AAT3125ISN-T1 データシートの表示（PDF） - Analog Technology Inc
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AAT3125ISN-T1 Datasheet PDF : 10 Pages
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AAT3125
USB OTG 5V Charge Pump
Pin Descriptions
Pin # Symbol
1
POK1
2
POK2
3 SESDET
4
SRRDY
5
OUT
6
C1+
7
C1-
8
NC
9
OUTCP
10
C2+
11
C2-
12
GND
13
NC
14
VIN
15
SR
16
EN
EP
Function
Power OK 1. Open drain output with 4.0V voltage detector. When the OUT pin rises above the
detected voltage (4.0V), POK1 will transition from low to high state. Similarly, when the output falls
below 4.0 volts, POK1 will transition from high to low. A 10kΩ pull-up resistor is recommended.
Power OK 2. Open drain output with 4.4V voltage detector. When the OUT pin rises above the
detected voltage (4.4V), POK2 will transition from low to high state. Similarly, when the output falls
below 4.4 volts, POK2 will transition from high to low. A 10kΩ pull-up resistor is recommended.
Session detect. Open drain output with 2.0V voltage detector. When the OUT pin rises above the
detected voltage (2.0V), it will transition from low to high state. Similarly, when the output falls below
2.0 volts, SESDET will transition from high to low. A 10kΩ pull-up resistor is recommended.
Session request ready. Open drain output with 0.6V voltage detector. When the OUT pin rises above
the detected voltage (0.6V), it will transition from low to high state. Similarly, when the output falls
below 0.6 volts, SRRDY will transition from high to low. A 10kΩ pull-up resistor is recommended.
Power output to VBUS.
Flying capacitor 1 + terminal.
Flying capacitor 1 - terminal.
No connect.
Charge pump output. Requires 1µF bypass capacitor to ground.
Flying capacitor 2 + terminal.
Flying capacitor 2 - terminal.
Ground.
No connect.
Input power supply. Requires 1µF bypass capacitor to ground.
Session request input control pin. Should not be left floating. Must connect to high or low. For more
details, see Table 1.
Enable input control pin. When in the low state, the AAT3125 is powered down and consumes a
small amount of power. When connected high, it is in normal operation. This pin should not be left
floating. For more details, see Table 1.
Exposed paddle (bottom); connect to GND directly beneath package.
Pin Configuration
QFN44-16
(Top View)
POK1 1
POK2 2
SESDET 3
SRRDY 4
12 GND
11 C2-
10 C2+
9 OUTCP
2
3125.2005.1.1.3
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