uPI uP7534AM5, uP7534ARA8, uP7534ARU8, uP7534AS8, uP7534BM5 Schematic [ru]

uP7534

A

www.DataSheet.co.kr

Datasheet pdf - http://www.DataSheet4U.net/

Current-Limited, Power Distribution Switches

General Description

The uP7534 is a current limited high-side switch designed
for applications where heavy capacitive loads and short­circuits are likely to be met. This device operates with
inputs from 2.7V to 5.5V for both 3V and 5V systems. Its
low quiescent current (25uA) and standby current (<1uA)
conserve battery power in portable.

The power switch is controlled by a logic enable input and
driven by an internal charge pump circuit. When the output
load exceeds the current-limit threshold or a short is
present, the uP7534 asserts overcurrent protection and
limits the output current to a safe level by driving the power
switch into saturation mode.

The uP7534 features glitch-blank fault flag that is asserted
by overcurrent, overtemperature, or input undervoltage
lockout. The 8ms glitch-blanking time allows momentary
faults to be ignored, thus preventing false alarms to the
host system.

Other features include soft-start to limit inrush current
during plug-in, thermal shutdown to prevent catastrophic
switch failure from high-current loads, under-voltage lockout
(UVLO) to ensure that the device remains off unless there
is a valid input voltage present. The uP7534 is available in
SOP-8 , SOT23-5, MSOP-8, and PMSOP-8 packages.



 Compliant to USB Specifications





 Operating Range: 2.7 V to 5.5 V





 90m





 25uA Typical Quiescent Current





 <1uA Typical Shutdown Current





 Over Current/ Short Circuit Protect





 Thermal Shutdown Protection





 Deglitched Open Drain Fault Flag





 Slow Turn On and Fast Turn Off





 Enable Active-High or Active-Low





 Pb-Free (RoHS Compliant)





 UL Approved-E316940





 TuV EN60960-1 Certification



ΩΩ

Ω (5V Input) High Side MOSFET Switch

ΩΩ

pplications



 Notebook and Desktop PCs





 USB Power Management





 ACPI Power Distribution





 Hot-Plug Power Supplies





 Battery-Powered Equipments





 Battery-Charger Circuits



Features

GND

(uP7534C) EN
(uP7534D) EN#

GND

2

3

SOT23-5 (MA5)

2

3OC#

SOT23-5 (MA5)

GND

VIN

VIN

(uP7534A) EN
(uP7534B) EN#

VOUTOC# 1

5

uP7534C/D

VIN

4

VINVOUT 1

5

uP7534G/H

EN(uP7534G)

4

EN#(uP7534H)

1

2

3

4 5

MSOP-8 (RA8)

GND

uP7534A

2

3VIN

SOT23-5 (M5)

OC#

VOUT

VOUT

GND

8

VOUT

VOUT

7

VOUT

6

OC#

5

VOUTVOUT 1

GND

4

EN

1

2

3

45

SOP-8 (S8)

8

7

6

NC

VIN

VIN

EN (uP7534A)
EN# (uP7534B)

uP7534A/B

5

uP7534B

2

4

3VIN

SOT23-5 (M5)

(uP7534A) EN
(uP7534B) EN#

VOUTVOUT 1

VIN

(uP7534C) EN
(uP7534D) EN#

GND

1

VIN

2

VIN

3

4 5

Pin Configuration

5

uP7534E /F

GND

VIN

VIN

}

PMSOP-8 (RU8)

2

4

3NC

SOT23-5 (MA5)

1

2

3

45

SOP-8 (SA8)

GND

8

uP7534C/D

7

6

8

VOUT

VOUT

7

VOUT

6

OC#

VINVOUT 1

EN(uP7534E)
EN#(uP7534F)

VOUTGND

VOUT

VOUT

OC#

1uPI Semiconductor Corp., http://www.upi-semi.com

Rev. F02, File Name: uP7534-DS-F0200

uP7534

n

www.DataSheet.co.kr

Datasheet pdf - http://www.DataSheet4U.net/

Ordering Informatio

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XX-8SA4357Pu8-POShgiHevticAelbanEXX-8ARA4357Pu8-POSMhgiHevticAelbanE

