FPF2488UCX [ONSEMI]

双通道过压保护开关;


型号：	FPF2488UCX
厂家：	ONSEMI
描述：	双通道过压保护开关开关
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中文：	中文翻译
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February 2015

FPF2488

Dual Channel Over-Voltage Protection Load Switch

Description

Features

The FPF2488 features a 2-channel power switch, which

offers surge protection and Over-Voltage Protection

(OVP), to protect downstream components and

enhancing overall system robustness.

Dual Channel Power Switch (V_BUSand V_IF)

Surge Protection under IEC 61000-4-5

V_BUS: ±100 V

Channel one (V_BUS) is an active-low, 28 V/2.5 A rated,

power MOSFET switch with an internal clamp

supporting ±100 V surge protection, highly accurate

fixed OVP at 10.0 V (±100 mV), and OTG functionality.

Channel two (V_IF) is a conditional active-high, 6 V/6 A

rated, power MOSFET switch with an integrated TVS

supporting ± 40 V surge protection and fixed OVP at

5.25 V (± 250 mV). V_IFalso provides Reverse Current

Blocking (RCB) during its OFF state to minimize

leakage current.

V_IF: ± 40 V

Input Voltage Range

V_BUS: 2.5 V ~ 23 V

V_IF: 3.1 V ~ 5.5 V

Max Continuous Current Capability

V_BUS: 2.5 A

V_IF: 6 A

Ultra Low On-Resistance

V_{BUS_DET}is paired with always ON LDO to power

downstream devices even with VBUS is greater than

2.5 V, even when disabled through the ONB pin. This

provides power sequence control or a host controlled

configuration in system.

V_BUS: Typ. 33 mΩ

V_IF: Typ. 10 mΩ

Over Voltage Protection

V_BUS: 10 V ± 100 mV

V_IF: 5.25 V ± 250 mV

The FPF2488 is available in a 15-bump, 1.6 mm x

2.2 mm Wafer-Level Chip-Scale Package (WLCSP) with

0.4 mm pitch.

LDO Output based V_BUS__DETfor V_BUSDetection

Related Resources

Active Low Control for V_BUSPath

OTG Functionality on V_BUSPath

http://www.fairchildsemi.com/

Conditional Active High Control for V_IFPath

Reverse-Current Blocking for V_IFPath

Applications

Mobile Handsets and Tablets

Wearable Devices

Ordering Information

Operating Temperature

Packing

Method

Part Number

Top Mark

Package

Range

FPF2488UCX

-40°C – +85°C

15-Ball, 0.4 mm Pitch WLCSP

Tape & Reel

www.fairchildsemi.com

FPF2488 • Rev. 1.6

Application Diagram

Battery

Charger

Travel

Adapter

System

VOUT

BAT

VBUS

VIF

Test JIG

FPF2488

BATTERY

ONB

PMIC

VBUS_DET

GND

Figure 1.

Typical Application

Block Diagram

FPF2488

VOUT

BAT

VBUS

VIF

TVS

OVLO

RCB

VBUS

UVLO

OVLO

LDO

VBUS_DET

CONTROL

LOGIC

w/ Charge

pump

ONB

THERMAL

SHUTDOWN

GND

Figure 2.

Functional Block Diagram

www.fairchildsemi.com

FPF2488 • Rev. 1.6

Pin Configuration

VOUT

ONB

VOUT

VBUS

GND

VIF

VBUS

GND

VIF

GND

BAT

VBUS

VBUS_

DET

VBUS_

DET

GND

BAT

VIF

BAT

Figure 3.

Pin Configuration (Top View)

Figure 4.

Pin Configuration (Bottom View)

Pin Definitions

Name

Bump

Type

Input/Supply Switch Input and Device Supply

Output Switch Output to Load

Input/Supply Switch Input and Device Supply

Description

V_BUS

VOUT

V_IF

B2, B3

A1, A2

D2, D3, E3

D1, E1, E2

BAT

Output

Input

Switch Output to Battery

Regulated Output according to V_BUS

Active HIGH: V_IFpath only and when BAT is valid prior to V_IF

Active LOW: V_BUSpath only

V_{BUS_DET}

ONB

GND

Input

C1, C2

GND

Ground

www.fairchildsemi.com

FPF2488 • Rev. 1.6

Absolute Maximum Ratings

Stresses exceeding the absolute maximum ratings may damage the device. The device may not function or be

operable above the recommended operating conditions and stressing the parts to these levels is not recommended.

