AG9712-2BR

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V2.5 Feb 2019 Datasheet Ag9700 Power-Over-Ethernet Module © Silver Telecom 2019 1 Silvertel 1. Features  IEEE802.3af compliant  Small SIL package  Low cost, with minimal external components required  Input voltage range 36V to 57V  Short-circuit protection  Adjustable output  1500V isolation (input to output)  High performance option available with classification programming, industrial temperature range and thermal protection (Ag9700-FL)  Silvertel “design-in” assistance 2. Description The Ag9700 series of modules are designed to extract power from a conventional twisted pair Categor y 5 Ethernet cable, conforming to the IEEE 802.3af Power -over-Ethernet (PoE) standard. The Ag9700 signature and control circuit provides the PoE compatibility signature required by the Power Sourcing Equipment (PSE) before applying up to 15W power to the port. By default all variants of the Ag9700 provides a Class 0 signature; but the Ag9700-FL has the additional feature of classification programming. The DC/DC converter operates over a wide input voltage range and provides a regulated output. The DC/DC converter also has built-in short-circuit output protection. PbPb

V2.5 Feb 2019 Data Sheet Ag9700 Power-Over-Ethernet Module © Silver Telecom 2019 2 Table of Contents

V2.5 Feb 2019 Data Sheet Ag9700 Power-Over-Ethernet Module © Silver Telecom 2019 4 3. Ag9700 Product Selector Part Number† Nominal Output Voltage Maximum Output Power * Marking Ag9712-S 12.0V 12 Watts 12S Ag9705-S 5.0V 9 Watts 5S Ag9703-S 3.3V 6 Watts 3S Ag9712-2BR 12.0V 12 Watts 12B Ag9705-2BR 5.0V 9 Watts 5B Ag9703-2BR 3.3V 6 Watts 3B Ag9724-FL 24.0V 12 Watts 24FL Ag9712-FL 12.0V 12 Watts 12FL Ag9705-FL 5.0V 9 Watts 5FL Ag9703-FL 3.3V 6 Watts 3FL *At 25°C with VIN = 48V † The Ag9700 fully meets the requirements of RoHS directive 2011/65/EC & EU RoHS 2, Moisture Sensitive Level 1 and HBM 1. Table 1: Ordering Information The Ag9700-2BR and Ag9700-FL are physically the same size as the Ag9700-S, but they have the two input bridge rectifiers on-board (see Figure 1). Ag9700-S Input Input Signature & Control DC:DC Converter DC Output VIN+ +VDC -VDC ADJ 470uF +VDC -VDCVIN- - + Ag9700-2BR or FL VA1 VA2 VB1 VB2 CP1* CP2* * Note: On Ag9700-FL only Figure 1: Block Diagram

V2.5 Feb 2019 Data Sheet Ag9700 Power-Over-Ethernet Module © Silver Telecom 2019 5 4. Pin Description Ag9700 Pb Lead free Figure 2: Ag9700 SIL Package Format

V2.5 Feb 2019 Data Sheet Ag9700 Power-Over-Ethernet Module © Silver Telecom 2019 6

4.1 Ag9700-S

Pin # Name Description 1 VIN+ Direct Input +. This pin connects to the positive (+) output of the input bridge rectifiers (internally connected to pin 3). 2 VIN- Direct Input -. This pin connects to the negative (-) output of the input bridge rectifiers (internally connected to pins 4). 3 VIN+ Direct Input +. Internally connected to pin 1. 4 VIN- Direct Input -. Internally connected to pin 2. 5 IC Internal Connection. Do not connect to this pin. 6 NC No Connection. 7 -VDC DC Return. This pin is the return path for the +VDC output. 8 +VDC DC Output. This pin provides the regulated output from the DC/DC converter.

9 ADJ

Output Adjust. The output voltage can be adjusted from is nominal value, by connecting an external resistor from this pin to either the +VDC pin or the - VDC pin. 10 IC Internal Connection. Do not connect to this pin. Table 2: Pin Description

4.2 Ag9700-2BR

Pin # Name Description

1 VA1

RX Input (1). This input pin is used in conjunction with VA2 and connects to the centre tap of the transformer connected to pins 1 & 2 of the RJ45 connector (RX) - it is not polarity sensitive.

