ISL68137IRAZT7AR5781 数据手册
DATASHEET
ISL68137
Digital Dual Output, 7-Phase Configurable PWM Controller with Adaptive Voltage
Scaling Bus (AVSBus)
The ISL68137 is a digital dual output, flexible multiphase
(X+Y ≤ 7) PWM controller with Adaptive Voltage Scaling Bus
(AVSBus) interface. The ISL68137 can be configured to
support any desired phase assignments up to a maximum of
seven phases across the two outputs (X+Y). For example, 6+1,
5+2, 4+2, 3+3, 3+2, or even a single output as a 7+0
configuration are supported. The flexible phase arrangement,
combined with PMBus and AVSBus interfaces, allows the
device to support any demanding power supply requirement.
The ISL68137 with AVSBus complements PMBus by providing
a common interface that accelerates point-to-point
communication between the controller and the load to
statically and dynamically control the processor voltage, thus
delivering a balanced and power-efficient solution. AVSBus can
be used exclusively after the device is configured using PMBus.
The ISL68137 uses Intersil’s proprietary linear synthetic digital
current modulation scheme to achieve the industry’s best
combination of transient response and ease of tuning, while
addressing the challenges of modern multiphase designs.
Device configuration and telemetry monitoring is
accomplished using Intersil's intuitive PowerNavigator™ GUI.
The ISL68137 device supports on-chip nonvolatile memory to
store various configuration settings that are user selectable
through pin-strap, giving system designers increased power
density to configure and deploy multiple configurations. The
device supports an automatic phase add/drop feature to allow
maximum efficiency across all load ranges. Thresholds for
automatic phase add/drop are user programmable using the
powerful PowerNavigator GUI.
The ISL68137 supports a comprehensive fault management
system to enable the design of highly reliable systems. From a
multitiered overcurrent protection scheme, to the configurable
power-good and output overvoltage/undervoltage fault
thresholds and temperature monitoring, almost any need is
accommodated.
With minimal external components, easy configuration, robust
fault management, and highly accurate regulation capability,
implementing a high-performance multiphase regulator has
never been easier.
Applications
• Networking equipment
• Telecom and datacom equipment
• Server and storage equipment
• Point-of-load power supply (Memory, DSP, ASIC, FPGA)
FN8757 Rev.1.00
Jun 26, 2017
FN8757
Rev.1.00
Jun 26, 2017
Features
• PMBus 1.3 and AVSBus compliant
- Telemetry - VIN, VOUT, IOUT, power IN/OUT, temperature,
and various fault status registers
- Individual AVSBus interface enables high speed voltage
changes
• Advanced linear digital modulation scheme
- Zero latency synthetic current control for excellent HF
current balance
- Dual-edge modulation for fastest transient response
• Auto phase add/drop for excellent load vs efficiency profile
• Flexible phase configuration
- 7+0, 6+1, 5+2, 4+3 phase operation
- Operation using less than seven phases between two
outputs is also supported
• Diode braking for overshoot reduction
• Differential remote voltage sensing supports ±0.5% closed
loop system accuracy over load, line, and temperature
• Highly accurate current sensing for excellent load-line
regulation and accurate OCP
- Supports ISL99227 60A smart power stages
- Supports DCR sense with integrated temperature
compensation
• Supports phase doubler (ISL6617A) for up to 14-phase
operation
• Comprehensive fault management enables high reliability
systems
- Pulse-by-pulse phase current limiting
- Total output current protection
- Output and input OV/UV
- Open voltage sense detect
- Black box recording capability for faults
• Intuitive configuration using the PowerNavigator GUI
- NVM to store up to eight configurations
• Pb-free (RoHS compliant)
Related Literature
• For a full list of related documents, visit our website
- ISL68137 product page
Page 1 of 54
ISL68137
Table of Contents
Ordering Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Pin Configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Functional Pin Descriptions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Driver, DrMOS, and Smart Power Stage Recommendation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Internal Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Typical Application: 6+1 Configuration with ISL99227 SPS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Typical Application: 4+3 Configuration with ISL99227 SPS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Typical Application: 5+2 Configuration with DCR Sensing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Typical Application: Phase Doubler . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Absolute Maximum Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Thermal Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Recommended Operating Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Electrical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Typical Performance Curves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