XX-8SB4357Pu8-POSwoLevticAelbanEXX-8ARB4357Pu8-POSMwoLevticAelbanE

XX-8ASC4357Pu8-POShgiHevticAelbanEXX-8URA4357Pu8-POSMPhgiHevticAelbanE

XX-8ASD4357Pu8-POSwoLevticAelbanEXX-8URB4357Pu8-POSMPwoLevticAelbanE

XX-5MA4357Pu5-32TOShgiHevitcAelbanEXX-5AME4357Pu5-32TOShgiHevticAelbanE

XX-5MB4357Pu5-32TOSniPelbanEtuohtiWXX-5AMF4357Pu5-32TOSwoLevticAelbanE

XX-5AMC4357Pu5-32TOShgiHevitcAelbanEXX-5AMG4357Pu5-32TOShgiHevticAelbanE

XX-5AMD4357Pu5-32TOSwoLevticAelbanEXX-5AMH4357Pu5-32TOSwoLevticAelbanE

edoC

XX

)A(dlohserhTtimiLtnerruClacipyT)A(tnerruCtiucriCtrohSlacipyT

)A(tnerruCdaoL

suounitnoCmumixaMdednemmoceR

600.16.06.0

018.10.13.1

515.25.1

023.30.2

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Note: uPI products are compatible with the current IPC/JEDEC J-STD-020 requirement. They are halogen-free, RoHS
compliant and 100% matte tin (Sn) plating that are suitable for use in SnPb or Pb-free soldering processes.

Typical Application Circuit

ON

OFF

V

IN

EN#

VIN

VIN

OC#

VOUT

5

6

7

1

2

VOUT

3

NC

8

uP7534BS8

GND

4

V

OUT

2uPI Semiconductor Corp., http://www.upi-semi.com

Rev. F02, File Name: uP7534-DS-F0200

emaNniPnoitcnuFniP

www.DataSheet.co.kr

Datasheet pdf - http://www.DataSheet4U.net/

uP7534

Functional Pin Description

#CO

TUOV

DNG

#NE/NE

NIV

CN

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Functional Block Diagram

2

VOUT

VOUTVIN

VIN

7 7

7

Charge

Pump

100ohm

(uP7534A/C/E/G) EN

(uP7534B/D/F/H) EN#

Enable

5

Logic

UVLO

Driver

Thermal

Sense

Current

Limit

Deglitch

OC#

1

GND

4

3uPI Semiconductor Corp., http://www.upi-semi.com

Rev. F02, File Name: uP7534-DS-F0200

uP7534

www.DataSheet.co.kr

Datasheet pdf - http://www.DataSheet4U.net/

Functional Description

Power Switch

The power switch is an N-channel MOSFET with a low on­state resistance. Configured as a high-side switch, the
power switch prevents current flow from VOUT to VIN and
VIN to VOUT when disabled. The power switch is controlled

by a logic enable input (active high for uP7534A/C/E/G and
active low for uP7534B/D/F/H) and driven by an internal
charge pump circuit. When the output load exceeds the
current-limit threshold or a short is present, the uP7534
asserts overcurrent protection and limits the output current
to a safe level by driving the power switch into saturation
mode.

Charge Pump

An internal charge pump supplies power to the driver circuit
and provides the necessary voltage to pull the gate of the
MOSFET above the source. The charge pump operates
from input voltages as low as 2.7 V and requires little supply
current.

Driver

The driver controls the gate voltage of the power switch. To
limit large current surges and reduce the associated
electromagnetic interference (EMI) produced, the driver
incorporates circuitry that controls the rise times and fall
times of the output voltage.

Chip Enable (for uP7534A/C/E/G)

The EN pin receives a TTL or CMOS compatible input to
enable/disable the uP7534A/C/E/G Logic low disables the
power switch, charge pump, gate driver and other circuitry
and reduces the supply current down to less than 1uA.
Logic high restores bias to the drive and control circuits
and turns the switch on.

Chip Enable (for uP7534B/D/F/H)

The EN# pin receives a TTL or CMOS compatible input to
enable/disable the uP7534B/D/F/H. Logic high disables
the power switch, charge pump, gate driver and other
circuitry and reduces the supply current down to less than
1uA. Logic low restores bias to the drive and control circuits
and turns the switch on.

Soft Start

The uP7534 features soft start function to eliminate the
inrush current into downstream and voltage droop of
upstream when hot-plug-in with capacitive loads. The soft
start interval is 0.9ms typically. The input current to charge
up the load capacitor is proportional to its capacitance.
The uP7534 current limit function may be active during the
plug-in of extreme large capacitive load. The fault flag is

masked during the softstart interval.

Over Current Limit

The uP7534 continuous monitors the output current for
overcurrent protection to protect the system power, the
power switch, and the load from damage during output short
circuit or soft start interval. When an overload or short circuit
is encountered, the current-sense circuitry sends a control
signal to the driver. The driver in turn reduces the gate
voltage and drives the power FET into its saturation region,
which switches the output into a constant-current mode
and holds the current constant while varying the voltage on
the load. The current limit level is typical 1A when the power
switch operates in linear region and is typical 0.6A in
saturation region (for uP7534A/BS8-06).

