Description
L6599DTR: Switching Controllers Hi Vltg resonant Controller
Mfr. Part#: L6599DTR
Mfr.: STMICRO
Datasheet: 
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ROHS Status:
Quality: 100% Original
Warranty: ONE YEAR
| Topology: |
Half Bridge |
|
| Number of Outputs: |
1 Output |
|
| Switching Frequency: |
500 kHz |
|
| Duty Cycle - Max: |
52 % |
|
| Input Voltage: |
8.85 V to 16 V |
|
| Output Voltage: |
13.3 V |
|
| Output Current: |
800 mA |
|
| Minimum Operating Temperature: |
- 40 C |
|
| Maximum Operating Temperature: |
+ 150 C |
|
| Mounting Style: |
SMD/SMT |
|
| Package / Case: |
SOIC-16 |
|
| Packaging: |
Reel |
|
| Packaging: |
Cut Tape |
|
| Packaging: |
Reel |
|
| Brand: |
STMicroelectronics |
|
| Height: |
1.65 mm |
|
| Length: |
10 mm |
|
| Moisture Sensitive: |
Yes |
|
| Operating Supply Voltage: |
8.85 V to 16 V |
|
| Product Type: |
Switching Controllers |
|
| Series: |
L6599 |
|
| Factory Pack Quantity: |
2500 |
|
| Subcategory: |
PMIC - Power Management ICs |
|
| Type: |
Phase Shift Resonant Controller |
|
| Unit Weight: |
0.007079 oz |
The L6599 is a double-ended controller specific for the resonant half-bridge topology. It provides 50 % complementary duty cycle: the high-side switch and the low-side switch are driven ON\OFF 180° out-of-phase for exactly the same time. Output voltage regulation is obtained by modulating the operating frequency. A fixed deadtime inserted between the turn-OFF of one switch and the turn-ON of the other one guarantees soft-switching and enables high-frequency operation. To drive the high-side switch with the bootstrap approach, the IC incorporates a high-voltage floating structure able to withstand more than 600 V with a synchronous-driven high-voltage DMOS that replaces the external fast-recovery bootstrap diode. The IC enables the designer to set the operating frequency range of the converter by means of an externally programmable oscillator. At start-up, to prevent uncontrolled inrush current, the switching frequency starts from a programmable maximum value and progressively decays until it reaches the steady-state value determined by the control loop. This frequency shift is non linear to minimize output voltage overshoots; its duration is programmable as well. The IC can be forced to enter a controlled burst-mode operation at light load, so as to keep converter's input consumption to a minimum. IC's functions include a not-latched active-low disable input with current hysteresis useful for power sequencing or for brownout protection, a current sense input for OCP with frequency shift and delayed shutdown with automatic restart. A higher level OCP latches off the IC if the first-level protection is not sufficient to control the primary current. Their combination offers complete protection against overload and short circuits. An additional latched disable input (DIS) allows easy implementation of OTP and/or OVP. An interface with the PFC controller is provided that enables to switch off the pre-regulator during fault conditions, such as OCP shutdown and DIS high, or during burst-mode operation
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