PET1300-12-054RA

PET1300-12-054XA BEL

Document overview

• PDF pages: 23

Technical content

Page 1

PET1300-12-054xA is a 1300 Watt AC to DC power-factor-corrected (PFC) power supply that converts standard AC mains power into a main output of 12 VDC for powering intermediate bus architectures (IBA) in high performance and reliability servers, routers, and network switches.

The PET1300-12-054xA meets international safety standards and displays the CE-Mark for the European Low Voltage Directive (LVD).

High efficiency up to 94.0%

Wide input voltage range: 90 – 264 VAC

Active power factor correction

Always-On 10 W standby output (3.3 V)

Hot-plug capability

Parallel operation with active current sharing

Full digital control for circuit loop and power management

High density design: 30.25 W/in3

Compact form factor: 54.5 x 40.0 x 321.5 mm

PMBus® Communication Interface for control, programming

Fully protected (OTP, OCP, OVP, SCP)

4K Bytes of EEPROM for user information

• 2 Status LEDs: FAIL and OK with fault signaling
• Approved to the latest edition of following Safety Standards: UL/CSA60950-1, IEC / EN 60950-1
• High Performance Servers
• Networking Switches
• Routers

Disclaimer: PMBus is a registered trademark of SMIF, Inc.

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2

PET

1300

-

12

-

054

x

A

Product Family

Power Level Dash

V1 Output

Dash

Width

Airflow

Input

N: Normal

PET Front-Ends

1300 W

12 V

54 mm

A: AC

R: Reverse

The PET1300-12-054xA AC/DC power supply is a fully DSP controlled, highly efficient front-end power supply. It incorporates resonance-soft-switching technology and interleaved power trains to reduce component stresses, providing increased system reliability and very high efficiency. With a wide input operational voltage range and minimal linear derating of output power with input voltage and temperature, the PET1300-12-054xA maximizes power availability in demanding server, network, and other high availability applications. The supply is fan cooled and ideally suited for integration with a matching airflow paths.

The PFC stage is an analogue solution; MCU is used to communicate with DSP chip on secondary side.

The DC/DC stage uses soft switching resonant techniques in conjunction with synchronous rectification. An active OR-ing device on the output ensures no reverse load current and hence it is ideally suited for operation in redundant power systems.

The always-on standby output with voltage level (3.3 Volts), provides power to external power distribution and management controllers. It is protected with an active OR-ing device for maximum reliability.

Status information is provided with front-panel LEDs. In addition, the power supply can be controlled and the fan speed set via the I2C bus. The I2C bus allows full monitoring of the supply, including input and output voltage, current, power, and inside temperatures.

Cooling is managed by a fan controlled by the DSP controller. The fan speed is adjusted automatically depending on the actual power demand and supply temperature and can be overridden through the I2C bus.

Logic Signals

Figure 1. PET1300-12-054xA Block Diagram

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Vi Input Voltage Ranges

Normal operating (Vi min to Vi max)

90

264 VAC

Vin = 230 V, 12 V / 21.6 A, 3.3 V / 0.6 A TA = 25 °C

93.0

η Efficiency without Fan

Vin = 230 V, 12 V / 54 A, 3.3 V / 1.5 A TA = 25 °C

94.0

%

Vin = 230 V, 12 V / 108 A, 3.3 V / 3 A TA = 25 °C

92.0

After last AC zero point, V1 > 11.6 V, VSB within

Thold Hold-up Time

10

ms

regulation, Vi = 230 VAC, 12 V / 108 A, 3.3 V / 3 A

Figure 2. Derating on Iout vs Vin and Ta for PET1300-12-054NA

1 The Front-End is provided with a minimum hysteresis of 3 V during turn-on and turn-off within the ranges. 2 The output power is should be derating as below curve if operation temperature increases from 45°C to 60°C.

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Figure 3. Derating on Iout vs Vin and Ta for PET1300-12-054RA

Figure 4. Efficiency Measurement Curve

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General Condition: TA = 0… 60 °C, unless otherwise noted.

