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Supply Voltage - Max
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Maximum Power Dissipation
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Packaging
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DescriptionThe ISL6208CRZ belongs to the ISL6208, which is a high frequency, dual MOSFET driver,optimized to drive two N-Channel power MOSFETs in asynchronous-rectified buck converter topology. It is especially suited for mobile computing applications thatrequire high efficiency and excellent thermal performance. This driver, combined with an Intersil multiphase Buck PWMcontroller, forms a complete single-stage core-voltage regulator solution for advanced mobile microprocessors. The ISL6208CRZ features 4A typical sinking current for the lowergate driver. This current is capable of holding the lower MOSFET gate off during the rising edge of the Phase node. This prevents shoot-through power loss caused by the highdv/dt of phase voltages. The operating voltage matches the30V breakdown voltage of the MOSFETs commonly used inmobile computer power supplies. The ISL6208CRZ also features a three-state PWM input that,working together with Intersil's multiphase PWM controllers,will prevent negative voltage output during CPU shutdown. This feature of ISL6208CRZ eliminates a protective Schottky diode usuallyseen in a microprocessor power systems. MOSFET gates can be efficiently switched up to 2MHz using the ISL6208CRZ. Each driver is capable of driving a 3000pF load with propagation delays of 8ns and transition times under10ns. Bootstrapping is implemented with an internalSchottky diode. This reduces system cost and complexity,while allowing the use of higher performance MOSFETs. Adaptive shoot-through protection is integrated to preventboth MOSFETs from conducting simultaneously. A diode emulation feature is integrated in the ISL6208 to enhance converter efficiency at light load conditions. This feature of ISL6208CRZ also allows for monotonic start-up into pre-biasedoutputs. When diode emulation is enabled, the driver willallow discontinuous conduction mode by detecting when theinductor current reaches zero and subsequently turning offthe low side MOSFET gate.
The fetures of ISL6208CRZ are (1)dual MOSFET drives for synchronous rectified bridge; (2)adaptive shoot-through protection; (3)0.5Ω on-resistance and 4A sink current capability; (4)supports high switching frequency up to 2MHz(fast output rise and fall time, low propagation delay); (5)three-state pwm input for power stage shutdown; (6)internal bootstrap schottky diode; (7)low bias supply current (5V, 80µA); (8)diode emulation for enhanced light load efficiency and pre-biased startup applications; (9)VCC POR (power-on-reset) feature integrated; (10)low three-state shutdown holdoff time (typical 160ns); (11)pin-to-pin compatible with ISL6207; (12)QFN package: compliant to JEDEC PUB95 MO-220 QFN - quad flat no leads - package outline, near chip scale package footprint, which improves PCB efficiency and has a thinner profile; (13)lead-free available as an option. it can be applicated in core voltage supplies for intel® and AMD® Mobile; microprocessors; high frequency low profile DC-DC converters; high current low output voltage DC-DC converters; high input voltage DC-DC converters.
The absolute maximum ratings of ISL6208CRZ are (1)supply voltage (VCC): -0.3V to 7V; (2)BOOT voltage (VBOOT): -0.3V to 33V; (3)phase voltage (VPHASE) (Note 1): VBOOT - 7V to VBOOT + 0.3V; (4)input voltage (VFCCM, VPWM): -0.3V to VCC + 0.3V; (5)UGATE: VPHASE - 0.3V to VBOOT + 0.3V; (6)LGATE: -0.3V to VCC + 0.3V; (7)ambient temperature range: -40°C to 125°C; (8)ambient temperature range: -10°C to 100°C; (9)maximum operating junction temperature: 125°C; (10)supply voltage, VCC: 5V ±10%; (11)maximum junction temperature (plastic package): 150°C; (12)maximum storage temperature range: -65°C to 150°C; (13)maximum lead temperature (soldering 10s)(SOIC - Lead Tips Only) :300°C. (CAUTION: Stresses above those listed in "Absolute Maximum Ratings" may cause permanent damage to the device. This is a stress only rating and operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied.)
Parameters: | Technical/Catalog Information | ISL6208CRZ |
| Vendor | Intersil |
| Category | Integrated Circuits (ICs) |
| Configuration | High and Low Side, Synchronous |
| Voltage - Supply | 4.5 V ~ 5.5 V |
| Current - Peak | 2A |
| Delay Time | 20ns |
| Package / Case | 8-QFN |
| Packaging | Tube |
| Number of Outputs | 2 |
| Input Type | PWM |
| Number of Configurations | 1 |
| Operating Temperature | -10°C ~ 100°C |
| High Side Voltage - Max (Bootstrap) | 33V |
| Lead Free Status | Lead Free |
| RoHS Status | RoHS Compliant |
| Other Names | ISL6208CRZ
ISL6208CRZ
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ISL6208CRZ Data Sheet
