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PDF BD6524HFV Data sheet ( Hoja de datos )
| Número de pieza | BD6524HFV | |
| Descripción | 0.5A Current Load Switch ICs | |
| Fabricantes | ROHM Semiconductor | |
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Datasheet
Load Switch ICs
0.5A Current Load Switch ICs
for Portable Equipment
BD6524HFV
General Description
BD6524HFV is a high side switch IC using an
N-Channel MOSFET and used as a power switch for in
memory card slot. This switch has an ON-Resistance
of 200mΩ (Typ). Operations using low input voltage
(VIN ≥ 3.0V) are possible for various switch
applications. The switch turns ON slowly by the built-in
charge pump; therefore, it is possible to reduce inrush
current during switch ON. There is no parasitic diode
between the drain and the source so reverse current
flowing at switch OFF is prevented. Furthermore, it has
a discharge circuit that releases electric charge from
capacitive load at switch OFF. This IC is available in a
space-saving HVSOF6 package.
Key Specifications
Input Voltage Range:
ON-Resistance: (VIN=5V)
(V IN =3.3V)
Continuous Current:
Standby Current:
Operating Temperature Range:
3.0V to 5.5V
200mΩ(Typ)
250mΩ(Typ)
0.5 A
0.1μA (Typ)
-25°C to +75°C
Package
W(Typ) D(Typ) H (Max)
Features
Built in N-MOS Switch with Low ON-Resistance
(200mΩ, Typ)
Maximum Output Current : 500mA
Soft Start Function
Under Voltage Lockout (UVLO) Protection
Built in Discharge Circuit: Operations at Switch OFF,
UVLO
Reverse Current Flow Blocking at Switch OFF
Condition
HVSOF6
1.60mm x 3.00mm x 0.75mm
Applications
Memory Card Slots for Notebook PC, Digital still
Camera, Portable Music Player, Compact Portable
Devices such as PDA and so forth.
Typical Application Circuit
IN OUT
0.1μF to 1μF
EN
IN
EN
OUT
GND
LOAD
○Product structure：Silicon monolithic integrated circuit
www.rohm.com
© 2013 ROHM Co., Ltd. All rights reserved.
TSZ22111･14･001
○This product has not designed protection against radioactive rays
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TSZ02201-0E3E0H300260-1-2
21.Aug.2014 Rev.002
1 page  
BD6524HFV
Typical Performance Curves - continued
350
300
250
200
150
100
From above: VIN=3.0V, 5.0V, 5.5V
50
0
-25 0 25 50 75
AmAmbibeinetnTt eTemmppeeraratuturere:T:aT[a℃[°C]
Figure 7. Switch ON-Resistance vs
Ambient Temperature
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
From above: VIN=3.0V, 4.0V, 5.0V, 5.5V
0.1
0.0
-25
0 25 50
AAmmbbieiennt tTTeemmppeerraattuurree:T:aT[a℃[°]C]
75
Figure 9. Switch Rise Delay Time vs
Ambient Temperature
Datasheet
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1 From above: VIN= 3.0V, 4.0V, 5.0V, 5.5V
0
-25 0 25 50 75
AmAmbibeinent Tt Teemmppeerraatuturree:T:aT[a℃[°]C]
Figure 8. Switch Rise Time vs
Ambient Temperature
3.5
3.0
2.5
2.0 From above: VIN= 3.0V, 4.0V, 5.0V, 5.5V
1.5
1.0
0.5
0.0
-25
0 25 50
AAmmbbiieenntt TTeemmppeeraratuturere::TTaa[[℃°C]]
Figure 10. Switch Fall Time vs
Ambient Temperature
75
www.rohm.com
© 2013 ROHM Co., Ltd. All rights reserved.
TSZ22111･15･001
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TSZ02201-0E3E0H300260-1-2
21.Aug.2014 Rev.002
5 Page 
BD6524HFV
Typical Application Circuit
0.1μF to 1μF
EN
IN
IN
EN
OUT
OUT
GND
LOAD
Datasheet
Functional Description
1. Input / Output
The IN and OUT pins are connected to the drain and the source of the N-MOS switch respectively. The IN pin is also used
as power supply input to the internal control circuit.
When EN input is set to High level and the switch is turned ON, the IN and OUT pins are connected by a 200mΩ switch.
Under normal conditions, current flows from IN to OUT. If voltage at pin OUT pin is higher than pin IN, current flows from
OUT to IN since the switch is bidirectional. There is no parasitic diode between the drain and the source, so it is possible to
prevent current from flowing reversely from OUT pin to IN pin when the switch is disabled.
2. Discharge Circuit
When the switch between the IN and the OUT is turned OFF, the 200Ω(Typ) discharge switch between OUT and GND turns
on. By turning on this switch, electric charge at capacitive load is discharged.
3. Under Voltage Lockout (UVLO)
The UVLO circuit monitors the voltage of the IN pin when the EN input is active. UVLO circuit prevents the switch from
turning ON until the IN exceeds 2.2V (Typ). If the IN drops below 2.1V (Typ) while the switch turns on, then UVLO shuts off
the switch.
While the switch between the IN pin and OUT pin is OFF due to UVLO operations, the switch of the discharge circuit turns
ON. However, when the voltage of IN declines tremendously, then the OUT pin becomes Hi-Z.
VVININ
VVEENN
VVOOUUTT
Discharg放e電Ci回rcu路it
ON
2.1V((TTyypp.))
2.2V((TTyypp.))
OFF
ON OFF
ON OFF
Figure 28. Operation Timing
www.rohm.com
© 2013 ROHM Co., Ltd. All rights reserved.
TSZ22111･15･001
11/17
TSZ02201-0E3E0H300260-1-2
21.Aug.2014 Rev.002
11 Page | ||
| Páginas | Total 21 Páginas | |
| PDF Descargar | [ Datasheet BD6524HFV.PDF ] | |
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