ISL8106CRZ Intersil, ISL8106CRZ Datasheet

IC PWM CTRLR SGL PHASE 16-QFN

ISL8106CRZ

Manufacturer Part Number
ISL8106CRZ
Description
IC PWM CTRLR SGL PHASE 16-QFN
Manufacturer
Intersil
Datasheet

Specifications of ISL8106CRZ

Pwm Type
Voltage Mode
Number Of Outputs
1
Frequency - Max
600kHz
Voltage - Supply
7 V ~ 25 V
Buck
Yes
Boost
No
Flyback
No
Inverting
No
Doubler
No
Divider
No
Cuk
No
Isolated
No
Operating Temperature
0°C ~ 70°C
Package / Case
16-VQFN Exposed Pad, 16-HVQFN, 16-SQFN, 16-DHVQFN
Frequency-max
600kHz
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Duty Cycle
-

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
ISL8106CRZ
Manufacturer:
Intersil
Quantity:
500
Wide VIN, 7V to 25V, Single-Phase PWM
Controller with Integrated MOSFET
Drivers
The ISL8106 is a Single-Phase Synchronous-Buck PWM
Controller with a input voltage range of +7.0V to +25.0V
featuring Intersil's Robust Ripple Regulator (R
that delivers exceptional dynamic response to input voltage
and output load transients. Integrated MOSFET drivers, 5V
LDO, and bootstrap diode result in fewer components and
smaller implementation area for power supply systems.
The ISL8106 features a 1.5ms digital soft-start and can be
started into a pre-biased output voltage. A resistor divider is
used to program the output voltage setpoint. The ISL8106
can be configured to operate in forced-continuous-
conduction-mode (FCCM) or in diode-emulation-mode
(DEM), which improves light-load efficiency. In FCCM the
controller always operates as a synchronous rectifier,
switching the bottom-side MOSFET regardless of the output
load. With DEM enabled, the bottom-side MOSFET is
disabled preventing negative current flow from the output
inductor during low load operation. This makes the ISL8106
an excellent choice for all “green” applications. An audio
filter prevents the PWM switching frequency from entering
the audible spectrum due to extremely light load while in
DEM.
A PGOOD pin featuring a unique fault-identification
capability significantly reduces system trouble-shooting time
and effort. The pull-down resistance of the PGOOD pin is
30Ω for an overcurrent fault, 60Ω for an overvoltage fault, or
90Ω for either an undervoltage fault or during soft-start.
Overcurrent protection is accomplished by measuring the
voltage drop across the r
MOSFET. A single resistor programs the overcurrent and
short-circuit points. Overvoltage and undervoltage protection
is monitored at the FB voltage feedback pin.
Pinout
FCCM
VCC
VIN
EN
1
2
3
4
16 LD QFN (4mm x 4mm)
16
5
DS(ON)
TOP VIEW
15
6
®
GND
1
14
7
of the bottom-side
13
8
Data Sheet
12
11
10
9
PVCC
BGATE
PGND
BSOC
3
) technology
1-888-INTERSIL or 1-888-468-3774
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
Features
• Wide input voltage range: +7.0V to +25.0V
• High performance R
• +0.6V Internal Reference
• Output voltage range: +0.6V to V
• Selectable forced continuous conduction mode or diode
• Integrated MOSFET drivers with shoot-through protection
• External type-two loop compensation
• Internal 5V low-dropout regulator with Integrated boot-
• Programmable PWM frequency: 200kHz to 600kHz
• PWM minimum frequency above audible spectrum
• Internal digital soft-start with prebiased startup capability
• Power good monitor with fault identification by PGOOD
• Lossless, programmable overcurrent protection
• Undervoltage protection, soft crowbar overvoltage
• Pb-free plus anneal available (RoHS compliant)
Applications
• Telecom/datacom applications
• Industrial applications
• Distributed DC/DC power architecture
• Point-of-load modules
November 10, 2006
transient response
- ±0.6% tolerance over the commercial temperature
- ±1.0% tolerance over the industrial temperature range
emulation mode
strap diode
pull down resistance
- Uses bottom-side MOSFET’s r
protection and over-temperature protection
Range (0°C to +70°C)
(-40°C to +85°C)
All other trademarks mentioned are the property of their respective owners.
|
Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright Intersil Americas Inc. 2006. All Rights Reserved
3
technology delivers extremely fast
DS(ON)
CC
-0.3V
ISL8106
FN9283.1

Related parts for ISL8106CRZ

ISL8106CRZ Summary of contents

Page 1

... CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures. 1-888-INTERSIL or 1-888-468-3774 ISL8106 FN9283.1 3 technology delivers extremely fast -0.3V CC DS(ON) | Intersil (and design registered trademark of Intersil Americas Inc. Copyright Intersil Americas Inc. 2006. All Rights Reserved All other trademarks mentioned are the property of their respective owners. ...

