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參數資料
| 型號： | SMM150NCR03 |
| 廠商： | Summit Microelectronics, Inc. |
| 英文描述： | Single-Channel Supply Voltage Marginer/Monitor |
| 中文描述： | 單通道電源電壓Marginer /監視器 |
| 文件頁數： | 1/22頁 |
| 文件大小： | 388K |
| 代理商： | SMM150NCR03 |
SMM150
Single-Channel Supply Voltage Marginer/Monitor
Preliminary Information
1
(See Last Page)
SUMMIT
Microelectronics, Inc. 2005
1717 Fox Drive San Jose CA 95131 Phone 408 436-9890 FAX 408 436-9897
www.summitmicro.com
2075 2.6 05/13/05
1
FEATURES
Capable of margining supplies with trim inputs
using either positive or negative trim pin control
Wide Margin range from 0.3V to VDD using
internal reference
10-bit ADC readout of supply voltage over I
2
C bus
Margining Controlled Via:
I
2
C Command
Input Pins (M
UP
, M
DN
)
Two programmable general purpose sensor inputs
(COMP1/2) – UV/OV with FAULT Output
Programmable glitch filter (COMP1/2)
Programmable internal VREF, 0.5V or 1.25V
Operates from 2.7V to 5.5V supply
General Purpose 256-Byte EEPROM with Write
Protect
I
2
C 2-wire serial bus for programming
configuration and monitoring status
28 lead QFN
20 ball
Ultra
CSP
TM
(Chip-Scale) package
Applications
In-system test and control of Point-of-Load (POL)
Power Supplies for Multi-voltage Processors,
DSPs and ASICs
Routers, Servers, Storage Area Networks
INTRODUCTION
The SMM150 is a highly accurate power supply
voltage supervisor and environmental monitor with
provisions for voltage margining of the monitored supply.
The part includes an internal voltage reference to
accurately monitor and margin the supply to within ±1%.
The SMM150 has the capability to margin over a wide
range from 0.3V to VDD using the internal reference and
can read the value of the supply over the I
C bus using
an on-chip 10-bit ADC. The monitor and margin levels
are set using the I
2
C serial bus. The SMM150 initiates
margining via the I
2
C bus or by using the M
UP
or M
DN
inputs. Once the pre-programmed margin target voltage
is reached, the SMM150 holds the converter at this
voltage until receiving an I
C command or de-asserting
the margin input pin. When the SMM150 is not
margining, the TRIM output pin is held in a high
impedance state allowing the converter to operate at its
nominal set point. Two general purpose input pins are
provided for sensing under or overvoltage conditions. A
programmable glitch filter associated with these inputs
allows the user to ignore spurious noise signals. A
FAULT# pin is asserted once either input set point is
exceeded.
Using the I
2
C interface, a host system can communicate
with the SMM150 status register and utilize 256-bytes of
nonvolatile memory.
SIMPLIFIED APPLICATIONS DRAWING
2.7V-5.5V
VM
TRIM
TRIM
VOUT+
SEN+
DC-DC Converter
VDD
WP
A0
A1
A2
COMP1
COMP2
SCL
SDA
FAULT#
READY
CAPM
MUP
MDN
I
2
C
Interface
Margin
Commands
V1
SMM150
GND
VDD_CAP
Status
Outputs
Figure 1 – Applications using the SMM150 Controller to control the Voltage Margining of a DC/DC Converter.
Note: This is an applications example only. Some components and values are not shown.
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| SMM150NCR04 | Single-Channel Supply Voltage Marginer/Monitor |
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| SMM150NR00 | Single-Channel Supply Voltage Marginer/Monitor |
| SMM150NR01 | Single-Channel Supply Voltage Marginer/Monitor |
| SMM150NR02 | Single-Channel Supply Voltage Marginer/Monitor |
相關代理商/技術參數 |
參數描述 |
|---|---|
| SMM150NCR04 | 制造商:SUMMIT 制造商全稱:SUMMIT 功能描述:Single-Channel Supply Voltage Marginer/Monitor |
| SMM150NCR05 | 制造商:SUMMIT 制造商全稱:SUMMIT 功能描述:Single-Channel Supply Voltage Marginer/Monitor |
| SMM150NR00 | 制造商:SUMMIT 制造商全稱:SUMMIT 功能描述:Single-Channel Supply Voltage Marginer/Monitor |
| SMM150NR01 | 制造商:SUMMIT 制造商全稱:SUMMIT 功能描述:Single-Channel Supply Voltage Marginer/Monitor |
| SMM150NR02 | 制造商:SUMMIT 制造商全稱:SUMMIT 功能描述:Single-Channel Supply Voltage Marginer/Monitor |
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