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Preliminary Datasheet

0.5A to 2.0A High-side Power Distribution Switches AP2822

Dec. 2012 Rev 1. 1 BCD Semiconductor Manufacturing Limited

General Description

The AP2822 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 R

DS(ON)

, 85mΩ, is designed

to meet USB voltage drop requirements. The IC

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 AP2822 is available in the standard package of

SOT-23-5.

Applications

• USB Power Management

•

USB Bus/Self Powered Hubs

• Hot-plug Power Supplies

• Battery-charger Circuits

• Notebooks, Motherboard PCs

Features

•

Low MOSFET On Resistance: 85mΩ

• Compliant to USB Specifications

• Available 4 Versions of Continuous Load:

0.5A/1.0A/1.5A/2.0A

• Logic Level Enable Pin: Available with

Active-high or Active-low Version

• Operating Voltage Range: 2.7V to 5.5V

• Low Supply Current: 68µA (Typ.)

• Low Shutdown Current: 1.0µA (Max)

• Under-voltage Lockout

• Soft Start-up

• 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

Figure 1. Package Type of AP2822

SOT-23-5

Summary of content (19 pages)

PAGE 1
Preliminary Datasheet 0.5A to 2.0A High-side Power Distribution Switches General Description Features The AP2822 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), 85mΩ, is designed to meet USB voltage drop requirements.
PAGE 2
Preliminary Datasheet 0.5A to 2.0A High-side Power Distribution Switches AP2822 Pin Configuration K/KA/KB/KE Package （SOT-23-5） K FLAG 1 GND 2 EN 3 KA 5 4 VOUT VIN EN 1 GND 2 FLAG 3 KB VOUT 1 GND 2 VIN 3 5 VOUT 4 VIN 5 VIN 4 EN KE 5 4 VOUT EN VOUT 1 GND 2 FLAG 3 Figure 2. Pin Configuration of AP2822 (Top View) Dec. 2012 Rev 1.
PAGE 3
Preliminary Datasheet 0.5A to 2.0A High-side Power Distribution Switches AP2822 Pin Descriptions Pin Number 1(K) 3(KA/KE) 2 Pin Name Function FLAG Fault flag pin, output with open drain, need a pull-up resistor in application, active low to indicate OCP or OTP GND Ground 3(K) 1(KA) EN Chip enable control input, active low or high VIN Supply input pin 4(KB/KE) 4(K/KA) 3(KB) 5(KE) 5(K/KA) 1,5(KB) VOUT Switch output voltage 1(KE) Dec. 2012 Rev 1.
PAGE 4
Preliminary Datasheet 0.5A to 2.0A High-side Power Distribution Switches AP2822 Functional Block Diagram VIN 3(1){4}[4] EN 4(4){3}[5] Clock Gate Control Band Gap Reference Over Current Limiting CMP Current Sense 5(5){1,5}[1] VOUT Shutdown Signal 1(3)[3] UVLO GND FLAG FLAG Deglitch Logic Thermal Sense 2(2){2}[2] A(B){C}[D] A: SOT-23-5(K Package) B: SOT-23-5(KA Package) C: SOT-23-5(KB Package) D: SOT-23-5(KE Package) Figure 3. Functional Block Diagram of AP2822 Dec. 2012 Rev 1.
PAGE 5
Preliminary Datasheet 0.5A to 2.0A High-side Power Distribution Switches AP2822 Ordering Information AP2822 - Circuit Type G1: Green TR: Tape & Reel Condition A: Active High (Continuous 0.5A) B: Active Low (Continuous 0.5A) C: Active High (Continuous 1.0A) D: Active Low (Continuous 1.0A) E: Active High (Continuous 1.5A) F: Active Low (Continuous 1.5A) G: Active High (Continuous 2.0A) H: Active Low (Continuous 2.0A) Package SOT-23-5 Dec.
