View AS7805AD-E1_747868.PDF datasheet online --- IC-ON-LINE

Datasheet File OCR Text:

Preliminary Datasheet 1A 3-TERMINAL POSITIVE VOLTAGE REGULATOR General Description
The AS7805A is a three terminal positive regulator designed for a wide variety of applications including local, on-card regulation. The AS7805A is complete with internal current limiting, thermal shutdown protection, and safe-area compensation which make it virtually immune from output overload. If adequate heat sinking is provided, this IC can deliver output current up to 1A. The AS7805A is available in TO-220-3 and TO-252-2 (1) packages.
AS7805A
Features
* * * * * * * * Output Current up to 1A Fixed Output Voltage of 5V Output Voltage Accuracy of 4% over the Full Temperature Range Internal Short Circuit Current Limiting Internal Thermal Overload Protection Output Transistor Safe-area Protection Low Load Regulation Stable Performance in High Temperature
Applications
* * * * High Efficiency Linear Regulator Post Regulation for Switching Supply Microprocessor Power Supply Mother Board
TO-220-3
TO-252-2 (1)
Figure 1. Package Types of AS7805A
Mar. 2007 Rev. 1. 1 1
BCD Semiconductor Manufacturing Limited
Preliminary Datasheet 1A 3-TERMINAL POSITIVE VOLTAGE REGULATOR Pin Configuration AS7805A
T Package (TO-220-3)
D Package (TO-252-2 (1) )
3 2 1
OUTPUT GND INPUT
3 2 1
OUTPUT GND INPUT
Figure 2. Pin Configuration of AS7805A (Top View)
Pin Description
Pin Number Pin Name Function
1 2 3
INPUT GND OUTPUT
Voltage Input Ground Voltage Output
Mar. 2007 Rev. 1. 1 2
BCD Semiconductor Manufacturing Limited
Preliminary Datasheet 1A 3-TERMINAL POSITIVE VOLTAGE REGULATOR Functional Block Diagram
1
R9 Q9 Q14 R16 Q21 Q24 C1 R1 Q18 R12 Q3 Q6 Q10 R3 Q11 Q7 Q1 Q4 R4 Q8 R11 R5 R6 Q23 Q13 Q2 Q5 Q15 C2 Q19 Q12 R2 R8 R10 Q17 Q20 R19 R15 R7 Q16 R14 Q22 R18 R2 2 R17 R23 R20 R21 D1 Zener INPUT
AS7805A
3
OUTPUT
R13
2
GND
Figure 3. Functional Block Diagram of AS7805A
Mar. 2007 Rev. 1. 1 3
BCD Semiconductor Manufacturing Limited
Preliminary Datasheet 1A 3-TERMINAL POSITIVE VOLTAGE REGULATOR Ordering Information AS7805A
AS7805A Circuit Type Package T: TO-220-3 D: TO-252-2 (1)
E1: Lead Free TR: Tape and Reel Blank: Tube
Package TO-220-3 TO-252-2 (1)
Temperature Range -40 to 125oC -40 to 125oC
Part Number AS7805AT-E1 AS7805AD-E1 AS7805ADTR-E1
Marking ID AS7805AT-E1 AS7805AD-E1 AS7805AD-E1
Packing Type Tube Tube Tape & Reel
BCD Semiconductor's Pb-free products, as designated with "E1" suffix in the part number, are RoHS compliant.
Mar. 2007 Rev. 1. 1 4
BCD Semiconductor Manufacturing Limited
Preliminary Datasheet 1A 3-TERMINAL POSITIVE VOLTAGE REGULATOR Absolute Maximum Ratings (Note 1)
Parameter Input Voltage Lead Temperature (Soldering, 10sec) Power Dissipation Operating Junction Temperature Storage Temperature Range Thermal Resistance ESD (Human Body Model) ESD (Machine Model) Symbol VIN TLEAD PD TJ TSTG JA ESD ESD TO-220-3 TO-252-2 (1) 6000 500 Value 36 260 Internally Limited 150 -65 to 150 60
oC/W
AS7805A
Unit V
o
C
W
o
C
oC
100 V V
Note 1: Stresses greater than those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under "Recommended Operating Conditions" is not implied. Exposure to "Absolute Maximum Ratings" for extended periods may affect device reliability.
Recommended Operating Conditions
Parameter Input Voltage Operating Junction Temperature Range Symbol VIN TJ -40 Min Max 25 125 Unit V
