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SMB113B の電気的特性と機能

SMB113BのメーカーはSummitです、この部品の機能は「Four-channel Programmable DC-DC System Power Managers」です。


製品の詳細 ( Datasheet PDF )

部品番号 SMB113B
部品説明 Four-channel Programmable DC-DC System Power Managers
メーカ Summit
ロゴ Summit ロゴ 




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SMB113B Datasheet, SMB113B PDF,ピン配置, 機能
SMB113A/B/SMB117/A
Preliminary Information
High-power, Four-channel Programmable DC-DC System Power Managers
FEATURES & APPLICATIONS
Digital programming of all major parameters via
I2C interface and non-volatile memory
Output voltage set point
Input/battery voltage monitoring
Output power-up/down sequencing
Digital soft-start and output slew rate
Dynamic voltage control of all outputs
UV/OV monitoring of all outputs
Enable/Disable outputs independently
User friendly Graphical User Interface (GUI)
Four synchronous step-down output channels
Integrated RESET monitor
+2.7V to +6.0V Input Range
Highly accurate output voltage: <1.5%
Factory programmable dead times
0% to 100% Duty Cycle operation
Undervoltage Lockout (UVLO) with hysteresis
250kHz (SMB117A), 400kHz (SMB117), 800kHz
(SMB113A), 1MHz (SMB113B) operating frequency
96 bytes of user configurable nonvolatile memory
Applications
Car & Marine Navigation Systems
Set-top Boxes
TVs
DDR Memory
Mobile Computing/PDAs
Office Equipment
DMB Systems
SIMPLIFIED APPLICATIONS DRAWING
INTRODUCTION
The SMB113A/B and SMB117/A are highly integrated and
flexible four-channel power managers designed for use in a
wide range of applications. The built-in digital programmability
allows system designers to custom tailor the device to suit
almost any multi-channel power supply application from digital
camcorders to set-top boxes. Complete with a user friendly
GUI, all programmable settings, including output voltages and
input/output voltage monitoring, can be customized with ease.
The SMB113A/B and SMB117/A integrate all the essential
blocks required to implement a complete four-channel power
subsystem consisting of four synchronous step-down “buck”
controllers. Additionally sophisticated power control/monitoring
functions required by complex systems are built-in. These
include digitally programmable output voltage set point, power-
up/down sequencing, enable/disable, dynamic voltage
management and UV/OV monitoring on all channels.
The integration of features and built-in flexibility of the
SMB113A/B and SMB117/A allows the system designer to
create a “platform solution” that can be easily modified via
software without major hardware changes. Combined with the
re-programmability of the SMB113A/B and SMB117/A, this
facilitates rapid design cycles and proliferation from a base
design to future product generations.
The SMB113A/B and SMB117/A are suited to a wide variety of
applications with an input range of +2.7V to +6.0V. Higher
input voltage operation can easily be implemented with a small
number of external components. Output voltages are
extremely accurate (<1.5%). Communication is accomplished
via the industry standard I2C bus. All user-programmed
settings are stored in non-volatile EEPROM of which 96 bytes
may be used as general-purpose memory. The devices are
offered in both the commercial and the industrial operating
temperature range. The package type is a lead-free, RoHS
compliant, 5x5 QFN-32.
+2.7V to +6.0V
or
Li-Ion
I2C/SMBus
Enable Input
Reset Input
RESET Output
(Power Good)
SMB113A/B
System
Control
and
Monitoring
4 Step-
Down
(Buck)
Channels
RESET
Monitor
+0.5V to Vin (Prog.) @ 1.5A/5A
CPU Core
+0.5V to Vin (Prog.) @ 1.5A/5A Memory, I/O
+0.5V to Vin (Prog.) @ 1.5A/5A
DSP/Codec
+0.5V to Vin (Prog.) @ 1.5A/5A
Analog/RF
+2.7V to +6.0V
or
Li-Ion
I2C/SMBus
Enable Input
Reset Input
RESET Output
(Power Good)
SMB117/A
System
Control
and
Monitoring
4 Step-
Down
(Buck)
Channels
RESET
Monitor
+0.5V to Vin (Prog.) @ 5A/10A
CPU Core
+0.5V to Vin (Prog.) @ 5A/10A
Memory, I/O
+0.5V to Vin (Prog.) @ 5A/10A
DSP/Codec
+0.5V to Vin (Prog.) @ 5A/10A
Analog/RF
Figure 1 – Applications schematic featuring the SMB113A/B/117/A programmable DC-DC controllers.
Note: This is an applications example only. Some pins, components and values are not shown.
© SUMMIT Microelectronics, Inc. 2007
757 N. Mary Avenue • Sunnyvale CA 94085
http://www.summitmicro.com/
2111 2.5 6/11/2010
Phone 408 523-1000 • FAX 408 523-1266
1