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Preliminary Datasheet 0.5A to 2.0A High-side Power Distribution Switches AP2822 Ordering Information (Continued) Package SOT-23-5 SOT-23-5 Dec. 2012 Temperature Range -40 to 85°C -40 to 85°C Condition Active High (Continuous 0.5A) Active Low (Continuous 0.5A) Active High (Continuous 1.0A) Active Low (Continuous 1.0A) Active High (Continuous 1.5A) Active Low (Continuous 1.5A) Active High (Continuous 2.0A) Active Low (Continuous 2.0A) Active High (Continuous 0.5A) Active Low (Continuous 0.
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Preliminary Datasheet 0.5A to 2.0A High-side Power Distribution Switches AP2822 Ordering Information (Continued) Package SOT-23-5 Temperature Range Condition -40 to 85°C Active High (Continuous 0.5A) Active Low (Continuous 0.5A) Active High (Continuous 1.0A) Active Low (Continuous 1.0A) Active High (Continuous 1.5A) Active Low (Continuous 1.5A) Active High (Continuous 2.0A) Active Low (Continuous 2.
PAGE 8
Preliminary Datasheet 0.5A to 2.0A High-side Power Distribution Switches AP2822 Absolute Maximum Ratings (Note 1) Parameter Symbol Value Unit VIN 6.
PAGE 9
Preliminary Datasheet 0.5A to 2.0A High-side Power Distribution Switches AP2822 Electrical Characteristics (VIN=5.0V, CIN=2.2µF, COUT=1.0µF, Typical TA=25°C, unless otherwise specified) Parameter Symbol Supply Voltage VIN Switch On Resistance RDS(ON) Current Limit ILIMIT Supply Current ISUPPLY Fold-back Short Current ISHORT Shutdown Supply Current ISHUTDOWN Condition Min Typ Max Unit 2.7 VIN=5.0V, IOUT=2.0A 5.5 V 85 110 mΩ AP2822A/B(0.5A) , VOUT=4.0V 0.7 1.0 1.4 AP2822C/D(1.
PAGE 10
Preliminary Datasheet 0.5A to 2.0A High-side Power Distribution Switches AP2822 Typical Performance Characteristics 100 100 VIN=5V Enable Active No Load 90 80 Supply Current (μA) Supply Current (μA) 80 Enable Active 90 70 60 50 40 30 70 60 O TA=-40 C 50 O TA=25 C 40 O TA=85 C 30 20 20 10 10 0 0 -40.0 -10 -20.0 0.0 20.0 40.0 60.0 80.0 1.0 1.5 2.0 2.5 O Ambient Temperature ( C) Figure 4. Supply Current vs. Ambient Temperature 3.5 4.0 4.5 5.0 5.5 Figure 5.
PAGE 11
Preliminary Datasheet 0.5A to 2.0A High-side Power Distribution Switches AP2822 Typical Performance Characteristics (Continued) 1.4 For AP2822A/B 1.2 1.2 1.0 1.0 Current Limit (A) Current Limit (A) 1.4 0.8 O TA= -40 C 0.6 O TA= 25 C 0.4 O TA= 85 C 0.2 For AP2822A/B 0.8 VIN=5.0V VIN=3.3V 0.6 0.4 0.2 0.0 3.0 3.5 4.0 4.5 5.0 0.0 -40 5.5 -20 Supply Voltage (V) 0 20 40 60 80 O Ambient Temperature ( C) Figure 8. Current Limit vs. Supply Voltage Figure 9. Current Limit vs.
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Preliminary Datasheet 0.5A to 2.0A High-side Power Distribution Switches AP2822 Typical Performance Characteristics (Continued) 3.0 3.0 For AP2822E/F 2.6 2.6 2.4 2.4 2.2 2.0 O TA=-40 C 1.8 O TA=25 C O TA=85 C 1.6 For AP2822E/F 2.8 Current Limit (A) Current Limit (A) 2.8 2.2 2.0 VIN=5.0V VIN=3.3V 1.8 1.6 1.4 1.4 1.2 3.0 3.5 4.0 4.5 5.0 1.2 -40 5.5 -20 Supply Voltage (V) 20 40 60 80 O Figure 12. Current Limit vs. Supply Voltage Figure 13. Current Limit vs.
