Calculating Junction Temperature Example: Given an output voltage of 3.3V, an input voltage range of 4.5V t0 5.5V, an output current range of OmA to 500mA, and a maximum ambient temperature of 50'fC, what will the maximum junction temperature be? The power dissipated by the device will be equal to: IOUT(MAX) ' (VIN(MAX) - VOUT) + (IGND ' VIN(MAX where, IOUT(MAX) = 500mA VIN(MAX) = 5.5V IGND at (IOUT = 500mA, VIN = 5.5V) = 3.6mA SO, P = 500mA (5.5V - 3.3V) + (3.6mA . 5.5V) = 1.12W
SK201K5J on stock| 88200 #1 DAD31-DADO A31-A2 | Data | 88100 DA31-DA2 CA31-CA2 | Instruction | 88200 #1 A31-A2 CAD31-CADO | ______-_ |
| DADP3-DADPO D31-DO | | D31-DO C31-CO | | D31-DO CADP3-CADPO | _ |
| DC6-DCO S/U | | DS/U CS/U | | S/U CC6-CCO | -- |
| DCP R/W | | DR/W | 1- | CR/W CCP | ______-- |
| DST3-DSTO DLOCK | | DLOCK | 1- | CDLOCK CST3-CSTO | 1_ |
| |
| DSS3-DSSO DBEO DBR DBE1 | | . DBEO CFETCH DBE1 | I | DBEO CSS3-CSSO DBEl CBR | - __1 |
| DBA DBE2 | | DBE2 | I | DBE2 CBA | ______- |
| DBG DBE3 | | DBE3 | T | . DBE3 CBG | 1- |
| |
| DAB DBB DRO | CRO DRO CR1 | T_ | RO CAB Rl CBB | 1- ______- |
| DR1 | T - | DR1 | -{Jl- | CPCS |
| DP~S DTR1 DTRO DTM1 DTMO DERR DPCE DMCE DSRAMMODE CLK RST PLLEN | 1 11 1 1 --- 1 1 1 1 1 | ERR INT PCE CLK RST PLLEN | 111- 1- 1- 1 1- 1 1- 1 1- 1- 1- | CTR1 CTRO CTM1 CTMO CERR CPCE CMCE CSRAMMODE CLK RST PLLEN |
| | | | | l | | l |
| | | | _ | |
| | | |
| | | | | | | | | | | |
| | | t | | | |
| o | 9 i i o 8 Il | | (o rC.J N c _0 t o) | ( N d 2 ' | 'O r C\l C.J r O) t |
| -· | l | LU | | N | |
| J o o | 8 % | > | } | } | |
| | § | ) | | | |
| | > | a) | } | { o, |
| | | | | |
| | | | = | | | |
| Lr' | | = | o | 6 r | o |
| | | | | co LD | |
| | + | ' | = | | | o |
| | | = | | | |
| + | | = | | | |
| | a o § = L | i - C 2 | l i i _ Q_ | |
| ) | | | | |
| | | | | | |