PARAMETER

DESCRIPTION / CONDITION

MIN NOM MAX

UNIT

Main Output V1

V1 nom Nominal Output Voltage

12.0

VDC

0.5 ∙I1 nom, Tamb = 25 °C

V1 set Output Setpoint Accuracy

-0.5

+0.5 % V1 nom

dV1 tot Total Regulation

Vi min to Vi max, 0 to 100% I1 nom, Ta min to Ta max

-3

+3 % V1 nom

P1 nom Nominal Output Power

V1 = 12 VDC

1296

W

V1 = 12 VDC, Vin ≥ 108 VAC

I1 nom Nominal Output Current

108

ADC

v1 pp Output Ripple Voltage

V1 nom, I1 nom, 20 MHz BW

180 mVpp

dV1 Load Load Regulation

Vi = Vi nom, 0 - 100% I1 nom

60

mV

dV1 Line Line Regulation

Vi =Vi min…Vi max

20

mV

Current Sharing

when Bus load ≥ 27 A

4.5 A

dIshare (abs (I1-I2), between any two

when Bus load < 27 A

5.6 A

units in parallel)

dVdyn Dynamic Load Regulation

-0.6

0.6 V

Iout:10%--60% of full load; 50%--100% of full load dI1/dt = 1A/μs, recovery within 1% of V1 nom

Trec Recovery Time

0.5 1 ms

tAC V1 Start-up Time from AC

2 s

tV1 rise Rise Time

V1 = 10…90% V1 nom

3

ms

µF

CLoad Capacitive Loading

Ta = 25 °C

11000

Standby Output VSB

VSB nom Nominal Output Voltage

3.3

VDC

0.5 ∙ISB nom, Tamb = 25 °C

VSB set Output Setpoint Accuracy

-1

+1 %V1nom

dVSB tot Total Regulation

Vi min to Vi max, 0 to 100% ISB nom, Ta min to Ta max

-1.5

+1.5 %VSBnom

PSB nom Nominal Output Power

VSB = 3.3 VDC, normal airflow

10

W

ISB nom Nominal Output Current

VSB = 3.3 VDC, normal airflow

3

ADC

VSB pp Output Ripple Voltage

VSB nom, ISB nom, 20 MHz BW (See Section 5.1)

45 mVpp

dVSB Droop

0 - 100% ISB nom

67

mV

dVSBdyn Dynamic Load Regulation

-3

3 %VSBnom

ΔISB = 50% ISB nom, ISB = 5 … 100% ISB nom, dIo/dt = 0.5 A/μs, recovery within 1% of V1 nom

µs

Trec Recovery Time

250

tAC VSB Start-up Time from AC

3 s

tVSB rise Rise Time

VSB = 10…90% VSB nom

4 20 ms

µF

CLoad Capacitive Loading

Tamb = 25 °C

1000

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General Condition: TA = 0… 60 °C, unless otherwise noted.

PARAMETER

DESCRIPTION / CONDITION

MIN

NOM MAX

UNIT

F Input Fuses (L+N)

Not user accessible, quick-acting (F)

16

A

V1 OV OV Threshold V1

13.5

14.5 VDC

tOV V1 OV Latch Off Time V1

1 ms

VSB OV OV Threshold VSB

3.6

4.3 VDC

tOV VSB OV Latch Off Time VSB

1 ms

IV1 lim Current Limit V1

See Figure 5 & Figure 6

112 115 117 ADC

Isb lim Current Limit V1 Tamb = 25 °C

Standby output can recover.

4.5 A

IV1 SC Max Short Circuit Current V1

150

A

tV1 SC Short Circuit Regulation Time

V1 < 3 V, time until IV1 is limited to < IV1 sc

2

ms

tV1 SC off Short Circuit Latch Off Time

Time to latch off when in short circuit

500

ms

TSD Over Temperature on Heat Sinks Automatic shut-down

115

°C

NOTE: The OCP should be derating as below curve if operation temperature increases from 45°C to 60°C, And OCP warning is before 2 A than OCP set point.

Figure 5. Vin vs Output Current for PET1300-12-054NA

Figure 6. Vin vs Output Current for PET1300-12-054RA

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6.1 FRONT LEDs

The front-end has 2 front LEDs showing the status of the supply. LED number one is green which indicates presence of AC power, LED number two is bi-colored: green and yellow, which indicates DC power presence or fault. For the position and states of the LEDs see Table 2.

POWER SUPPLY CONDITION

No AC power to all power supplies Power Supply Failure (includes over voltage, over current, over temperature and fan failure) Power Supply Warning events where the power supply continues to operate (high temperature, high power and slow fan) AC Present / 3.3 VSB on (PSU OFF)

Power Supply ON and OK

Table 1. LED Status

GREEN (OK)

AMBER (FAIL)

LED STATUS

LED STATUS

OFF

OFF

OFF

ON

OFF

1 Hz Blinking

1 Hz Blinking

OFF

ON

OFF

NOTE: When unit see fan failure, unit will shut down and can only be restarted by using PSON_L signal or AC input power recycling or PMBus® commands. Refer to software specification for detail.

