XRP9710 and XRP9711
Dual 6A Programmable Power Module
January 2014
Rev. 1.0.1
GENERAL DESCRIPTION
The XRP9710 and XRP9711 are programmable
step down power modules providing two 6A
outputs. The module package contains the
switching
controller,
power
MOSFETs,
inductors and support components. As a
result, external components are minimal. A
wide input voltage range (4.75V to 5.5V or
5.5V to 22V) allows for single supply operation
from standard power rails.
The modules measure only 12x12x2.75mm
making it half the size of competing 12V
capable 6Amp modules. The 2.75mm height
allows them to be placed on the back of
boards or under heat sinks where other
solutions cannot, yet they contain two full 6A
buck power stages and two Digital Pulse Width
Modulator (DPWM) controllers with gate
drivers. Designed to operate at a constant
PWM switching frequency between 500kHz and
750kHz, the Digital Pulse Frequency Mode
(DPFM) results in better than 80% efficiency
at light load currents and low operating
current allow for portable and Energy Star
Each XRP9710 or
compliant applications.
XRP9711
output
can
be
individually
programmed to as low as 0.6V with a
resolution as fine as 2.5mV, and configurable
for precise soft start and soft stop sequencing,
including delay and ramp control.
The XRP9710/1 is fully controlled via a SMBus-
compliant I
2
C interface allowing for advanced
local and/or remote reconfiguration, full
performance monitoring and reporting as well
as fault handling.
Built-in
output
over-voltage,
over-
temperature, over-current and under voltage
lockout protections insure safe operation
under abnormal operating conditions.
The XRP9710/1 is offered in a
compliant, halogen-free LGA package.
RoHS
FEATURES
•
XRP9710 – Dual 6A Outputs with
Differential Sensing
•
XRP9711 – Dual 6A Outputs with
Control for Two External Power Stages
•
12 x 12 x 2.75mm LGA Package
•
Wide Input Voltage Range: 4.75V to
22V
−
Low Range: 4.75V to 5.5V
−
High Range: 5.5V-22V
•
Output Voltage Range: 0.6V to 5.5V
•
SMBus Compliant - I
2
C Interface
−
Full Power Monitoring and Reporting
•
3 x 15V Capable PSIOs + 2 x GPIOs
•
Full Start/Stop Sequencing Support
•
Built-in Thermal, Over-Current, UVLO
and Output Over-Voltage Protections
•
On-Board 5V Standby LDO
•
On-Board Non-volatile Memory
•
CISPR22 Level B radiated emissions
•
PowerArchitect™ 5.1 or later Design
Tool
APPLICATIONS
•
•
•
•
•
•
•
Servers
Base Stations
Switches/Routers
Broadcast Equipment
Industrial Control Systems
Automatic Test Equipment
Video Surveillance Systems
Exar Corporation
48720 Kato Road, Fremont CA 94538, USA
www.exar.com
Tel. +1 510 668-7000 – Fax. +1 510 668-7001
XRP9710 and XRP9711
Dual 6A Programmable Power Module
January 2014
Rev. 1.0.1
TYPICAL APPLICATION DIAGRAM
Load
Cout
VOUT3+
VOUT3-
PVOUT3
PGND3
PVIN
Cin
LX3
PGND4
Load
Cout
PVOUT4
LX4
XRP9710
VOUT4-
VOUT4+
ENABLE
VCC
LDO5
1uF
AGND (DAP)
Figure 1 XRP9710 Application Diagram with differential voltage sensing
GPIO1
SDA
SCL
PSIO0
PSIO1
PSIO3
GPIO0
VOUT3
Cout
VIN
+
BST2
GH2
LX2
GL2
VIN
VOUT1
+
+
GL_RTN2
LX3
PVOUT3
PGND3
PVIN
Cin
VOUT2
+
PGND4
Cout
PVOUT4
BST1
GH1
LX1
GL1
ENABLE
VCC
LDO5
GL_RTN1
LX4
XRP9711
VOUT4
AGND (DAP)
VOUT1
VOUT2
VOUT3
VOUT4
PSIO0
PSIO1
PSIO3
GPIO0
1uF
Figure 2 XRP9711 Application Diagram
Exar Corporation
48720 Kato Road, Fremont CA 94538, USA
www.exar.com
Tel. +1 510 668-7000 – Fax. +1 510 668-7001
GPIO1
SDA
SCL
XRP9710 and XRP9711
Dual 6A Programmable Power Module
FEATURES AND BENEFITS
World’s smallest 12V capable dual 6A
module at 12x12x2.75mm
Programmable Power Benefits
•
Fully Configurable
−
Output set point
−
Feedback compensation
−
Frequency set point
−
Under voltage lock out
−
Input voltage measurement
−
Gate drive dead time
•
Reduced Development Time
−
Configurable and re-configurable for
different Vout, Iout, Cout, and Inductor
values
−
No need to change external passives for a
new output specification.
