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BD6522F
Technical data
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ROHM BD6522F Technical data

Power Management Switch ICs for PCs and Digital Consumer Products
Load Switch ICs for Potable Equipment
●Description
The power switch for expansion module is a power management switch having one circuit of N-channel Power MOS FET. The switch realizes 50mΩ(Typ.) ON resistance. The switch turns on smoothly by the built-in charge pump, therefore, it is possible to reduce inrush current at switch on. And soft start control by external capacitor is available. Further, it has a discharge circuit that discharges electric charge from capacitive load at switch off, Under voltage lockout circuit, and a thermal shutdown circuit.
●Features
1) Low on resistance (50mΩ, Typ.) N-MOS switch built in
2) Maximum output current: 2A
3) Discharge circuit built in
4) Soft start control circuit built in
5) Under voltage lockout (UVLO) circuit built in
6) Thermal shutdown (Output off latching)
7) Reverse current flow blocking at switch off (only BD6522F)
●Applications
Notebook PC, PC peripheral device, etc.
●Lineup
Parameter BD6520F BD6522F
Supply Voltage 3 to 5.5V 3 to 5.5V
Switch current 2A 2A
On Resistance 50mΩ 50mΩ
OUT Rise Time 2000µs 1000µs
OUT Fall Time 3µs 4µs
Package SOP8 SOP8
Reverse current flow blocking at switch off - ○
●Absolute Maximum Ratings
Parameter Symbol Ratings Unit
Supply Voltage VDD -0.3 to 6.0 V
CTRL Input Voltage V
Switch Output Voltage V
Storage temperature T
Power dissipation Pd 560*1 mW
*1 This value decreases 4.48mW/℃ above Ta=25℃ * Resistance radiation design is not doing. * Operation is not guaranteed.
●Operation conditions
Parameter Symbol
Supply Voltage VDD 3.0 to 5.5 V
Switch current I
Operating Temperature T
-0.3 to 6.0 V
CTRL
OUT
STG
0 to 2 A
OUT
OPR
-0.3 to 6.0 (BD6522F) V
-55 to 150 ℃
-25 to 85 ℃
-0.3 to V
+ 0.3 (BD6520F) V
DD
Ratings
Unit
No.11029EBT12
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© 2011 ROHM Co., Ltd. All rights reserved.
1/16
2011.05 - Rev.B
BD6520F,BD6522F
●Electrical characteristics ◎BD6520F(Unless otherwise specified, Ta = 25℃, VDD = 5V)
Parameter Symbol
On Resistance
Operating Current
Control Input voltage
RON1 - 50 70 mΩ VDD = 5V, V RON2 - 60 85 mΩ VDD = 3V, V
I
DD
I
DDST
V
CTRL
V
CTRL
Min. Typ. Max.
- 110 220 µA V
- - 2 µA V
L - - 0.7 V V
H 2.5 - - V V
Limits
Technical Note
Unit Condition
= 5V
CTRL
= 3V
CTRL
= 5V, OUT = OPEN
CTRL
= 0V, OUT = OPEN
CTRL
L = Low Level
CTRL
H = High Level
CTRL
Control Input current I
-1 0 1 µA V
CTRL
Turn On Delay Trd 200 1000 2000 us
Turn On Rise Time Tr 500 2000 7500 us
Turn Off Delay Tfd - 3 20 us
Turn Off Fall Time Tf - 1 20 us
Discharge Resistance R
UVLO Threshold Voltage
UVLO Hysteresis Voltage V
- 350 600 Ω VDD = 5V, V
SWDC
V
H 2.3 2.5 2.7 V VDD increasing
UVLO
V
L 2.1 2.3 2.5 V VDD decreasing
UVLO
100 200 300 mV V
HYS
Thermal Shutdown Threshold TTS - 135 - ℃ V
SSCTL Output Voltage V
- 13.5 - V V
SSCTL
◎BD6522F(Unless otherwise specified, Ta = 25℃, V
Parameter Symbol
On Resistance
Operating Current
Control Input Voltage
R
ON
RON2 - 60 85 mΩ VDD = 3.3V, V
I
DD
I
DDST
V
CTRL
V
CTRL
Min. Typ. Max.