6.2 ELECTRICAL CHARACTERISTICS

General Condition: TA = 0… 60 °C, unless otherwise noted.

PARAMETER DESCRIPTION / CONDITION

MIN NOM MAX

UNIT

PSKILL_H/PSON_L/PRESENT_L

VIL

Input Low Level Voltage

0

0.8 V

VIH

Input High Level Voltage

2.0

3.6 V

IIL, H

Maximum Input Sink or Source Current

0

1 mA

kΩ

RpuSKILL_H

Internal Pull Up Resistor on PSKILL_H

10

kΩ

RpuPSON_L

Internal Pull Up Resistor on PSON_L

10

kΩ

RpuPRESENT_L

Internal Pull Up Resistor on PRESENT_L

None

kΩ

RLOW

Resistance Pin to SGND for Low Level

0

1

kΩ

RHIGH

Resistance Pin to SGND for High Level

50

PWOK_H Output

Vext

Maximum External Pull Up Voltage

3.6 V

VOL

Output Low Level Voltage

Isink < 2 mA

0

0.4 V

VOH

Output High Level Voltage

Isource < 0.5 mA

2.4

3.6 V

kΩ

RpuPWOK_H

Internal Pull Up Resistor on PWOK_H

None

ACOK_H Output

Vext

Maximum External Pull Up Voltage

3.6 V

VOL

Output Low Level Voltage

Isink < 2 mA

0

0.4 V

VOH

Output High Level Voltage

Isource < 0.5 mA

2.4

3.6 V

kΩ

RpuACOK_H

Internal Pull Up Resistor on ACOK_H

None

SMB_ALERT_L Output

Vext

Maximum External Pull Up Voltage

12 V

VOL

Output Low Level Voltage

Isink < 2 mA

0

0.4 V

IOH

Maximum High Level Leakage Current

10 µA

kΩ

RpuSMB_ALERT_L Internal Pull Up Resistor on SMB_ALERT_L

None

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6.3 GRAPHICAL USER INTERFACE

Bel Power Solutions provide with its “Bel Power Solutions I2C Utility” a Windows® XP/Vista/Win7 compatible graphical user interface allowing the programming and monitoring of the PET1300-12-054xA Front-End. The utility can be downloaded on belfuse.com/power-solutions and supports both the PSMI and PMBus® protocols. The GUI allows automatic discovery of the units connected to the communication bus and will show them in the navigation tree. In the monitoring view the power supply can be controlled and monitored.

Figure 7. I2C Bus to DSP and EEPROM

20% ~ 100% FULL LOAD

COMMAND

10% ~ 20% FULL LOAD

REMARK

Read_Iin

< 0.5 A

+/- 3%

It is for corresponding to max input current

Read_Iout

+/- 2%

+/- 2%

It is for corresponding to max output current

Read_Vin

+/- 3%

+/- 2.5 V

Read_Vout

+/- 2%

+/- 2%

Read_Pin

---

+/- 15%

It is for corresponding to max input power

Read_Pout

+/- 3%

+/- 3%

It is for corresponding to max output power

Table 2. Accuracy for PMBus®

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6.4 PRESENT_L

The PRESENT_L is an output signal and it is used to sense the number of power supplies in the system (operational or not). This signal is connected to the power supply’s output ground. Electrical characteristics see 6.2.

Figure 8. Interconnect Diagram of PRESENT_L Signal

6.5 SMB_ALERT_L

The SMB_ALERT_L is an output signal and shall be an open collector with the pull-up resistor located at the receiving end and shall capable of sinking up to 4 mA. This signal indicates that the power supply is experiencing a problem that the user should investigate. This may be asserted due to Critical events or Warning events. See PMBus® specification for further details.

Figure 9. Interconnect Diagram of SMB_ALERT_L Signal

6.6 PSKILL_H

This is an input signal and is used to force the 12 V main output off if the supply is removed from the system. At the system level this pin will be connected to the output return directly. When this input is low the power supply will operate. If the input is floating the 12 V main output will turn off while the 3.3 VSB will remain on. This signal overrides all other on-and-off signals. On the power supply connector, this pin is shorter than the others so it is a last-make and first-break contact. See below Table 3 for Logic Table.

Figure 10. Interconnect Diagram of PSKILL_H Signal

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SIGNAL CHARACTERISTICS

Accepts a ground input from the system.

Signal Type:

Pull-up to 3.3 VSB located in the power supply.

