LV5050V
■ Applications
unit: mm
LA5648
■Applications
unit: mm
■ Functions/Features |
● |
● Input UVLO circuit, overcurrent detection function, |
soft start/soft stop function, |
● Output voltage monitor function |
(Under voltage protection with power good and timer |
latch) |
● Synchronized operation is possible between different |
6.5
2011
4.4 | 6.4 |
0.5
110
0.650.220.15
(0.33)
(1.3) | 1.5max |
0.1 |
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RCC power supply controller
■Functions/Features
●RCC power supply controller
●Overcurrent detection function
●Soft start function
●Input UVLO circuit
●Output overcurrent protection timer function
●Base winding voltage detection function
9.14
85
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| 6.4 | 7.62 |
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| 1 | 4 | 0.25 |
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| 1.0 |
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3.9MAX | (3.0) |
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3.2 |
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| 0.51MIN |
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| (0.76) | 2.54 | 0.5 |
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devices |
SANYO: SSOP20(225mil)
SANYO: DIP8(300mil) |
Type | Input Voltage | Output Voltage | Channels | Power Stages | Package | |
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Step down | 7.5V to 16V | Programmable | 1ch | External (NMOS) | SSOP20(225mil) | |
4.5V to 6V | externally | |||||
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| Block Diagram |
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| Input Power |
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| VIN | Supply |
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| Voltage |
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| BG | and |
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| Current |
| POR |
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| BG |
| generator |
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| VLIN5 |
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| refrrence |
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| IREF |
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| 5V REG |
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| Current |
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| Vref |
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| 4.2V |
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| (Allways ON) |
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| bias |
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| / 3.8V |
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| Vref |
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| Internal |
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| 0.8V |
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| Bias |
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COMP |
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| 8.3μA |
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| ILIM | ILIM |
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| Comp |
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CH1 |
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Output |
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| RSNS |
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| ISENSE |
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FB |
| error amp |
| PWM comp |
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| Shifter | Amp | CBOOT |
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| & latch |
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| PWM logic |
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| R Q |
| HDRV |
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| UV |
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| SKIP control |
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0.87Vref |
| Vref |
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| S Q |
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| SW | Output |
3.5μA | 1.6V |
| Corrective |
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| Shoot through |
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SS |
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| ramp |
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| protection |
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| SD | SSEND |
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| SD |
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| sequencer |
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| VDD |
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| 0 deg |
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| LDRV |
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5μA |
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| Active |
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TD |
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| PGND |
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| discharge |
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| Rdson= |
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| POR | CONT1 |
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| 15 | Ω |
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| 2.4V | CONT POR |
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| 5μA |
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| R Q |
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| S | Q | 0 |
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UV |
| SSEND |
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| UV_timeout |
| deg | OSC |
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| 2.4V |
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| 300kHz |
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| PGOOD | UV_DELAY |
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| CT | CLKO SGND |
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| SYNC. pulse out |
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| 5V |
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| 0V |
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Functions | VCC | Features | Package | |
30 | UVLO, primary side PbyPOCP, | DIP8(300mil) | ||
controller | secondary side timer type OCP | |||
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Block Diagram
Np
Nb
| UVLO |
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| VCC |
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1.2V Vref | 3.5V REG |
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OUT |
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LOGIC |
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OCL |
| DET COMP |
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| PWM COMP | 3.5V | SYC | |
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| + |
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| - |
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| - |
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TRIANG OSC | TIMER |
| - |
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| COM |
CF | CT |
| PC | PC |
15 | 16 |