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PDF MB3802 Data sheet ( Hoja de datos )
| Número de pieza | MB3802 | |
| Descripción | Power Management Switch | |
| Fabricantes | Fujitsu Media Devices | |
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Hay una vista previa y un enlace de descarga de MB3802 (archivo pdf) en la parte inferior de esta página. Total 15 Páginas | ||
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FUJITSU SEMICONDUCTOR
DATA SHEET
DS04-27601-2E
ASSP For Power Supply Applications
Power Management Switch
MB3802
s DESCRIPTION
The MB3802 is a power management switch incorporating two switch circuits with extremely low ON resistance.
NO diode is required because the switch block is configured with an N-ch MOS to prevent reverse current at
switch OFF.
The MB3802 starts at a very low voltage (typical VIN > 2.2V) and a stable ON resistance is obtained irrespective
of the switching voltage because the internal DC/DC converter applies the optimum voltage for the N-ch MOS
gate at switch ON.
Moreover, the load-side capacitor is discharged at switch OFF, and the power supply for various power supply
systems is switched efficiently.
s FEATURES
• Extremely low ON resistance:
RON = 0.12 Ω (typical)
RON = 0.06 Ω (typical at parallel connection)
• Reverse current protection at load side at switch OFF
• Operation start at low input voltage: VIN > 2.2 V (typical)
• Low power consumption
At switch OFF: IIN (input voltage) = 0 µA, VIN = 0 V
At switch ON: IIN = 230 µA, VIN = 5 V
• Load discharge function
• External control of ON/OFF time
• Break-before-make operation
s PACKAGE
16-pin plastic SOP
(FPT-16P-M04)
1 page  
MB3802
s ELECTRICAL CHARACTERISTICS
1. DC Characteristics
Parameter
Input current
Swiching resistance
Switch-OFF leak current
Input threshold voltage
Input hysteresis width
Switch resistance
Switch charge resistance
Input voltage to switch charge
circuit
Symbol
Condition
IIN1
IIN2
RON1
RON2
IL
VTH1
VTH2
VHYS
RON
RDCG1
RDCG2
VIN = 0 V
VIN = 3 V
VIN = 5 V
VIN = 3 V, ISW = 0.5 A,
VSWIN = 3 V
VIN = 5 V, ISW = 0.5 A,
VSWIN = 3 V
VIN = 0 V, VSWIN = 6 V
At switch ON
At switch OFF
—
VIN = 3 V, 5 V, ISW = 0.5 A
Ta = –40°C to +75°C
VSWOUT = 3 V, VDCG = 3 V
VSWOUT = 5 V, VDCG = 5 V
IDCG VDCG = 5 V
(Ta = +25°C)
Ratings
Min Typ Max
Unit
— 0 — µA
— 100 200 µA
— 230 460 µA
— 120 160 mΩ
— 130 175 mΩ
— 0.5 2.0
2.0 2.2 2.4
1.9 2.1 2.3
50 100 —
µA
V
V
mV
— — 210 mΩ
— 750 1500 Ω
— 500 1000 Ω
—0
2 µA
2. AC Characteristics
Parameter
Switch-ON time
Switch OFF time
Switch ON/OFF time lag
Symbol
Condition
tON1
tON2
tOFF1
tOFF2
tHYS1
tHYS2
VIN = 0V → 3V, VSWIN = 3V
VIN = 0V → 5V, VSWIN = 5V
VIN = 3V → 0V, VSWIN = 3V
VIN = 5V → 0V, VSWIN = 5V
VIN = 3V / 0V, VSWIN = 3V
VIN = 5V / 0V, VSWIN = 5V
(Ta = +25°C)
Ratings
Min Typ Max
Unit
20 300 900
µs
20 150 450
µs
5
60 180
µs
5
30 150
µs
10 240 720
µs
10 120 300
µs
5
5 Page 
MB3802
s TYPICAL PERFORMANCE CHARACTERISTICS
ON Resistance (Input-voltage dependence)
300
ISW = 1 A
250
200
VSWIN = 6 V
VSWIN = 5 V
VSWIN = 4 V
VSWIN = 3 V
VSWIN = 2 V
VSWIN = 1 V
VSWIN = 0 V
ON Resistance (Load current dependence)
150
VSWIN = 5 V,VIN = 3 V
VSWIN = 5 V,VIN = 5 V
100
VSWIN = 3 V,VIN = 3 V
150 VSWIN = 3 V,VIN = 5 V
100
2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0
Input voltage (V)
ON Resistance
(Temperature dependence: SWIN = 3 V)
150
VSWIN = 3 V
ISW = 1 A
50
0
0.2 0.4 0.6 0.8
Load current (A)
1.0 1.2.
ON Resistance
(Temperature dependence: SWIN = 5 V)
150
VSWIN = 5 V
ISW = 1 A
100 100
VIN = 3 V
VIN = 5 V
50
–25 0
25 50 75
Ta (°C)
Switch-ON time
(Input voltage characteristic: SWIN = 3 V)
500
VSWIN = 3 V
ISW = 1 A
400
300
200 Ta = –25°C
Ta = +25°C
100
Ta = +75°C
0
3.0 3.5 4.0 4.5 5.0 5.5 6.0
Input voltage (V)
50
–25
VVIN = 3 V
VVIN = 5 V
0 25
Ta (°C)
50
75
Switch-ON time
(Input voltage characteristic: SWIN = 5 V)
500
VSWIN = 5 V
ISW = 1 A
400
300
200
Ta = –25°C
Ta = +25°C
100
Ta = +75°C
0
3.0 3.5 4.0 4.5 5.0 5.5 6.0
Input voltage (V)
(Continued)
11
11 Page | ||
| Páginas | Total 15 Páginas | |
| PDF Descargar | [ Datasheet MB3802.PDF ] | |
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