PWM Modulation Scheme . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
PMBus Address Selection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Phase Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Automatic Phase Add and Drop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Output Voltage Configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Switching Frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Current Sensing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Temperature Sensing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Temperature Compensation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Lossless Input Current and Power Sensing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Voltage Regulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Current Feedback . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power-On Reset (POR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Soft-Start Delay and Ramp Times . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Stored Configuration Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
13
13
13
13
13
13
14
14
14
15
16
16
17
17
17
17
17
Fault Monitoring and Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power-Good Signals. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Output Voltage Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Output Current Protection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Smart Power Stage OC Fault Detect . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Thermal Monitoring and Protection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
17
18
18
18
20
20
Layout and Design Considerations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
PMBus Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
PMBus Protocol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
PMBus Command Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
PMBus Use Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
PMBus Data Formats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
PMBus Command Detail . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
OT_FAULT_LIMIT (4Fh) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Adaptive Voltage Scaling (AVSBus) Functionality and Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
AVSBus Master Send Subframe. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
AVSBus Slave Response Subframe. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
AVSBus Command Detail . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Revision History. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
About Intersil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Package Outline Drawing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
FN8757 Rev.1.00
Jun 26, 2017
Page 2 of 54
ISL68137
Ordering Information
PART NUMBER
(Notes 1, 2, 3)
ISL68137IRAZ
PART
MARKING
TEMP. RANGE
(°C)
ISL68137 IRZ
PACKAGE
(RoHS COMPLIANT)
-40 to +85
PKG.
DWG. #
48 Ld 6x6 QFN
L48.6x6B
NOTES:
1. Add “-T” suffix for 4k unit or “-T7A” suffix for 250 unit tape and reel options. Refer to TB347 for details on reel specifications.
2. These Intersil Pb-free plastic packaged products employ special Pb-free material sets, molding compounds/die attach materials and 100% matte tin
plate plus anneal (e3 termination finish, which is RoHS compliant and compatible with both SnPb and Pb-free soldering operations). Intersil Pb-free
products are MSL classified at Pb-free peak reflow temperatures that meet or exceed the Pb-free requirements of IPC/JEDEC J STD-020.
3. For Moisture Sensitivity Level (MSL), see the product information page for ISL68137. For more information on MSL, see TB363.
TABLE 1. KEY DIFFERENCES BETWEEN FAMILY OF PARTS
PART NUMBER
PHASE CONFIGURATION
OUTPUT X/OUTPUT Y
SPECIFICATION SUPPORTED
PACKAGE
ISL68137
X+Y ≤ 7
PMBus/AVSBus
QFN 48 Ld, 6x6mm
ISL68134
X+Y ≤ 4
PMBus/AVSBus
TQFN 40 Ld, 5x5mm
ISL68127
X+Y ≤ 7
PMBus
QFN 48 Ld, 6x6mm
ISL68124
X+Y ≤ 4
PMBus
TQFN 40 Ld, 5x5mm
Pin Configuration
DNC
DNC
DNC
TMON1
TMON0
VCCS
VCC
SA
VSEN0
RGND0
CS0
CSRTN0
ISL68137
(48 LD QFN)
TOP VIEW
48
47
46
45
44
43
42
41
40
39
38
37
PWM0
1
36
CS1
PWM1
2
35
CSRTN1
PWM2
3
34 CS2
PWM3
4
33
CSRTN2
PWM4
5
32
CS3
PWM5
6
31 CSRTN3
GND
(EPAD)
PWM6
7
AVS_CLK
8
29 CSRTN4
AVS_SDA
9
28 CS5
30 CS4
AVS_MDA 10
27 CSRTN5
26 CS6
AVS_VDDIO 11
25 CSRTN6
FN8757 Rev.1.00
Jun 26, 2017
13
14
15
16
17
18
19
20
21
22
23
24
EN0
EN1
TWARN
PG0
PG1
SCL
SDA
SALRT
CONFIG
VINSEN
VSEN1
RGND1
DNC 12
Page 3 of 54
ISL68137
Functional Pin Descriptions
Refer to Table 4 on page 21 for design layout considerations.