1 - 50 70 mΩ VDD = 5V, V
- 110 220 µA V
- - 2 µA V
L - - 0.7 V V
H 2.5 - - V V
DD
= 5V)
Limits
= L, H
CTRL
RL = 10Ω,SSCTL = OPEN CTRL = L→H → OUT=50%
RL = 10Ω,SSCTL = OPEN CTRL = 10% → 90%
RL = 10Ω,SSCTL = OPEN CTRL = H→L → OUT=50%
RL = 10Ω,SSCTL = OPEN CTRL = 90% → 10%
HYS
CTRL
CTRL
= V
= 5V
= 5V
UVLO
CTRL
H - V
= 0V, V
UVLO
= 5V
OUT
L
Unit Condition
= 5V
CTRL
= 3.3V
CTRL
= 5V, OUT = OPEN
CTRL
= 0V, OUT = OPEN
CTRL
L = Low Level
CTRL
H = High Level
CTRL
Control Input Current I
-1 0 1 µA V
CTRL
Turn On Time TON - 1000 3500 us
Turn Off Time T
Discharge Resistance R
UVLO Threshold Voltage
UVLO Hysteresis Voltage V
- 4 20 us
OFF
- 350 600 Ω VDD = 5V,VCTRL = 0V
SWDC
V
H 2.3 2.5 2.7 V VDD increasing
UVLO
V
L 2.1 2.3 2.5 V VDD decreasing
UVLO
100 200 300 mV V
HYS
Thermal Shutdown Threshold TTS - 135 - ℃ V
SSCTL Output Voltage V
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© 2011 ROHM Co., Ltd. All rights reserved.
- 13.5 - V V
SSCTL
2/16
= L, H
CTRL
RL = 10Ω,SSCTL = OPEN CTRL = H → OUT =90%
RL = 10Ω,SSCTL = OPEN CTRL = L → OUT = 10%
HYS
CTRL
CTRL
= V
UVLO
= 5V
= 5V
H - V
UVLO
L
2011.05 - Rev.B
BD6520F,BD6522F
●Measurement circuit
◎BD6520F ◎BD6522F
VDD
BD6520F
VDDA
OUTA
C
SS
VDDB
SSCTL
CTRL
VCTRL
OUTB
OUTC
VSS
RL
CL
I
OUT
Fig.1 Measurement circuit
●Timing diagram
◎BD6520F
T
r
90%
90%
f
T
OUT
V
10%
50%
50%
10%
T
TfdTrd
OFF
VCTRL VCTRL
VCTRLH VCTRLL VCTRLHVCTRLL
Fig.2 Timing diagram
VDD
CSS
◎BD6522F
V
OUT
VCTRL
T
VDDA
VDDB
SSCTL
CTRL
ONTON
BD6522F
OUTA
OUTB
DISC
90%
VSS
Technical Note
RL
CL
10%
TOFF
IOUT
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© 2011 ROHM Co., Ltd. All rights reserved.
3/16
2011.05 - Rev.B
BD6520F,BD6522F
●Typical characteristics ◎BD6520F
80
Ta = 25 ℃ Ta = 25 ℃
70
60
50
40
30
20
ON RESISTANCE : Ron [mΩ]
10
0
23456
SUPPLY VOLTAGE : V
Fig.3 On resistance
120
V
DD = 5.0V Ta = 25℃ VDD = 5.0V
100
[uA]
DD
80
60
40
20
OPERATING CURRENT : I
0
-40-20 0 20406080100
AMBIENT TEMPERATURE : Ta [℃]
Fig.6 Operating current
(CTRL enable)
2.5
[V]
CTRL
2.0
1.5
1.0
Ta = 25
℃ VDD = 5.0V VDD = 5.0V
Low to High
0.5
CTRL INPUT VOLTAGE : V
0.0
23456
SUPPLY VOLTAGE : V
Fig.9 CTRL input voltage
0.4
[V]
0.3
CTRLHYS
Ta = 25
℃ VDD = 5.0V Ta = 25℃
0.2
0.1
CTRL HYSTERESIS : V
0
23456
SUPPLY VOLTAGE : V
Fig.12 CTRL hysteresis voltage
DD
High to Low
DD
DD
[V]
[V]
[V]
80
70
60
50
40
VDD=3.0V
30
20
ON RESISTANCE : Ron [mΩ]
10
0
DD=3.3V
V
DD=5.0V, 5.5V
V
-40-20 0 20406080100
AMBITENT TEMPERATURE : Ta [℃]
Fig.4 On resistance Fig.5 Operating current
0.10
[uA]
0.08
DDST
0.06
0.04
0.02
OPERATING CURRENT : I
0.00
23456
SUPPLY VOLTAGE : V
[V]
DD
