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| Part Number | Manufacturer | Description | ||||||
| 1. |  L4990 |
ST Microelectronics | PRIMARY CONTROLLER | 319.53 Kb | 24 Pg. | |||
| 2. | L4990A |
ST Microelectronics | PRIMARY CONTROLLER | 319.53 Kb | 24 Pg. | |||
| 3. | L4990AD |
ST Microelectronics | PRIMARY CONTROLLER | 319.53 Kb | 24 Pg. | |||
| 4. | L4990D |
ST Microelectronics | PRIMARY CONTROLLER | 319.53 Kb | 24 Pg. |
| « Previous 1 Next » |
| 1. |  26.3 Kb • 3 Pages |
Abstract: ... The devices that have been considered in the following examples are the L4990 (PWM pri-mary contoller provided with I/O sync.) and the UC3842 PWM controller without any dedicated pin for sync ... Labels: L4990, Application Notes |
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| 2. |  319.53 Kb • 24 Pages |
Abstract: ... L4990 L4990A. PRIMARY CONTROLLER. CURRENT-MODE CONTROL PWM SWITCHING FREQUENCY UP TO 1MHz LOW START-UP CURRENT < 0.45mA HIGH-CURRENT OUTPUT DRIVE SUITABLE FOR POWER MOSFET (1A) FULLY LATCHED ... Labels: L4990 |
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| 3. |  119.99 Kb • 14 Pages |
Abstract: ... AN891. APPLICATION NOTE. SMPS WITH L4990 FOR MULTISYNC MONITORS by CW Park & G. Gattavari. This paper can be used as design guide of a flyback converter for monitors power supply. The high performance ... Labels: L4990, Application Notes |
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| 4. |  118.19 Kb • 10 Pages |
Abstract: ... of the level shifter with the PWM controller, and fig 2b shows the L4990 oscillator with gate voltage waveforms of. the two transistors. The high voltage level shifter eliminates the need of the ... Labels: L4990, Application Notes |
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| 5. |  71.13 Kb • 4 Pages |
Abstract: ... APPLICATION NOTE. 25W OFF-LINE AUTORANGING BATTERY CHARGER WITH L4990 by N. Tricomi and D. Arrigo. This note describes an off-line autoranging (85Vac-264Vac) battery charger designed to operate ... Labels: L4990, Application Notes |
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| 6. |  115.97 Kb • 10 Pages |
Abstract: ... As soon as the L4990 wakes-up, it generates a pwm signal enabling the start-up circuit. Gate driver The two power mosfets, T1 and T2, are driven by a small transformer designed to satisfy the iso ... Labels: L4990, Application Notes |
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| 7. |  128.57 Kb • 17 Pages |
Abstract: ... L4990. VOUT. Figure 12. L6384 Half Bridge Converter. AN994 APPLICATION NOTE. 13/17. L6385. +HV. 7 8. 6. 5. 2 ... L4990. Figure 14. L6385 Two switch forward converter. L6385. 7. 8. 6. 5. 1. 3. D98IN827. BCD. ”OFF-LINE” HVG ... Labels: L4990, Application Notes |
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| 8. |  219.45 Kb • 17 Pages |
Abstract: ... L4990. VOUT. Figure 12. L6384 Half Bridge Converter. AN994 APPLICATION NOTE. 13/17. L6385. +HV. 7 8. 6. 5. 2 ... L4990. Figure 14. L6385 Two switch forward converter. L6385. 7. 8. 6. 5. 1. 3. D98IN827. BCD. "OFF-LINE" HVG ... Labels: L4990, Application Notes |
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