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SMB113B pdf, ピン配列
TYPICAL APPLICATION
VIN: +2.7V to +6.0V
+0.8V to VIN @ 5A (10A)
SMB113A/B
(SMB117/A)
VBATT
HVSUP3
VDDCAP
GND
HSDRV_CH3
LSDRV_CH3
SDA
SCL
VM_CH3
COMP1_CH3
PWREN
COMP2_CH3
HEALTHY/nRESET
HOST_RESET HVSUP2
HVSUP0
HSDRV_CH2
HSDRV_CH0
LSDRV_CH2
LSDRV_CH0
VM_CH2
COMP1_CH2
VM_CH0
COMP2_CH2
COMP1_CH0
HVSUP1
COMP2_CH0
HSDRV_CH1
LSDRV_CH1
VM_CH1
COMP1_CH1
COMP2_CH1
SMB113A/B/SMB117/A
Preliminary Information
+0.8V to VIN @ 5A (10A)
+0.8V to VIN @ 5A (10A)
+0.8V to VIN @ 5A (10A)
Figure 2 – Typical application schematic
Summit Microelectronics, Inc
2111 2.5 6/11/2010
3


3Pages


SMB113B 電子部品, 半導体
SMB113A/B/SMB117/A
Preliminary Information
PIN DESCRIPTION
Pin Number Pin Type
14 IN
15 CAP
16 PWR
17 OUT
18 PWR
19 OUT
20 IN
21 IN
22 IN
23 OUT
24 PWR
25 OUT
26 IN
27 IN
28 IN
Pin Name
VM_CH1
VDD_CAP
VBATT
LSDRV_CH2
HVSUP2
HSDRV_CH2
COMP2_CH2
COMP1_CH2
VM_CH2
LSDRV_CH3
HVSUP3
HSDRV_CH3
PWREN
COMP2_CH3
COMP1_CH3
Pin Description
The VM_CH1 (Channel 1 Voltage Monitor) pin connects the channel 1
step-down controller output. Internally the VM_CH1 pin connects to an
internal programmable resistor divider.
The VDD_CAP (VDD Capacitor) pin is an external capacitor input used
to filter the internal supply.
Power supply to part.
The LSDRV_CH2 (Channel 2 Low-side Driver) pin is the lower
switching node of the channel 2 synchronous step-down buck
controller. Attaches to the gate of n-channel MOSFET.
Channel 2 High Voltage Supply for Channel 2 buck driver.
The HSDRV_CH2 (Channel 2 High-side Driver) pin is the upper
switching node of the channel 2 synchronous step-down buck
controller. Attach to the gate of p-channel MOSFET. A delay exists
between the assertion of HSDRV_CH2 and assertion of LSDRV_CH2
to prevent excessive current flow during switching.
The COMP2_CH2 (Channel 2 secondary Compensation) pin is the
secondary compensation input of the channel 2 step-down buck
controller.
The COMP1_CH2 (Channel 2 primary Compensation) pin is the
primary compensation input of the channel 2 step-down buck
controller. Each pin is internally connected to a programmable resistor
divider.
The VM_CH2 (Channel 2 Voltage Monitor) pin connects the channel 6
step-down controller output. Internally the VM_CH2 pin connects to an
internal programmable resistor divider.
The LSDRV_CH3 (Channel 3 Low-side Driver) pin is the lower
switching node of the channel 3 synchronous step-down buck
controller. Attaches to the gate of n-channel MOSFET.
Channel 3 High Voltage Supply for Channel 3 buck driver.
The HSDRV_CH3 (Channel 3 High-side Driver) pin is the upper
switching node of the channel 3 synchronous step-down buck
controller. Attach to the gate of p-channel MOSFET. A delay exists
between the assertion of HSDRV_CH3 and assertion of LSDRV_CH3
to prevent excessive current flow during switching.
The PWREN (Power Enable) pin is a programmable input used to
enable (disable) selected supplies. This pin can also be programmed
to latch and act as a debounced, manual push button input. Active high
when level triggered, active low when used as a push- button input.
When unused this pin should be tied to a solid logic level.
The COMP2_CH3 (Channel 3 secondary Compensation) pin is the
secondary compensation input of the channel 3 step-down buck
controller.
The COMP1_CH3 (Channel 3 primary Compensation) pin is the
primary compensation input of the channel 3 step-down buck
controller. Each pin is internally connected to a programmable resistor
divider.
Summit Microelectronics, Inc
2111 2.5 6/11/2010
6

6 Page



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共有リンク

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部品番号部品説明メーカ
SMB113

Four Channel Programmable DC-DC System Power Manager

Summit
Summit
SMB113A

Four-channel Programmable DC-DC System Power Managers

Summit
Summit
SMB113B

Four-channel Programmable DC-DC System Power Managers

Summit
Summit


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