The uP7534 asserts fault condition and pulls low OC# when
overcurrent, overtemperature, input under voltage lockout
condition is encountered. The output remains asserted until
the overcurrent or overtemperature condition is removed. A
8ms deglitch circuit prevents the OC# signal from oscillation
or false triggering. If an overtemperature shutdown occurs,
the OC# is asserted instantaneously.

Overtemperature Protection

The uP7534 continuously monitor the operating temperature
of the power switch for overtemperature protection. The
uP7534 asserts overtemperature and turns off the power
switch to prevent the device from damage if the junction
temperature rises to approximately 135OC due overcurrent
or short-circuit conditions. Hysteresis is built into the
thermal sense, the switch will not turns back on until the
device has cooled approximately 20 degrees. The open­drain false reporting output (OC#) is asserted (active low)
when an overtemperature shutdown or overcurrent occurs.
If the fault condition is not removed, the switch will pulse
on and off as the temperature cycles between these limits.

Undervoltage Lockout

A voltage sense circuit monitors the input voltage. When
the input voltage is below approximately 2.2V, a control
signal turns off the power switch.

Output Voltage Discharge When Disabled

The output voltage is discharged through an internal 100Ω

resistor when the output voltage is disabled.

4uPI Semiconductor Corp., http://www.upi-semi.com

Rev. F02, File Name: uP7534-DS-F0200

uP7534

A

g

www.DataSheet.co.kr

Datasheet pdf - http://www.DataSheet4U.net/

bsolute Maximum Ratin

Supply Input Voltage, VIN (Note 1)

DC ------------------------------------------------------------------------------------------------------------------------------------ -0.3V to +6V

< 200us, non-repetitive ------------------------------------------------------------------------------------------------------- -0.3V to +10V
Other Pins ------------------------------------------------------------------------------------------------------------------------------------- -0.3V to +6V
Storage Temperature Range ----------------------------------------------------------------------------------------------------------- -65OC to +150OC
Junction Temperature ------------------------------------------------------------------------------------------------------------------------------------ 150OC
Lead Temperature (Soldering, 10 sec) ------------------------------------------------------------------------------------------------------------ 260OC
ESD Rating (Note 2)

HBM (Human Body Mode) --------------------------------------------------------------------------------------------------------------------- 2kV
MM (Machine Mode) ----------------------------------------------------------------------------------------------------------------------------- 200V

Thermal Information

Package Thermal Resistance (Note 3)

SOP-8 θJA ------------------------------------------------------------------------------------------------------------------------------- 160°C/W
SOP-8 θJC ------------------------------------------------------------------------------------------------------------------------------- 39°C/W
SOT23-5 θJA ------------------------------------------------------------------------------------------------------------------------------- 250°C/W
SOT23-5 θJC ------------------------------------------------------------------------------------------------------------------------------ 50°C/W
MSOP-8 θJA ------------------------------------------------------------------------------------------------------------------------------ 160°C/W
MSOP-8 θJC ------------------------------------------------------------------------------------------------------------------------------- 40°C/W

PMSOP-8 θJA ------------------------------------------------------------------------------------------------------------------------- 86°C/W

PMSOP-8 θJC --------------------------------------------------------------------------------------------------------------------------- 30°C/W

Power Dissipation, PD @ T

SOP-8 ------------------------------------------------------------------------------------------------------------------------------------------ 0.625W
SOP23-5 ------------------------------------------------------------------------------------------------------------------------------------------ 0.4W
MSOP-8 ------------------------------------------------------------------------------------------------------------------------------------------ 0.625W
PMSOP-8 ------------------------------------------------------------------------------------------------------------------------------------------- 1.16W

= 25°C

A

Recommended Operation Conditions

Operating Junction Temperature Range (Note 4) ------------------------------------------------------------------------ -40°C to +125°C
Operating Ambient Temperature Range -------------------------------------------------------------------------------------- -40°C to +85°C

Supply Input Voltage, V

------------------------------------------------------------------------------------------------------ +2.7V to +5.5V

IN

Electrical Characteristics

(VIN= 5V, TA = 25OC, unless otherwise specified)

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DS

Q

V

OLVU

gnisir--2.25.2V

NI

--57--Vm

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delbanE,TUOVnodaoloN--5205Au

5uPI Semiconductor Corp., http://www.upi-semi.com

Rev. F02, File Name: uP7534-DS-F0200