ISL54225_10 Datasheet, PDF (2/18 Pages) Intersil Corporation – High-Speed USB 2.0 (480Mbps) Multiplexer with Overvoltage Protection (OVP)

Pin Configuration
ISL54225
(10 LD 1.8X1.4 µTQFN)
TOP VIEW
HSD1+ HSD1-
OE 8
7
6
5 D-
VDD 9
SEL 10
4 GND
OVP
3 D+
1
2
HSD2- HSD2+
ISL54225
ISL54225
(10 LD 3X3 TDFN)
TOP VIEW
PD
SEL 1
LOGIC
CONTROL
HSD2- 2
HSD2+ 3
D+ ⁴
GND ⁵
OVP
10 VDD
9 OE
8 HSD1+
7 HSD1-
6 D-
NOTE:
1. Switches Shown for SEL = Logic “1” and OE = Logic “0”.
Pin Descriptions
Truth Table
PIN
µTQFN TDFN NAME
DESCRIPTION
1
2 HSD2- USB Data Port Channel 2
2
3 HSD2+ USB Data Port Channel 2
3
4
D+ USB Data COM Port
4
5
GND Ground Connection
5
6
D- USB Data COM Port
6
7 HSD1- USB Data Port Channel 1
7
8 HSD1+ USB Data Port Channel 1
8
9
OE Bus Switch Enable
9
10
VDD Power Supply
10
1
SEL Select Logic Control Input
-
PD
PD Thermal Pad. Tie to Ground or
Float
HSD1-,
HSD2-,
OE
SEL
HSD1+
HSD2+
STATE
0
0
ON
OFF
Normal
0
1
OFF
ON
Normal
1
0
OFF
OFF
Low Power
1
1
OFF
OFF
Normal
Logic “0” when ≤ 0.5V, Logic “1” when ≥ 1.4V with a 2.7V to
3.6V Supply.
Note: In Low Power mode there is no persistence checking
when in OVP condition.
CODEC SUPPLY
2.7V to 3.3V
2.7V to 3.3V
TABLE 1. USB - OVP POSSIBLE SITUATIONS AND TRIP POINT VOLTAGE
TRIP POINT
SWITCH SUPPLY (V_DD)
2.7V to 5.25V
COMs SHORTED TO
VBUS
PROTECTED
Yes
MIN
3.63V
MAX
3.95V
2.7V to 5.25V
-5V
Yes
-0.76V
-0.29V
2
FN7627.0
July 2, 2010