2 VA2

TX Input (2). This input pin is used in conjunction with VA1 and connects to the centre tap of the transformer connected to pins 3 & 6 of the RJ45 connector (TX) - it is not polarity sensitive. 3 VB1 Direct Input (1). This input pin is used in conjunction with VB2 and connects to pin 4 & 5 of the RJ45 connector - it is not polarity sensitive. 4 VB2 Direct Input (2). This input pin is used in conjunction with VB1 and connects to pin 7 & 8 of the RJ45 connector - it is not polarity sensitive. 5 IC Internal Connection. Do not connect to this pin. 6 NC No Connection. 7 -VDC DC Return. This pin is the return path for the +VDC output. 8 +VDC DC Output. This pin provides the regulated output from the DC/DC converter. Output Adjust. The output voltage can be adjusted from is nominal value, by connecting an external resistor from this pin to either the +VDC pin or the - VDC pin. 10 IC Internal Connection. Do not connect to this pin. Table 3: Pin Description

V2.5 Feb 2019 Data Sheet Ag9700 Power-Over-Ethernet Module © Silver Telecom 2019 7

4.3 Ag9700-FL

Pin # Name Description RX Input (1). This input pin is used in conjunction with VA2 and connects to the centre tap of the transformer connected to pins 1 & 2 of the RJ45 connector (RX) - it is not polarity sensitive. TX Input (2). This input pin is used in conjunction with VA1 and connects to the centre tap of the transformer connected to pins 3 & 6 of the RJ45 connector (TX) - it is not polarity sensitive. 3 VB1 Direct Input (1). This input pin is used in conjunction with VB2 and connects to pin 4 & 5 of the RJ45 connector - it is not polarity sensitive. 4 VB2 Direct Input (2). This input pin is used in conjunction with VB1 and connects to pin 7 & 8 of the RJ45 connector - it is not polarity sensitive.

5 CP1

Class Programming (1). Connecting an external resistor between this pin and CP2 will change the current class of the module (see Section 5.4). With no resistor fitted the Ag9700-FL will default to Class 0.

6 CP2

Class Programming (2). Connecting an external resistor between this pin and CP1 will change the current class of the module (see Section 5.4). With no resistor fitted the Ag9700-FL will default to Class 0. 7 -VDC DC Return. This pin is the return path for the +VDC output. 8 +VDC DC Output. This pin provides the regulated output from the DC/DC converter. Output Adjust. The output voltage can be adjusted from is nominal value, by connecting an external resistor from this pin to either the +VDC pin or the - VDC pin. 10 IC Internal Connection. Do not connect to this pin. Table 4: Pin Description

V2.5 Feb 2019 Data Sheet Ag9700 Power-Over-Ethernet Module © Silver Telecom 2019 8 5. Functional Description

5.1 Inputs

The Ag9700 is compatible with equipment that uses Alternative A or Alternative B options, see Figure 3. It is specified that the PSE does not apply power to both outputs at the same time (Refer to IEEE802.3af for more information). Ag9700-2BR or FL PSE (48V) Ag9700-S DC OUTPUT VIN+ VIN- +/- +/- POWERED DEVICE (PD) POWER SOURCING EQUIPMENT (PSE) RX TX TX RX +VDC -VDC VA1 VA2 VB1 VB2 Figure 3: Typical System Diagram

5.2 PD Signature

When the Ag9700 is connected to the Cat 5e cable, it will automatically present a Powered Device (PD) signature to the Power Sourcing Equi pment (PSE) , when requested. The equipment will then recognise that a PD is connected to that line and supply power.

5.3 Isolation

To meet the safety isolation requirements of IEEE802.3af section 33.4.1 a PD must pass the electrical strength test of IEC 60950 sub claus e 6.2. This calls for either a) 1500Vac test or b) 1500V impulse test. The Ag9700 is specified to meet the 1500Vdc impulse test . It is also important that the tracks on either side of the isolation barrier have at least a 3mm clearance, see Figures 9 & 10 and Section 7 for more information.

