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PDF FPF2498 Data sheet ( Hoja de datos )
| Número de pieza | FPF2498 | |
| Descripción | Adjustable OVP | |
| Fabricantes | Fairchild Semiconductor | |
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February 2015
FPF2498
Adjustable OVP with 28 V Input OVT Load Switch
Features
Function
Input
Advanced Load Switch
3.5 – 12 V
Features
28 V Absolute Ratings on VIN
1.7 A Maximum Continuous
Current Capability
80 mΩ RON Typical
Over-Voltage Protection (OVP)
Over-Current Protection (OCP)
Thermal Shutdown
Under-Voltage Lockout (UVLO)
Reverse Current Blocking (RCB)
ESD
15 kV IEC 61000-4-2 Air Gap
Operating
Temperature Range
-40 to +85°C
Package
6-Ball WLCSP (1.05 x 1.3 x
0.625 mm, 0.4 mm Pitch)
Ordering
Information
FPF2498BUCX
Top Mark
TK
Description
The FPF2498 advanced load-management switch
targets applications requiring a highly integrated
solution. It disconnects loads powered from the DC
power rail (<12 V) with stringent off-state current targets
and high load capacitances (<100 µF). The FPF2498
consists of a slew-rate controlled low-impedance
MOSFET switch. FPF2498 has over-voltage protection
and over-temperature protection.
Applications
Cellular Phones, Smart Phones
Tablets
Related Resources
FPF2498 Evaluation Board
FPF2498
VIN
RCB VOUT
3-6V CIN
R1
OVLO
OVP
UVLO
R2
CONTROL
Charge
Pump
CLOAD
FLAGB
V_IO
Rpull-up
OFF ON
ON
Thermal
Shutdown
GND
Figure 1. Block Diagram and Typical Application
Note:
1. Recommend CLOAD value be larger than 2.2 μf.
© 2013 Fairchild Semiconductor Corporation
FPF2498 • Rev. 1.11
www.fairchildsemi.com
1 page  
Electrical Characteristics
Unless otherwise noted; VIN=3.5 to 5.5 V, TA=-40 to +85°C; typical values are at VIN=5 V and TA=25°C.
Symbol
tRESTART
tOCP
Parameter
Over-Current Blanking Time(6)
Over-Current Response Time(6)
tHOCP Hard Over-Current Response Time
tFLAGB_Release
Over-Current/Voltage/Temp. Flag
Release Time(6)
Conditions
VIN=5 V IOUT ≥ 1.7 A
Moderate Over-Current Condition;
IOUT ≥ ILIM VOUT ≤ VIN
Moderate Over-Current Condition;
IOUT ≥ ILIM VOUT ≤ 0 V
Time for Flag to Release when
Fault Condition Removed
Notes:
5. TA=25°C.
6. This parameter is guaranteed by design and characterization; not production tested.
7. tDON/tDOFF/tR/tF are defined in figure below.
8. tON=tR + tDON.
9. tOFF=tF + tDOFF.
10. After tREADY, the device is ready for maximum DC current load condition.
Min. Typ. Max. Unit
64 ms
4 µs
3 µs
100 ms
© 2013 Fairchild Semiconductor Corporation
FPF2498 • Rev. 1.11
5
www.fairchildsemi.com
5 Page | ||
| Páginas | Total 9 Páginas | |
| PDF Descargar | [ Datasheet FPF2498.PDF ] | |
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