PIN NUMBER
PIN NAME
7, 6, 5, 4, 3, 2, 1
PWM[6:0]
Pulse width modulation outputs. Connect these pins to the PWM input pins of 3.3V logic compatible Intersil
smart power stages, driver IC(s), or power stages.
8
AVS_CLK
AVSBus clock input pin. Connect to ground if not used.
9
AVS_SDA
AVSBus data output pin. Leave open if not used.
10
AVS_MDA
AVSBus data input pin. Connect to ground if not used.
11
AVS_VDDIO
12, 46, 47, 48
DNC
Do not connect any signals to these pins.
13
EN0
Input pin used for enable control of Output 0. Active high. Connect to ground if not used.
14
EN1
Input pin used for enable control of Output 1. Active high. Connect to ground if not used.
15
TWARN
16
PG0
Open-drain, power-good indicators for Output 0. Maximum pull-up voltage is VCC.
17
PG1
Open-drain, power-good indicators for Output 1. Maximum pull-up voltage is VCC.
18
SCL
Serial clock signal pin for SMBus interface. Maximum pull-up voltage is VCC.
19
SDA
Serial data signal pin for SMBus interface. Maximum pull-up voltage is VCC.
20
SALRT
Serial alert signal pin for SMBus interface. Maximum pull-up voltage is VCC.
21
CONFIG
Configuration ID selection pin. See Table 3 for more details.
22
VINSEN
Input voltage sense pin. Connect to VIN through a resistor divider (typically 40.2k/10k) with a 10nF decoupling
capacitor.
23
VSEN1
Positive differential voltage sense input for Output 1. Connect to positive remote sensing point. Connect to
ground if not used.
24
RGND1
Negative differential voltage sense input for Output 1. Connect to negative remote sensing point. Connect to
ground if not used.
25, 27, 29, 31,
33, 35, 37
CSRTN[6:0]
26, 28, 30, 32,
34, 36, 38
CS[6:0]
The CS and CSRTN pins are current sense inputs to individual phase differential amplifiers. Unused phases
should have their respective current sense inputs grounded. The ISL68137 supports smart power stage, DCR,
and resistor sensing. Connection details depend on current sense method chosen.
39
RGND0
Negative differential voltage sense input for Output 0. Connect to negative remote sensing point. Connect to
ground if not used.
40
VSEN0
Positive differential voltage sense input for Output 0. Connect to positive remote sensing point. Connect to
ground if not used.
41
SA
PMBus Address selection pin. See Table 2 on page 13 for more details.
42
VCC
Chip primary bias input. Connect this pin directly to a +3.3V supply with a high quality MLCC bypass capacitor.
43
VCCS
Internally generated 1.2V LDO logic supply from VCC. Decouple with 4.7µF or greater MLCC (X5R or better).
44
TMON0
Input pin for external temperature measurement at Output 0. Supports diode based temperature sensing as well
as smart power stage sensing. Refer to section “Temperature Compensation” on page 16 for more information.
45
TMON1
Input pin for external temperature measurement at Output 1. Supports diode based temperature sensing as well
as smart power stage sensing. Refer to section “Temperature Compensation” on page 16 for more information.
EPAD
GND
FN8757 Rev.1.00
Jun 26, 2017
DESCRIPTION
AVSBus reference voltage input pin. Leave open if not used.
Thermal warning flag. This open-drain output will be pulled low in the event of a sensed over-temperature at
TMON pins without disabling the regulators. Maximum pull-up voltage is VCC.
Package pad serves as GND return for all chip functions. Connect directly to system GND plane with multiple
thermal vias.
