ISL54226_10 Datasheet, PDF (2/18 Pages) Intersil Corporation – High-Speed USB 2.0 (480Mbps) DPST Switch with Overvoltage Protection (OVP) and Dedicated Charger Port Detection

Pin Configurations
ISL54226
(8 LD 1.2x1.4 µTQFN)
TOP VIEW
ISL54226
ISL54226
(8 LD 2x2 TDFN)
TOP VIEW
OVP
D- 1
D+
LOGIC
4MΩ
PD
INT 1
D+ 2
COM+ ₃
GND 4
LOGIC
4MΩ
OVP
8 VDD
7 OE/ALM
6 D-
5 _COM-
NOTE:
1. Switches Shown for OE/ALM = Logic “0”.
Pin Descriptions
PIN
µTQFN TDFN NAME
DESCRIPTION
4
1
INT Charger Mode Interrupt Output
5
2
D+ USB Data Port
6
3 COM+ USB Data Port
7
4
GND Ground Connection
8
5
COM- USB Data Port
1
6
D- USB Data Port
2
7 OE/ALM Switch Enable/Alarm (Open Drain)
Drive Low to Open Switches
Outputs a Low when OTV is
Activated
3
8
VDD Power Supply
-
PD
PD Thermal Pad. Tie to Ground or
Float
Truth Table
INPUT
OUTPUT
SIGNAL AT
D-,
COM PINS OE/ALM D+ INT OE/ALM STATE
0V to 3.6V
0
OFF High Low Normal
0V to 3.6V
1
ON High High Normal
Overvoltage
0
OFF High Low
OVP
Range
Overvoltage
1
OFF High Low
OVP
Range
COM Pins Tied
0
Together
OFF Low
Low
Charger
Port
(CP)
COM Pins Tied
1
Together
ON High High Normal
Logic “0” when ≤0.5V, Logic “1” when ≥1.4V with a 2.7V to
3.6V Supply.
CODEC SUPPLY
2.7V to 3.3V
2.7V to 3.3V
TABLE 1. OVP TRIP POINT VOLTAGE
SYSTEM VOLTAGE CONDITIONS
SWITCH SUPPLY (V_DD)
2.7V to 5.25V
COMs SHORTED TO
VBUS
PROTECTED
Yes
2.7V to 5.25V
-5V
Yes
TRIP POINT
MIN
MAX
3.62V
3.95V
-0.6V
-0.29V
2
FN7614.0
July 29, 2010