V2.5 Feb 2019 Data Sheet Ag9700 Power-Over-Ethernet Module © Silver Telecom 2019 9

5.4 Power Classification Programming (Ag9700-FL only)

This feature is optional from the PSE and is used for power management. The Ag9700 -FL allows the Class to be externally programmed by connecting a resistor between th e CP1 and CP2 pins, see Fi gure 4. If no resistor is fitted the Ag9700 -FL will default to Class 0, a full list of programming resistor values are shown in Table 5. CLASS Programming Resistance (Ohms) Min Power (W) Max Power (W) 0 Do not fit 0.44 12.95 1 698 ±1% 0.44 3.84 2 383 ±1% 3.84 6.49 3 249 ±1% 6.49 12.95

4 TBD Reserved Reserved

Table 5: Class Programming Ag9700-FL CP2 CP1 Class Programming option R Figure 4: Class Programming Option Note: The Ag9700-S and 2BR do not have classi fication programming and are fixed to Class 0 (0.44 Watts to 12.95 Watts).

V2.5 Feb 2019 Data Sheet Ag9700 Power-Over-Ethernet Module © Silver Telecom 2019 10

5.5 DC/DC Converter

The Ag9700’s DC/DC converter provides a regulated output that has built-in short-circuit output protection – refer to Table 1 for voltage and power ratings.

5.6 Output Adjustment

The Ag9700 has an ADJ pin, which allows the output voltage to be increased or decreased from its nominal value. Figure 5 shows how the ADJ pin is connected. Ag9700 +VDC -VDC ADJ Ag9700 +VDC -VDC ADJ Increasing the output voltage from nominal Reducing the output voltage from nominal R R Figure 5: Output Adjustment Reducing the output voltage, connect R between ADJ and +VDC Ag9703 Ag9705 Ag9712 Ag9724 Value of R Output Value of R Output Value of R Output Value of R Output Open 3.30V Open 5.00V Open 12.00V Open 24.00V 0 Ohms 3.20V 0 Ohms 4.45V 0 Ohms 10V 0 Ohms 19.5V Increasing the output voltage, connect R between ADJ and -VDC Ag9703 Ag9705 Ag9712 Ag9724 Value of R Output Value of R Output Value of R Output Value of R Output Open 3.3V Open 5.00V Open 12.00V Open 24.00V 0 Ohms 3.75V 0 Ohms 5.65V 0 Ohms 12.65V 0 Ohms 24.65V Table 6: Output Adjustment Resistor (R) Value

V2.5 Feb 2019 Data Sheet Ag9700 Power-Over-Ethernet Module © Silver Telecom 2019 11

5.7 Typical Connections

The Ag9700 requires minimal external components for a basic configuration, as shown in Figure 6. C1 must be fitted for output stability and should be a minimum of 470µF. This capacitor should be positioned as close to the output pins as possible. C1 is also required to handle load step change s and reduce the output ripple . For application s where the output needs to cope with high load step changes, the value of C1 may need to be increased to a minimum of 1000µF. This can be a standard low cost electrolytic , but by using a low ESR electrolytic this would reduce the ripple . A low ESR capacitor is recommended for operation below 0°C. Ag9700-2BR or FL Ag9700-S RX TX VIN+ VIN- +VDC -VDC ADJ Output RJ-45 BR1 BR2 VB1 VB2 VA1 VA2 RB C1 = Standard 470µF 16V CP1 CP2 Figure 6: Basic Connection Diagram The output adjust input (ADJ) is optional, it is provided to give great er flexibility to the Ag9700 product range. Further information on using these inputs can be found in Section 5.6. The classification programming input s (on the Ag9700 -FL) are also optional. Further information can be found in Section 5.4.

V2.5 Feb 2019 Data Sheet Ag9700 Power-Over-Ethernet Module © Silver Telecom 2019 12 The Ag9700 must always supply a minimum current , see Table 11.3. The Ag9700 will not be damaged if operated below this level , but it can emit a low level audible noi se. If this audible noise is not an issue, then it is possible for the Ag9700 to work safely with no load at all . But t o ensure that the PSE has a sufficient load to meet its Maintain Power Signature (MPS), it would be advisable not to operate the Ag9700 below the specified minimum load.