Page 4 of 54
ISL68137
Driver, DrMOS, and Smart Power Stage Recommendation
INTERSIL PART
NUMBER
QUIESCENT CURRENT
(mA)
GATE DRIVE
VOLTAGE (V)
NUMBER OF
DRIVERS
ISL99227
4.85
5
Single
60A, 5x5 smart power stage
ISL99140
0.19
5
Single
40A, 6x6 DrMOS
ISL6596
0.19
5
Single
Connect ISL6596 VCTRL to 3.3V
ISL6617A
5
N/A
N/A
COMMENTS
Phase doubler with 5V PWM output to be compatible with a 60A DrMOS or
with 60A smart power stage. Supports up to a 14-phase design.
Internal Block Diagram
CS0
CYCLECYCLE OCP
ADC
CSRTN0
CS1
CSRTN1
CS2
CSRTN2
CS3
CSRTN3
CS4
CSRTN4
CS5
CSRTN6
CS6
CSRTN6
ADC
CYCLECYCLE OCP
ADC
CYCLECYCLE OCP
ADC
CYCLECYCLE OCP
ADC
CYCLECYCLE OCP
ADC
CYCLECYCLE OCP
ADC
CYCLECYCLE OCP
ISUM-0
SUMMED
OCP
PG0
STATUS
MANAGER
PG1
TWARN
EN0
LOOP
MANAGER
EN1
CONFIG
CPU
SA
NVM
BLACKBO X
RGND0
ADC
VSA
SUMMED
OCP
OV
CURRENT
AC FB
VDROOP
VSE N1
RGND1
VSA
ADC
UV
+
+
PID
OV
VINSEN
UV
+
+
TMO N0
TMO N1
ADC
VCC
PWM0
DIG ITAL DUAL
EDGE
MODULATOR
PID
DIG ITAL DUAL
EDGE
MODULATOR
PMBus
INTERFACE
PWM3
PWM4
PWM5
SCL
SDA
SALRT
AVS_CLK
AVSBus
INTERFACE
VCCS
PWM2
PWM6
FAULT AND
TELEMETRY
MANAGER
LDO
PWM1
PHASE MANAGER
VSE N0
ISUM-1
CURRENT
AC FB
VDROOP
AVS_MDA
AVS_SDA
AVS_VDDIO
FIGURE 1. INTERNAL BLOCK DIAGRAM
FN8757 Rev.1.00
Jun 26, 2017
Page 5 of 54
ISL68137
Typical Application: 6+1 Configuration with ISL99227 SPS
RGND0
VSEN0
1k
EN0
VCCS
PG0
4.7µF
100
TMON0
3.3V
ISL99227
VCC
4.7µF
TMON
PWM
470pF
PWM0
CS0
CSRTN0
100
0.1µF
470pF
IMON
REFIN
5V
VIN
BOOT
0.1µF
2x22µF
12V
PHASE
FAULT#
12V
GND SW
ISL99227
40.2k
TMON
VINSEN
PWM1
10k
PVCC
VCC
0.01µF
100
CS1
CSRTN1
PWM
0.1µF
470pF
IMON
REFIN
PVCC
VCC
COUT
VIN
BOOT
VOUT0
5V
12V
0.1µF
2x22µF
PHASE
FAULT#
ISL68137
GND SW
ISL99227
TMON
PWM2
CS2
CSRTN2
PWM
100
0.1µF
470pF
REFIN
5V
VIN
BOOT
0.1µF
2x22µF
12V
PHASE
AVS_CLK
FAULT#
AVS_SDA
GND SW
ISL99227
AVS_MDA
AVS_VDDIO
IMON
PVCC
VCC
TMON
PWM3
CS3
CSRTN3
PWM
100
0.1µF
470pF
IMON
REFIN
PVCC
VCC
5V
VIN
BOOT
0.1µF
2x22µF
12V
PHASE
FAULT#
GND SW
ISL99227
TMON
PWM4
CS4
TWARN
CSRTN4
PWM
100
0.1µF
470pF
VIN
BOOT
12V
0.1µF
2x22µF
VOUT1
FAULT#
COUT
GND SW
ISL99227
SDA
SA
REFIN
5V
PHASE
SCL
SALRT
IMON
PVCC
VCC
PWM5
CS5
CSRTN5
TMON
PWM
100
0.1µF
470pF
IMON
REFIN
TMON1
PWM6
CS6
CSRTN6
5V
12V
VIN
BOOT
0.1µF
2x22µF
PHASE