Input Signal to the power supply PS_KILL = Low, PS_ON = Low

ON

PS_KILL = Open, PS_ON = Low or Open

OFF

PS_KILL = Low, PS_ON = Open

OFF

MIN

MAX

Source current, Vps_kill =Low

4 mA

Table 3. PS_ON_L Signal Characteristics

6.7 PSON_L

The PS_ON_L signal is an input signal used to remotely turn on/off the power supply. PS_ON_L is an active LOW signal that turns on the 12 V main output. In the low state this input will not source more than 4 mA of current. The 12 V output will be disabled when this input is driven HIGH, or open circuited. See Table 4 for Logic Table.

Figure 11. Interconnect Diagram of PSON_L Signal

SIGNAL CHARACTERISTICS

Accepts an open collector/drain input from the system. Pull-up to 3.3 VSB

Signal Type: Input signal to the power supply

located in power supply.

PS_ON_L = Low, PS_KILL = Low

ON

PS_ON_L = Open, PS_KILL = Low or Open

OFF

PS_ON_L = Low, PS_KILL = Open

OFF

MIN

MAX

Output Source Current, VPS_ON_L= Low

4 mA

Table 4. PS_ON_L Signal Characteristics

6.8 PW_OK

PW_OK is an output signal and will be pulled HIGH by the power supply to indicate that all the outputs are within the regulation limits of the power supply. When 12 V main output is < 10.9 V or > 13.2 V, or if any of the outputs fail due to over current protection, over voltage protection, over temperature, or fan failure then this output will be driven LOW. In the event when AC mains power is lost, this signal will be driven LOW at least 20 ms before the +3.3 VSB output is lost. The output will be an open collector/drain. The start of the PW_OK delay time shall be inhibited as long as any power supply’s 12 V output is in current limit. See Table 5.

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Figure 12. Interconnect Diagram of PW_OK Signal

SIGNAL CHARACTERISTICS

Open collector/drain (system side to provide pull-up, another pull-up to

Signal Type:

3.3 VSB could also be located in the power supply)

Output signal from the power supply PW_OK = High

Power OK

PW_OK = Low

Power Not OK

MIN

MAX

Input Sink current, PW_OK = Low

4 mA

Output Source current, PW_OK = High

2 mA

Table 5. PW_OK Signal Characteristics

6.9 AC_OK

This signal is an output signal and will be asserted, driven HIGH, by the power supply to indicate that the input voltage meets the minimum requirements of Section 3.1.3. After falling outside the input voltage requirements for more than 20 ms, the signal must be driven LOW. The output will be an open collector/drain. See below Table 6.

Figure 13. Interconnect Diagram of AC_OK Signal

SIGNAL CHARACTERISTICS

Open collector/drain (system side to provide pull-up, another pull-up to

Signal Type:

3.3 VSB could also be located in the power supply)

Output signal from the power supply AC_OK = High

AC OK

AC_OK = Low

AC Low (Not OK)

MIN

MAX

Input Sink current, AC_OK = Low

4 mA

Output Source current, AC_OK = High

2 mA

Table 6. AC_OK Signal Characteristics

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6.10

CURRENT SHARING

All outputs shall be capable of operating in a redundant current share mode. A maximum of 6 power supplies may be operated in parallel. All outputs shall incorporate an isolation device (Or-ing MOSFET or diode) for fault isolation. Filter capacitors that are located after the isolation device shall be of high reliability and shall be de-rated sufficiently to minimize failures. The 3.3 V output current sharing shall be of a droop type. The +12 V current sharing shall be a single wire type, active current sharing. Connecting the Ishare (current share) pins of each power supply together shall enable the current share feature. Shorting or opening of a current share pin shall not cause the output voltage to go out of steady state regulation.

For 12 V output the Ishare (load sharing) voltage shall be a linear function Ishare [V] = 8 x Iout/108 (with 8 V at 108 A) for a single power supply (~74 mV/A). At light load, the load share becomes difficult because of low feedback signal. Refer to Table 2 for current sharing accuracy. The current balance accuracy is calculated as: 2\*|I1-I2|/ (I1+I2), where the I1 is the PSU1 load current and I2 is the PSU2 load current.

6.11

REMOTE SENSE

The outputs specified shall incorporate remote sense and will compensate for specified load cable drop. In the event of loss of remote sense, all outputs shall revert to internal sense so as to limit the outputs to less than 105% of nominal.

