RS95848 REED | Alldatasheet

Document overview

  • Manufacturer or author: Provided By alldatasheet.com(free datasheet download site)
  • PDF pages: 7

Technical content

Features

  • 2.5V to 7.5V Operating Input Range
  • 3.3V VDD supply for internal logic
  • Integrated power stage with High/Low-side MOSFETs and Drivers
  • 80A Max, 40A TDC Output Current
  • Operation Frequency up to 3MHz with 5V VIN
  • Compatible with 3.3V tri-state PWM input
  • Internal Current Sense and Temperature Sense
  • Built in Protection - Vin and VDD/VDRV UVLO - High side Over Current Protection - Cycle-by-cycle Over Current Limit - Over Temperature Protection (OTP)
  • Common Footprint Small Package Size 4x5mm
  • RoHS Compliant and Green

Applications

  • Server and Telecom Voltage Regulators
  • Graphic Card Core Regulators
  • Power Module

Description

The RS95848 is a compact TLGA device measuring 4mm x 5mm, designed for use in Server and Telecom applications that require high efficiency and small size. It is a monolithic half -bridge that includes internal power MOSFETs and gate drivers, enabling it to achieve a continuous output current of 40A over a wide input supply range of 2.5V to 7.5V. The integration of driver and MOSFETs ensures high efficiency by reducing parasitic inductance and optimizing dead time. This device can operate from 100kHz to 3MHz with a 5V input voltage. It is compatible with tri -state output controllers and includes a general -purpose current sense and temperature sense, meeting industry specifications. Typical Application Circuit RS95848 VDRV VDD AGND PWM TMON IMON EN VIN BST SW PGND VIN VOUT PGND

Reed Semiconductor Corp. All rights reserved. Pin Description List Pin Name Pin Number Pin Description Pin Type VIN 2,3,4,19,20,21 Main Input Power Supply. (2.5V-7.5V) Place the input capacitor close to VIN pins to support switching current and reduce the voltage spike at the input. PWR PGND 6,7,16,17,18 Ground. Place multiple Vias to inner solid ground layers to minimize the parasitic impedance and thermal resistance. PWR SW 8,9,10,11,12,13,14,15 Switch (Phase) Node. Drain of the LS FET and Source of HS FET PWR VDRV 1 3.3V input for gate drive power supply. Place a 1µF or greater value ceramic capacitor from this pin to PGND. PWR VDD 30 3.3V input for internal control circuit and gate drive. Place a 1µF or greater value ceramic capacitor from this pin to AGND. PWR AGND 29 Analog Ground PWR BST 23 Bootstrap. Place a 0.1µF to 1 µF ceramic capacitor from BOOT to BSTR. PWR BSTR 22 Return path for HS gate driver. It is connected to the VSW pin internally. PWR PWM 24 PWM signal input pin. I EN 25 Enable signal, active high I IMON 27 Output current monitor – 5μA/A O TMON/FLT 26 Output thermal monitor and fault monitor O NC 5,28 Not connected. PGND PGND VDRV SW VIN EN TMON/FLT VDD AGND IMON BST PWM NC NC PGND PGND PGND BSTR VIN VIN VIN VIN VIN 9 SW 10 SW 11 SW 12 SW 13 SW 14 SW SW

Reed Semiconductor Corp. All rights reserved.

Ordering Information

Part Number Package Shipping Method Package Marking RS95848R TLGA-30 5ku Tape & Reel R95848

Reed Semiconductor Corp. All rights reserved.

Package Information

Reed Semiconductor Corp. All rights reserved. Recommended Land Pattern

Reed Semiconductor Corp. All rights reserved. Tape And Reel Information PKG type(mm) Reel Diamet er(mm) Reel Width W1(mm) A0(mm) B0(mm) K0(mm) P1(mm) W(mm) Quad *All the data is nominal A0 Pocket width B0 Pocket length K0 Pocket thickness W1 Reel Width W Inner width of the carrier tape P1 Pitch between pocket centers

Reed Semiconductor Corp. All rights reserved. Pizza Box Dimension PKG type(mm) Units/box Length(mm) Width(mm) Height(mm) 4x5 5000 358 340 50 *All the data is nominal