ROHM BD6524HFV Technical data
Power Management Switch ICs for PCs and Digital Consumer Products
Load Switch IC
for Portable Equipment
BD6524HFV
●Description
Power switch for memory card Slot (BD6524HFV) is a high side switch IC having one circuit of N-channel Power MOS FET.
The switch realizes 200mΩ (Typ.) ON resistance. Operations from low input voltage (VIN ≥ 3.0V) can be made for use for
various switch applications.
The switch turns on slowly by the built-in charge pump, therefore, it is possible to reduce inrush current at switch on. There is
no parasitic diode between the drain and the source, reverse current flow at switch off is prevented. Further, it has a
discharge circuit that discharges electric charge from capacitive load at switch off.
The BD6524HFV is available in a space-saving HVSOF6 package.
●Features
1) Low on resistance (200mΩ, Typ.) N-MOS switch built in
2) Maximum output current : 500mA
3) Soft start circuit
4) Under voltage lockout (UVLO) circuit
5) Discharge circuit built in : operations at switch off, UVLO
6) Reverse current flow blocking at switch off
●Applications
Memory card slots of notebook PC, digital still camera, portable music player, compact portable devices such as PDA and so forth
●Absolute Maximum Ratings
Parameter Symbol Ratings Unit
No.11029ECT13
Supply Voltage VIN -0.3 to 6.0 V
Control input voltage VEN -0.3 to VIN + 0.3 V
Switch output voltage V
Storage temperature T
Power dissipation Pd 510 *1 mW
*1 Derating : 4.08mW/℃ for operation above Ta = 25℃.
* This product is not designed for protection against radioactive rays.
* Operation is not guaranteed.
●Operation conditions
Parameter Symbol Ratings Unit
Supply voltage VIN 3.0 to 5.5 V
Operating Temperature T
Switch current I
-0.3 to 6.0 V
OUT
-55 to 150 ℃
STG
-25 to 75 ℃
OPR
500 mA
OUT
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© 2011 ROHM Co., Ltd. All rights reserved.
1/9
2011.06 - Rev.C
BD6524HFV
●Electrical characteristics
Unless otherwise specified, Ta = 25℃, VIN = 5V,
Parameter Symbol
Min. Typ. Max.
Limits
Unit Condition
Operating current IDD - 50 75 µA V
Standby current I
- 0.1 1 µA V
STB
V
- - 2.5 V High level input voltage
EN input voltage
ENH
V
0.7 - - V Low level input voltage
ENL
EN input leak current IEN -1 0.01 1 µA
Switch on resistance RON
Switch leak current I
LEAK
- 200 255 mΩ VIN = 5V
- 250 335 mΩ VIN = 3.3V
- - 10 µA At switch OFF
Switch rise time T
Switch rise delay time T
Switch fall time T
Switch fall delay time T
- 0.4 0.8 ms RL=10Ω. Refer to the timing diagram in Fig. 2.
ON1
- 0.5 1.0 ms RL=10Ω. Refer to the timing diagram in Fig. 2.
ON2
- 1 2 us RL=10Ω. Refer to the timing diagram in Fig. 2.
OFF1
- 2 4 us RL=10Ω. Refer to the timing diagram in Fig. 2.
OFF2
UVLO threshold voltage V
UVLO
1.9 2.2 2.5 V VIN increasing
1.8 2.1 2.4 V VIN decreasing
Discharge resistance R
Discharge current I
- 200 350 Ω VEN = 0V, IL = 1mA
DISC
0.8 1.8 - mA VEN = 0V,VIN = V
DISC
●Measurement circuit
VIN
VOUT
VIN
VOUT
EN
GND
Fig.1 Measurement circuit
●Timing diagram
VOUT
T
ON1
90%
90%
10%
VEN
T
ON2
50% 50%
Fig.2 Timing diagram
T
10%
OFF2
T
= 5V, VOUT = Open
EN
= 0V, VOUT = Open
EN
CL
RL
OFF1
OUT
Technical Note
= 1.8V
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2011.06 - Rev.C
BD6524HFV
●Typical characteristics
50
45
[uA]
40
DD
35
30
25
20
15
10
OPERATING CURRENT:I
From above :VIN=3.0V,5.0V,5.5V
5
0
-25 0 25 50 75
AMBIENT TEMPERATURE:Ta[℃]
Fig.3 Operating current
2.5
2.0
[V]
ENL
1.5
1.0
0.5
EN INPUT VOLTAGE:V
[ms]
ON2
TURN ON TIME2:T
From above: VIN=5.5V,5.0V,3.0V
0.0
-25 0 25 50 75
AMBIENT TEMPERATURE:Ta[℃]
Fig.6 EN threshold voltage
(Low level input voltage)
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0.0
From above: VIN=3.0V,5.0V,5.5V
-25 0 25 50 75
AMBIENT TEMPERATURE:Ta[℃]
Fig.9 Switch rise delay time
3.0
2.5
[V]
UVLO
2.0
1.5
VIN decreasing
V
IN increasing
1.0
UVLO THRESHOLD:V
0.5
0.0
-25 0 25 50 75
AMBIENT TEMPERATURE:Ta[℃]
Technical Note
0.10
0.08
[uA]
STB
0.06
0.04
0.02
STAND-BY CURRENT:I
0.00
-25 0 25 50 75
AMBIEN T TEMPER ATU RE:T a[℃]
Fig.4 Standby current
350
300
[mO]
250
ON
200
150
100
ON R ESISTAN CE:R
From above: VIN=3.0V,5.0V,5.5V
50
0
-2 5 0 25 50 75
AMBIEN T TEM PERAT URE:T a[℃]
Fig.7 Switch on resistance Fig.8 Switch rise time
3.5
3.0
[us]
2.5
OFF1
2.0
From above: VIN=3.0V,4.0V,5.0V,5.5V
1.5
1.0
TURN OFF TIME1:T
0.5
0.0
-25 0 25 50 75
AMBIENT TEMPERATURE:Ta[℃]
Fig.10 Switch fall time Fig.11 Switch fall delay time
25 0
[Ω]
20 0
DISC
15 0
10 0
50
DISCHARGE RESISTANCE:R
From above: VIN=3.0V,4.0V,5.0V,5.5V
0
-25 0 25 50 75
AMBI EN T TEM PE R ATU RE :Ta [℃]
Fig.13 Discharge resistance Fig.12 UVLO threshold voltage
2.5
2.0
[V]
ENH
1.5
1.0
0.5
EN INPUT VOLTAGE:V
From above: VIN=5.5V,5.0V,3.0V
0.0
-25 0 25 50 75
AMBIENT TEMPETRATURE:Ta[℃]
Fig.5 EN threshold voltage
(High level input voltage)
0.9
0.8
0.7
[ms]
0.6
ON1
0.5
0.4
0.3
0.2
TURN ON TIME1:T
From above: VIN=3.0V,4.0V,5.0V,5.5V
0.1
0
-25 0 25 50 75
AMBIENT TEMPERATURE:Ta[℃]
3.5
3.0
[us]
2.5
OFF2
2.0
1.5
1.0
TURN OFF TIME2:T
0.5
0.0
From above: VIN=3.0V,4.0V,5.0V,5.5V
-25 0 25 50 75
AMBIENT TEMPERATURE:Ta[℃]
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© 2011 ROHM Co., Ltd. All rights reserved.
3/9
2011.06 - Rev.C
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