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SI9731 Fiches technique(PDF) 2 Page - Vishay Siliconix

No de pièce SI9731
Description  UP Controlled Battery Charger For 1-Cell Li-ion or 1-Cell to 3-Cell NiCd/NiMH Batteries
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Fabricant  VISHAY [Vishay Siliconix]
Site Internet  http://www.vishay.com
Logo VISHAY - Vishay Siliconix

SI9731 Fiches technique(HTML) 2 Page - Vishay Siliconix

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Document Number: 71321
S-60869-Rev. B, 22-May-06
Vishay Siliconix
Si9731
Notes:
a. Device Mounted with all leads soldered or welded to PC board.
b. Derate 10 mW/°C above 25 °C.
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation
of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum
rating conditions for extended periods may affect device reliability.
See application drawing Figure 1.
ABSOLUTE MAXIMUM RATINGS
Parameter
Symbol
Limit
Unit
Voltages Referenced to GND = 0 V
VCHARGER, V(CVMODE), V(TRICKLECHARGEEN), V(MAINCHARGEREN), V(ON/OFF),
V(4.1 V_TAP), V(VBAT+), V(CHARGERPOWER_ON), V(CHARGERPRESENT),
V(TRICKLE_VBAT)
V(CHARGERPRESENTIN), V(CHARGERPOWER_ONIN)
- 0.3 to 13.5
V
Maximum Input Current (ICHARGER(max))
1.2
A
Maximum Sink Current
CHARGERPOWER_ON and CHARGERPRESENT Pins
5mA
Storage Temperature
- 65 to 150
°C
Operating Junction Temperature
150
Power Dissipation (Package)a
16-Pin TSSOP (Q Suffix)b
1.06
W
Thermal Impedance (
Θ
JA)
16-Pin TSSOP
135
°C/W
RECOMMENDED OPERATING RANGE
Parameter
Symbol
Limit
Unit
Voltages Referenced to GND = 0 V
VCHARGER
3.0 to 12
V
Ambient Temperature
- 40 to + 85
°C
VREFBypass Capacitor
0.1
µF
COUT
2.2
CIN
2.2
SPECIFICATIONS
Parameter
Symbol
Test Conditions Unless Specified
- 40 °C < TA < + 85 °C
3.0 V
≤ V
CHARGER ≤ 6.5 V, VON/OFF = 1.5 V
Unit
Mina
Typb
Maxa
External Charger Voltage
VCHARGER
3.0
12
V
Under Voltage Lockout on Charger
VUVLO
Rising Edge of Battery Charger
2.45
2.6
2.75
UVLO Hysteresis
UVLOHYST
70
90
110
mV
Regulated Output Voltage 4.1 V_TAP to VBAT
VTERM+
VCHARGER = 5.0 V
IBAT+ = 1 mA
MAINCHARGEREN
= 5.0 V
CVMODE = 5.0 V
- 10 °C < TA < + 40 °C
4.050
4.1
4.150
V
- 40 °C < TA < + 85 °C
4.025
4.1
4.150
Regulated Output Voltage 4.1 V_TAP Open
- 10 °C < TA < + 40 °C
4.150
4.2
4.250
- 40 °C < TA < + 85 °C
4.125
4.2
4.250
Battery Over Voltage Protection
VOVP
Rising Edge of VBAT+
4.70
4.95
5.15
Battery Over Voltage Hysteresis
VOVP_HYS
0.11
Battery Minimum Operating Voltage
VBAT(min)
Rising Edge, VBAT+ Latch
3.32
3.41
3.50
Charger Voltage to Battery Voltage
Comparator Offset
VOS_CB
Comparator
Offset Voltage,
VCHARGER - VBAT+
MAINCHARGEEN-High
- 0.08
- 0.04
- 0.01
MAINCHARGEEN-Low
0.01
0.04
0.08
Charger Voltage to Battery Voltage
Comparator Hysteresis
0.07


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