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ISL9111A の電気的特性と機能

ISL9111AのメーカーはIntersil Corporationです、この部品の機能は「(ISL9111 / ISL9111A) High Efficiency Synchronous Boost Converter」です。


製品の詳細 ( Datasheet PDF )

部品番号 ISL9111A
部品説明 (ISL9111 / ISL9111A) High Efficiency Synchronous Boost Converter
メーカ Intersil Corporation
ロゴ Intersil Corporation ロゴ 




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ISL9111A Datasheet, ISL9111A PDF,ピン配置, 機能
Low Input Voltage, High Efficiency Synchronous Boost
Converter with 1A Switch
ISL9111, ISL9111A
The ISL9111 and ISL9111A provide a power supply solution
for single-cell, dual-cell, or three-cell alkaline, NiCd or NiMH
battery-powered applications. The device has a typical 0.8V
start-up voltage and is capable of supplying up to 5.25V output
voltage. Both devices are guaranteed to supply 100mA from a
single-cell input and 240mA from a dual-cell input when
output is 3.3V. High 1.2MHz switching frequency allows for the
use of tiny, low-profile inductors and ceramic capacitors to
minimize the size of the solution.
The ISL9111 and ISL9111A are internally compensated, fully
integrated synchronous boost converters optimized for
efficiency with minimal external components. At light load, the
device enters skip mode and consumes only 20µA of
quiescent current, resulting in higher efficiency at light loads
and maximum battery life.
The ISL9111 and ISL9111A address both rechargeable and
non-rechargeable battery applications. The ISL9111 has a
UVLO feature, which will internally shut off at 0.7V protecting a
rechargeable battery. The ISL9111A has this feature disabled
to maximize the usable life of a non-rechargeable single cell
battery. The parts are available in fixed 3.0V, 3.3V and 5.0V
output voltage versions or an adjustable output voltage version
(ADJ). The fixed output voltage version also provides a FAULT
pin for fault condition monitoring. The ISL9111 and ISL9111A
are available in a 6 Ld SOT-23 package.
Features
• Up to 97% Efficiency at Typical Operating Conditions
• Minimum Start-up Voltage
- 0.8V (ISL9111)
- 0.6V (ISL9111A)
• Minimum Operating Voltage
- 0.7V (ISL9111)
- 0.5V (ISL9111A)
• Low Quiescent Current: 20μA (Typical)
• At VOUT = 3.3V
- 100mA Output Current @ VIN = 0.9V
- 240mA Output from @ VIN = 1.8V
• Logic Control Shutdown (Iq < 1µA)
• Output Voltage Up to 5.25V
• Output Disconnect During Shutdown
• Skip Mode Under Light Load Condition
• Undervoltage Lockout (ISL9111 Only)
• Fault Protection: OVP (ADJ Version Only), OTP, Short Circuit
• 6 Ld SOT-23 Package
Applications
• Products Including Portable HDMI and USB-OTG
• Personal Medical Products
• Wireless Mouse/Keyboard
• Bluetooth Headsets
• MP3/MP4 Players/DSC
• Single-cell, Dual-cell and Triple-cell Alkaline, NiCd, NiMH
Powered Products
4.7µH
VIN
4.7µF
1
SW
6 VIN
3
EN
VFLT
1k 4
FAULT
5
VOUT
GND 2
VOUT
4.7µF
ISL9111: 3.0/3.3/5.0V, ISL9111A: 3.0/3.3/5.0V
FIGURE 1. TYPICAL APPLICATION
100
95
90
85
80
75
70
65
60
55
500.1
VIN = 3.6V
VIN = 1.8V VIN = 0.9V
1 10 100
IOUT (mA)
FIGURE 2. FIXED 5V EFFICIENCY
1000
June 4, 2012
FN7602.4
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 Inc. 2011. 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





ISL9111A pdf, ピン配列
ISL9111, ISL9111A
Block Diagram: ISL9111-3.0/3.3/5.0V, ISL9111A-3.0/3.3/5.0V
C1
VIN
6
VOUT
5
C2
FAULT
4
UVLO
VINT VOLTAGE
SELECTOR
START-UP
GATE
DRIVER
AND
ANTI-CROSS
CONDUCTION
ZCD
CONTROL LOGIC
SW
VOUT
CURRENT
SENSE
N-WELL
SWITCH
SW
1
L1
EN
3
OFF ON
AND
FAULT
MONITORING
DIGITAL
SOFT-START
CURRENT
LIMIT
VOLTAGE
CLAMP
1.2MHz
OSCILLATOR
THERMAL
SHUTDOWN
2
SLOPE COMP
VOUT
gm
REFERENCE
GENERATOR
3 FN7602.4
June 4, 2012


