Logic diagram AS21P2THB
4/23 DocID026023 Rev 1
2 Logic diagram
Figure 2. Logic block diagram
Figure 3. Logic equivalent circuit
Table 3. Truth table
SEL Switch nS1 Switch nS2
HONOFF
(1)
1. High impedance.
LOFF
(1)
ON
'
'
6
6
6
6
6(/
'Q
6(/
Q6
Q6
$09
DocID026023 Rev 1 5/23
AS21P2THB Dedicated port charging detection
23
3 Dedicated port charging detection
The AS21P2THB has a built-in dedicated port charging detection circuit to detect the
condition when the USB D+/D- lines are both in high state. When this occurs, the device
sends an interrupt signal to the processor to indicate that the connected USB device is in
dedicated port charging mode.
Figure 4. Interrupt function logic representation
D1
D2
1S1
1S2
2S1
2S2
SEL
INT
Maximum rating AS21P2THB
6/23 DocID026023 Rev 1
4 Maximum rating
Stressing the device above the rating listed in the “Absolute maximum ratings” table may
cause permanent damage to the device. These are stress ratings only and operation of the
device at these or any other conditions above those indicated in the operating sections of
this specification is not implied. Exposure to absolute maximum rating conditions for
extended periods may affect device reliability.
1. Derate above 70 °C by 18.5 mW/°C.
4.1 Recommended operating conditions
Table 4. Absolute maximum ratings
Symbol Parameter Value Unit
V
CC
Supply voltage -0.5 to 5.5 V
V
I
DC input voltage -0.5 to V
CC
+ 0.5 V
V
IC
DC control input voltage -0.5 to 5.5 V
V
O
DC output voltage -0.5 to V
CC
+ 0.5 V
I
IKC
DC input diode current on control pin (V
SEL
< 0V) -50 mA
I
IK
DC input diode current (V
SEL
< 0V) ±50 mA
I
OK
DC output diode current ±20 mA
I
O
DC output current ±128 mA
I
OP
DC output current peak (pulse at 1ms, 10% duty cycle) ±300 mA
I
CC
or I
GND
DC V
CC
or ground current ±100 mA
P
D
Power dissipation at T
A
= 70 °C
(1)
1120 mW
T
stg
Storage temperature -65 to +150 °C
T
L
Lead temperature (10 sec) 300 °C
Table 5. Recommended operating conditions
Symbol Parameter Value Unit
V
CC
Supply voltage 1.65 to 4.3 V
V
I
Input voltage 0 to V
CC
V
V
IC
Control input voltage 0 to 4.3 V
V
O
Output voltage 0 to V
CC
V
T
op
Operating temperature -40 to 85 °C
dt/dv
Input rise and fall time control
input
V
L
= 1.65 V to 2.7 V 0 to 20
ns/V
V
L
= 3.0 to 4.3 V 0 to 10

AS21P2THBQ

Mfr. #:
Manufacturer:
STMicroelectronics
Description:
Analog Switch ICs ANALOG
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
T/T Paypal Visa MoneyGram Western Union

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