IR3595_15 Datasheet, PDF (1/1 Pages) International Rectifier – Digital Multi-Phase Redundant & GPU Controller

Digital Multi-Phase Redundant & GPU Controller
IR3595
FEATURES
DESCRIPTION
 8-phase single or 6+2 dual loop configurable PWM
Controller
 8-bit PVID, PWM VID or I2C setpoint control on
loop 1
 Serial I2C setpoint control on optional loop 2
 Programmable Constant Current Protection
 Dead-phase Protection and Flag
 Min/Max Telemetry registers and real-time
monitoring via I2C (I_IN, V_IN, I_OUT, V_OUT, Temp)
 Programmable 1-phase or 2-phase for Light Loads
and Active Diode Emulation for Very Light Loads
 IR Adaptive Transient Algorithm (ATA) minimizes
output bulk capacitors and system cost
 IR Efficiency Shaping Features including Variable
Gate Drive and Dynamic Phase Control
 Auto-Phase Detection with auto-compensation
 Protection: OVP, UVP, OC Warn, OCP, OT Warn,
OTP
 Multiple Time Programming (MTP) with integrated
charge pump for easy custom configuration
 Compatible with IR ATL and 3.3V tri-state Drivers
 200kHz to 2MHz switching frequency per phase
 +3.3V supply voltage; -40°C to 85°C Ambient
 Pb-Free, Halogen Free, RoHS, 7x7mm, 56-pin,
0.4mm pitch QFN
The IR3595 is an 8-phase digital multi-phase buck
controller that can be configured in either a single
loop or dual loop mode with a feature set optimized
to support redundant power supply systems and
high performance graphic processors.
The IR3595 allows system voltage setpoint
programming either through the 8-bit parallel VID,
nVIDIA’s PWM VID control, or via I2C control.
The IR3595 includes IR’s Efficiency Shaping
Technology which incorporates IR’s Variable Gate
Drive, Dynamic Phase Control (adds/drops phases
based upon load current), and active diode
emulation mode.
IR’s unique and proprietary digital Adaptive
Transient Algorithm (ATA) minimizes output bulk
capacitors and improves transient response.
The I2C interface can communicate with up to 127
IR3595-based VR loops. Device configuration and
fault parameters are easily defined using the IR
Digital Power Design Center (DPDC) GUI and stored
in on-chip MTP. MTP storage saves pins and
enables a small package size.
The IR3595 extensive fault protection includes
output OV, UV and OC protection, 2 thermistor
based OT protection inputs with a VRHOT signal
output, and an Over Current warning flag.
APPLICATIONS
 Supports Phase Redundant based Server systems
 Server & Desktop CPU
 High Performance Graphics Processors
ORDERING INFORMATION
Base Part
Number
IR3595
Package Type
QFN 7 mm x 7 mm
Standard Pack
Form
Quantity
Tape and Reel
3000
Orderable
Part Number
IR3595MxxyyTRP²
IR3595
QFN 7 mm x 7 mm
Tape and Reel
3000
IR3595MTRPBF¹
IR3595
QFN 7 mm x 7 mm
Tray
2600
IR3595MTYPBF¹
Notes:
1. Unprogrammed/blank parts will not start up until programmed in order to ensure a safe power up.
2. Customer Specific Configuration File, where xx = Customer ID and yy = Configuration File (Codes assigned by IR Marketing).
1 www.irf.com | © 2014 International Rectifier
Februray 4, 2014 | V2.04