DATASHEET
Smart Power Stage (SPS) Module with Integrated High
Accuracy Current and Temperature Monitors
ISL99227, ISL99227B Features
The ISL99227, ISL99227B are Smart Power Stages (SPS) Input range: +4.5V to +18V
compatible with Intersils ISL68xxx/69xxx Digital Multiphase
Supports 60A DC current
(DMP) controllers and phase doubler (ISL6617A), respectively.
ISL99227 with 3.3V compatible tri-state PWM input
The ISL99227, ISL99227B have integrated high accuracy
current and temperature monitors that can be fed back to the
ISL99227B with 5.0V compatible tri-state PWM input
controller and doubler to complete a multiphase DC/DC
Downslope current sensing
system. They simplify design and increase performance by
3% accuracy current monitor (IMON) with REFIN input
eliminating the DCR sensing network and associated thermal
compensation. Light-load efficiency is supported via a
8mV/C temperature monitor with OT flag
dedicated LFET control pin. An industry leading thermally
Dedicated low-side FET control input
enhanced 5x5 PQFN package allows minimal overall PCB real
Comprehensive fault protection for high system reliability
estate.
- High-side FET short and overcurrent protection
The ISL99227, ISL99227B feature a 3.3V compatible, 5.0V
- Over-temperature protection
compatible tri-state PWM input that, working together with
-V and V Undervoltage Lockout (UVLO)
Intersils multiphase PWM controllers, will provide a robust
CC IN
solution in the event of abnormal operating conditions. The
Open-drain fault reporting output
ISL99227, ISL99227B also improve system performance and
Up to 2MHz switching frequency
reliability with integrated fault protection of UVLO,
over-temperature and overcurrent. An open-drain fault
Pb-free (RoHS compliant), 32 Ld 5x5 PQFN
reporting pin simplifies the handshake between SPS and
Intersil controllers and can be used to disable the controller
Applications
during start-up and fault conditions.
High frequency and high efficiency VRM and VRD
Core, graphic and memory regulators for microprocessors
Related Literature
High density VR for server, networking and cloud computing
TB363 Guidelines for Handling and Processing Moisture
Sensitive Surface Mount Devices (SMDs)
POL DC/DC converters and video gaming consoles
+12V
+5V
VCC BOOT PHASE
PVCC VIN
LGCTRL
SHOOT-
PWM
THROUGH
PWM
L
OUT
V
PROTECTION OUT
IMON
SW
CS#n
ISL68xxx/ REFIN
CSRTN#n
PVCC
ISL69xxx
TMON
SMART
TEMP
CONTROLLER
FAULT#
CONTROL
EN
C
OUT
ISL99227
GND GND
GND
FIGURE 1. ISL99227 SIMPLIFIED APPLICATION BLOCK DIAGRAM
October 27, 2016 CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1
1-888-INTERSIL or 1-888-468-3774 | Copyright Intersil Americas LLC 2016. All Rights Reserved
FN8684.2
Intersil (and design) is a trademark owned by Intersil Corporation or one of its subsidiaries.
All other trademarks mentioned are the property of their respective owners.ISL99227, ISL99227B
Typical Application Circuit with ISL99227
+3.3V
VCCS
ISL99227
VCCS VCC
5V VCC PVCC 5V
5V LGCTRL VIN VIN
FAULT#
BOOT
TEMPVCORE TMON PHASE
VSENVCORE
PWM SW
PWM1
RGNDVCORE
CS1 IMON
ENVCORE
CSRTN1 REFIN GND
PGVCORE
ISL99227
ISL69127 5V VCC PVCC 5V
5V LGCTRL VIN VIN
FAULT#
BOOT
VCORE
TMON
SVDATA PHASE
PWM SW
SVCLK PWM2
IMON
CS2
nSVALERT
CSRTN2 REFIN GND
nVRHOT
nPINALERT
PWM3-5
N PHASES
PMSDA
CS3-5
PMSCL
CSRTN3-5
nPMALERT
ISL99227
5V VCC PVCC 5V
5V LGCTRL VIN VIN
CFP
FAULT# BOOT
TMON PHASE
PWM SW
PWM6
VIN
CS6 IMON
CSRTN6 REFIN GND
VINSEN
ISL99227
5V VCC PVCC 5V
5V LGCTRL VIN VIN
FAULT#
BOOT
PGVSA
TEMPVSA TMON PHASE
ENVSA PWM SW
PWMVSA
IMON
CSVSA
RGNDVSA
CSRTNVSA REFIN GND
VSENVSA
VSA
VCCS
GND ADDRESS CONFIG
FIGURE 2. TYPICAL APPLICATION CIRCUIT WITH ISL99227 (ISL99227B 5V PWM IS NOT COMPATIBLE WITH ISL69127)
Submit Document Feedback FN8684.2
2
October 27, 2016