oC
Mar. 2007 Rev. 1. 1 5
BCD Semiconductor Manufacturing Limited
Preliminary Datasheet 1A 3-TERMINAL POSITIVE VOLTAGE REGULATOR Electrical Characteristics
VIN=10V, IOUT=1A, TJ=-40 to 125oC, unless otherwise specified. Parameter Symbol TJ=25oC Output Voltage VOUT IOUT=5mA to 1A, VIN=7.5V to 20V, PD15W VIN=7.5V to 20V, IOUT=500mA, TJ=25oC VIN=7.5V to 20V, IOUT=500mA, TJ=75oC VIN=10V, IOUT=5mA to 1A, TJ=25oC VIN=10V, IOUT=0 VIN=8V to 25V, IOUT=500mA, TJ=25oC IOUT=5mA to 1A, TJ=25oC VIN=8V to 18V, f=120Hz, IOUT=500mA VOUT=1%, IOUT=1A, TJ=25oC f=10Hz to 100kHz, TA=25oC f=1kHz VIN=35V, TA=25oC VIN=10V, TJ=25oC Conditions Min 4.9 4.8 25 15 20 3.2 0.3 0.08 70 2 10 10 0.05 2.2 0.4 80 Typ 5 Max 5.1 V 5.2 50 40 50 6 0.8 mA 0.5 dB V V/VO m A A mV/oC ppm/oC mV mV mV mA Unit
AS7805A
Line Regulation
VRLINE
Load Regulation Quiescent Current Quiescent Current Change Ripple Rejection Dropout Voltage Output Noise Voltage Output Resistance Short Circuit Current Peak Output Current Output Voltage Temperature Coefficient
VRLOAD IQ IQ PSRR VDROP NO RO ISC IPK VOUT/T (VOUT/VOUT)/T
Mar. 2007 Rev. 1. 1 6
BCD Semiconductor Manufacturing Limited
Preliminary Datasheet 1A 3-TERMINAL POSITIVE VOLTAGE REGULATOR Typical Performance Characteristics AS7805A
5.050
2.5
TJ=-40 C
2.0
O
5.025 5.000
VIN=10V IOUT=10mA IOUT=1A
TJ=25 C
Output Voltage (V)
O
Peak Output Current (A)
TJ=125 C
1.5
O
4.975 4.950 4.925 4.900
1.0
0.5
4.875 4.850 -40
0.0 3 6 9 12 15 18 21 24
-20
0
20
40
60
O
80
100
120
VIN-VOUT (V)
Junction Temperature ( C)
Figure 4. Peak Output Current vs. Input/Output Differential Voltage
Figure 5. Output Voltage vs. Junction Temperature
5.050 5.025 5.000
O
5.050 5.025 5.000
VIN=10V, TJ=25 C
Output Voltage (V)
Output Voltage (V)
4.975 4.950 4.925 4.900 4.875 4.850 0 200 400 600 800 1000 1200 1400
4.975 4.950 4.925 4.900 4.875 4.850 8 10 12 14 16 18 20 22 24
IOUT=500mA, TJ=25 C IOUT=500mA, TJ=75 C IOUT=1A, TJ=25 C
O O
O
Output Current (mA)
Input Voltage (V)
Figure 6. Output Voltage vs. Output Current
Figure 7. Output Voltage vs. Input Voltage
Mar. 2007 Rev. 1. 1 7
BCD Semiconductor Manufacturing Limited
Preliminary Datasheet 1A 3-TERMINAL POSITIVE VOLTAGE REGULATOR Typical Performance Characteristics (Continued) AS7805A
6
100
5
VIN=10V IOUT=0
80
Quiescent Current (mA)
4
Ripple Rejection (dB)
60
3
40
2
20
1
0 -40
-20
0
20
40
60
O
80
100
120
0 10
100
1k
10k
100k
1M
Junction Temperature ( C)
Frequency (Hz)
Figure 8. Quiescent Current vs. Junction Temperature
Figure 9. Ripple Rejection vs. Frequency
2.5
30
25
2.0
Package: TO-220-3 2 Heatsink: 60*43mm
Power Dissipation (W)
Dropout Voltage (V)
20
1.5
15
1.0
10
IOUT=100mA
0.5
IOUT=500mA IOUT=1A
5
0.0 -40
-20
0
20
40
60
O
80
100
120
0 -40
-20
0
20
40
60
O
80
100
120
Junction Temperature ( C)
Junction Temperature ( C)
Figure 10. Dropout Voltage vs. Junction Temperature
Figure 11. Power Dissipation vs. Junction Temperature
Mar. 2007 Rev. 1. 1 8
BCD Semiconductor Manufacturing Limited
Preliminary Datasheet 1A 3-TERMINAL POSITIVE VOLTAGE REGULATOR Typical Performance Characteristics (Continued) AS7805A
25
2
IOUT (1A/Div)
VIN (5V/Div)
20 15 10
AS7805A
1 0
0.005A
AS7805A
-1
VOUT (50mV/Div)
VOUT (100mV/Div)
Time (100s/Div)
0 -50 -100 -150
100 0 -100 -200
Time (40s/Div)
Figure 12. Line Transient (Conditions: IOUT=500mA, COUT=0.1F)
Figure 13. Load Transient (Conditions: VIN=10V, CIN=0.33F, COUT=0.1F)
