ETC GM78R09

GM78R09
LOW DROPOUT VOLTAGE REGULATOR
Power Management
Features
Description
1A / 9V Output low dropout voltage regulator
THE GM78R09 is a low - dropout voltage regulator suitable for various electronic equipments. It provides constant voltage power source with TO-220 4 lead full mold
package. Dropout voltage of GM78R09 is below 0.5V in
full rated current (1A). This regulator has various function such as peak current protection, thermal shut down,
overvoltage protection and output disable function.
TO-220 Full-Mold package (4PIN)
Overcurrent protection, Thermal shutdown
Overvoltage protection, Short-Circuit Protection
With output disable function
TYPIC APPLICATION CIRCUITS
TO-220F- 4L
VIN
Ci
+
VO
GM78R09
Revision 2, Aug 2003
34
Co +
GND
VDIS
Disable Signal
— Ci is required if regulator is located an appreciable distance from power supply filter.
— Co improves stability and transient response. (Co > 47µF)
www.gammamicro.com
PRELIMINARY
GM78R09
12
1. VIN
2. VO
3. GND
4. VDIS
1
GM78R09
PIN CONFIGURATIONS
TO - 220F - 4L
78R09
AYW W
VIN
A
: Assemble Location
Y
: Year
WW : Work Week
VDIS
GND
VO
ORDERING INFORMATION
Ordering Number
GM78R09-TBF4T
Package
Shipping
TO - 220F-4L
50 Units/ Tube
ABSOLUTE MAXIMUM RATINGS (limiting values, per diode)
GM78R09
Symbol
2
Parameter
Value
Unit
Remark
VIN
Input Voltage
35
V
-
VDIS
Disable Voltage
35
V
-
IO
Output Current
1.0
A
-
Pd1
Power Dissipation 1
1.5
W
No Heatsink
Pd2
Power Dissipation 2
15
W
Whit Heatsink
TJ
Junction Temperature
+150
°C
-
TOPR
Operating Temperature
-20 ~ +80
°C
-
R
JC
Thermal Resistance, Junction - to Case (Note 2)
4.31
°C/W
-
R
JA
Thermal Resistance, Junction - to Air (Note 2 )
48.83
°C/W
-
150
°C
-
Ttsd
Thermal Shutdown Temperature
GM78R09
Electrical Characteristics (VIN = 11V, IO = 0.5A, TA = 25°C, unless otherwise specified)
Symbol
Conditions
Min.
Typ.
Max.
Unit
VO
-
8.78
9
9.22
V
Load Regulation
Rload
5mA < IO < 1A
-
0.1
2.0
%
Line Regulation
Rline
10V < VIN < 25V
-
0.5
2.5
%
Ripple Rejection Ratio
RR
Note 1
45
55
-
dB
Dropout Voltage
Vdrop
IO = 1A
-
-
0.5
V
Disable Voltage High
VdisH
Output Active
2.4
-
-
V
Disable Voltage Low
VdisL
Output Disabled
-
-
0.8
V
Disable Bias Current High
IdisH
Vdis = 2.7V
-
-
20
µA
Disable Bias Current Low
IdisL
Vdis = 0.4V
-
-
-0.4
mA
IQ
IO = 0A
-
-
10
mA
Parameter
Output Voltage
Quiescent Current
Note:
1. These parameters, although guaranteed, are not 100% tested in production.
2. Junction - to - case thermal resistance test environments.
-. Pneumatic heat sink fixture.
-. Clamping pressure 60psi through 12mm diameter cylinder.
-. Thermal grease applied between PKG and heat sink fixture.
BLOCK DIAGRAM(POSITIVE LOGIC)
Q1
VIN 1
THERMAL SHUTDOWN
BANDGAP REFERENCE
2 VO
OVERVOLTAGE
PROTECTION
+
R1
SOA PROTECTION
HIGH/ LOW
+
OUTPUT
ON/ OFF
SHORT-CIRCUIT
PROTECTION
1.4V
3
GND
R2
GM78R09
Vdis 4
3
GM78R09
TYPICAL PERFORMANCE CHARACTERISTICS
10
50
9
Quiescent Current IQ (mA)
Output Voltage VO (V)
8
RL =
7
6
5
RL = 9W
4
3
2
40
30
20
10
RL =
1
00
5
10
15
20
0
0
25
5
7
5.06
6
5.04
5
4
3
2
1
0
0.5
1
1.5
2.0
2.5
5.00
4.98
4.96
4.92
-25
3
0
25
50
75
100
125
Disable Voltage Vdis (V)
TEMPERATURE TJ (°C)
Figure 3. Output Voltage vs.
Disable Voltage
Figure 4. Output Voltage vs. Input Voltage
10
0.6
0.5
8
Dropout Voltage Vdrop (V)
Quiescent Current IQ (mA)
5.02
4.94
0
GM78R09
15
Figure 2. Quiescent Current vs.
Input Voltage
Output Voltage VO (V)
Output Voltage VO (V)
Figure 1. Output Voltage vs. Input Voltage
4
10
Input Voltage VIN (V)
Input Voltage (V)
6
4
2
0.4
IO = 3A
2.0A
0.3
1.0A
0.2
0.1
0.5A
0
0
5
10
Junction temperature TJ(°C)
Figure 5. Quiescent Current vs.
Temperature(TJ)
15
0
-25
0
25
50
75
100
Junction temperature TJ (°C)
Figure 6. Quiescent Current vs.
Temperature(TJ)
125
GM78R09
Power Management
TYPICAL PERFORMANCE CHARACTERISTICS
Power dissipation PD (W)
20
15
10
5
0
-25
0
25
50
75
100
125
TEMPERATURE TA (°C)
Figure 7. Quiescent Current vs.
Temperature(TJ)
TO-220F-4L PFABPACK PACKAGE OUTLINE DIMENSIONS
4.50 ± 0.20
3.20 ± 0.20
10.00 ± 0.20
(5.00)
(0.35) (0.35)
(3- 1.50 Dp0.10)
2.80 ± 0.20
(1.50)
3.40 ± 0.10
(10.40)
(5°)
15.70 ± 0.20
(1.0)
15.60 ± 0.20
(3.30)
6.30 ± 0.30
(13.60)
0.15 ± 0.10
0.50
(1.80)
2.54TYP
(1.19)
(2.54 ± 0.25)
(7.62)
+0.10
-0.05
GM78R09
1.25MIN
1.50MAX
5