 |
Electronic Components Datasheet Search |
|
|
Electronic Components Datasheet Search |
|
HCPL-3150 Datasheet(PDF) 13 Page - Agilent(Hewlett-Packard) |
|
||||||||||||||||||||||||||||||
HCPL-3150 Datasheet(HTML) 13 Page - Agilent(Hewlett-Packard) |
|
|
13 / 15 page  1-209 TJE = LED junction temperature TJD = detector IC junction temperature TC = case temperature measured at the center of the package bottom θ LC = LED-to-case thermal resistance θ LD = LED-to-detector thermal resistance θ DC = detector-to-case thermal resistance θ CA = case-to-ambient thermal resistance ∗θ CA will depend on the board design and the placement of the part. CMR with the LED On (CMRH) A high CMR LED drive circuit must keep the LED on during common mode transients. This is achieved by overdriving the LED current beyond the input threshold so that it is not pulled below the threshold during a transient. A minimum LED cur- rent of 10 mA provides adequate margin over the maximum IFLH of 5 mA to achieve 15 kV/ µs CMR. CMR with the LED Off (CMRL) A high CMR LED drive circuit must keep the LED off (VF ≤ VF(OFF)) during common mode transients. For example, during a -dVCM/dt transient in Figure 31, the current flowing through CLEDP also flows through the RSAT and VSAT of the logic gate. As long as the low state voltage developed across the logic gate is less than VF(OFF), the LED will remain off and no common mode failure will occur. The open collector drive circuit, shown in Figure 32, cannot keep the LED off during a +dVCM/dt transient, since all the current flowing through CLEDN must be supplied by the LED, and it is not recommended for applications requiring ultra high CMRL performance. Figure 33 is an alternative drive circuit which, like the recommended application circuit (Figure 25), does achieve ultra high CMR performance by shunting the LED in the off state. Under Voltage Lockout Feature The HCPL-3150 contains an under voltage lockout (UVLO) feature that is designed to protect the IGBT under fault conditions which cause the HCPL-3150 supply voltage (equivalent to the fully-charged IGBT gate voltage) to drop below a level necessary to keep the IGBT in a low resistance state. When the HCPL-3150 output is in the high state and the supply voltage drops below the HCPL-3150 VUVLO- threshold (9.5 <VUVLO- <12.0), the optocoupler output will go into the low state with a typical delay, UVLO Turn Off Delay, of 0.6 µs. When the HCPL-3150 output is in the low state and the supply voltage rises above the HCPL- 3150 VUVLO+ threshold (11.0 < VUVLO+ < 13.5), the optocoupler will go into the high state (assuming LED is “ON”) with a typical delay, UVLO TURN On Delay, of 0.8 µs. IPM Dead Time and Propagation Delay Specifications The HCPL-3150 includes a Propagation Delay Difference (PDD) specification intended to help designers minimize “dead time” in their power inverter designs. Dead time is the time period during which both the high and low side power transistors (Q1 and Q2 in Figure 25) are off. Any overlap in Q1 and Q2 conduction will result in large currents flowing through the power devices from the high- to the low-voltage motor rails. To minimize dead time in a given design, the turn on of LED2 should be delayed (relative to the Figure 28. Thermal Model. θLD = 439°C/W TJE TJD θLC = 391°C/W θDC = 119°C/W θCA = 83°C/W* TC TA |
Similar Part No. - HCPL-3150 |
|
Similar Description - HCPL-3150 |
|
|
|
Link URL |
| Privacy Policy |
| ALLDATASHEET.COM |
| Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Datasheet Upload | Contact us | Privacy Policy | Link Exchange | Manufacturer List All Rights Reserved©Alldatasheet.com |
| Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
|
Family Site : ic2ic.com |
icmetro.com |
English ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
