SI9730 Datasheet, PDF (2/14 Pages) Vishay Siliconix – Dual-Cell Lithium Ion Battery Control IC

Si9730
Vishay Siliconix
ABSOLUTE MAXIMUM RATINGS
V_M . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . V_DD −15 V to V_DD +15 V
V_DD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . V_SS −0.3 V to V_SS +12 V
V_C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . V_SS −0.3 V to V_DD +0.3 V
I_S (V_SS w V_M) . . . . . . . . . . . . . . . . . . . . . . . . . . . . V_M −0.3 V to V_DD +0.3 V
(V_M w V_SS ) . . . . . . . . . . . . . . . . . . . . . . . . . . V_SS −0.3 V to V_DD +0.3 V
Maximum Operating Junction Temperature . . . . . . . . . . . . . . . . . . . . . . 125_C
Power Dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200 mW
Thermal Impedance (P_QJA) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80_C/W
Storage Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −55 to 150_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.
RECOMMENDED OPERATING RANGE
C_VC t10 pF from V_C toV_DD andV_SS , Total
C_D . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Open to 1.0 mF
R_IS series resistance to sense resistor . . . . . . . . . . . . . . . . . . . . . . . . t27 kW
DCO Load Capacitance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 to 2000 pF
V_DD to V_SS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 V
V_DD to V_M . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 V
Operating Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . −25 to 85_C
SPECIFICATIONS
Parameter
Power Supply
Supply Current, Charging Operation
Supply Current, Normal Operation
Undervoltage Lockout Threshold
V_M Leakage Current
V_M Operating Current
Control Logic
DCO Output High Voltage
DCO Rise Time (10% to 80%)
DCO Fall Time (80% to 10%)
DCO Output Low Voltage
Analog Section
Current-Limit Comparator Trip Point
Current-Limit
Comparator Temperature Coefficient
Current-Limit
Comparator Response Time
Current Limit Comparator
Input Bias Current
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2
Symbol
I_{DD_C}
I_DD
I_{DD_UVL}
V_UVL
I_{VM_UVL}
I_VM
V_OH
t_r
t_f
V_OL
V_ILIMIT
dV_ILIMIT/dT
t_ILIMIT
I_IS
Test Condition
Unless Otherwise Specified
Limits
T_A = −25 to 85_C
Min^a Typ^b Max^a
Unit
V_C1 = V_C2 = 2.6 V, V_DD − V_M = 8.4 V
V_C1 = V_C2 = 4.05 V, V_M = V_SS
V_M = V_DD,V_C1 = V_C2 = 1.7 V
Measured at V_DD − V_SS (Falling)
V_C1 = V_C2, V_DD − V_M = 5.5 V
V_C1 = V_C2 = 1.7 V, V_DD = V_M
V_C1 = V_C2 = 2.6 V, V_DD − V_M = 8.4 V
60
30
mA
1
3.5
3.7
4.0
V
1
30
mA
I_OH = −10 mA, V_C1 = V_C2 = 3.3 V
V_DD − V_M = 6.6 V
V_C1 = 2 V, V_C2 = 2.4 V
V_DD − V_M = 8.4 V C_L = 500 pF, DCO to V_SS
I_OL = 10 mA
V_M = V_DD
V_C1 = 2 V, V_C2 = 2.4 V
V_M= V_SS
V_C1 = V_C2 = 4.4 V, I_S = V_DD
V_DD − 0.1
V
7.5
ms
1
V_SS +0.4
V
V_M +0.52
V_C1 = V_C2 =4.05 V, V_M = V_SS + 0.25 V
I_S Rising, T_A = 25_C
V_C1 = V_C2 =3.3 V, V_M = V_SS + 0.25 V
C_L = 50 pF, DCO to V_SS, See Figure 2
V_C1 = V_C2 =3.3 V, V_DD = V_M, V_IS ^{= VSS}
25.5
28
0.18
−125
32
mV
%/_C
25
ms
nA
Document Number: 70658
S-40135—Rev. F, 16-Feb-04