Mar. 2007 Rev. 1. 1 9
BCD Semiconductor Manufacturing Limited
Preliminary Datasheet 1A 3-TERMINAL POSITIVE VOLTAGE REGULATOR Typical Application AS7805A
VIN
0.33F
AS7805A
INPUT OUTPUT GND
0.1F
VOUT
Figure 14. Typical Application of AS7805A
Mar. 2007 Rev. 1. 1 10
BCD Semiconductor Manufacturing Limited
Preliminary Datasheet 1A 3-TERMINAL POSITIVE VOLTAGE REGULATOR Mechanical Dimensions TO-220-3 Unit: mm(inch) AS7805A
9.660(0.380) 10.660(0.420) 3.560(0.140) 4.060(0.160)
2.580(0.102) 3.380(0.133)
0.550(0.022) 1.350(0.053)
1.850(0.073)
0.200(0.008)
14.230(0.560) 16.510(0.650)
7
1.500(0.059)
8.520(0.335) 9.520(0.375)
27.880(1.098) 30.280(1.192)
3.560(0.140) 4.820(0.190) 2.080(0.082) 2.880(0.113)
7
3
1.160(0.046) 1.760(0.069)
0.381(0.015)
60 0.813(0.032)
8.763(0.345)
60
0.381(0.015) 2.540(0.100) 2.540(0.100)
0.356(0.014) 0.406(0.016)
Mar. 2007 Rev. 1. 1 11
BCD Semiconductor Manufacturing Limited
Preliminary Datasheet 1A 3-TERMINAL POSITIVE VOLTAGE REGULATOR Mechanical Dimensions (Continued) TO-252-2(1) Unit: mm(inch) AS7805A
1.350(0.053) 1.650(0.065)
6.350(0.250) 6.650(0.262) 5.200(0.205) 5.400(0.213) 0.430(0.017) 0.580(0.023)
2.200(0.087) 2.400(0.094)
4.300(0.169) 5.400(0.212)
0.600(0.024) 0.900(0.035)
9.500(0.374) 9.900(0.390)
0.000(0.000) 0.127(0.005) 5 0.700(0.028) 0.900(0.035) 0.500(0.020) 0.700(0.028) 4.500(0.177) 4.700(0.165) 5
5.400(0.213) 5.700(0.224)
1.400(0.055) 1.780(0.070)
0.430(0.017) 0.580(0.023)
Mar. 2007 Rev. 1. 1 12
BCD Semiconductor Manufacturing Limited
2.550(0.100) 2.900(0.114)
2.300TYP
3 4
3.800REF(0.150REF)
4.800(0.189) 6.500(0.256)
8
http://www.bcdsemi.com
IMPORTANT NOTICE BCD Semiconductor Manufacturing Limited reserves the right to make changes without further notice to any products or specifications herein. BCD Semiconductor Manufacturing Limited does not assume any responsibility for use of any its products for any particular purpose, nor does BCD Semiconductor Manufacturing Limited assume any liability arising out of the application or use of any its products or circuits. BCD Semiconductor Manufacturing Limited does not convey any license under its patent rights or other rights nor the rights of others.
MAIN SITE BCD Semiconductor Manufacturing Limited
- Wafer Fab Shanghai SIM-BCD Semiconductor Manufacturing Limited 800, Yi Shan Road, Shanghai 200233, China Tel: +86-21-6485 1491, Fax: +86-21-5450 0008
BCD Semiconductor Manufacturing Limited
- IC Design Group Advanced Analog Circuits (Shanghai) Corporation 8F, Zone B, 900, Yi Shan Road, Shanghai 200233, China Tel: +86-21-6495 9539, Fax: +86-21-6485 9673
REGIONAL SALES OFFICE
Shenzhen Office Shanghai SIM-BCD Semiconductor Manufacturing Co., Ltd. Shenzhen Office Advanced Analog Circuits (Shanghai) Corporation Shenzhen Office Room E, 5F, Noble Center, No.1006, 3rd Fuzhong Road, Futian District, Shenzhen 518026, China Tel: +86-755-8826 7951 Fax: +86-755-8826 7865 Taiwan Office BCD Semiconductor (Taiwan) Company Limited 4F, 298-1, Rui Guang Road, Nei-Hu District, Taipei, Taiwan Tel: +886-2-2656 2808 Fax: +886-2-2656 2806 USA Office BCD Semiconductor Corporation 30920 Huntwood Ave. Hayward, CA 94544, U.S.A Tel : +1-510-324-2988 Fax: +1-510-324-2788

▲Up To Search▲

Price & Availability of AS7805AD-E1

	To Download AS7805AD-E1 Datasheet File
If you can't view the Datasheet, Please click here to try to view without PDF Reader .