PAGE 13
Preliminary Datasheet 0.5A to 2.0A High-side Power Distribution Switches AP2822 15 2.70 Enable Active 2.65 Flag Delay Time during Over Current (ms) Under Voltage Lockout Threshold Voltage (V) Typical Performance Characteristics (Continued) 2.60 2.55 VIN Rising VIN Falling 2.50 2.45 2.40 2.35 2.30 2.25 2.20 -40.0 -20.0 0.0 20.0 40.0 60.0 80.0 VIN=5V Enable Active 14 13 12 11 10 9 8 7 6 5 -40.0 -20.0 0.0 40.0 60.0 80.0 Ambient Temperature ( C) Ambient Temperature ( C) Figure 16.
PAGE 14
Preliminary Datasheet 0.5A to 2.0A High-side Power Distribution Switches AP2822 Typical Performance Characteristics (Continued) 1.6 VIN=5V VIN=5V Enable Active 1.5 1.4 Enable Threshold Voltage (V) Output Short to GND Current (A) 1.5 1.3 1.2 1.1 1.4 VENH VENL 1.3 1.2 1.1 For AP2822 E/F/G/H 1.0 -40.0 -20.0 0.0 20.0 40.0 60.0 1.0 -40.0 80.0 -20.0 0.0 20.0 40.0 60.0 80.0 O O Ambient Temperature ( C) Ambient Temperature ( C) Figure 20. Output Short to GND Current vs.
PAGE 15
Preliminary Datasheet 0.5A to 2.0A High-side Power Distribution Switches AP2822 Typical Performance Characteristics (Continued) VEN 5V/div VEN 5V/div IINRUSH 1A/div IINRUSH 1A/div VOUT 1V/div VOUT 1V/div Time 500μs/div Time 500μs/div Figure 24. Output Turn On and Rise Time (CIN=1.0μF, COUT=1.0μF, RL=3.3Ω) Figure 25. Output Turn On and Rise Time (CIN=1.
PAGE 16
Preliminary Datasheet 0.5A to 2.0A High-side Power Distribution Switches AP2822 Typical Performance Characteristics (Continued) VFLAG 1V/div VEN 5V/div IOUT 1A/div IOUT 1A/div VOUT 1V/div VOUT 1V/div Time 5ms/div Time 20ms/div Figure 28. Output Short to GND Current (VIN=5V, CIN=1.0μF) Figure 29. FLAG Response during Over Current VFLAG 1V/div IOUT 1A/div VOUT 1V/div Time 5ms/div Figure 30. FLAG Response during Over Temperature (TA=125 ºC) Dec. 2012 Rev 1.
PAGE 17
Preliminary Datasheet 0.5A to 2.0A High-side Power Distribution Switches AP2822 Typical Application R 10kΩ VIN =5V 4(4){3}[5] VIN C IN (Note2) 2.2µF 1(3)[3] USB Controller AP2822 3(1){4}[4] Enable FLAG EN VOUT GND 5(5){1,5}[1] COUT 1µF 2(2){2}[2] VBUS D+ DGND A(B){C}[D] A: SOT-23-5(K Package) B: SOT-23-5(KA Package) C: SOT-23-5(KB Package) D: SOT-23-5(KE Package) Note 2: 2.2µF input capacitor is enough in most application cases.
PAGE 18
Preliminary Datasheet 0.5A to 2.0A High-side Power Distribution Switches AP2822 Mechanical Dimensions SOT-23-5 Unit: mm(inch) 2.820(0.111) 3.020(0.119) 0.100(0.004) 0.200(0.008) 0.200(0.008) 0.700(0.028) REF 0.950(0.037) TYP 0.300(0.012) 0.400(0.016) 0° 8° 1.800(0.071) 2.000(0.079) 0.000(0.000) 0.150(0.006) 0.900(0.035) 1.300(0.051) Dec. 2012 Rev 1.
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BCD Semiconductor Manufacturing Limited http://www.bcdsemi.com IMPORTANT NOTICE IMPORTANT NOTICE BCD Semiconductor BCD Semiconductor Manufacturing Manufacturing Limited Limited reserves reserves the the right right to to make make changes changes without without further further notice notice to to any any products products or or specifispecifications herein. cations herein.