 |
|
| If you can't view the Datasheet, Please click here to try to view without PDF Reader . |
|
|
|
| If you can't view the Datasheet, Please click here to try to view without PDF Reader . |
|
|
| Datasheet File OCR Text: |
| www.fairchildsemi.com KA7511 SMPS Controller Features * * * * Wide Operating Range Under Voltage Lockout Direct Switching TR Drive Low Start-Up Current Description The KA7511 drives, regulates and monitors the main switching element in a SMPS based on the nonsynchronous flyback theory. Because of the wide regulating range and the high voltage stability during large load changes, the power supplies for TV receivers and video recorders can be realized. 10-SIP H/S 1 Internal Block Diagram Rev. 5.0 (c)2000 Fairchild Semiconductor International KA7511 Absolute Maximum Ratings (TA=25C) Parameter Supply Voltage Reference Output Voltage Zero Passage Identification Voltage Control Amplifier Voltage Collector Current Simulation Voltage Blocking Input Voltage Base Current Cut-Off Point Voltage Base Current Amplifier Output Voltage Collector Current Simulation Current Blocking Input Current Base Current Cut-Off Point Current Base Current Amplifier Output Current Operating Temperature Range Symbol VCC VREF V2 V3 V4 V5 V7 V8 I4 I5 I7 I8 TA Value 20 6 0.6 3 8 8 V9 V9 5 5 1.5 -1.5 0 ~ +70 Unit V V V V V V V V mA mA A A C Electrical Characteristics (TA = 25C, unless otherwise specified) Parameter Supply Voltage Start Operation Supply Current (1) (2) (3) Switch On V1 ICC1 ICC2 ICC3 V9 V9 = 2V V9 = 5V V9 = 10V 11.0 1.5 2.4 11.8 0.5 2.0 3.2 12.3 mA mA mA V Symbol VCC Conditions Min. Typ. 15 Max. 18 Unit V 2 KA7511 Electrical Characteristics (TA = +25C, unless otherwise specified) Parameter Supply Current (4) (5) Reference Voltage(1) (2) Temperature Coefficient Of VREF Control Voltage Collector Current Simulation Voltage Clamping Voltage Output Voltage Symbol ICC4 ICC5 VREF1 VREF2 VREF/T V3 V4 V4 V5 V7 V8 V8 Feedback Voltage Supply Current (6) Switch-Off Voltage (1) (2) Blocking Input Voltage V8 Off Voltage V1 Off Voltage Note : * After Switch-On Conditions V(CTRL) = -10V V(CTRL) = 0V I1 0.1mA I1 = 5mA V(CTRL) = 0V V(CTRL) = 0V V(CTRL) = 0 ~ -10V V(CTRL) = 0V V(CTRL) = 0V V(CTRL) = 0 ~ -10V V5 1.9V V5 1.9V V5 1.9V V(CTRL) = 0V V(CTRL) = 0V V(CTRL) = 0V Min. 110 50 4.0 4.0 2.3 1.8 0.3 6 2.7 2.7 1.6 14 1.3 1.8 V1/2- 0.1 6.7 0.3 Typ. 135 75 4.2 4.2 0.1 2.6 2.2 0.4 7 3.3 3.4 2.0 0.2 22 1.5 2.1 V1/2 7.4 0.6 Max. 160 100 4.5 4.4 2.9 2.5 0.5 8 4.0 4.0 2.4 28 1.8 2.5 7.8 1 Unit mA mA V V % V V V V V V V V mA V V V V V Normal Operation (VCC = 10V, V(CTRL) = -10V, V(CLK) = 0.5V, f = 20KHz, D = 0.5) V2 ICC6 V7(OFF) V4(OFF) V5(B) V9(OFF) V9(OFF) Protective Operation (VCC = 10V, V(CTRL) = -10V, V(CLK) = 0.5V, f = 20KHz, D = 0.5) Figure 1. Test Circuit 3 KA7511 Figure 2. VREF VS IREF (TA=25C) Figure 3. ICC VS VREF (TA=25C) 4 #1 Package #10 25.75 0.10 1.013 0.004 26.05 MAX 1.026 2.54 0.100 0.50 0.10 0.020 0.004 ( 1.50 ) 0.059 1.30 0.10 0.051 0.004 Mechanical Dimensions 0.50 0.10 0.020 0.004 1.30 ( ) 0.051 1.65 0.10 0.065 0.004 10-SIP H/S 7.00 0.30 0.276 0.012 8.90 0.20 0.350 0.008 1.00 0.20 0.039 0.008 13.65 0.30 0.537 0.012 Dimensions in millimeters 3.80 0.20 0.150 0.008 16.80 MAX 0.661 3.25 0.20 0.128 0.008 23.86 0.20 0.939 0.008 KA7511 5 KA7511 Ordering Information Product Number KA7511 Package 10-SIP H/S Operating Temperature 0 ~ +70C 6 KA7511 7 KA7511 DISCLAIMER FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD DOES NOT ASSUME ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN; NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS. LIFE SUPPORT POLICY FAIRCHILD'S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD SEMICONDUCTOR INTERNATIONAL. As used herein: 1. Life support devices or systems are devices or systems which, (a) are intended for surgical implant into the body, or (b) support or sustain life, and (c) whose failure to perform when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in a significant injury of the user. www.fairchildsemi.com 9/25/00 0.0m 001 Stock#DSxxxxxxxx 2000 Fairchild Semiconductor International 2. A critical component in any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness. |
Price & Availability of KA7511
 |
|
|
|
|
All Rights Reserved © IC-ON-LINE 2003 - 2022 |
| [Add Bookmark] [Contact Us] [Link exchange] [Privacy policy] |
|
Mirror Sites : [www.datasheet.hk]
[www.maxim4u.com] [www.ic-on-line.cn]
[www.ic-on-line.com] [www.ic-on-line.net]
[www.alldatasheet.com.cn]
[www.gdcy.com]
[www.gdcy.net] |