•
Higher integration and Reliability
−
Lowest component count for a fully
configurable module
PowerArchitect™ 5 Design and
Configuration Software
−
Wizard quickly generates a base design
−
Calculates all configuration registers
−
Projects can be saved and/or recalled
−
GPIOs can be configured easily and
intuitively
−
“Dashboard” Interface can be used for
real-time monitoring and debug
System Benefits
•
Reliability is enhanced via communication
with the system controller which can
obtain real-time data on an output
voltage, input voltage and current.
System processors can communicate with
the XRP9710/1 directly to obtain data or
make adjustments to react to circuit
conditions
System logging and history, diagnostics
and remote reconfigurability.
•
•
System Integration Capabilities
•
•
Single supply operation
I
2
C interface allows:
−
Communication with a System Controller
or other Power Management devices for
optimized system functionality
−
Access to modify or read internal
registers that control or monitor:
−
Output Current
−
Input and Output Voltage
−
Soft-Start/Soft-Stop Time
−
‘Power Good’
−
Part Temperature
−
Enable/Disable Outputs
−
Over Current
−
Over Voltage
−
Temperature Faults
−
Adjusting fault limits and
disabling/enabling faults
−
Packet Error Checking (PEC) on I
2
C
communication
•
5 GPIO pins with a wide range of
configurability
−
Fault reporting (including UVLO
Warn/Fault, OCP Warn/Fault, OVP,
Temperature, Soft-Start in progress,
Power Good, System Reset)
−
Allows a Logic Level interface with other
non-digital IC’s or as logic inputs to other
devices
Frequency and Synchronization
Capability
−
Selectable switching frequency between
124kHz and 1.23MHz (500kHz to 750kHz
internal power stages)
−
Main oscillator clock and DPWM clock can
be synchronized to external sources
Internal MOSFET Drivers (XRP9711)
−
Internal FET drivers (4Ω/2Ω) per channel
−
Built-In Automatic Dead-time adjustment
−
17ns Rise and 11ns Fall times
•
•
© 2013 Exar Corporation Confidential
3/36
Rev. A0.0.5
XRP9710 and XRP9711
Dual 6A Programmable Power Module
ABSOLUTE MAXIMUM RATINGS
These are stress ratings only and functional operation of
the device at these ratings or any other above those
indicated in the operation sections of the specifications
below is not implied. Exposure to absolute maximum
rating conditions for extended periods of time may affect
reliability.
LDO5, GLx, VOUTx .................................... -0.3V to 7.0V
ENABLE .................................................... -0.3V to 7.0V
GPIO0/1, SCL, SDA ............................................... 6.0V
PSIO Inputs ........................................................... 18V
Vcc ....................................................................... 28V
LXx .............................................................. -1V to 28V
BSTx, GHx .................................................... VLXx + 6V
Storage Temperature .............................. -65°C to 150°C
Power Dissipation ................................ Internally Limited
Lead Temperature (Soldering, 10 sec) ................... 245°C
ESD Rating (HBM - Human Body Model) .................... 2kV
OPERATING RATINGS
Input Voltage Range V
CC
............................... 5.5V to 25V
PVIN Voltage Range .......................................3.0 to 22V
Input Voltage Range V
CC
= LDO5 ................ 4.75V to 5.5V
VOUT1, 2, 3, 4 ...................................................... 5.5V
Junction Temperature Range ....................-40°C to 125°C
Package Power Dissipation max at 25°C .................. 5.5W
JEDEC51-2A Package Thermal Resistance θ
JA
........ 18°C/W
Complies with CISPR22....................................... Level B
ELECTRICAL SPECIFICATIONS
Specifications with standard type are for an Operating Junction Temperature of T
J
= 25°C only; limits applying over the full
Operating Junction Temperature range are denoted by a “•”. Typical values represent the most likely parametric norm at T
J
= 25°C, and are provided for reference purposes only. Unless otherwise indicated, V
CC
= 5.5V to 22V.