FAULT#
CONFIG
PVCC
VCC
GND SW
ISL99227
TMON
PWM
470pF
100
470pF
IMON
0.1µF
REFIN
PVCC
VCC
5V
VIN
BOOT
0.1µF
2x22µF
12V
PHASE
FAULT#
GND SW
PG1
1k
EN1
RGND1
VSEN1
FIGURE 2. TYPICAL APPLICATION: 6+1 CONFIGURATION WITH ISL99227 SPS
FN8757 Rev.1.00
Jun 26, 2017
Page 6 of 54
ISL68137
Typical Application: 4+3 Configuration with ISL99227 SPS
RGND0
VSEN0
1k
EN0
VCCS
PG0
4.7µF
100
TMON0
ISL99227
VCC
3.3V
4.7µF
PWM0
CS0
CSRTN0
TMON
PWM
470pF
100
0.1µF
470pF
IMON
REFIN
5V
PVCC
VCC
VIN
BOOT
0.1µF
2x22µF
12V
PHASE
FAULT#
12V
GND SW
ISL99227
40.2k
TMON
VINSEN
PWM1
10k
0.01µF
CS1
CSRTN1
PWM
100
0.1µF
470pF
IMON
REFIN
5V
PVCC
VCC
12V
VIN
BOOT
0.1µF
2x22µF
PHASE
FAULT#
ISL68137
GND
SW
ISL99227
TMON
PWM2
CS2
PWM
100
0.1µF
CSRTN2
IMON
REFIN
470pF
12V
VIN
BOOT
VOUT0
COUT
0.1µF
2x22µF
PHASE
AVS_CLK
FAULT#
AVS_SDA
GND
SW
ISL99227
AVS_MDA
AVS_VDDIO
5V
PVCC
VCC
TMON
PWM3
100
CS3
CSRTN3
PWM
0.1µF
470pF
IMON
REFIN
5V
PVCC
VCC
VIN
BOOT
0.1µF
2x22µF
12V
PHASE
FAULT#
GND
SW
ISL99227
TMON
PWM4
CS4
TWARN
CSRTN4
PWM
100
0.1µF
470pF
0.1µF
2x22µF
12V
GND
SW
ISL99227
SDA
SA
VIN
BOOT
PHASE
FAULT#
SCL
SALRT
IMON
REFIN
5V
PVCC
VCC
PWM5
CS5
CSRTN5
TMON
PWM
100
0.1µF
470pF
IMON
REFIN
TMON1
CSRTN6
0.1µF
2x22µF
GND
SW
ISL99227
CONFIG
CS6
12V
VIN
BOOT
VOUT1
COUT
PHASE
FAULT#
PWM6
5V
PVCC
VCC
TMON
PWM
470pF
100
470pF
IMON
0.1µF
REFIN
5V
PVCC
VCC
12V
VIN
BOOT
0.1µF
2x22µF
PHASE
FAULT#
GND
SW
PG1
1k
EN1
RGND1
VSEN1
FIGURE 3. TYPICAL APPLICATION: 4+3 CONFIGURATION WITH ISL99227 SPS
FN8757 Rev.1.00
Jun 26, 2017
Page 7 of 54
ISL68137
Typical Application: 5+2 Configuration with DCR Sensing
RGND0
VSEN0
1k
EN0
VCCS
PG0
0.1µF
PWM0
EN
THDN
BOOT
PHASE
PWM
VCC
3.3V
PVCC
VCC
ISL99140
GND
5V
VIN
2x22µF
12V
SW
CS0
4.7µF
CSRTN0
TMON0
12V
40.2k
0.1µF
VINSEN
10k
PWM1
0.01µF
EN
THDN
BOOT
PHASE
PWM
PVCC
VCC
ISL99140
GND
5V
VIN
2x22µF
12V
VOUT0
COUT
SW
CS1
CSRTN1
ISL68137
0.1µF
PWM2
EN
THDN
BOOT
PHASE
PWM
PVCC
VCC
ISL99140
GND
5V
VIN
2x22µF
12V
SW
CS2
CSRTN2
AVS_SDA
AVS_MDA
AVS_VDDIO
0.1µF
PWM3
EN
THDN
BOOT
PHASE
PWM
5V
PVCC
VCC
AVS_CLK
ISL99140
GND
VIN
12V
2x22µF
SW
CS3
CSRTN3
0.1µF
TWARN
PWM4
EN
THDN
BOOT
PHASE
PWM
5V
PVCC
VCC
ISL99140
GND
VIN
12V
2x22µF
SW
CS4
SCL
COUT
CSRTN4
SDA
SALRT
0.1µF
SA
PWM5
EN
THDN
BOOT
PHASE
PWM
5V
PVCC
