SI9731 Datasheet, PDF (2/10 Pages) Vishay Siliconix – UP Controlled Battery Charger For 1-Cell Li-ion or 1-Cell to 3-Cell NiCd/NiMH Batteries

Si9731
Vishay Siliconix
ABSOLUTE MAXIMUM RATINGS
Parameter
Symbol
Voltages Referenced to GND = 0 V
V_CHARGER, 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)}
Maximum Input Current (I_CHARGER(max))
Maximum Sink Current
CHARGERPOWER_ON and CHARGERPRESENT Pins
Storage Temperature
Operating Junction Temperature
Power Dissipation (Package)^a
Thermal Impedance (Θ_JA)
16-Pin TSSOP (Q Suffix)^b
16-Pin TSSOP
Notes:
a. Device Mounted with all leads soldered or welded to PC board.
b. Derate 10 mW/°C above 25 °C.
Limit
- 0.3 to 13.5
1.2
5
- 65 to 150
150
1.06
135
Unit
V
A
mA
°C
W
°C/W
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.
RECOMMENDED OPERATING RANGE
Parameter
Voltages Referenced to GND = 0 V
V_CHARGER
Ambient Temperature
V_REFBypass Capacitor
C_OUT
C_IN
See application drawing Figure 1.
Symbol
Limit
Unit
3.0 to 12
V
- 40 to + 85
°C
0.1
2.2
µF
2.2
SPECIFICATIONS
Parameter
Symbol
Test Conditions Unless Specified
- 40 °C < T_A < + 85 °C
3.0 V ≤ V_CHARGER ≤ 6.5 V, V_ON/OFF = 1.5 V
Min^a Typ^b Max^{a Unit}
External Charger Voltage
Under Voltage Lockout on Charger
V_CHARGER
V_UVLO
Rising Edge of Battery Charger
3.0
12
V
2.45 2.6 2.75
UVLO Hysteresis
UVLO_HYST
70 90 110 mV
Regulated Output Voltage 4.1 V_TAP to V_BAT
Regulated Output Voltage 4.1 V_TAP Open
V_TERM+
V_CHARGER = 5.0 V ^{- 10 °C < TA < + 40 °C 4.050 4.1 4.150}
I_BAT+ = 1 mA
- 40 °C < T_A < + 85 °C 4.025 4.1 4.150
MAINCHARGEREN
= 5.0 V
- 10 °C < T_A < + 40 °C
4.150
4.2
4.250
CVMODE = 5.0 V _{- 40 °C < TA < + 85 °C 4.125 4.2 4.250}
Battery Over Voltage Protection
Battery Over Voltage Hysteresis
V_OVP
V_{OVP_HYS}
Rising Edge of V_BAT+
4.70 4.95 5.15
0.11
V
Battery Minimum Operating Voltage
V_BAT(min)
Rising Edge, V_BAT+ Latch
3.32 3.41 3.50
Charger Voltage to Battery Voltage
Comparator Offset
V_{OS_CB}
Comparator
MAINCHARGEEN-High - 0.08 - 0.04 - 0.01
Offset Voltage,
V_CHARGER - V_BAT+ ^{MAINCHARGEEN-Low 0.01 0.04 0.08}
Charger Voltage to Battery Voltage
Comparator Hysteresis
0.07
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Document Number: 71321
S-60869-Rev. B, 22-May-06