5.8 Additional Output Filtering

The Ag9700 -FL has a built -in PI filter and should only require the external electrolytic capacitor as shown in Figure 6. The Ag9 700-S and 2BR output ripple and noise can be improved with addi tional output filtering. Figure 6 shows the basic output filtering for ripple and noise ; which at maximum load this is typically 200mVp-p (for Ag9712-S or 2BR). Figure 7 shows two cost effective methods that can be used to reduce the ripple and noise, if required. Ag9700-S or 2BR +VDC -VDC +VDC -VDC Output Filter BOutput Filter A Output Output C1 = 470µF 16V C2 & C3 = 10µF 16V Ceramic C3 C2 C1 = 470µF 16V C2 & C3 = 10µF 16V Ceramic L1 = 1.8µH Ag9700-S or 2BR Figure 7: Output Filtering for the Ag9700-S or 2BR The simplest and cheapest solution is shown in Figure 7 - Output Filter A. This will reduce the ripple and noise to typically 135mVp-p. Adding a PI filter, as shown in Figure 7 – Output Filter B, will take the ripple and noise level down to typically 14mVp-p. A low ESR electrolytic is recommended for operation below 0°C.

5.9 Start-up Power

It is important that during start-up the Ag9700 input voltage is ≥42V, this will ensure that the module powers up correctly. Once the dc/dc converter is up and running the module will work normally even if the input voltage is reduced to its minimum level of 36V. When using an IEEE802.3af compliant PSE this will not be an issue, as the minimum output voltage of the PSE must be ≥44V.

V2.5 Feb 2019 Data Sheet Ag9700 Power-Over-Ethernet Module © Silver Telecom 2019 14 The Keep out area shows the position of the isolation barrier and must be kept clear of tracks. Keep out area Output VoltageINPUTS R1 R2 ADJ Ag9700 14.005.50 Figure 9: Typical SIL Layout 8. Operating Temperature Range Because the Ag9700 is a power component, it will generate heat, so it is important that this be taken into consideration at the design stage. The heart of th e Ag9700 is a DC/DC converter, which like any other power supply will generate heat. The amount of heat generated by the module will depend on the load it is required to drive and the input voltage supplied by the PSE. The information shown within this section of datasheet is referenced to a nominal 48Vdc input voltage supplied by the PSE. The Ag9700-S and 2BR has a maximum ambient * operating temperature of 70 °C, see Figures 11 to 13. The Ag9700-FL has a maximum ambient operating temperature of 85 °C, see Figures 14 to 17. These results were measured without any heatsink in an Associated Environmental System SD -302. The performance of the Ag9700 can be improved by forcing the airflow over the part or by using a heatsink (see the Ag9700 application note “ANX-POE-Thermal Considerations” for more information). The Ag9700-FL has built -in thermal protection, so the module will protect itself. Bu t the Ag9700-S and 2BR do not have built-in thermal protection, so it is very important that the maximum ambient temp erature is not exceeded . T o prevent the module from being damaged it is recommended that the module be powered by an IEEE 802.3af compliant PSE or Midspan equipment. However the Ag9700 may be powered by a user designed power supply which should include thermal and over current protection. Because each application is different it is impossible to give fixed and absolute thermal recommendations. However it is important that any enclosure used has sufficient ventilation for the Ag9700 and a direct airflow if possible.

V2.5 Feb 2019 Data Sheet Ag9700 Power-Over-Ethernet Module © Silver Telecom 2019 19 9. Protection

9.1 Input Protection

The Ag9700 must be protected from over -voltages exceeding the 80V maximum rated surge input voltage. An in expensive but effective solution can be achieved by connecting Tranzorb diodes across each of the inputs; see Figure 18. Ag9700-S SMAJ58A * VIN+ VIN- * Note: bidirectional Tranzorb diodes are also suitable in this configuration (SMAJ58CA) Figure 18: Input Protection More information is available in Apps Note “ANX-POE-Protection”.

