STULPI01BTBR STMicroelectronics, STULPI01BTBR Datasheet - Page 19

• Manufacturer Part Number: STULPI01BTBR
• Manufacturer: STMicroelectronics

Specifications of STULPI01BTBR

• Number Of Transceivers: 1
• Esd Protection: YeskV
• Operating Supply Voltage (typ): Not RequiredV
• Operating Temperature Classification: Industrial
• Operating Supply Voltage (max): Not RequiredV
• Operating Supply Voltage (min): Not RequiredV
• Mounting: Surface Mount
• Operating Temperature (max): 85C
• Operating Temperature (min): -40C
• Lead Free Status / RoHS Status: Compliant

STULPI01A - STULPI01B
6.6
6.7
6.8
Note:
Figure 6.
R
R
VBUS
VBUS
VBUS
VBUS
IN_VBREF
IN_VBREF
VBREF_FAULT
VBREF_FAULT
External charge pump
It is possible to use an external charge pump or power switch controlled by the PSWn pin
(active low open drain). This functionality is controlled by DrvVbus and DrvVbusExternal
ULPI OTG Control register bits.
V
These comparators monitor the V
V
valid status signalizes that the V
Session end detector signalizes V
STULPI01 also implements embedded V
voltage to external analog 5 V reference signal applied to VB_REF_FAULT pin.
VB_REF_FAULT pin
V
The internal OC detector is enabled when over-current_PD bit in the Power Control register
(Vendor-specific area) is set to 0b and Use External VBUS Indicator is set to 1b. In this
mode, the VB_REF_FAULT pin functions as the input of the analog reference for internal
over-current detector.
If the external charge pump is already equipped with an overcurrent detector, its output can
be also monitored through VB_REF_FAULT pin, but overcurrent_PD bit must be set to 1b. In
this mode VB_REF_FAULT will function as standard digital input pin with 5 V tolerance.
Functionality of VB_REF_FAULT pin can be seen in more detail (on
After reset, overcurrent_PD bit is 1b, internal overcurrent detector is disabled.
VB_REF_FAULT pin functionality
BUS
BUS
BUS
(5 V TOLERANT)
(5 V TOLERANT)
valid status signalizes that the voltage is above the V
overcurrent conditions can be monitored by either internal or an external OC detector.
SCHMIT
SCHMIT
comparators and V
VB
VB
FAULT
FAULT
V
V
V
V
V
V
REF
REF
BUS
BUS
BUS
BUS
REF
REF
+
+
+
+
+
+
+
+
-
-
-
-
-
-
-
-
/EN
/EN
EN
EN
VBOC
VBOC
VBOC
VBOC
VBUSVLD
VBUSVLD
IndicatorComplement
IndicatorComplement
Doc ID 14817 Rev 3
BUS
BUS
BUS
Internal VBUS Valid
Internal VBUS Valid
voltage is above the V
BUS
voltage.
voltage is below V
OverCurrent_PD or neg (UseExternalVbusIndicator)
OverCurrent_PD or neg (UseExternalVbusIndicator)
BUS
overcurrent (OC) detector
0
0
0
0
1
1
1
1
Valid
Valid
over current detector which compares V
[UseExternalVbusIndicator, IndicatorPassthru]
[UseExternalVbusIndicator, IndicatorPassthru]
SESS_END
BUS_VLD
SESS_VLD
level.
[0,X]
[0,X]
[0,X]
[0,X]
[1,1]
[1,1]
[1,1]
[1,1]
[1,0]
[1,0]
level (4.4 V). Session
Figure
level (0.8 to 2.0 V).
2
2
Block description
RX CMD VBUS Valid
RX CMD VBUS Valid
6).
AM04948v1
BUS
19/44