3.3A Charger Interf ace, W ide Input Sensorless CC/CV
Synchronous-Rectified Buck Converter
for QC2.0/QC3.0/PE+1.1/PE+2.0 And FCP
The uP9616 is a high-efficiency synchronous-rectified buck
converter with an internal power switch. With internal low
RDS(ON) switches, the high-efficiency buck converter is
ca pable of delivering up to 3.3A output current for charger
interface a nd a wide input voltage range from 8V to 32V . It
operates in either CV (Consta nt Output Voltage) mode or
CC (Constant Output Current) mode a nd provides a current
limitation function. The uP9616 has a constant output
voltage 5.2V/9V/12V for Qualcomm® Quick ChargeTM 3.0/
2.0(QC2.0/QC3.0) that is detected from D+ a nd D- line and
automatically detects whether a connected Powered Device
(PD) is Quick Charge (QC2.0/QC3.0) capable before
enabling output voltage adjustment. If a PD not compli ant
to Quick Charge (QC2.0/QC3.0) is detected, the uP9616
disables output voltage adjustment to ensure safe operation
with legacy 5.2V only USB PDs.
uP9616 is a USB secondary side fa st-charging converter,
supporting Qualcomm® Quick ChargeTM 3.0 (QC 3.0) High
Voltage Dedicated Charging Port (HVDCP) Class A
specification.
uP9616 allows for selection of the output voltage of a n AC/
DC USB adapter based on commands from the Portable
Device (PD) being powered. Selecting a higher charging
voltage will reduce the charging current for a given power
level resulting in reduced IR drops and increased system
efficiency. Another advantage of QC3.0 is a decreased
battery charging time and a reduced PD system cost tha nks
to the ability to select an opti mum charging voltage. This
eliminates the need f or costly DC/DC converters within the
PD. The USB-bus voltage can be controlled in discreet
steps from 3.6 V up to 12.1V. The output current is limited
not to exceed maximum allowable power level.
Other features for the buck converter include internal softstart, adjustable external CC (Constant Output Current)
limit setting, built-in fixed line-compensation, short circuit
protection, VIN/VOUT over voltage protection, and over
temperature protection. It is available in space saving
V DF N6x5-8L a nd V DF N5x6-10L pa ckages.
PDA Like Device Car Chargers
Portable Charging Devices
rebmuNredrOepyTegakcaPgnikraMpoT
8CDP6169PuL8-5x6NFDVP6169Pu
AYDP6169PuL01-6x5NFDVP6169Pu
Note:
(1) Please check the sample/production availability with
uPI representatives.
(2) 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.
VIN
1
VIN
2
D+
D-
GND
3
45
VDFN6x5-8L
D-
2
1
9
10
SENSE-
SENSE+D+
VDFN5x6-10L
CC2
3
GND
8
BOOT
8
LX
7
BOOT
SENSE+
6
SENSE-
VIN
CC1
4
5
7
6
LX
LX
www.upi-semi.com
1uP9616-DS-C3202, Feb. 2017
Conceptual
T ypical App licat ion Circuit
Features
uPI Confidential
uP9616
Certification: uP9616 is certified by Qualcomm
and UL. Please refer to the information below
for verification:
The uP9616 provides CV/CC function. It operates in either
CV (Consta nt Output V oltage) mode or CC (Constant Output
Current) mode. The function provides a current limitation
function and adjusts external current limit setting
(Default=3.3A). In the CV mode, the output voltage is
controlled within +1.5%. In the CC mode, the output current
variation is less tha n +3% of the nominal value which can
be set up to 3.3A by the current sen sing resistor.
When Output current increa se until it reache s the CC limit
set by the R
transition from regulating output voltage to regulating output
current, and the output voltage will drop with increasing
load.