In addition, extended exposure to stresses above the recommended operating conditions may affect device reliability.

The absolute maximum ratings are stress ratings only.

Symbol

Parameter

V_BUSto GND & V_BUSto VOUT=GND or Float

V_IFto GND

Min.

Max. Unit

V_BUS

V_IF

-0.3

-2⁽¹⁾

-0.3

29.0

V_IN+ 0.3

V_IF+ 0.3

V_OUT

V_OUTto GND

BAT

BAT to GND

V_{BUS_DET}

V_ON(B)

V_{BUS_DET}to GND

ONB or ON to GND

Continuous V_BUSCurrent

Peak V_BUSCurrent (5 ms)

Continuous V_IFCurrent

Peak V_IFCurrent (5 ms)

2.5

I_{IN_VBUS}

I_{IN_VIF}

I_{IN_VBUS_DET}Continuous V_{BUS_DET}Current

°C

C

°C/W

t_PD

T_STG

T_J

Total Power Dissipation at T_A=25°C

1.54

+150

+260

81⁽²⁾

Storage Temperature Range

-65

Maximum Junction Temperature

T_L

Lead Temperature (Soldering, 10 Seconds)

Thermal Resistance, Junction-to-Ambient⁽²⁾(1-in.²Pad of 2-oz. Copper)

_JA

Air Discharge

15.0

8.0

IEC 61000-4-2 System

Level ESD

Contact Discharge

Human Body Model,

ANSI/ESDA/JEDEC JS- All Pins

001-2012

ESD

Electrostatic Discharge

Capability

Charged Device Model,

All Pins

JESD22-C101

V_BUS

V_IF

±100

±40

IEC 61000-4-5,

Surge Protection

Surge

Notes:

1. Pulsed, 50 ms maximum non-repetitive.

2. Measured using 2S2P JEDEC std. PCB.

Recommended Operating Conditions

The Recommended Operating Conditions table defines the conditions for actual device operation. Recommended

operating conditions are specified to ensure optimal performance to the datasheet specifications. Fairchild does not

recommend exceeding them or designing to Absolute Maximum Ratings.

Symbol

Parameter

Min.

Max.

Unit

V_BUS

V_IF

Supply Voltage, V_BUS

Supply Voltage, V_IF

2.5

3.1

23.0

5.5

C_IN/ C_OUTInput and Output Capacitance

C_{VBUS_DET}Output Capacitance

0.1

μF

°C

0.47

-40

T_A

Operating Temperature

+85

www.fairchildsemi.com

FPF2488 • Rev. 1.6

Electrical Characteristics

Unless otherwise noted, V_BUS=2.5 to 23 V, V_IF=3.1 to 5.5 V, T_A=-40 to 85°C; Typical values are at V_BUS=5 V, I_IN≤ 2 A,

V_IF=4 V, C_IN=0.1 μF and T_A=25°C.

