Infineon TLF4277 Demoboard Application Note Download | Manualshive

Page: 1 / 18

background image

TLF4277 Demoboard

Automotive Power

Application Note

Rev. 1.1, 2012-04-25

1
2
3
...
»

Summary of Contents for TLF4277 Demoboard

Page 1: ...TLF4277 Demoboard Automotive Power Application Note Rev 1 1 2012 04 25...

Page 2: ...Fault conditions such as overtemperature and output overvoltage are monitored and indicated at the current sense output The maximum output current limit of the device is adjustable to provide addition...

Page 3: ...onents at output for variable voltage regulator The output voltage is calculated according to Equation 1 VQ R1 R2 R2 x VREF int neglecting IADJ 1 VREF int is typically 1 22 V To avoid errors caused by...

Page 4: ...ents are over current overvoltage and temperature shutdown Figure 3 Block diagram current and protection monitor To reduce possible effects from the supply voltage VBAT additional filtering of the sup...

Page 5: ...2 The level of the current ICSO can be adjusted according to Equation 2 Adjustment ICSO 2 Adjustment of the voltage level for VCSO 3 1 The graph is just an example and only valid for an certain config...

Page 6: ...he ADJ pin is 20 higher than the internal reference voltage VREF int which is typically 1 22 V Under this condition the CSO pin will be driven through an internal voltage buffer with the voltage level...

Page 7: ...oard the maximum of the operating range defined in Table 1 must be followed 1 The demo board is operating at ambient temperature of 25 C 2 The max value depends on the max rating of external component...

Page 8: ...s 5 V and 8 V which can be configured by setting the jumpers JP2 and JP3 see Figure 9 1 Nominal value 3 3 2 Current Limitation Setting The TLF4277 Demoboard provides two output voltage options 54 mA a...

Page 9: ...following condition Tambient 25 C Vin 13 5 V 3 4 1 Current Monitor Performance Setup 1 8 V output voltage JP2 open JP3 close 170 mA current limitation JP4 open JP5 close The typical current monitor p...

Page 10: ...own in Table 5 in comparison with the nominal value The current limitation accuracy is specified in section 7 2 on page 17 of the TLF4277 data sheet 1 Setup 2 5 V output voltage JP2 open JP3 close 54...

Page 11: ...etection When VOUT is short connected to VIN an overvoltage will be detected Under this condition the voltage measured at CSO pin is shown in Table 8 in comparison with the typical value in the TLF427...

Page 12: ...U4MM B5 Banana jack BABU4MM B6 Banana jack BABU4MM C1 10u 50V C2220K C2 100u 50V CPOL EUE C3 10u 16V not mounted C1206 C4 2u2 10V C0805 C5 10u 16V C0805 C6 100n C0805 EN LSP10 LSP10 IC1 TLF4277 SSOP 1...

Page 13: ...TLF4277 Demoboard Demoboard Application Note 13 Rev 1 1 2012 04 25 3 7 Board Layout Figure 9 TLF4277 Demoboard V1 1 top layer component placement Figure 10 TLF4277 Demoboard V1 1 top layer...

Page 14: ...TLF4277 Demoboard Demoboard Application Note 14 Rev 1 1 2012 04 25 Figure 11 TLF4277 Demoboard V1 1 bottom layer...

Page 15: ...d is offering limited features allowing you only to evaluate and test the Infineon products The Demoboard is not an end product or finished appliance nor is it intended or authorized by Infineon to be...

Page 16: ...TLF4277 Demoboard Reference Application Note 16 Rev 1 1 2012 04 25 5 Reference 1 TLF4277 Data Sheet...

Page 17: ...y Application Note 17 Rev 1 1 2012 04 25 6 Revision History TLF4277 Demoboard Revision History Rev 1 1 2012 04 25 Previous Version s Rev 1 0 2012 03 12 Page Subjects major changes since last revision...

Page 18: ...RMATION GIVEN IN THIS APPLICATION NOTE Information For further information on technology delivery terms and conditions and prices please contact the nearest Infineon Technologies Office www infineon c...

Reviews:

No comments

Related manuals for TLF4277 Demoboard

Brand: mikroElektronika Pages: 29

EMB-APL1-A10-3350-F1-LV

Brand: Aaeon Pages: 42

Brand: Biostar Pages: 72

Brand: Gigabyte Pages: 44

Brand: MSI Pages: 186

Brand: ST Pages: 22

Brand: BESTEK Pages: 45

Brand: OLIMEX Pages: 13

Brand: EVGA Pages: 14

Brand: ASROCK Pages: 212

Brand: Mach Pages: 86

X99A WORKSTATION

Brand: MSI Pages: 97

Brand: Texas Instruments Pages: 13

Brand: JETWAY Pages: 55

ACT2861EVK1-201

Brand: Active-semi Pages: 19

Brand: Winmate Pages: 72

Brand: Sunny Giken Pages: 123

Brand: Microchip Technology Pages: 41

Brands by name

0 1 2 3 4 5 6 7 8 9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

Popular brands

Load more brands