3Pages


ISL9111A 電子部品, 半導体
ISL9111, ISL9111A
Absolute Maximum Ratings
VIN, EN, FAULT, VOUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to 6.5V
FB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to 6.5V
SW Voltage
DC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.5V to 6.5V
Pulse < 10ns . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.5V to 8.0V
ESD Ratings
Human Body Model (Tested per JESD22-A114F) . . . . . . . . . . . . . . . . 3kV
Machine Model (Tested per JESD22-A115-A) . . . . . . . . . . . . . . . . . . 250V
*Other ESD Spec should meet Level 1 requirement
Latch Up (Tested per JESD78; Class 2, Level A) . . . . . . . . . . . . . . . . 100mA
Thermal Information
Thermal Resistance (Typical)
θJA (°C/W)
6 Ld SOT-23 (Note 5) . . . . . . . . . . . . . . . . . . . . . . . . . . . .
146
Junction Temperature Range . . . . . . . . . . . . . . . . . . . . . . .-20°C to +125°C
Operating Temperature Range . . . . . . . . . . . . . . . . . . . . . . . -20°C to +85°C
Storage Temperature Range. . . . . . . . . . . . . . . . . . . . . . . .-65°C to +150°C
Pb-Free Reflow Profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . see link below
http://www.intersil.com/pbfree/Pb-FreeReflow.asp
Recommended Operating Conditions
VIN. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.8V to VOUT - 200mV
Ambient Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . -20°C to +85°C
Maximum DC Current from Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . 750mA
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.
NOTE:
5. θJA is measured with the component mounted on a high effective thermal conductivity test board in free air. See Tech Brief TB379 for details.
Electrical Specifications VIN = 1.2V, VOUT = 3.3V, TA = +25°C (see “Typical Application Circuits” on page 7). Boldface limits apply
over the operating temperature range, -20°C to +85°C.
PARAMETER
SYMBOL
TEST CONDITIONS
MIN MAX
(Note 6) TYP (Note 6) UNITS
Minimum Start-up Voltage (ISL9111)
Minimum Operating Voltage
after Start-up (ISL9111)
VMIN
VUVLO
VEN = VIN, RLOAD = 50
VEN = VIN, RLOAD = 50
0.68
0.80
0.70
0.90
0.76
V
V
Minimum Start-up Voltage (ISL9111A)
Minimum Operating Voltage
after Start-up (ISL9111A)
VMIN
VOPT
VEN = VIN, No Load
VEN = VIN, No Load
0.75
0.50
V
V
Output Voltage Range
(ISL9111-ADJ/ISL9111A-ADJ)
VOUT
VIN < VOUT
2.5
5.25
V
Output Voltage Accuracy
(ISL9111: 3.0/3.3/5.0V,
ISL9111A: 3.0/3.3/5.0V)
VOUT
VIN = 1.2V, ILOAD = 50mA
-100
+100
mV
Feedback Voltage
(ISL9111-ADJ/ISL9111A-ADJ)
VFB VOUT = 5V
784 800 816 mV
Feedback Pin Input Current
100 nA
Quiescent Current from VOUT
Shutdown Current from VIN
Leakage Current at SW Pin
N-Channel MOSFET ON-Resistance
P-Channel MOSFET ON-Resistance
N-Channel MOSFET Peak Current Limit
Maximum Duty Cycle
PWM Switching Frequency
Soft-Start-Up Time
IQ1 No Load (Note 7)
20 45 μA
ISD VEN = 0V, VIN = 1.2V, VO = 0
0.5 2
μA
VEN = 0V, VIN = 5V, VO = 0, TA = +25°C
1 μA
VOUT = 5V
0.2
VOUT = 5V
0.35
IPK
0.8 1.0 1.2
A
DMAX
84 87.5
%
FOSC
1.0 1.2 1.4 MHz
1 ms
EN Logic High
EN Logic Low
FAULT Pin Leakage Current when High
FAULT Pin Sink Current when Low
VFLT = VOUT
VFLT = 0.5V
0.8*VIN
10
0.2*VIN
100
V
V
nA
mA
6 FN7602.4
June 4, 2012

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
ISL9111

(ISL9111 / ISL9111A) High Efficiency Synchronous Boost Converter

Intersil Corporation
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ISL91117

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ISL9111A

(ISL9111 / ISL9111A) High Efficiency Synchronous Boost Converter

Intersil Corporation
Intersil Corporation


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