = 14 V
(pins 2 and 5 short circuited)
3.6
A
Note 1: A load step of 2 A can be applied provited that input-output differential voltage is lower than 20 V (see Figure 3).
Note 2: The same performance can be maintained at higher output levels if a bypassing capacitor is provited between pins 2 and 4.
Figure 3. Typical Safe Operating Area
Protection.
Figure 4. Quiescent Current vs. Supply
Voltage.
4/12
L200
Figure 5. Quiescent Current vs. Junction
Voltage.
Figure 6. Quiescent Current vs. Output
Current.
Figure 7. Output Noise Voltage vs. Output
Voltage.
Figure 8. Output Noise Voltage vs.
Frequency.
Figure 9. Reference Voltage vs. Junction
Temperature.
Figure 10. Voltage Load Regulation vs.
JunctionTemperature.
5/12
L200
Figure 11. Supply Voltage Rejection vs.
Frequency.
Figure 12. Dropout Voltage vs. Junction
Temperature.
Figure 13. Output Impedance vs.
Frequency.
Figure 14. Output Impedance vs. Output
Current.
Figure 15. VoltageTransientReponse.
Figure 16. LoadTransient Reponse.
6/12
L200
Figure 17. Load Transient Reponse
Figure 18. Current Limit Sense Voltage vs.
JunctionTemperature.
APPLICATIONS CIRCUITS
Figure 19. - Programmable Voltage Regulator
Figure 20. - P.C.Board and Components Layout
of Figure 19.
Figure21. - HighCurrentVoltageRegulator with
Short Circuit Protection.
Figure 22. - Digitally Selected Regulator with
Inhibit.
7/12
L200
Figure 23. Programmable Voltage and Current Regulator.
Note: Connecting point A to a negative voltage (for example - 3V/10 mA) it is possible to extend the output voltage
range down to 0 V and obtain the current limiting down to this level (output short-circuit condition).
Figure 24. High Current Regulator with NPN
PassTransistor.
Figure 25. High Current Tracking Regualtor.
8/12
L200
Figure 26. High Input and Output Voltage.
Figure 27. Constant Current Battery Charger.
The resistors R1 and R2 determine the final charging volt-
age and RSC the initial charging current. D1 prevents dis-
charge of the battery throught the regulator.
The resistor RL limits the reverse currents through ther
regulator (which should be 100 mA max) when the bat-
tery is accidentally reverse connected. If RL is in series
with a bulb of 12 V/50 mA rating this will indicate incor-
rect connection.
Figure 28. 30 W Motor Speed Control.
Figure 29. Loww Turn on.
Figure 30. Light Controller.
9/12
L200
mm
inch
DIM.
MIN. TYP. MAX. MIN. TYP. MAX.
OUTLINE AND
A
C
4.8
1.37
2.8
0.189
0.054
0.110
0.053
0.022
0.047
0.041
0.055
MECHANICAL DATA
D
2.4
1.2
0.35
0.76
0.8
1
0.094
D1
E
1.35 0.047
0.55 0.014
1.19 0.030
1.05 0.031
E1
F
F1
G
1.4
3.6
7
0.039
3.2
6.6
3.4
6.8
0.126 0.134 0.142
0.260 0.268 0.276
0.409
G1
H2
H3
L
10.4
10.05
10.4 0.396
0.409
17.55 17.85 18.15 0.691 0.703 0.715
15.55 15.75 15.95 0.612 0.620 0.628
L1
L2
L3
L4
L5
L6
L7
L9
M
21.2
22.3
21.4
22.5
21.6 0.831 0.843 0.850
22.7 0.878 0.886 0.894
1.29
3
0.051
0.118
0.622
0.260
2.6
15.1
6
0.102
15.8 0.594
6.6 0.236
0.2
4.5
4
0.008
4.23
3.75
4.75 0.167 0.177 0.187
4.25 0.148 0.157 0.167
40° (typ.)
Pentawatt V
M1
V4
L
L1
L8
V3
V
V
E
V
V
R
V1
M1
M
R
A
R
B
D
C
D1
V4
L2
L3
H2
L5
F
E1
E
V4
H3
G G1
H1
Dia.
F
F1
L7
H2
V4
L6
L9
RESIN BETWEEN
LEADS
10/12
L200
mm
inch
DIM.
OUTLINE AND
MECHANICAL DATA
MIN. TYP. MAX. MIN. TYP. MAX.
A
B (*)
C
11.8
1
0.46
0.39
2.5
9.6
20
0.098
0.37
0.78
D
E
G
12.7
0.50
N
50 ° (typ.)
30° (typ.)
O
P
26.2
1.03
0.16
1.55
R
3.88
4.20
39.5
0.15
U
V
30.1
1.18
TO3 4-Leads
(*) Measured with Gauge
11/12
L200
Information furnished is believed to be accurateand reliable.However, STMicroelectronics assumes no responsibility for the consequences of
use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted
by implication or otherwise under any patent or patent rights of STMicroelectronics. Specification mentioned in this publication are subject to
change without notice. This publication supersedes and replaces all information previously supplied. STMicroelectronics products are not
authorized for use as critical components in lifesupport devicesor systems withoutexpress writtenapproval of STMicroelectronics.
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