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EMH7020 PDF даташит

Спецификация EMH7020 изготовлена ​​​​«Elite Semiconductor» и имеет функцию, называемую «500KHz PWM Synchronous Boost Converter».

Детали детали

Номер произв EMH7020
Описание 500KHz PWM Synchronous Boost Converter
Производители Elite Semiconductor
логотип Elite Semiconductor логотип 

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EMH7020 Даташит, Описание, Даташиты
ESMT/EMP
EMH7020
500mA, 500KHz PWM Synchronous Boost Converter
with Output Isolated During Shutdown
General Description
The EMH7020 is a high efficiency, synchronous fixed
frequency, current-mode step-up DC/DC converter.
During shutdown mode, the output is completely
isolated from the input without drawing any battery
current. The fixed 500KHz switching frequency obtains
maximum efficiency up to 96% and uses only a few
external components.
With 180loading, the minimum start-up voltage can
be as low as 0.93V, provided by a one or two-cell
alkaline or one-cell Li-Lon battery.
The features of EMH7020 include current limit, low
battery comparator, open-drain power good output,
short circuit, and thermal shutdown protection. The
EMH7020 is also available in 3X3mm TDFN-10 and
E-MSOP-8L package.
Applications
Mobile Phone
Digital Still Cameras
Portable applications
MP3 Players
GPS Receivers
Features
Up to 96% efficiency
Reference voltage: 0.5V
Output to input disconnect at shutdown mode
500mA current delivery
Switch current limit protection
500KHz fixed switching frequency
Thermal shutdown protection
0.5V Low-battery comparator
Min-start up voltage: 0.93V
Low quiescent current: 50uA (Tpy.)
Low shutdown current < 1uA
TDFN 3x3mm 10 pins and E-MSOP 8 pins
package
Typical Application
Elite Semiconductor Memory Technology Inc./Elite MicroPower Inc.
Publication Date: Jun. 2012
Revision: 1.2
1/15









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EMH7020 Даташит, Описание, Даташиты
ESMT/EMP
Connection Diagrams
EMH7020
Order information
EMH7020-XXFF10NRR
XX Output voltage
---------------------------------------------------
00 Adj output
---------------------------------------------------
FF10
TDFN-10 Package
---------------------------------------------------
NRR RoHS & Halogen free package
Rating: -40 to 85°C
Package in Tape & Reel
EMH7020-XXME08NRR
XX Output voltage
---------------------------------------------------
00 Adj output
---------------------------------------------------
ME08
E-MSOP-8L Package
---------------------------------------------------
NRR RoHS & Halogen free package
Rating: -40 to 85°C
Package in Tape & Reel
Order, Marking & Packing Information
Package
Product ID.
TDFN-10
EMH7020-00FF10NRR
PIN1 DOT
Marking
10 9 8 7 6
EMP
EMH7020
Tracking Code
12345
E-MSOP-8L
EMH7020-00ME08NRR
Packing
Tape & Reel
5Kpcs
Tape & Reel
3Kpcs
Elite Semiconductor Memory Technology Inc./Elite MicroPower Inc.
Publication Date: Jun. 2012
Revision: 1.2
2/15









No Preview Available !

EMH7020 Даташит, Описание, Даташиты
ESMT/EMP
EMH7020
Pin Functions
Pin Name
EN
OUT
FB
LBO
AGND
BAT
LBI
TE
NC
LX
PGND
Thermal
land
TDFN-10
Pin #
1
2
3
4
5
6
7
N/A
8
9
10
11
E-MSOP-8L
Pin #
1
2
3
N/A
4
5
N/A
6
N/A
7
8
9
Function
Chip enable pin (1: enabled ; 0: disabled)
Boost converter output
Output voltage feedback input pin, using resistor
divider to set the output voltage from +1.8V to 5.5V.
Open-drain low battery comparator output
Analog ground
Battery input
Low battery comparator input
It should be connected to BAT pin if the comparator is
not used.
Reserved for test mode
NC pin
Boost and rectifying switch input
Power ground
Must be soldered this to PCB ground to achieve
appropriate power dissipation.
Functional Block Diagram
LX
EN
FB
LBO
LBI
EN
SLOPE
COMPENSATION
INTERNAL
COMPENSATION
_
REF +
_
+
_
REF +
CURRENT
SENSER
CURRENT
LIMIT
CONTROL
LOGIC
OSC
VHIGH
BAT
BODY AND VHIGH
SELECT
ZCD
OUT
AGND
PGND
FIG.1 Functional block diagram of EMH7020
Elite Semiconductor Memory Technology Inc./Elite MicroPower Inc.
Publication Date: Jun. 2012
Revision: 1.2
3/15










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Номер в каталогеОписаниеПроизводители
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