Diodes AP2805 User Manual

500mA High-side Power Distribution Switch with Enable and Flag AP2805

Data Sheet

General Description

The AP2805 is an integrated high-side power switch that consists of N-Channel MOSFET, charge pump, over current & temperature and other related protection circuits. The switch’s low RDS (ON), 60mΩ, design easily to meet USB voltage drop requirements. It includes soft-start to limit inrush current, over-current protection, load short protection with fold-back, and thermal shutdown to avoid switch failure during hot plug-in. Under voltage lockout (UVLO) function is used to ensure the device remain off unless there is a valid input voltage present. A Flag output is available to indicate fault conditions to the local USB controller.

The AP2805 is available in standard packages of SOIC-8 and MSOP-8.

SOIC-8 MSOP-8

Figure 1. Package Types of AP2805

Features

Low MOSFET on Resistance:

•

60mΩ@V

• Compliant to USB Specifications

Operating Voltage Range: 2.7V to 5.5V

•

Low Supply Current: 60µA (Typ.)

•

Low Shutdown Current: 1.0µA (Max)

•

Guarantee 0.5A Continuous Load

•

Current Limit: 0.7A (Min), 1.4A (Max)

•

Under-voltage Lockout

•

Logic Level Enable Pin: Available in

•

Active-high or Active-low Version Over-current Protection

•

• Over Temperature Protection

• Load Short Protection with Fold-back

• No Reverse Current When Power Off

• Deglitched Flag Output with Open Drain

• With Output Shutdown Pull-low Resistor for

A/C Versions

• UL Approved (File No. E339337)

• Nemko CB Scheme IEC60950-1, Ref. Certif

No. NO67288

=5.0V

IN

Applications

• USB Power Management

USB Bus/Self Powered Hubs

•

• Hot-plug Power Supplies

• Battery-charger Circuits

• Notebooks, Motherboard PCs

Aug. 2012 Rev 1. 0 BCD Semiconductor Manufacturing Limited

1

Data Sheet

500mA High-side Power Distribution Switch with Enable and Flag AP2805

Pin Configuration

M/MM Package

（SOIC-8/MSOP-8）

Figure 2. Pin Configuration of AP2805 (Top View)

Pin Descriptions

Pin Number Pin Name Function

1 GND Ground

2, 3 VIN Supply input pin

4

5

6, 7, 8 VOUT Switch output voltage

Chip enable control input, active low or high

Fault flag pin, output with open drain, need a pull-up resistor in application, active low to indicate OCP or OTP

Aug. 2012 Rev 1. 0 BCD Semiconductor Manufacturing Limited

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Data Sheet

500mA High-side Power Distribution Switch with Enable and Flag AP2805

Functional Block Diagram

Figure 3. Functional Block Diagram of AP2805

Aug. 2012 Rev 1. 0 BCD Semiconductor Manufacturing Limited

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Data Sheet

500mA High-side Power Distribution Switch with Enable and Flag AP2805

Ordering Information

AP2805 -

Circuit Type

Condition A: Active High with Auto Discharge B: Active High without Auto Discharge C: Active Low with Auto Discharge D: Active Low without Auto Discharge

Product Package Condition

SOIC-8

AP2805A

MSOP-8

SOIC-8

AP2805B

MSOP-8

SOIC-8

AP2805C

MSOP-8

SOIC-8

AP2805D

MSOP-8

Active High

with Auto Discharge

Active High

without Auto Discharge

Active Low

with Auto Discharge

Active Low

without Auto Discharge

Temperature

Range

-40 to 85°C

BCD Semiconductor's Pb-free products, as designated with "G1" suffix in the part number, are RoHS compliant

and Green.

Part Number Marking ID Green Green

AP2805AM-G1 2805AM-G1 Tube

AP2805AMTR-G1 2805AM-G1 Tape & Reel

AP2805AMM-G1 2805AMM-G1 Tube

AP2805AMMTR-G1 2805AMM-G1 Tape & Reel

AP2805BM-G1 2805BM-G1 Tube

AP2805BMTR-G1 2805BM-G1 Tape & Reel

AP2805BMM-G1 2805BMM-G1 Tube

AP2805BMMTR-G1 2805BMM-G1 Tape & Reel

AP2805CM-G1 2805CM-G1 Tube

AP2805CMTR-G1 2805CM-G1 Tape & Reel

AP2805CMM-G1 2805CMM-G1 Tube

AP2805CMMTR-G1 2805CMM-G1 Tape & Reel

AP2805DM-G1 2805DM-G1 Tube

AP2805DMTR-G1 2805DM-G1 Tape & Reel

AP2805DMM-G1 2805DMM-G1 Tube

AP2805DMMTR-G1 2805DMM-G1 Tape & Reel

G1: Green

TR: Tape & Reel Blank: Tube

Package M: SOIC-8 MM: MSOP-8

Packing

Type

Aug. 2012 Rev 1. 0 BCD Semiconductor Manufacturing Limited

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Data Sheet

500mA High-side Power Distribution Switch with Enable and Flag AP2805

Absolute Maximum Ratings (Note 1)

Parameter Symbol Value Unit

Power Supply Voltage VIN 6.0 V

Operating Junction Temperature Range

Storage Temperature Range T

Lead Temperature (Soldering,10 sec) T

Thermal Resistance (Junction to Ambient)

150 ºC

T

J

-65 to 150 ºC

STG

260 ºC

LEAD

θ

JA

SOIC-8 135

MSOP-8 150

o

C/W

ESD (Machine Model)

ESD (Human Body Model) 2000 V

200 V

Note 1: Stresses greater than those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under “Recommended Operating Conditions” is not implied. Exposure to “Absolute Maximum Ratings” for extended periods may affect device reliability.

Recommended Operating Conditions

Parameter Symbol Min Max Unit

Supply Voltage VIN 2.7 5.5 V

Operating Ambient Temperature Range

Aug. 2012 Rev 1. 0 BCD Semiconductor Manufacturing Limited

-40 85 °C

T

A

5