ISL54227_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

ISL54227
Pin Configurations
ISL54227
(10 LD 1.8X1.4 µTQFN)
TOP VIEW
ALM
D-
7
6
OE 8
VDD 9
INT 10
LOGIC
5 COM-
OVP ₄ GND
3 COM+
4MΩ 4MΩ
1
2
LP
D+
NOTE:
1. Switches Shown for OE = “0”.
ISL54227
(10 LD 3X3 TDFN)
TOP VIEW
PD
INT ₁
LP ₂
D+ ₃
LOGIC
4MΩ
4MΩ
COM+ 4
GND 5
OVP
10 VDD
9 OE
8 ALM
7 D-
6 COM-
Pin Descriptions
PIN
µTQFN TDFN NAME
DESCRIPTION
1
2
LP Low Power Input
2
3
D+ USB Data Port
3
4 COM+ USB Data Port
4
5 GND Ground Connection
5
6 COM- USB Data Port
6
7
D- USB Data Port
7
8 ALM OTV ALARM Interrupt Output
8
9
OE Switch Enable
9
10 VDD Power Supply
10
1
INT Charger Mode Interrupt Output
-
PD PD Thermal Pad. Tie to Ground or
Float
Truth Table
INPUT
OUTPUT
SIGNAL AT
D-,
COM PINS LP OE D+ INT ALM
STATE
0V to 3.6V
0 0 OFF High High
Normal
0V to 3.6V
0 1 ON High High
Normal
0V to 3.6V
1 0 OFF High High Low Power
Overvoltage 0
Range
3.65V to 5.25V
-0.29V to -5V
1 OFF High Low
OVP
COM Pins Tied 0
Together
0 OFF Low High Charger Port
(CP)
COM Pins Tied 1
Together
0 OFF Low High Charger Port
(Low Power)
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 PROTECTED
VBUS
Yes
2.7V to 5.25V
-5V
Yes
TRIP POINT
MIN
MAX
3.62V
3.95V
-0.6V
-0.29V
2
FN7593.0
July 2, 2010