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ISL62381 の電気的特性と機能

ISL62381のメーカーはIntersilです、この部品の機能は「Quad or Triple-Output System Power Supply Controller」です。


製品の詳細 ( Datasheet PDF )

部品番号 ISL62381
部品説明 Quad or Triple-Output System Power Supply Controller
メーカ Intersil
ロゴ Intersil ロゴ 




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ISL62381 Datasheet, ISL62381 PDF,ピン配置, 機能
ISL62381, ISL62382, ISL62383, ISL62381C,
ISL62382C, ISL62383C
Data Sheet
October 23, 2015
FN6665.6
High-Efficiency, Quad or Triple-Output
System Power Supply Controller for
Notebook Computers
The ISL62381, ISL62382, ISL62383, ISL62381C, ISL62382C
and ISL62383C family of controllers generate supply voltages
for battery-powered systems. These controllers include two
pulse-width modulation (PWM) controllers, adjustable from
0.6V to 5.5V, and two linear regulators, LDO5 and LDO3, that
generate a fixed 5V and an adjustable output respectively, and
each can deliver up to 100mA. The ISL62383 and ISL62383C
have the same outputs as the ISL62381, ISL62382, ISL62381C
and ISL62382C but without LDO3 linear regulator. The channel
2 switching regulator will automatically take over the LDO5 load
when programmed to 5V output. This provides a large power
savings and boosts efficiency. These controllers include on-
board power-up sequencing, two power-good (PGOOD)
outputs, digital soft-start, and internal soft-stop output discharge
that prevent negative voltages on shutdown.
The patented R3 PWM control scheme provides a low jitter
system with fast response to load transients. Light-load
efficiency is improved with period-stretching discontinuous
conduction mode (DCM) operation. To eliminate noise in
audio frequency applications, an ultrasonic DCM mode is
included, which limits the minimum switching frequency to
approximately 28kHz.
The ISL62381, ISL62382, ISL62381C and ISL62382C are
available in a 32 Ld 5x5 TQFN package, and the ISL62383
and ISL62383C are available in a 28 Ld 4x4 TQFN package.
This family of controllers can operate over the extended
temperature range (-10°C to +100°C).
Features
• High Performance R3 Technology
• Fast Transient Response
• ±1% Output Voltage Accuracy: -10°C to +100°C
• Two Fully Programmable Switch-Mode Power Supplies with
Independent Operation
• Programmable Switching Frequency
• Integrated MOSFET Drivers and Bootstrap Diode
• Adjustable (+1.2V to +5V) LDO Output
• Fixed +5V LDO Output with Automatic Switchover to SMPS2
• Internal Soft-Start and Soft-Stop Output Discharge
• Wide Input Voltage Range: +5.5V to +25V
• Full and Ultrasonic Pulse-Skipping Mode
• Power-Good Indicator
• Overvoltage, Undervoltage and Overcurrent Protection
• Fault Identification by PGOOD Pull-Down Resistance
• Thermal Monitor and Protection
• Pb-Free (RoHS Compliant)
Applications
• Notebook and Sub-Notebook Computers
• PDAs and Mobile Communication Devices
• 3-Cell and 4-Cell Li+ Battery-Powered Devices
• General Purpose Switching Buck Regulators
1 CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774 | Copyright Intersil Americas LLC. 2008, 2011, 2015. All Rights Reserved
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.