Q
UIESCENT
C
URRENT
Parameter
V
CC
Supply Current in SHUTDOWN
ENABLE Turn On Threshold
ENABLE Pin Leakage Current
0.82
Min.
Typ.
10
Max.
20
0.95
10
-10
440
600
µA
Units
µA
V
uA
Conditions
EN = 0V, V
CC
= 12V
V
CC
= 12V Enable Rising
EN=5V
EN=0V
All channels disabled
V
CC
Supply Current in STANDBY
GPIOs programmed as inputs
V
CC
=12V,EN = 5V
V
CC
Supply Current 2ch PFM
3.1
mA
2 channels on set at 5V, VOUT forced to
5.1V, no load, non-switching, Ultra-sonic
off, V
CC
=12 V, No I
2
C activity.
4 channels on set at 5V, VOUT forced to
5.1V, no load, non-switching, Ultra-sonic
off, V
CC
=12V, No I
2
C activity.
All channels enabled, Fsw=600kHz, gate
drivers unloaded, No I
2
C activity.
V
CC
Supply Current 4ch PFM
V
CC
Supply Current ON
4.0
18
mA
mA
I
NPUT
V
OLTAGE
R
ANGE AND
U
NDERVOLTAGE
L
OCKOUT
Parameter
V
CC
Range
PVIN Range
Min.
5.5
4.75
3.0
Typ.
Max.
25
5.5
22
Units
V
V
V
•
•
•
Conditions
With V
CC
connected to LDO5
© 2014 Exar Corporation
4/36
Rev. 1.0.1
XRP9710 and XRP9711
Dual 6A Programmable Power Module
V
OLTAGE
F
EEDBACK
A
CCURACY AND
O
UTPUT
V
OLTAGE
S
ET
P
OINT
R
ESOLUTION
Parameter
VOUT Regulation Accuracy
Low Output Range
0.6V to 1.6V
PWM Operation
VOUT Regulation Accuracy
Mid Output Range
0.6V to 3.2V
PWM Operation
VOUT Regulation Accuracy
High Output Range
0.6V to 5.5V
PWM Operation
VOUT Regulation Range
VOUT Native Set Point
Resolution
VOUT Fine Set Point Resolution
1
Min.
-5
-20
-7.5
-22.5
-15
-45
-20
-50
-30
-90
-40
-100
0.6
12.5
25
50
2.5
5
10
120
90
75
10
1
0.67
-155
-310
-620
-5
-10
-20
157.5
315
630
5
10
20
Typ.
Max.
5
20
7.5
22.5
15
45
20
50
30
90
40
100
5.5
Units
mV
mV
mV
mV
mV
mV
mV
mV
mV
mV
mV
mV
V
mV
•
•
•
•
•
•
•
Conditions
0.6 ≤ VOUT ≤ 1.6V
0.6 ≤ VOUT ≤ 1.6V
V
CC
=LDO5
0.6 ≤ VOUT ≤ 3.2V
0.6 ≤ VOUT ≤ 3.2V
V
CC
=LDO5
0.6 ≤ VOUT ≤ 5.5V
0.6 ≤ VOUT ≤ 4.2V
V
CC
=LDO5
Without external divider network
Low Range
Mid Range
High Range
Low Range
Mid Range
High Range
Low Range
Mid Range
High Range
Low Range
Mid Range
High Range
Low Range
Mid Range
High Range
Low Range
Mid Range
High Range
mV
VOUT Input Resistance
VOUT Input Resistance in PFM
Operation
Power Good and OVP Set Point
Range (from set point)
Power Good and OVP Set Point
Accuracy
kΩ
MΩ
mV
mV
Note 1: Fine Set Point Resolution not available in PFM
© 2014 Exar Corporation
5/36
Rev. 1.0.1
