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부품번호 | BD2204GUL 기능 |
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기능 | Power Supply Selector Switch IC | ||
제조업체 | ROHM Semiconductor | ||
로고 | |||
전체 27 페이지수
Datasheet
Power Supply Selector Switch IC
for SD Cards
BD2204GUL
General Description
BD2204GUL is high side switch IC that has built-in 2
circuits of MOSFET. Switch has achieved 120mΩ(Typ)
on-resistance. 3.3V power supply and 1.8V power
supply for memory card can be selected by SEL terminal.
Moreover, it has built-in simultaneous-on prevention
function at power switching, reverse-current protection
function to prevent reverse-current from output terminal
to input terminal at power-off, and discharge circuit to
discharge electricity in output terminal.
Features
Dual channel of low on resistance (Typ = 120mΩ)
N-channel MOSFET built in.
3.3V and 1.8V are chosen and an output is possible.
0.5A Continuous Current load.
Reverse-current protection when power switch off.
Prevent VIN1 and VIN2 from simultaneous-on.
Output Discharge Circuit
Thermal Shutdown
Active-High Control Logic
VCSP50L1 package
Applications
Digital cameras
Digital video camera
SD cards slot
Key Specifications
Input voltage range:
ON resistance:
Operating current:
Standby current:
Operating temperature range:
VIN1=2.7 to 4.5V
VIN2=1.2 to 2.4V
120mΩ(Typ)
25μA(Typ)
0.01μA(Typ)
-40 to +85 °C
Package
VCSP50L1
W(Typ) x D(Typ) x H(Max)
1.50mm x 1.00mm x 0.55mm
VCSP50L1
Typical Application Circuit
3.3V
0.1μF
1.8V
VIN1 VOUT
VIN2
GND
EN SEL
LOAD
CL
Figure 1. Typical application circuit
〇Product structure : Silicon monolithic integrated circuit
.www.rohm.com
© 2012 ROHM Co., Ltd. All rights reserved.
TSZ22111 • 14 • 001
〇This product has no designed protection against radioactive rays
1/23
TSZ02201-0GDG0H300050-1-2
25.Sep.2015 Rev.003
BD2204GUL
*3 When the switch changes from VIN1 to VIN2 or from VIN2 to VIN1, it is possible that VOUT voltage drops.
Dropped voltage of VOUT is specified as Voutdrop1 and Voutdrop2.
That voltage drop is caused by the function which prevents VIN1 and VIN2 from turning on simultaneously.
This function generates the period which both VIN1and VIN2 are turned off, and prevents the penetration
current between VIN1 and VIN2.
VOUT=VIN2→VIN1
VOUT VIN2(1.8V)
Voutdrop2
VIN(3.3V)
Min. 1.4V
VIN(3.3V)
Min. 1.4V
VOUT=VIN1→VIN2
VIN2(1.8V)
Voutdrop1
OUT1
(Internal Signal)
OUT2
(Internal Signal)
TD2
TD1 TCOMP
Figure 4. VOUTIdrop voltage
*TD1 and TD2 + TCOMP are period of Simultaneous-Off.
*TCOMP is period of VOUT becoming same voltage as VIN2.
*The value of Min. is in condition of IOUT=500mA and CL=15uF.
Measurement Circuit
VIN1
A
VIN2
A
VIN1 VOUT
VIN2 GND
VIN1
VIN1 VOUT
VIN2 CIN
VIN2 GND
VEN
EN SEL
EN SEL
VEN
RL CL
VSEL
Operating current, Standby current
VIN1
VIN2
VIN1
CIN
VOUT
VIN2 GND
EN SEL
VEN
EN, SEL input voltage, Output rise, fall time
VIN1
CL ↓
VIN2
VIN1
CIN
VOUT
VIN2 GND
↑ 1mA
VSEL VEN
EN SEL
On-resistance, VOUT drop voltage
Figure 5. Measurement circuit
Discharge resistance
.www.rohm.com
© 2012 ROHM Co., Ltd. All rights reserved.
TSZ22111 • 15 • 001
4/23
TSZ02201-0GDG0H300050-1-2
25.Sep.2015 Rev.003
4페이지 BD2204GUL
Typical Performance Curves - continued
200
Ta=25°C
150
100
50
0
2345
SUPPLY VOLTAGE : VIN1[V]
Figure 14. On-resistance1
200
VIN1=3.3V
VIN2=1.8V
150
100
50
0
-50
0 50
AMBIENT TEMPERATURE : Ta[°C]
Figure 15. On-resistance1
100
200
Ta=25°C
150
100
50
0
2345
SUPPLY VOLTAGE : VIN1[V]
Figure 16. On-resistance2
200
VIN1=3.3V
VIN2=1.8V
150
100
50
0
-50
0 50
AMBIENT TEMPERATURE : Ta[°C]
Figure 17. On-resistance2
100
.www.rohm.com
© 2012 ROHM Co., Ltd. All rights reserved.
TSZ22111 • 15 • 001
7/23
TSZ02201-0GDG0H300050-1-2
25.Sep.2015 Rev.003
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구매 문의 | 일반 IC 문의 : 샘플 및 소량 구매 ----------------------------------------------------------------------- IGBT, TR 모듈, SCR 및 다이오드 모듈을 포함한 광범위한 전력 반도체를 판매합니다. 전력 반도체 전문업체 상호 : 아이지 인터내셔날 사이트 방문 : [ 홈페이지 ] [ 블로그 1 ] [ 블로그 2 ] |
부품번호 | 상세설명 및 기능 | 제조사 |
BD2204GUL | Power Supply Selector Switch IC | ROHM Semiconductor |
DataSheet.kr | 2020 | 연락처 | 링크모음 | 검색 | 사이트맵 |