1 Page





ISL62381 pdf, ピン配列
ISL62381, ISL62382, ISL62383, ISL62381C, ISL62382C, ISL62383C
Absolute Maximum Ratings
VIN to GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to +28V
VCC1,2, PGOOD1,2, LDO5 to GND. . . . . . . . . . . . . . -0.3V to +7.0V
EN1,2, LDO3EN . . . . . . . . . . . . . . . . . . -0.3V to GND, VCC1 + 0.3V
VOUT1,2, FB1,2, LDO3FB, FSET1,2 . . -0.3V to GND, VCC1 + 0.3V
PHASE1,2 to GND . . . . . . . . . . . . . . . . . . . . . . . (DC) -0.3V to +28V
(<100ns Pulse Width, 10µJ) . . . . . . . . . . . . . . . . . . . . . . . . . -5.0V
BOOT1,2 to GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to +33V
BOOT1,2 to PHASE1,2 . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to +7V
UGATE1,2 . . . . . . . . . . . (DC) -0.3V to PHASE1,2, BOOT1,2 + 0.3V
(<200ns Pulse Width, 20µJ) . . . . . . . . . . . . . . . . . . . . . . . . -4.0V
LGATE1,2 . . . . . . . . . . . . . . . . . . . (DC) -0.3V to GND, VCC1 + 0.3V
(<100ns Pulse Width, 4µJ) . . . . . . . . . . . . . . . . . . . . . . . . . . -2.0V
LDO3, LDO5 Output Continuous Current . . . . . . . . . . . . . . +100mA
Thermal Information
Thermal Resistance (Typical, Notes 4, 5) JA (°C/W) JC (°C/W)
32 Ld TQFN Package . . . . . . . . . . . . .
30
1.75
28 Ld TQFN Package . . . . . . . . . . . . .
37
3
Junction Temperature Range. . . . . . . . . . . . . . . . . .-55°C to +150C
Operating Temperature Range . . . . . . . . . . . . . . . .-10C to +100C
Storage Temperature . . . . . . . . . . . . . . . . . . . . . . . .-65C to +150C
Pb-free reflow profile . . . . . . . . . . . . . . . . . . . . . . . . . .see link below
http://www.intersil.com/pbfree/Pb-FreeReflow.asp
Recommended Operating Conditions
Ambient Temperature Range. . . . . . . . . . . . . . . . . .-10°C to +100°C
Supply Voltage (VIN to GND) . . . . . . . . . . . . . . . . . . . . 5.5V to 25V
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
Tech Brief TB379
5. For JC, the “case temp” location is the center of the exposed metal pad on the package underside.
Electrical Specifications These specifications apply for TA = -10°C to +100°C, unless otherwise noted. Typical values are at TA = +25°C,
VIN = 12V. Boldface limits apply over the operating temperature range, -10°C to +100°C.
PARAMETER
CONDITIONS
MIN
(Note 8)
MAX
TYP (Note 8) UNITS
VIN
VIN Power-on Reset (POR)
Rising Threshold
5.3 5.4 5.5 V
Hysteresis
20 80 150 mV
VIN Shutdown Supply Current
EN1 = EN2 = GND or Floating, LDO3EN = GND
-
6 15 µA
VIN Standby Supply Current
EN1 = EN2 = GND or Floating, LDO3EN = VCC1
-
150 250
µA
LINEAR REGULATOR
LDO5 Output Voltage
LDO5 Short-Circuit Current (Note 6)
I_LDO5 = 0
I_LDO5 = 100mA (Note 6)
LDO5 = GND
4.9 5.0 5.1 V
4.9 5.0 5.1 V
- 190 - mA
LDO5 UVLO Threshold Voltage (Note 6)
Rising edge of LDO5
- 4.35 -
V
Falling edge of LDO5
- 4.15 -
V
SMPS2 to LDO5 Switchover Threshold
4.63 4.80 4.93
V
SMPS2 to LDO5 Switchover Resistance (Note 6) VOUT2 to LDO5, VOUT2 = 5V
-
2.5 3.2
LDO3 Reference Voltage (Note 6)
- 1.2 - V
LDO3 Voltage Regulation Range
LDO3 Short-Circuit Current (Note 6)
LDO3IN > VLDO3+dropout
LDO3 = GND
1.2 - 5 V
- 180 - mA
LDO3EN Input Voltage
Rising edge
1.1 - 2.5 V
Falling edge
0.94 - 1.06 V
LDO3EN Input Leakage Current
LDO3EN = GND or VCC1
-1 1 µA
LDO3 Discharge ON-Resistance
LDO3EN = GND
- 36 60
VCC
VCC Input Bias Current (Note 6)
EN1 = EN2 = VCC1, FB1 = FB2 = 0.65V
- 2 - mA
VCC1 Start-up Voltage
EN1 = EN2 = LDO3EN = GND
3.45 3.6 3.75 V
3 FN6665.6
October 23, 2015