Symbol

Parameter

Conditions

Min. Typ. Max. Unit

Basic Operation

V_BUS=5 V, ONB=0 V, V_{BUS_DET}=Floating

V_IF=4 V

μA

°C

160

100

150

100

140

250

150

205

180

I_Q

Input Quiescent Current

V_BUS=12 V, V_OUT=0 V, V_{BUS_DET}=Floating

V_IF=5.5 V, BAT=0 V

I_{IN_Q}

OVLO Supply Current

Thermal Shutdown⁽³⁾

T_SDN

Thermal Shutdown

Hysteresis⁽³⁾

T_{SDN_HYS}

°C

V_BUSto VOUT Switch

V_{BUS_CLAMP}Input Clamping Voltage

I_IN=10 mA

V_BUSRising, T_A=-40 to 85°C

V_BUSFalling, T_A=-40 to 85°C

V_BUS=5 V, I_OUT=1 A, T_A=25°C

V_BUS=9 V, I_OUT=1 A, T_A=25°C

9.9

9.8

10.0

10.1

V_{BUS_OVLO}

Over-Voltage Trip Level

mΩ

R_{ON_VBUS}

t_{DEB_VBUS}

On-Resistance

Debounce Time

Time from V_{BUS_MIN}< V_BUS< V_{BUS_OVLO}to

V_OUT=0.1 × V_BUS

Time from V_BUS=V_{BUS_MIN}to 0.1 × V_{BUS_DET}

t_{START_VBUS}Soft-Start Time

R_L=100 Ω, C_L=22 µF, V_OUTfrom 0.1 × V_BUS

to 0.9 × V_BUS

t_{ON_VBUS}

Switch Turn-On Time

Switch Turn-Off Time

R_L=100 Ω, No C_L, V_BUS> V_{BUS_OVLO}to

V_OUT=0.8 × V_BUS

t_{OFF_VBUS}

150

V_IFto BAT Switch

V_{IF_CLAMP}Input Clamping Voltage

I_IN=10 mA

6.4

2.85

2.7

V_IFRising, T_A=-40 to 85°C

V_IFFalling, T_A=-40 to 85°C

V_IFRising, T_A=-40 to 85°C

V_IFFalling, T_A=-40 to 85°C

V_IF=3.1 V, I_OUT=1 A, T_A=25°C

V_IF=0 V, BAT=4.4 V

3.05

5.50

V_{IF_UVLO}

Under-Voltage Trip Level

Over-Voltage Trip Level

5.00

4.8

5.25

V_{IF_OVLO}

R_{ON_VIF}

I_RCB

On-Resistance

mΩ

μA

Reverse Current

Time from V_{IF_UVLO}< V_IF< V_{IF_OVLO}to

BAT=0.1 × V_IF

t_{DEB_VIF}

t_{QUAL_VIF}

t_{ON_VIF}

Debounce Time

BAT > V_{IH_BAT}First, Time from ON >

V_{IH_ON(B)}to BAT Voltage Increase

Qualification Time

Switch Turn-On Time

Switch Turn-Off Time

R_L=100 Ω, C_L=22 µF, V_OUTfrom 0.1 × VIF to

0.9 × VIF

R_L=100 Ω, No C_L,V_IN> V_OVLOto V_OUT=0.8 ×

VIF

t_{OFF_VIF}

150

Note:

3. Guaranteed by characterization and design.

Continued on the following page…

www.fairchildsemi.com

FPF2488 • Rev. 1.6

Electrical Characteristics

Unless otherwise noted, V_BUS=2.5 to 23 V, V_IF=3.1 to 5.5 V, T_A=-40 to 85°C; Typical values are at V_BUS=5 V, I_IN≤ 2 A,

V_IF=4 V, C_IN=0.1 μF and T_A=25°C.

Symbol

V_{BUS_DET}

Parameter

Conditions

Min. Typ. Max. Unit

V_BUS=6.5 V, I_{BUS_DET}=0 mA, T_A=25°C

V_BUS=15 V, I_{BUS_DET}=0 mA, T_A=25°C

V_BUS=6.5 V, I_{BUS_DET}=1 mA, T_A=25°C

V_BUS=15 V, I_{BUS_DET}=1 mA, T_A=25°C

6.0

6.5

7.9

6.5

7.9

7.0

6.3

7.0

V_{BUS_DET}

V_{BUS_DET}Output Voltage

Digital Signals

V_{IH_ON(B)}

Enable HIGH Voltage

V_BUS, V_IFOperating Range

BAT Rising

1.2

2.6

V_{IL_ON(B)}

Enable LOW Voltage

0.5

V_{IH_BAT}

BAT Presence HIGH Voltage

BAT Presence Low Voltage

V_{IL_BAT}

BAT Falling

1.7

I_{VBUS_DET_LEAK}V_{BUS_DET}Leakage Current

O_{NB_Leak}ONB Leakage Current

V_{VBUS_DET}=5 V, V_BUS=0 V

V_BUS=5 V, V_OUT=Float

µA

www.fairchildsemi.com

FPF2488 • Rev. 1.6

Timing Diagrams

VBUS

t_{DEB_VBUS}

t_{OFF_VBUS}

Measure @

80% ONB to

V_OUT= 0.8*V_BUS

VOUT

t_{ON_VBUS}

Measure

@ 10/90%

ONB

t_{START_VBUS}

Measure V_BUS> V_{BUS_MIN}

to 0.1*V_{BUS_DET}

VBUS_DET

Figure 5.

