SBOU227A September   2019  – November 2023 ALM2402F-Q1

 

  1.   1
  2.   ALM2402F-Q1 Evaluation Module
  3.   Trademarks
  4. 1Introduction
  5. 2EVM Circuit Description
  6. 3Jumper Settings
  7. 4Power-Supply Connections
  8. 5Input and Output Connections
  9. 6Modifications
  10. 7Schematic, PCB Layout, and Bill of Materials
    1. 7.1 Schematic
    2. 7.2 PCB Layout
    3. 7.3 Bill of Materials
  11. 8Revision History

3 Jumper Settings

Figure 3-1 details the default jumper settings of the ALM2402FQ1EVM. Figure 3-1 explains the configuration for these jumpers.

GUID-13AE7D8C-ED5C-45E8-A368-B46D0F229BE8-low.gif Figure 3-1 ALM2402FQ1 Evaluation Module Default Jumper Settings
Table 3-1 Default Jumper Configuration
Jumper Function Default Position Description
J5 VCC_S reverse polarity protection Shunt 2-3 Shunt 2-3: Schottky diode blocks VCC_S supply reverse current
Shunt 1-2 bypasses VCC_S Schottky diode protection
J8 VCC1 source Shunt 1-2 Shunt 1-2 selects VCC_S for op amp1 output supply
Shunt 2-3 selects VCC_1 for op amp 1 output supply
J10 VCC2 source Shunt 1-2 Shunt 1-2 selects VCC_S for op amp2 output supply
Shunt 2-3 selects VCC_2 for op amp 2 output supply
J9 SH_DN / OTF Shunt 2-3 Overtemperature flag or shutdown:
Shunt 2-3 turns on amplifiers; pin works as overtemperature flag
Shunt 1-2 shuts down amplifiers
CAUTION:

The SH_DN/OTF's pull-up voltage larger than 7 V can permanently damage the device, see the Absolute Maximum Ratings of ALM2402F-Q1’s data sheet.

If the supply voltage VCC_S is greater than 5 V, then the pull-up resistor R20 must be removed and the SH_DN/OTF pin must be driven from a separate voltage source, or a 4.7 V Zener needs to be added to the SH_DN/OTF pin as shown in Figure 2-1 and Figure 7-1.

Note: The 4.7 V Zener clamp has not implemented into the existing AMPS080_A EVM .