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Unless defined otherwise, all control signals shall be TTL compatible with respect to the output return and shall be isolated from the primary circuit and be SELV rated. All input signals shall be driven from an open collector with the pull-up resistor located in the power supply and shall be capable of sourcing up to 4 mA. General LVTTL signal levels are specified in below table except where explicitly specified otherwise.

PARAMETER

SYMBOL

MIN MAX

UNITS

Output High Voltage

Voh

2.4 3.6

V

Output Low Voltage

Vol

0 0.4

V

Input High Voltage

Vih

2.0 3.6

V

Input Low Voltage

Vil

0 0.8

V

Table 7. Low-Voltage TTL (LVTTL) Voltage Levels

Figure 14. Timing Diagram

PARAMETER

CONDITION / COMMENTS

MIN TYP MAX UNITS

T1 (Tout_rise)

Output voltage rise time from each main output

0.5

100 ms

T2 (Tsb_on_delay)

Delay from AC being applied to 3V3 being within regulation

2500 Ms

T3 (Tac_on_delay)

Delay from AC being applied to all output voltages being within regulation

3000 ms

T4 (Tvout_holdup)

Time all output voltages, including 3V3, stay within regulation after loss of AC

10

ms

T5 (Tpw_ok_holdup)

Delay from loss of AC to de-assertion of PW_OK

5

ms

T6 (Tps_on_delay)

Delay from PS_ON_L active to output voltages within regulation limits

5

400 ms

T7 (Tps_on_pw_ok)

Delay from PS_ON_L de-active to PW_OK being de-asserted

50 ms

T8 (Tac_ok_off)

Delay from loss of AC input to de-assertion of AC_OK

20 ms

T9 (Tpw_ok_on)

Delay from output voltages within regulation limits to PW_OK asserted at turn on

100

1000 ms

T10 (Tpw_ok_off_12V) Delay from PW_OK de-asserted to 12 VDC dropping out of regulation limits

1

700 ms

T11 (Tpw_ok_off_3V3) Delay from PW_OK de-asserted to 3V3 dropping out of regulation limits

20

ms

T12 (Tsb_vout)

Delay from 3V3 being in regulation to 12 VDC being in regulation at AC turn on.

50

1000 ms

T13 (Tac_ok_on)

Delay from AC being applied to assertion of AC_OK

1500 ms

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8.1 IMMUNITY

PARAMETER

DESCRIPTION / CONDITION

CRITERION

IEC / EN 61000-4-2, ±8 kV, 25+25 discharges per test point

ESD Contact Discharge

A

(metallic case, LEDs, connector body) IEC / EN 61000-4-2, ±15 kV, 25+25 discharges per test point

ESD Air Discharge

A

(non-metallic user accessible surfaces) IEC / EN 61000-4-3, 10 V/m, 1 kHz/80% Amplitude Modulation,

Radiated Electromagnetic Field

A

1 µs Pulse Modulation, 10 kHz…2 GHz IEC / EN 61000-4-4, level 3

Burst

AC port ±2 kV, 1 minute

A

DC port ±1 kV, 1 minute IEC / EN 61000-4-5

Surge

4 kV CM

A

2 kV DM

RF Conducted Immunity

IEC/EN 61000-4-6, Level 3, 10 Vrms, CW, 0.1 … 80 MHz

A

IEC/EN 61000-4-11 1: Vi 230 V, 100% Load, Phase 0 °, Dip 100%, Duration 10 mS

A

Voltage Dips and Interruptions

2: Vi 230 V, 100% Load, Phase 0 °, Dip 100%, Duration 20 mS

VSB: A, V1: B

3: Vi 230 V, 100% Load, Phase 0 °, Dip 100%, Duration > 20 mS

VSB, V1: B

NOTE: Most of the immunity requirements are derived from EN 55024: 1998/A2:2003.

8.2 EMISSION

PARAMETER

DESCRIPTION / CONDITION

CRITERION

EN55022 / CISPR 22: 0.15 … 30 MHz, QP and AVG, single unit

Class A

Conducted Emission

EN55022 / CISPR 22: 0.15 … 30 MHz, QP and AVG, 2 units in rack system

Class A

EN55022 / CISPR 22: 30 MHz … 1 GHz, QP, single unit

Class A

Radiated Emission

EN55022 / CISPR 22: 30 MHz … 1 GHz, QP, 2 units in rack system

Class A

IEC61000-3-2, Vin = 115 VAC / 60 Hz, & Vin = 230 VAC/ 50 Hz, 100% Load

Harmonic Emissions

Class A

Acoustical Noise

46 dBA at 1 meter, 25 °C, 50% Load

-

AC Flicker

IEC61000-3-3, Vin = 230 VAC / 60 Hz, 100% Load

Pass

Maximum electric strength testing is performed according to UL / CSA 60950-1, IEC/EN 60950-1. Input-to-output electric strength tests should not be repeated in the field. Bel Power Solutions will not honor any warranty claims resulting from electric strength field tests.