Timing for V_BUSPower Up/Down and Normal Operation

t_{START_VBUS}

V_OVLO

VBUS

t_{OFF_VBUS}

Measure @

OVLO_Rising to

V_OUT= 0.8*V_IN

VOUT

VBUS_DET

Figure 6.

Timing for V_BUSOVLO Operation (ONB=LOW)

VBUS > OVLO

OVLO

VBUS < OVLO

VBUS

VBUS_Min

t_{START_VBUS}

Measure VBUS_Min to

0.1*VBUS_DET

VBUS_DET

Figure 7.

Always ON V_{BUS_DET}Operation (ONB=HIGH)

www.fairchildsemi.com

FPF2488 • Rev. 1.6

Timing Diagrams (Continued)

VIF

t_{DEB_VIF}

t_{OFF_VIF}

Measure @

UVLO_Falling to

VOUT = 0.8*VIF

BAT

t_{ON_VIF}

Measure

@ 10/90%

Figure 8.

Timing for V_IFPower Up/Down and Normal Operation (ON=Don’t Care)

VIF (>BAT)

BAT (> VIH_BAT)

t_{QUAL_VIF}

Figure 9.

Timing for V_IFPower Up/Down and Normal Operation with ON Pin

V_OVLO

VIF

t_{OFF_VIF}

Measure @

OVLO_Rising

BAT = 0.8*VIF

t_{DEB_VIF}

BAT

Figure 10. Timing for V_IFOVLO Operation (ON=Don’t Care)

www.fairchildsemi.com

FPF2488 • Rev. 1.6

V_IFTurn-On Qualification State Diagram

Figure 11. V_IFTurn-On Qualification State Diagram

Notes:

4. Case #1 is reflecting removable battery system without ON signal.

5. Case #2 is reflecting embedded battery system with ON signal.

Product-Specific Dimensions

2200 μm ±30 μm

1600 μm ±30 μm

400 μm ±18 μm

300 μm ±18 μm

www.fairchildsemi.com

FPF2488 • Rev. 1.6

ON Semiconductor and

are trademarks of Semiconductor Components Industries, LLC dba ON Semiconductor or its subsidiaries in the United States and/or other countries.

ON Semiconductor owns the rights to a number of patents, trademarks, copyrights, trade secrets, and other intellectual property. A listing of ON Semiconductor’s product/patent

coverage may be accessed at www.onsemi.com/site/pdf/Patent−Marking.pdf. ON Semiconductor reserves the right to make changes without further notice to any products herein.

ON Semiconductor makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does ON Semiconductor assume any liability

arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequential or incidental damages.

Buyer is responsible for its products and applications using ON Semiconductor products, including compliance with all laws, regulations and safety requirements or standards,

regardless of any support or applications information provided by ON Semiconductor. “Typical” parameters which may be provided in ON Semiconductor data sheets and/or

specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including “Typicals” must be validated for each customer

application by customer’s technical experts. ON Semiconductor does not convey any license under its patent rights nor the rights of others. ON Semiconductor products are not

designed, intended, or authorized for use as a critical component in life support systems or any FDA Class 3 medical devices or medical devices with a same or similar classification

in a foreign jurisdiction or any devices intended for implantation in the human body. Should Buyer purchase or use ON Semiconductor products for any such unintended or unauthorized

application, Buyer shall indemnify and hold ON Semiconductor and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and

expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such

claim alleges that ON Semiconductor was negligent regarding the design or manufacture of the part. ON Semiconductor is an Equal Opportunity/Affirmative Action Employer. This

literature is subject to all applicable copyright laws and is not for resale in any manner.

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FPF2488UCX [ONSEMI]

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