Fujitsu MB3891 manual Efficiency vs. power supply voltage Vsimout Chargepump, Voltage Vsimout

Page 19

MB3891

Efficiency η (%)

Efficiency vs. power supply voltage

 

(VSIMOUT Chargepump)

100

 

 

 

 

Ta = +25 °C

 

90

 

 

 

VSIM-ON = “H”

 

 

 

80

 

 

 

SIMPROG = “L”

 

 

70

 

 

 

 

 

 

60

 

 

 

 

 

 

50

 

 

 

 

 

 

40ILOAD = −10 mA

20ILOAD = −1 mA

0

 

 

4.5

5.0

5.5

3.0

3.5

4.0

Efficiency vs. power supply voltage (VSIMOUT Chargepump)

 

100

 

 

 

Ta = +25 °C

 

 

90

 

 

 

 

 

 

 

 

VSIM-ON = “H”

 

(%)

80

 

 

 

SIMPROG = “H”

70

 

ILOAD = −10 mA

 

 

η

60

 

 

 

 

 

Efficiency

 

 

 

 

 

50

 

 

 

 

 

40

ILOAD = −1 mA

 

 

 

30

 

 

 

 

 

20

 

 

 

 

 

 

 

 

 

 

 

 

10

 

 

 

 

 

 

0

 

 

4.5

5.0

5.5

 

3.0

3.5

4.0

Power supply voltage VCC-VSIM(V)

Power supply voltage VCC-VSIM(V)

Efficiency vs. load current

Efficiency vs. load current

(VSIMOUT Chargepump)

(VSIMOUT Chargepump)

 

100

 

Ta = +25 °C

 

 

 

100

 

 

 

 

 

90

 

 

 

 

90

 

 

 

 

 

 

VBAT = VCC-VSIM = 3.6 V

 

VCC-VSIM = 3.1 V

 

 

 

80

 

 

80

 

 

(%)

 

VSIM-ON = “H”

 

(%)

 

 

 

 

 

 

 

 

70

 

SIMPROG = “L”

 

70

 

 

 

 

η

60

VCC-VSIM = 5.5 V

 

 

η

60

VCC-VSIM = 3.6 V

 

 

Efficiency

 

 

Efficiency

 

 

50

VCC-VSIM = 3.1 V

 

 

50

 

VCC-VSIM = 5.5 V

 

 

 

 

 

 

 

 

 

 

40

 

 

 

 

 

40

 

 

 

 

VCC-VSIM = 3.6 V

 

 

 

 

 

 

 

30

 

 

 

30

 

Ta = +25 °C

 

 

 

 

 

 

 

 

 

 

 

 

20

 

 

 

 

 

20

 

VBAT = VCC-VSIM = 3.6 V

 

10

 

 

 

 

 

10

 

VSIM-ON = “H”

 

 

 

 

 

 

 

 

SIMPROG = “H”

 

 

0

 

 

 

 

 

0

 

 

 

5

10

15

20

 

5

10

15

20

 

0

 

0

Load current ILOAD (mA)

Load current ILOAD (mA)

 

 

Output voltage rising waveforms

 

 

 

Input voltage VSIM-ON(V)

 

Input voltage VSIM-ON(V)

 

 

(VSIMOUT Chargepump)

 

 

 

 

 

10

 

 

 

 

 

 

 

 

 

 

 

 

10

5

 

 

 

 

 

VSIM-ON

 

 

 

voltage VSIMOUT (V)

5

0

 

 

 

 

 

VSIMOUT

 

 

5

0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4

 

 

 

 

 

 

 

 

 

 

 

 

3

 

 

 

 

 

 

 

 

 

 

 

 

2

 

 

 

 

 

Ta = +25 °C

 

 

 

 

1

 

 

 

 

 

 

VBAT = VCC-VSIM = 3.6 V

Output

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SIMPROG = “H”

 

 

 

0

 

 

 

 

 

 

 

VSIMOUT = 510 Ω

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0.0

0.5

1.0

1.5

2.0

2.5

3.0

3.5

4.0

4.5

5.0

 

 

 

 

t (ms)

Output voltage rising waveforms (VSIMOUT Chargepump)

 

 

 

 

 

 

VSIM-ON

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(V)

 

 

 

 

 

 

VSIMOUT

 

 

3

VSIMOUT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

voltage

 

 

 

 

 

 

 

 

 

 

 

2

 

 

 

 

Ta = +25 °C

 

 

 

 

1

 

 

 

 

VBAT = VCC-VSIM = 3.6 V

Output

 

 

 

 

 

 

 

 

 

SIMPROG = “L”

 

 

 

0

 

 

 

 

VSIMOUT = 510 Ω

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0.0

0.5

1.0

1.5

2.0

2.5

3.0

3.5

4.0

4.5

5.0

 

 

t (ms)

(Continued)

19

Image 19
Contents Pin plastic Lqfp FPT-64P-M03 FeaturesDescription PackageTOP View PIN AssignmentPIN Description Pin No Symbol DescriptionsSW1-INPUT VBAT4CONT4 SW1-OUTPUTBlock Diagram Recommended Operating Conditions Parameter Symbol Conditions Rating Unit MinParameter Symbol Conditions Value Unit Min Absolute Maximum RatingsParameter Symbol Pin No Conditions Value Unit Min Typ Electrical CharacteristicsParameter Symbol Pin Conditions Value Unit Min Parameter Symbol Pin No Conditions Value Unit Min ΔREF-OUT LDO6 ΔV-BACKUP BackupRMS Backup = 1 ∝F ΔVBAT2Parameter Symbol Pin No Conditions Value Unit Min Typ Max SIM Typical Characteristics Frequency f Hz Dropout voltage vs. load current LDO1 Load current I Load mA Ambient temperature Ta CPower supply Voltage VOUT1 Ripple rejection vs. frequency LDO1 DBmIC internal Measurement diagramWaveform at rapid change of output load LDO1IC internal LDO2 NPNIC internal LDO1 Waveform at rapid change of output load LDO2Power supply voltage VCC-VSIMV PowerSupply Output voltage vs. load current Vsimout Chargepump Output voltage rising waveforms Vsimout Chargepump Efficiency vs. power supply voltage Vsimout ChargepumpEfficiency Voltage VsimoutOutput voltage waveforms Vsimout Chargepump Input voltage V Upio Input voltage V Simio Output voltage Vsimout mVVoltage Output Output voltage vs. ambient temperature SIM InterfaceDissipation Functional Description Setting the Xpowergood Time Input Operation Timing ChartBattery controlled OUT1 hold Backup Uvlo onApplication Example MB3891Part number Package Remarks Usage PrecautionsOrdering Information Do not apply negative voltagesDimensions in mm inches Package DimensionFujitsu Limited F64009S-3C-6 F0007 Fujitsu Limited