Page 2

... Ordering Information PART NUMBER ISL8106CRZ* ISL8106IRZ* ISL8106EVAL1Z *Add “-T” suffix for tape and reel. NOTE: Intersil Pb-free plus anneal products employ special Pb-free material sets; molding compounds/die attach materials and 100% matte tin plate termination finish, which are 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 ...

Page 3

Block Diagram VIN GND PACKAGE BOTTOM VCC V REF EN − OVP + − UVP + + EA EA − FB COMP − BSOC OCP 30Ω PGOOD LDO PWM FREQUENCY + − + ...

Page 4

... Thermal Information Thermal Resistance (Typical, Notes 1, 2) θ QFN Package . . . . . . . . . . . . . . . . . . . Junction Temperature Range . . . . . . . . . . . . . . . . . -55°C to +150°C Operating Temperature Range ISL8106CRZ 0°C to +70°C ISL8106IRZ . . . . . . . . . . . . . . . . . . . . . . . . . . . . -40°C to +85°C Storage Temperature . . . . . . . . . . . . . . . . . . . . . . . -65°C to +150°C Lead Temperature . . . . . . . . . . . . . . . . . . . . (soldering, 10s)+300°C Recommended Operating Conditions Ambient Temperature Range (ISL8106C 0° ...

Page 5

... V F PVCC = 5V 2mA 25V PGR SS PGOOD = 5mA Sink; ISL8106CRZ PGR UV PGR SS PGOOD = 5mA Sink; ISL8106IRZ PGR UV PGR OV PGOOD = 5mA Sink; ISL8106CRZ PGOOD = 5mA Sink; ISL8106IRZ PGR OC PGOOD = 5mA Sink; ISL8016CRZ PGOOD = 5mA Sink; ISL8106IRZ I PGOOD PGOOD = 5V MIN TYP MAX UNIT 200 ...

Page 6

... The EN pin is the on/off switch of the IC. When the EN pin is pulled above the rising threshold voltage V ramp up and begin regulation. The soft-start sequence begins once V ramps above the power-on reset (POR ISL8106 SYMBOL TEST CONDITIONS High to PGOOD High; ISL8106CRZ EN High to PGOOD High; ISL8106IRZ I OC ISL8106CRZ ISL8106IRZ OVR V OVF T OTR (Note 3) ...

Page 7

PGND (Pin 10) The PGND pin should be connected to the source of the bottom-side MOSFET, preferably with an isolated path that is in parallel with the trace connecting the BGATE pin to the gate of the MOSFET. The PGND ...

Page 8

... VIN pin; the CC LDO has no pull-down capability. Pulse Width Modulator The ISL8106 is a hybrid of fixed frequency PWM control, and variable frequency hysteretic control. Intersil’ ISL8106 can simultaneously affect the PWM switching frequency and PWM duty cycle in response to input voltage and output load transients. The term “ ...

Page 9

MOSFET Gate-Drivers The ISL8106 has internal gate-drivers for the top-side and bottom-side N-Channel MOSFETs. The bottom-side gate- driver is optimized for low duty-cycle applications where the bottom-side MOSFET conduction losses are dominant, requiring a low r MOSFET. The BGATE pulldown ...

Page 10

Where (Ω) is the resistor used to program the over- BSOC current setpoint - I is the current sense current that is sourced from BSOC the BSOC pin - I is the I threshold current value sourced from ...

Page 11

Keep the metal runs from the LX terminals to the output inductor short. The power plane should support the input power and output power nodes. Use copper filled polygons on the top and bottom circuit layers for the LX ...

Page 12

ESR to achieve the required V The inductance of the capacitor can cause a brief voltage dip when the load transient has an extremely high slew rate. Low inductance capacitors constructed with reverse package geometry are ...

Page 13

For the top-side MOSFET, its switching loss can be written as • • • IN VAL ON OSC ( ) ------------------------------------------------------------ - SWTS IN 2 The peak and valley current of the ...

Page 14

... COMP COMP1 COMP2 The Your local Intersil representative can provide a PC- based tool that can be used to calculate compensation network component values and help simulate the loop frequency response. The compensation network consists of the internal error amplifier of the ISL8106 and the external ...

Page 15

... Accordingly, the reader is cautioned to verify that data sheets are current before placing orders. Information furnished by Intersil is believed to be accurate and reliable. However, no responsibility is assumed by Intersil or its subsidiaries for its use; nor for any infringements of patents or other rights of third parties which may result from its use ...

Related keywords