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UCS81003 Fiches technique(PDF) 8 Page - Microchip Technology

No de pièce UCS81003
Description  Automotive USB Port Power Controller with Charger Emulation
Download  108 Pages
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Fabricant  MICROCHIP [Microchip Technology]
Site Internet  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

UCS81003 Fiches technique(HTML) 8 Page - Microchip Technology

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UCS81003
DS20005334A-page 8
 2014 Microchip Technology Inc.
Selectable Current Limits
ILIM1
—570
mA
ILIM Resistor = 0 or 47 k
(minimum mA setting)
ILIM2
1000
ILIM Resistor = 10 k or 56 k
ILIM3
—1130
ILIM Resistor = 12 k or 68 k
ILIM4
1350
ILIM Resistor = 15 k or 82 k
ILIM5
1680
ILIM Resistor = 18 k or 100 k
ILIM6
2050
ILIM Resistor = 22 k or 120 k
ILIM7
2280
ILIM Resistor = 27 k or 150 k
ILIM8
2850
3000
ILIM Resistor = 33 k or VDD
Pin Wake Time
tPIN_WAKE
—3
ms
SMBus Wake Time
tSMB_WAKE
—4
ms
Idle Sleep Time
tIDLE_SLEEP
—200
ms
Thermal Regulation Limit
TREG
110
°C
Die Temperature at which
current limit will be reduced.
Thermal Regulation
Hysteresis
TREG_HYST
—10
°C
Hysteresis for tREG functionality.
Temperature must drop by this
value before ILIM value restored
to normal operation.
Thermal Shutdown
Threshold
TTSD
135
°C
Die Temperature at which port
power switch will turn off.
Thermal Shutdown
Hysteresis
TTSD_HYST
35
°C
After Shutdown due to
TTSD being reached, a die
temperature drop is required
before port power switch can
be turned on again.
Auto-Recovery Test Current
ITEST
190
mA
Portable device attached,
VBUS = 0V, Die Temp < TTSD
Auto-Recovery Test Voltage
VTEST
750
mV
Portable device attached,
VBUS = 0V before application,
Die Temp < TTSD
Programmable,
250 - 1000 mV, default listed
Discharge Impedance
RDISCHARGE
—100
TABLE 1-2:
ELECTRICAL CHARACTERISTICS (CONTINUED)
Electrical Characteristics: Unless otherwise specified, VDD = 4.5V to 5.5V, VS = 2.9V to 5.5V, VPULLUP = 3V to 5.5V,
TJ = -40°C to +125°C; all Typical values at VDD = VS = 5V, TJ = +27°C.
Characteristic
Sym.
Min.
Typ.
Max.
Unit
Conditions
Note 1:
For split supply systems using the Attach Detection feature, VS must not exceed VDD +150 mV.
2:
This parameter is ensured by design and is not 100% tested.
3:
This parameter is characterized, but not 100% production tested.
4:
The current measurement full-scale range maximum value is 3.0A. However, the UCS81003 cannot report
values above ILIM (if IBUS_R2MIN  ILIM) or above IBUS_R2MIN (if IBUS_R2MIN > ILIM and ILIM 1.68A).
5:
The Minimum and Maximum values represent the boundaries of a programmable range. Each value in the
range is typical.


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