Fig.7 Operating current
(CTRL disenable)
2.5
[V]
2.0
CTRL
1.5
1.0
0.5
CTRL INPUT VOLTAGE : V
0.0
-40 -20 0 20 40 60 80 100
AMBIENT TEMPERATURE : Ta [
Fig.10 CTRL input voltage H→L
0.4
[V]
0.3
CTRLHYS
0.2
0.1
CTRL HYSTERESIS : V
0
-40 -20 0 20 40 60 80 100
AMBIENT TEMPERATURE : Ta [
Fig.13 CTRL hysteresis voltage
Technical Note
120
100
[uA]
DD
80
60
40
20
OPERATING CURRENT : I
0
23456
Ton
[V]
DD
]
℃
[V]
DD
SUPPLY VOLTAGE : V
(CTRL enable)
1.0
0.8
[uA]
LEAK
0.6
0.4
0.2
LEAK CURRENT : I
0.0
0 20406080100
AMBIENT TEMPERATURE : Ta [℃]
Fig.8 Leak current
2.5
[V]
2.0
CTRL
1.5
1.0
0.5
CTRL INPUT VOLTAGE : V
0.0
-40-20 0 204060 80100
]
℃
AMBIENT TEMPERATURE : Ta [
Fig.11 CTRL input voltage L→H
5
4
3
2
TURN ON TIME :Ton [ms]
1
0
23456
]
℃
Tr
Trd
SUPPLY VOLTAGE : V
Fig.14 Turn On Rise time
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© 2011 ROHM Co., Ltd. All rights reserved.
4/16
2011.05 - Rev.B
BD6520F,BD6522F
5
VDD = 5.0V Ta = 25℃ VDD = 5.0V
4
3
2
1
TURN ON TIME : Ton [ms]
0
-40-20 0 20406080100
AMBIENT TEMPERATURE : Ta [℃]
Ton
Tr
Trd
Fig.15 Turn On Rise time
7
6
5
4
3
2
TURN OFF TIME : Toff [us]
1
0
23456
Tfd
Tf
SUPPLY VOLTAGE : V
Fig.16 Turn Off Fall time
500
[Ω]
SWDC
400
300
Ta = 25
℃ VDD = 5.0V
[Ω]
SWDC
500
400
300
200
100
DISCHARGE RESISTANCE : R
0
23456
SUPPLY VOLTAGE : V
[V]
DD
Fig.18 Switch discharge resistance Fig.19 Switch discharge resistance
200
100
DISCHARGE RESISTANCE : R
0
-40 -20 0 20 40 60 80 100
AMBIENT TEMPERATURE : Ta [
0.3 V
DD = 5.0V VDD = 5.0V, Ta = 25℃, RL = 10Ω VDD = 5.0V, Ta = 25℃, RL = 10Ω
[V]
UVLOHYS
0.2
0.1
UVLO HYSTERESIS : V
0
-40 -20 0 20 40 60 80 100
AMBIENT TEMPERATURE : Ta [
]
℃
Fig.21 UVLO hysteresis voltage Fig.22 Turn On Rise time (vs. Css) Fig.23 Turn Off Fall time (vs. Css)
100
10
TURN ON TIME : Ton [ms]
1
1 10 100 1000 10000
Css [pF]
16
14
[V]
12
SSCTL
10
8
6
4
SSCTL VOLTAGE : V
2
0
Fig.24 SSCTL output voltage
℃ VDD = 5.0V
Ta = 25
23456
SUPPLY VOLTAGE : V
[V]
DD
16
14
[V]
12
SSCTL
10
8
6
4
SSCTL VOLTAGE : V
2
0
-40 -20 0 20 40 60 80 100
AMBIENT TEMPERATURE : Ta [
Fig.25 SSCTL output voltage
Tof f
Technical Note
7
6
5
4
3
2
TURN OFF TIME : Toff [us]
1
0
[V]
DD
-40 -20 0 20 40 60 80 100
AMBIENT TEMPERATURE : Ta [℃]
Fig.17 Turn Off Fall time
3.0
V
DD = 5.0V
[V]
2.8
UVLO
2.6
2.4
2.2
UVLO THRESHOLD : V
2.0
]
℃
-40 -20 0 20 40 60 80 100
AMBIENT TEMPERATURE : Ta [
Fig.20 UVLO threshold voltage
100
10
TURN OFF TIME : Toff [us]
1
1 10 100 1000 10000
]
℃
Tof f
Tfd
Tf
DD increasing
V
VDD decreasing
Css [pF]
]
℃
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© 2011 ROHM Co., Ltd. All rights reserved.
