AIC1527
器件描述：Quad USB High-Side Power Switch
器件厂商：AIC [Analog Intergrations Corporation]
文件大小：158.11KB，共8页
Sponsor by e络盟器件资料摘要：
AIC1527
Quad USB High-Side Power Switch
Analog Integrations Corporation 4F, 9, Industry E. 9th Rd, Science Based Industrial Park, Hsinchu Taiwan, ROC www.analog.com.tw
DS-1527-00 May 31, 00 TEL: 886-3-5772500 FAX: 886-3-5772510 1
n FEATURES
• 110mΩ (5V Input) High-Side MOSFET Switch.
l 500mA Continuous Load Current per Channel.
l 220µA Typical On-State Supply Current.
l 1µA Typical Off-State Supply Current.
l Current-Limit / Short Circuit Protection.
l Thermal Shutdown Protection under Overcurrent
Condition.
l Undervoltage Lockout Ensures that Switch is off at
Start Up.
l Output can be Forced Higher than Input (Off-State).
l Open-Drain Fault Flag.
l Slow Turn ON and Fast Turn OFF.
l Enable Active-High or Active-Low.
n APPLICATIONS
• USB Power Management.
l Hot Plug-In Power Supplies.
l Battery-Charger Circuit.
n DESCRIPTION
The AIC1527 is a quad high-side power switch for
self-powered and bus-powered Universal Serial
Bus (USB) applications. One high-side switch is a
MOSFET with 110mΩ RDS(ON), which meets USB
voltage drop requirements for maximum
transmission wire length.
Multi-purpose open-drain fault flag output
indicates over-current limiting, thermal shutdown,
or undervoltage lockout for each channel. Output
current is typically limited to 1A, well below the 5A
safety requirement, and the thermal shutdown
function independently controls each channel
under overcurrent condition.
Guaranteed minimum output rise time limits
inrush current during hot plug-in, minimizing EMI
and preventing the voltage at upstream port from
dropping excessively.
n TYPICAL APPLICATION CIRCUIT
4.50V to 5.25VUpstream VBUS
100mA max
DATA
33µ F
5.0V
VCC
AIC 1722
OUTIN
GND
+1µF
CIN 10µFC
OUT
+
* 33µF, 16V Tantalum, or
100µF, 10V Electrolytic
Bold line indicate high- current traces
10K
10K
10K
10K
AII C1527
GND
ON/OFF
OVERCURRENT
OVERCURRENT
ON/OFF
OVERCURRENT
OVERCURRENT
ON/OFF
ON/OFF
USB Con troller
VIN
0.1µF
BeadFerrite
+
DATA
D+
D-
GND
VBUS
0 .01µF33
µF
*
+
DATA
D+
D-
GND
VBUS
0.01 µF33
µ F
*
+
DATA
D+
D-
GND
VBUS
0.01 µF33
µF
*
+
DATA
D+
D-
GND
VBUS
0. 01µF33
µF
*
OUTA
GND1
IN(A/B)
OUTB
CTLB
FLGB
FLGA
CTLA
OUTA
GND1
IN(A/B)
OUTB
CTLB
FLGB
FLGA
CTLAD+
D-
GND
VBUS
0.1µF
+
4-Port Self-Powered Hub
Quad USB High-Side Power Switch
Analog Integrations Corporation 4F, 9, Industry E. 9th Rd, Science Based Industrial Park, Hsinchu Taiwan, ROC www.analog.com.tw
DS-1527-00 May 31, 00 TEL: 886-3-5772500 FAX: 886-3-5772510 1
n FEATURES
• 110mΩ (5V Input) High-Side MOSFET Switch.
l 500mA Continuous Load Current per Channel.
l 220µA Typical On-State Supply Current.
l 1µA Typical Off-State Supply Current.
l Current-Limit / Short Circuit Protection.
l Thermal Shutdown Protection under Overcurrent
Condition.
l Undervoltage Lockout Ensures that Switch is off at
Start Up.
l Output can be Forced Higher than Input (Off-State).
l Open-Drain Fault Flag.
l Slow Turn ON and Fast Turn OFF.
l Enable Active-High or Active-Low.
n APPLICATIONS
• USB Power Management.
l Hot Plug-In Power Supplies.
l Battery-Charger Circuit.
n DESCRIPTION
The AIC1527 is a quad high-side power switch for
self-powered and bus-powered Universal Serial
Bus (USB) applications. One high-side switch is a
MOSFET with 110mΩ RDS(ON), which meets USB
voltage drop requirements for maximum
transmission wire length.
Multi-purpose open-drain fault flag output
indicates over-current limiting, thermal shutdown,
or undervoltage lockout for each channel. Output
current is typically limited to 1A, well below the 5A
safety requirement, and the thermal shutdown
function independently controls each channel
under overcurrent condition.
Guaranteed minimum output rise time limits
inrush current during hot plug-in, minimizing EMI
and preventing the voltage at upstream port from
dropping excessively.
n TYPICAL APPLICATION CIRCUIT
4.50V to 5.25VUpstream VBUS
100mA max
DATA
33µ F
5.0V
VCC
AIC 1722
OUTIN
GND
+1µF
CIN 10µFC
OUT
+
* 33µF, 16V Tantalum, or
100µF, 10V Electrolytic
Bold line indicate high- current traces
10K
10K
10K
10K
AII C1527
GND
ON/OFF
OVERCURRENT
OVERCURRENT
ON/OFF
OVERCURRENT
OVERCURRENT
ON/OFF
ON/OFF
USB Con troller
VIN
0.1µF
BeadFerrite
+
DATA
D+
D-
GND
VBUS
0 .01µF33
µF
*
+
DATA
D+
D-
GND
VBUS
0.01 µF33
µ F
*
+
DATA
D+
D-
GND
VBUS
0.01 µF33
µF
*
+
DATA
D+
D-
GND
VBUS
0. 01µF33
µF
*
OUTA
GND1
IN(A/B)
OUTB
CTLB
FLGB
FLGA
CTLA
OUTA
GND1
IN(A/B)
OUTB
CTLB
FLGB
FLGA
CTLAD+
D-
GND
VBUS
0.1µF
+
4-Port Self-Powered Hub