9.2 Thermal Protection

The Ag9700 -FL (only) has built -in thermal protection that will protect the module by shutting down the dc/dc converter if exceeded. 10. EMC The Ag9700 has been designed and tested to meet EN55022 Class B. However, b ecause the Ag9700 will only be one component within a system; it is impossible to say whether the final product will pass EMC testing, without the need for additional filtering. The Ag9700 uses a DC:DC converter with pulse frequency modulation, so care does need to be taken to minimise emissions. Figure 19 shows our recommended EMC Filter configuration for the Ag9700 -S. For more information on the other product variants, refer t o the application note “ANX-POE-EMI” on our website.

V2.5 Feb 2019 Data Sheet Ag9700 Power-Over-Ethernet Module © Silver Telecom 2019 20 VIN+VIN- +VDC -VDC L4 L5 L6 L1 L2 L3 Isolation Barrier To Load From Magnetics BR1 BR2 Ag9700-S ADJ +C1 Figure 19: EMC Filtering Components: - BR1 & BR2 = MB4S, D1 = SMAJ58A, L1 – L6 = MMZ2012S102A, C1 = 470µF 16V. 11. Electrical Characteristics

11.1 Absolute Maximum Ratings1

Parameter Symbol Min Max Units 1 DC Supply Voltage VCC -0.3 60 V 2 DC Supply Voltage Surge for 1ms VSURGE -0.6 80 V

3 Storage Temperature TS -40 +100 OC

Note 1: Exceeding the above ratings may cause permanent damage to the product. Functional operation under these conditions is not implied. Maximum ratings assume free airflow.

11.2 Recommended Operating Conditions

Parameter Symbol Min Typ Max Units

1 Input Supply Voltage1 VIN 36 48 57 V

2 Under Voltage Lockout VLOCK 30 36 V

-20 -40 Ta / OC Note 1: With minimum load 2: See Section Operating Temperature Range

V2.5 Feb 2019 Data Sheet Ag9700 Power-Over-Ethernet Module © Silver Telecom 2019 21

11.3 DC Electrical Characteristics

DC Characteristic Sym Min Typ1 Max Units Test Comments

1 Nominal Output Voltage +VDC

3.1 4.75 11.5 23.5 3.3 5.0 12.0 3.5 5.25 12.5 24.5 V V V V Ag9703 Ag9705 Ag9712 Ag9724-FL

2 Output Current (VIN = 48V) PWR

1.8 1.8 1.0 0.5 A A A A Ag9703 Ag9705 Ag9712 Ag9724-FL

3 Line Regulation (VIN = 36V

to 57V) VLINE 0.1 % @ Max load

4 Load Regulation - Min to

Max (VIN = 48V) VLOAD 0.6 0.2 0.2 Ag9703 Ag9705 Ag9712 Ag9724-FL Output Ripple and Noise Ag9700-S and 2BR2 Ag9700-FL VRN 200 mVp-p mVp-p @ Max load

6 Minimum Load ILOAD

7 Short-Circuit Duration TSC ∞ sec

9 Isolation Voltage (I/O) VISO 1500 VPK Impulse Test

Note 1: Typical figures are at 25°C with a nominal 48V supply and are for design aid only. Not Guaranteed 2: The output ripple and noise can be reduced with an external filter, see Section 5.8.

V2.5 Feb 2019 Data Sheet Ag9700 Power-Over-Ethernet Module © Silver Telecom 2019 22 12. Package

12.1 SIL Package

1419.0 (max) 14.0 (Recommended PCB hole diameter = 1.1 ± 0.05) Dimensions (in mm) are nominal unless otherwise stated 0.6 ± 0.05 3.0 8.5 (max) Ag9700 56.0 5.5 Isolation Barrier

12.2 SIL Plan View

The shaded section shows the external component keep-out area around the module. 5.6 1.6 5.0 13.4 24.0 18.5 13.5 Dimensions (in mm) are nominal unless otherwise stated Information published in this datasheet is believed to be correct and accurate. Silver Telecom assumes no liability for error s which may occur or for liability otherwise arising out of use of this information or infringement of patents which may occur as a result of such use. No license is granted by this document under patents owned by Silver Telecom or licensed from third parties by Silver Telecom . The products, their specification and information appearing in this document are subject to change by Silver Telecom without notice.