5/16
2011.05 - Rev.B
BD6520F,BD6522F
◎BD6522F
80
Ta = 25 ℃
70
60
50
40
30
20
ON RESISTANCE : Ron [mΩ]
10
0
23456
SUPPLY VOLTAGE : V
Fig.26 ON resistance Fig.27 ON resistance
120
DD = 5.0V
V
100
[uA]
DD
80
60
40
20
OPERATING CURRENT : I
0
-40-20 0 20406080100
AMBIENT TEMPERATURE : Ta [℃]
Fig.29 Operating current
(CTRL enable)
2.5
Ta = 25
[V]
2.0
CTRL
1.5
1.0
℃ VDD = 5.0V Ta = 25℃
Low to High
0.5
CTRL INPUT VOLTAGE : V
0.0
23456
SUPPLY VOLTAGE : V
Fig.32 CTRL input voltage
0.4
DD = 5.0V Ta = 25℃ VDD = 5.0V
V
[V]
0.3
CTRLHYS
0.2
0.1
CTRL HYSTERESIS : V
0.0
-40 -20 0 20 40 60 80 100
AMBIENT TEMPERATURE : Ta [
Fig.35 CTRL hysteresis voltage
DD
High to Low
[V]
DD
[V]
Technical Note
80
70
60
50
40
VDD=3.3V
30
20
ON RESISTANCE : Ron [mΩ]
10
0
-40 -20 0 20 40 60 80 100
0.10
Ta = 25
[uA]
0.08
DDST
0.06
0.04
0.02
OPERATING CURRENT : I
0.00
23456
VDD=5.0V
AMBIENT TEMPERATURE : Ta [℃]
℃ VDD = 5.0V
SUPPLY VOLTAGE : V
[V]
DD
Fig.30 Operating current
(CTRL disenable)
2.5
[V]
2.0
CTRL
1.5
1.0
0.5
CTRL INPUT VOLTAGE : V
0.0
-40 -20 0 20 40 60 80 100
AMBIENT TEMPERATURE : Ta [
High to Low
Low to High
]
℃
Fig.33 CTRL input voltage
5
4
3
2
TURN ON TIME : Ton [ms]
1
0
23456
DD
]
℃
SUPPLY VOLTAGE :V
[V]
Fig.36 Turn On time
120
Ta = 25
100
[uA]
DD
OPERATING CURRENT : I
80
60
40
20
0
℃
23456
SUPPLY CURRENT : V
[V]
DD
Fig.28 Operating current
(CTRL enable)
1.0
0.8
[uA]
LEAK
0.6
0.4
0.2
LEAK CURRENT : I
0.0
0 20406080100
AMBIENT TEMPERATURE : Ta [
]
℃
Fig.31 Leak current
0.4
[V]
0.3
CTRLHYS
0.2
0.1
CTRL HYSTERESIS : V
0
23456
SUPPLY VOLTAGE : V
[V]
DD
Fig.34 CTRL hysteresis voltage
5
4
3
2
1
TURN ON TIME : Ton [ms]
0
-40 -20 0 20 40 60 80 100
AMBIENT TEMPERATURE : Ta [
]
℃
Fig.37 Turn On time
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© 2011 ROHM Co., Ltd. All rights reserved.
6/16
2011.05 - Rev.B
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