VCC
ISL99140
GND
VOUT1
VIN
12V
2x22µF
SW
CS5
CSRTN5
CONFIG
0.1µF
PWM6
EN
THDN
BOOT
PHASE
PWM
5V
PVCC
VCC
ISL99140
GND
VIN
12V
2x22µF
SW
CS6
CSRTN6
PG1
1k
EN1
TMON1
RGND1
VSEN1
FIGURE 4. TYPICAL APPLICATION: 5+2 CONFIGURATION WITH DCR SENSING
FN8757 Rev.1.00
Jun 26, 2017
Page 8 of 54
ISL68137
Typical Application: Phase Doubler
VCCS
4.7µF
RGND0
EN0
PG0
100
VSEN 0
ISL99227B
TMON0
PWM
IMON
VCC
3.3V
PVCC
VCC
LGCTRL
4.7µF
CSRTN0
470pF
TMON
ISL6617A
5V
0.1µF
PWMIN
IOUT
BOOT
12V
0.1µF
2x22µF
PHASE
SW
GND
0.1µF
CSRTNA
EN_SYNC
PWM0
40.2k
FAULT#
PWMA
CSENA
VCC
12V
VIN
REFIN
CS0
5V
GND
ISL99227B
PWMB
CSENB
PWM
CSRTNB
PVCC
VCC
LGCTRL
IMON
VINSEN
VIN
REFIN
10k
TMON
FAULT#
0.01µF
5V
BOOT
12V
0.1µF
2x22µF
PHASE
SW
GND
0.1µF
ISL99227B
PWM
PVCC
VCC
LGCTRL
VIN
IMON
REFIN
CS1
CSRTN1
470pF
TMON
ISL6617A
5V
0.1µF
EN_SYNC
PWMIN
IOUT
BOOT
12V
0.1µF
2x22µF
PHASE
GND
SW
0.1µF
CSRTNA
VCC
PWM1
FAULT#
PWMA
CSENA
5V
GND
ISL99227B
PWMB
CSENB
PWM
CSRTNB
PVCC
VCC
LGCTRL
IMON
REFIN
TMON
FAULT#
5V
VIN
BOOT
12V
0.1µF
2x22µF
PHASE
GND
SW
0.1µF
CS2
CSRTN2
PWM2
CS3
CSRTN3
PWM3
ISL68137
CS4
CSRTN4
PWM4
ISL99227B
PWM
TWARN
REFIN
CSRTN5
470pF
AVS_SDA
AVS_MDA
AVS_VDDIO
TMON
ISL6617A
5V
0.1µF
EN_SYNC
PWMIN
IOUT
BOOT
12V
0.1µF
2x22µF
PHASE
GND
SW
0.1µF
CSRTNA
VCC
PWM5
FAULT#
PWMA
CSENA
5V
VIN
IMON
CS5
AVS_CLK
PVCC
VCC
LGCTRL
GND
ISL99227B
PWMB
CSENB
PWM
CSRTNB
PVCC
VCC
LGCTRL
VIN
IMON
REFIN
TMON
FAULT#
5V
BOOT
12V
0.1µF
2x22µF
VOUT 1
COUT
PHASE
GND
SW
0.1µF
SCL
ISL99227B
SDA
PWM
SALRT
SA
REFIN
470pF
FAULT#
PWMA
CSENA
0.1µF
EN_SYNC
PWMIN
IOUT
12V
0.1µF
2x22µF
PHASE
GND
SW
0.1µF
GND
ISL99227B
PWMB
CSENB
PWM
CSRTNB
PVCC
VCC
LGCTRL
IMON
REFIN
TMON
TMON1
470pF
PG1
BOOT
CSRTNA
VCC
PWM6
TMON
ISL6617A
5V
5V
VIN
IMON
CS6
CSRTN6
CONFIG
PVCC
VCC
LGCTRL
FAULT#
5V
VIN
BOOT
12V
0.1µF
2x22µF
PHASE
GND
SW
0.1µF
1k
EN1
RGND1
VSEN 1
FIGURE 5. TYPICAL APPLICATION: PHASE DOUBLER
FN8757 Rev.1.00
Jun 26, 2017
Page 9 of 54
ISL68137
Absolute Maximum Ratings
Thermal Information
VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +4.3V
VCCS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +1.6V
All Other Pins . . . . . . . . . . . . . . . . . . . . . . . . . . . . (GND - 0.3V) to VCC + 0.3V
ESD Rating:
