Datasheet MAX5902, MAX5903 (Maxim) - 6
| Hersteller | Maxim |
| Beschreibung | +72V SOT23/TDFN Simple Swapper Hot-Swap Controllers |
| Seiten / Seite | 14 / 6 — +72V, SOT23/TDFN, Simple Swapper Hot-Swap Controllers. MAX5902/MAX5903 |
| Dateiformat / Größe | PDF / 342 Kb |
| Dokumentensprache | Englisch |
+72V, SOT23/TDFN, Simple Swapper Hot-Swap Controllers. MAX5902/MAX5903
Modelllinie für dieses Datenblatt
- MAX5902AAETT+ MAX5902AAETT+T MAX5902AAEUT MAX5902AAEUT+ MAX5902AAEUT+T MAX5902ABEUT MAX5902ABEUT+ MAX5902ABEUT+T MAX5902ACEUT MAX5902ACEUT+ MAX5902ACEUT+T MAX5902ACEUT+TG11 MAX5902ACEUT-T MAX5902LAETT+ MAX5902LAETT+T MAX5902LAEUT MAX5902LAEUT+ MAX5902LAEUT+T MAX5902LAEUT-T MAX5902LBEUT+ MAX5902LBEUT+T MAX5902LCETT+ MAX5902LCETT+T MAX5902LCEUT MAX5902LCEUT+ MAX5902LCEUT+T MAX5902NNETT+ MAX5902NNEUT MAX5902NNEUT+ MAX5902NNEUT+T
- MAX5903AAETT+ MAX5903AAETT+T MAX5903AAEUT+ MAX5903AAEUT+T MAX5903ABETT+ MAX5903ABETT+T MAX5903ABEUT+ MAX5903ABEUT+T MAX5903ACETT+ MAX5903ACETT+T MAX5903ACEUT+ MAX5903ACEUT+T MAX5903LAEUT+ MAX5903LAEUT+T MAX5903LBEUT+ MAX5903LBEUT+T MAX5903LCEUT+ MAX5903LCEUT+T MAX5903NNETT+ MAX5903NNETT+T MAX5903NNEUT+ MAX5903NNEUT+T
Textversion des Dokuments
+72V, SOT23/TDFN, Simple Swapper Hot-Swap Controllers
MAX5902L/MAX5903L turn off the MOSFET, discon- thermal fault, or an undervoltage shutdown, if the fault necting the load immediately. If no circuit-breaker fault condition goes away for at least 150ms (typ). exists, the MAX5902/MAX5903 assert the power-good ON/OFF offers external control of the MAX5902/ output. Then, if any of four conditions exist, the power- MAX5903, facilitating power-supply sequencing, and good output deasserts and the MAX5902/MAX5903 may also be used to change the undervoltage lockout turn off the MOSFET. The four conditions are: the volt- (UVL) level. UVLO keeps the external MOSFET age across the MOSFET exceeds the circuit-breaker switched off as long as the input voltage is below the threshold; the supply voltage falls below the undervolt- desired level. age lockout level; the die temperature exceeds +125°C; or ON/OFF is forced low. After a circuit-break- A power-good output, PGOOD (MAX5902) or PGOOD er fault, the MAX5902L/MAX5903L keep the MOSFET (MAX5903), asserts when the external MOSFET is fully off until the power is cycled, or the part is reset by tog- enhanced and the source-drain voltage is below the gling ON/OFF low for 10ms (typ). After a circuit-breaker circuit-breaker threshold. PGOOD and PGOOD are fault, the MAX5902A/MAX5903A automatically restarts open-drain outputs referenced to GND, and can with- in 150ms (typ). All versions automatically restart after a stand up to +72V.
MAX5902/MAX5903
SCOPE 50kΩ VS GATE DRAIN SCOPE VS GATE DRAIN V V 0 TO 0.5V IN 48V MAX5902 ON/OFF PGOOD MAX5902A GND ON/OFF PGOOD GND I (a) SUPPLY CURRENT (d) RETRY TIMEOUT SCOPE SCOPE IRFR5410 SCOPE SCOPE VS GATE DRAIN 50kΩ VS GATE DRAIN RL CL 48V V MAX5902 V MAX5902 IN ON/OFF PGOOD GND V ON/OFF PGOOD GND (b) VUVLO (d) STARTUP WAVEFORMS SCOPE 50Ω VS GATE DRAIN SCOPE VS GATE DRAIN V V MAX5902 48V 50kΩ VIN ON/OFF PGOOD MAX5902 GND SCOPE ON/OFF PGOOD GND (b) GATE DRIVE VOLTAGE (d) CIRCUIT-BREAKER EVENT Figure 2. Test Circuits
6 _______________________________________________________________________________________
MAX5902L/MAX5903L turn off the MOSFET, discon- thermal fault, or an undervoltage shutdown, if the fault necting the load immediately. If no circuit-breaker fault condition goes away for at least 150ms (typ). exists, the MAX5902/MAX5903 assert the power-good ON/OFF offers external control of the MAX5902/ output. Then, if any of four conditions exist, the power- MAX5903, facilitating power-supply sequencing, and good output deasserts and the MAX5902/MAX5903 may also be used to change the undervoltage lockout turn off the MOSFET. The four conditions are: the volt- (UVL) level. UVLO keeps the external MOSFET age across the MOSFET exceeds the circuit-breaker switched off as long as the input voltage is below the threshold; the supply voltage falls below the undervolt- desired level. age lockout level; the die temperature exceeds +125°C; or ON/OFF is forced low. After a circuit-break- A power-good output, PGOOD (MAX5902) or PGOOD er fault, the MAX5902L/MAX5903L keep the MOSFET (MAX5903), asserts when the external MOSFET is fully off until the power is cycled, or the part is reset by tog- enhanced and the source-drain voltage is below the gling ON/OFF low for 10ms (typ). After a circuit-breaker circuit-breaker threshold. PGOOD and PGOOD are fault, the MAX5902A/MAX5903A automatically restarts open-drain outputs referenced to GND, and can with- in 150ms (typ). All versions automatically restart after a stand up to +72V.
MAX5902/MAX5903
SCOPE 50kΩ VS GATE DRAIN SCOPE VS GATE DRAIN V V 0 TO 0.5V IN 48V MAX5902 ON/OFF PGOOD MAX5902A GND ON/OFF PGOOD GND I (a) SUPPLY CURRENT (d) RETRY TIMEOUT SCOPE SCOPE IRFR5410 SCOPE SCOPE VS GATE DRAIN 50kΩ VS GATE DRAIN RL CL 48V V MAX5902 V MAX5902 IN ON/OFF PGOOD GND V ON/OFF PGOOD GND (b) VUVLO (d) STARTUP WAVEFORMS SCOPE 50Ω VS GATE DRAIN SCOPE VS GATE DRAIN V V MAX5902 48V 50kΩ VIN ON/OFF PGOOD MAX5902 GND SCOPE ON/OFF PGOOD GND (b) GATE DRIVE VOLTAGE (d) CIRCUIT-BREAKER EVENT Figure 2. Test Circuits
6 _______________________________________________________________________________________