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点击图片查看原图WP3881L can disconnect the systems from its output pin(OUT) in case wrong input operating conditions are detected. The system is positiveovervoltage protected up to 28V. The overvoltage thresholds (OVLO) is 5.95 V.
WP3881L internal Thermal-Shutdown Protection.
The device is packaged in advanced full-Green compliant Wafer Level Chip Scale Packaging (WLCSP12).
Features
●4.8A Continuous Current Capability
●Typical RON: 35 mΩ N-Channel MOSFET
●VIN Operating Range: 2.1V to 28V
●Overvoltage Lockout: OVLO=5.95V(TYP.)
●Overvoltage-Protection Response Time: 100ns(TYP.)
●OVLO Threshold Range: +4V to +20V
●Startup Debounce Time: 21ms(TYP.)
●Internal Thermal-Shutdown Protection
●Surge immunity to ± 100V
●ESD Protected: Human Body Model: JESD22-A114(All pins) ±2KV
●CSP12 Package (ball pitch=0.4mm)
Electrical Characteristics
Unless otherwise noted, typical values are at VIN=5V and TA=25°C.
SYMBOL | P***METERS | CONDITIONS | MIN | TYP | MAX | UNIT |
Basic Operation | ||||||
VIN | Input Voltage |
| 2.1 |
| 28 | V |
IIN | VIN Quiescent Current | VIN=5V, OUT floating |
|
| 220 | μA |
RON | On-Resistance of Switch IN-OUT | VIN =5.0V, IOUT=1A |
| 35 | 42 | mΩ |
VOVLO | Overvoltage protect of VIN | VIN rise up | 5.90 | 5.95 | 5.99 | V |
| Overvoltage protect hysteresis of VIN |
|
| 0.15 |
| V |
| Adjustable OVLO Threshold Range |
| 4 |
| 20 | V |
VOVLO_TH | OVLO Set Threshold |
| 1.18 | 1.2 | 1.22 | V |
VOVLO_SELECT | External OVLO Select Threshold |
| 0.2 |
| 0.3 | V |
VDET | regulation output of VBUS_DET | VIN =12V，=low | 6 |
| 9.5 | V |
VIH | Input Logic High Voltage |
| 1.4 |
|
| V |
VIL | Input Logic Low Voltage |
|
|
| 0.3 | V |
| Thermal Shutdown |
|
| 150 |
| oC |
| Thermal-shutdown Hysteresis |
|
| 20 |
| oC |
Dynamic Characteristics: see figure | ||||||
tDEB | Debounce time | Time from 2.1VIN OVLO to VOUT = 10% of VIN |
| 21 |
| ms |
tSS | Soft-start time | Time from 2.1VIN OVLO to VOUT = 90% of VIN |
| 22 |
| ms |
tOFF_RES | Switch turn-off response time | VIN > VOVLO to VOUT stop rising |
| 100 |
| ns |
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