Human Body Model (Tested per JS-001-2014) . . . . . . . . . . . . . . . . . . 2kV
Charged Device Model (Tested per JS-002-2014) . . . . . . . . . . . . . . . 1kV
Latch-Up (Tested per JESD-78E; Class 2, Level A). . . . . . . . . . . . . . . 100mA
Thermal Resistance (Notes 4, 5)
JA (°C/W) JC (°C/W)
48 Ld 6x6 QFN Package . . . . . . . . . . . . . . .
27
1
Maximum Junction Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . .+150°C
Maximum Storage Temperature Range . . . . . . . . . . . . . .-65°C to +150°C
Pb-Free Reflow Profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . see TB493
Recommended Operating Conditions
Supply Voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +3.3V ±5%
Ambient Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -40°C to +85°C
Output Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0V to 3.05V
CAUTION: Do not operate at or near the maximum ratings listed for extended periods of time. Exposure to such conditions may adversely impact product
reliability and result in failures not covered by warranty.
NOTES:
4. JA is measured in free air with the component mounted on a high-effective thermal conductivity test board with “direct attach” features. See TB379.
5. For JC, the “case temp” location is the center of the exposed metal pad on the package underside.
Electrical Specifications
Recommended operating conditions, VCC = 3.3V, unless otherwise specified. Boldface limits apply across the
operating temperature range -40°C to +85°C.
PARAMETER
TEST CONDITIONS
MIN
(Note 7)
TYP
MAX
(Note 7)
UNIT
VCC SUPPLY CURRENT
Nominal Supply Current
VCC = 3.3VDC; EN1/2 = VIH, fSW = 400kHz
90.5
mA
Shutdown Supply Current
VCC = 3.3VDC; EN1/2 = 0V, no switching
11.4
mA
VCCS LDO SUPPLY
Output Voltage
Maximum Current Capability
1.20
Excluding internal load
1.25
1.30
50
V
mA
POWER-ON RESET AND INPUT VOLTAGE LOCKOUT
VCC Rising POR Threshold
2.7
2.9
V
VCC Falling POR Threshold
1.0
V
Enable (EN0 and EN1) Input High Level
2.55
V
Enable (EN0 and EN1) Input Low Level
0.8
Enable (EN0 and EN1) LOW to HIGH Ramp Delay
(TON_DELAY)
200
POR to Initialization Complete Time
V
µs
30
40
ms
0.25
3.05
V
Set-point 0.8V to 3.05V
-0.5
0.5
%
Set-point 0.25V to
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