PARAMETER

DESCRIPTION / CONDITION

Approved to the latest edition of the following standards:

Agency Approvals

UL / CSA 60950-1 IEC / EN 60950-1 Input (L/N) to case (PE)

Isolation Strength

Input (L/N) to output

Output to case (PE)

Input to case

Electrical Strength Test

Input to output

MIN NOM

MAX UNIT

Approved by independent body (see CE Declaration) Basic

Reinforced

Functional

2121

VDC

4242

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PARAMETER

DESCRIPTION / CONDITION

MIN NOM MAX

UNIT

TA Ambient Temperature

Vi min to Vi max, I1 norm, ISB nom

0

+60 °C

TS Storage Temperature

Non-operational

-40

+85 °C

Altitude

Operational, above Sea Level

-

10,000 Feet

Na Audible Noise

Vi = 230 VAC, 50% Io nom, TA = 25°C

46

dBA

NOTE: Refer to Figure 2 & 3 for Derating.

PARAMETER

DESCRIPTION / CONDITION

MIN NOM MAX

UNIT

Width

54.1 54.5 54.9

Dimensions

Height

39.6 40.0 40.4 mm

Depth

321.1 321.6 322.1

M Weight

1.09

kg

NOTES: Tolerance: 0.5 mm – 120 mm: ±0.3 mm; 120 mm – 400 mm: ±0.5 mm. A 3D step file of the power supply casing is available on request.

Figure 15. Side View 1

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Figure 17. Side View 2

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Unit:

Tyco Electronics P/N 2-1926739-5 or FCI 10108888-R10253SLF (Bel Power Solutions P/N: ZES.00672)

Counter part:

PIN

NAME

DESCRIPTION

Output

6, 7, 8, 9, 10

V1

+12 VDC main output

1, 2, 3, 4, 5

PGND

Power ground (return)

Control Pins

Standby positive output (+3.3 V)

A1, B1, C1, D1, E1 VSB

A2, B2

SGND

Signal ground (return)

C2

NC

Reserved

D2

NC

Reserved

E2

NC

Reserved

Power supply kill (lagging pin)

A3

PS_KILL

B3

NC

Reserved

I2C data signal line

C3

SDA

D3

V1_SENSE_R Main output negative sense

E3

V1_SENSE

Main output positive sense

I2C clock signal line

A4

SCL

Power supply on input (connect to A2/B2 to

B4

PS_ON_L

turn unit on)

C4

ALERT_L

SMB Alert signal output

12 V current share signal (LS)

D4

ISHARE

E4

AC_OK

AC input OK signal

A5

A0

Address 0

B5

NC

Reserved

Power OK signal output (lagging pin)

C5

PW_OK

D5

A1

Address 1

PRESENT_L Power supply present (lagging pin)

E5

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ORDERING PART

ITEM

DESCRIPTION

SOURCE

NUMBER

Bel Power Solutions I2C Utility

Windows XP/Vista/7 compatible GUI to

N/A

program, control and monitor PET Front- Ends (and other I2C units)

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14.1 ADDRESS SELECT

A2

A1

A0

UNIT ADDRESS

EEPROM ADDRESS

0

0

0

0xB0

0xA0

0

0

1

0xB2

0xA2

0

1

0

0xB4

0xA4

0

1

1

0xB6

0xA6

NOTE: A2 = 1 is not implemented.

Table 8. Address Select

14.2 PMBus® COMMANDS

NOTE:

Reference: PMBus® Power System Management Protocol Specification Part II – Command Language Revision 1.1. Commands not included in the table below are Not Implemented. Feature that are To Be Defined (TBD), or Not Implemented are shaded. R = Read-Only; RW = Read/Write; W = Write-Only.

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Page 21

21

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22

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Table 9. PMBus® Commands

NUCLEAR AND MEDICAL APPLICATIONS - Products are not designed or intended for use as critical components in life support systems, equipment used in hazardous environments, or nuclear control systems. TECHNICAL REVISIONS - The appearance of products, including safety agency certifications pictured on labels, may change depending on the date manufactured. Specifications are subject to change without notice.