3Pages


ISL62381 電子部品, 半導体
ISL62381, ISL62382, ISL62383, ISL62381C, ISL62382C, ISL62383C
Typical Application Circuits The below typical application circuits generate the 5V/8A and 3.3V/8A main supplies in a notebook
computer. The input supply (VBAT) range is 5.5V to 25V
VBAT
4x10µF
0.22µF
B O O T1
V IN
B O O T2
0.22µF
3 .3 V
330µF
750
1200pF
45.3k
4.7µH
IRF7821
0.022µF 14k
IRF7832
14k
3 .3 V
10k
4.7µF
17.4k
UGATE1
PHASE1
UGATE2
PHASE2
LGATE1
LGATE2
ISL62381
O C S E T 1 ISL62382 O C S E T 2
IS E N 1
ISL62383
ISL62381C
IS E N 2
V O U T 1 ISL62382C V O U T 2
FB1
ISL62383C
FB2
LDO3*
L D O 3IN *
LDO3FB*
PGOOD1
IRF7821
4.7µH
14k 0.022µF
IRF7832
14k
100k
5V
330µF
750
68.1k 1200pF
9.09k
5V
4.7µF
10k
10
1µF 1µF
*ISL62381, ISL62382, ISL62381C,
AND ISL62382C ONLY
LDO5
VCC1
VCC2
PGND
GND
PGOOD2
EN1
EN2
LD O 3EN *
FCCM
FSET1
FSET2
19.6k
100k
24.3k
0.01µF
LDO5
0.01µF
FIGURE 1. TYPICAL APPLICATION CIRCUIT WITH INDUCTOR DCR CURRENT SENSE
VBAT
4x10µF
3 .3 V
330µF
0.001
1k
0.22µF
4.7µH
1k
BOOT1
IRF7821
UGATE1
PHASE1
IRF7832
LGATE1
V IN
BOOT2
IRF7821
UGATE2
PHASE2
IRF7832
LGATE2
0.22µF
4.7µH
1k
750
1200pF 45.3k
3 .3 V
10k
4.7µF
17.4k
ISL62381
O C S E T 1 ISL62382 O C S E T 2
IS E N 1
VOUT1
ISL62383
ISL62381C
ISL62382C
IS E N 2
VOUT2
FB1
ISL62383C
FB2
LDO3*
LD O 3IN *
LDO3FB*
PGOOD1
100k
5 V 10k
4.7µF
10
1µF 1µF
LDO5
VCC1
VCC2
PGND
GND
PGOOD2
EN1
EN2
LD O 3E N *
FCCM
FSET1
FSET2
100k
24.3k
*ISL62381, ISL62382, ISL62381C,
AND ISL62382C ONLY
19.6k
0.01µF
FIGURE 2. TYPICAL APPLICATION CIRCUIT WITH RESISTOR CURRENT SENSE
0.001
1k
5V
330µF
750
68.1k 1200pF
9.09K
LDO5
0.01µF
6 FN6665.6
October 23, 2015

6 Page



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共有リンク

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部品番号部品説明メーカ
ISL62381

Quad or Triple-Output System Power Supply Controller

Intersil
Intersil
ISL62381C

Quad or Triple-Output System Power Supply Controller

Intersil
Intersil
ISL62382

Quad or Triple-Output System Power Supply Controller

Intersil
Intersil
ISL62382C

Quad or Triple-Output System Power Supply Controller

Intersil
Intersil


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