The CC (Constant Output Current) limit is set at 3.3A by
default with an external re sista nce R
the (SENSE1+) - (SENSE1-) voltage gets higher than
130mV and re aches the current limit, the driver is turned
off. The CC (Consta nt Output Current) limit is set a ccording
to the following equation:
CC (Constant Output Current) Li mit
Output Cable Resistance Compensation
In charger applications, the large load will cause voltage
drop in the output cable. The uP9616 ha s a built-in ca ble
compensation function. When the load increases, the
cable compensator will increa se a n adjustable regulation
of the error amplifier that can make the output voltage
constant. Use the curve and table to adjust internal the
reference voltage values for fixed USB cable compensation
by outside resistance R
Figure 1 and Table 1.The fixed cable compensation is
calculated as f ollows:
LOADCOMPRI
R
m( Ω)06
PMOC
I
)Am(
DAOL
00
0050
000106
005109
resistor. At this point, the device will
SENSE
= 39mΩ,When
SENSE
m
130
=
SENSE
= 39mΩ (default), a s shown in
SENSE
COM
x =
)Vm(
egatloVnoitasnepmoCelbaCBSUdexiF
200
150
(mV)
100
COMP
V
50
0
050010001500200025003000
I
LOAD
Figure 1 USB Cable Compensation at
a Fixed Resistor Divider V alue
Current Limit Protection
The uP9616 continuously monitors the inductor current,
when the inductor current is higher than current limit
threshold, the current limit function activates and forces
the upper switch turning off to limit inductor current cycle
by cycle.
Output Short Circuit Protection
The uP9616 provides output short circuit protection func-
tion. Once the output loader short-circuits, the SCP will
be triggered then always hiccup, the hiccup cycle time is
set by an internal counter. When the SCP condition is
removed or disa ppears, the converter will resume normal
operation and the hiccup status will terminate.
Output Over V oltage Protection
The uP9616 provides output over voltage protection. Once
the output voltage (mea sured the at SENSE- pin) gets higher
than OVP thre shold, the OVP will be triggered to shut down
the converter. When the OVP condition disappears, the
converter will resume normal operation and resume the
normal state automatically .
Over Temperature Protection
The OTP is triggered and shuts down the uP9616 if the
junction temperature is higher than 150oC The OTP is a
non-latch type protection. The uP9616 automatically
initiates a nother soft start cycle if the junction temperature
drops below 130oC.
(mA)
R
= 60mV/A (Fixed)
COMP
0002021
0052051
0003081
T able 1 USB Ca ble Compensation Application T a ble
www.upi-semi.com
5uP9616-DS-C3202, Feb. 2017
Conceptual
Functional Description
uPI Confidential
uP9616
High V oltage Dedicated Charging Port (HV DCP) Mode
After power-up pins D+ and D- of uP9616 are shorted with
impedance R
set to V
mode. If a portable device compatible with the Qualcomm
Quick Charge specification is connected, a negotiation
between HV DCP and PD is executed. Once the negotiation
is successful the uP9616 opens D+ and D- short connection
and D- is pulled down with a R
HV DCP mode. It monitors D+ and D- in puts. Based on the
specified control patterns, the internal voltage reference
value V
voltage to the required value.
The uP9616 is available in Cla ss A version. Cla ss A allows
to change the output voltage up to VBUS = 12V. If the
unplug event is detected the decoder circuitry turns-on a n
internal current sink, which discharges the output ca pacitors
to a safe voltage level. If the uP9616 is set to a Continuous
mode it responds to the PD requests in a Single request
mode. It does not support Group request mode.
HV DCP Continuous Mode
The continuous mode of operation leverages the previously
unused state in QC2.0. If the portable devices try and utilize
this mode, it applies voltages on D+ and D- per Table 2.
Assuming the HV DCP supports this mode of operation, it
will glitch filter the request as it currently does, using
T GLITCH_V_CHANGE(40ms). Before the portable device
can begin to increment or decrement the voltage, it must
wait TV_NEW_REQUEST_CONT before pulling D+ and Dhigh or low. Once this ti me has f inished, the portable device
now attempts to increment or decrement the voltage. To
increment, the portable device sends a pulse of width
T ACTIVE by pulling D+ to VDP_UP and then must return
D+ to VDP_SRC for TINACTIVE.
voltage 5.2V . The device is in a BC1.2 compatible
BUS
is adjusted in order to increa se or decrea se output
REF
and internal reference voltage V
DCP_DAT
. The uP9616 enters
DM_DWN
REF
is
eciveDelbatroPAssalCPCDVH
+D-DegatloVtuptuO
V6.0DNGV2.5
V3.3V6.0V9
V6.0V6.0V21
V6.0V3.3edoMsuounitnoC
3.33.3egatloVsuoiverP
Table2. HVDCP detection voltage coding a nd status
Note: GND is not forced by the portable device. The portable
device shall go High-Z and the HV DCP pulls D- low through
Rdm_dwn. This is to prevent misdetection when current
flowing through GND causes the GND in the porta ble device
to be at a higher voltage relative to HVDCP GND. Care
should be taken in the portable device a s this ca n result in
a negative relative voltage on D- as seen by the portable
device.
6uP9616-DS-C3202, Feb. 2017
www.upi-semi.com
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