BQ24702_16 Datasheet, PDF (8/37 Pages) Texas Instruments – MULTICHEMISTRY BATTERY CHARGER CONTROLLER

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bq24703
SLUS553E – MAY 2003 – REVISED OCTOBER 2007
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ELECTRICAL CHARACTERISTICS (Continued)
–40°C ≤ T_J ≤ 125°C, 7 V_DC ≤ V_CC ≤ 28 V_DC, all voltages relative to V_SS (unless otherwise specified)
PARAMETER
TEST CONDITIONS
MIN
TYP
BATTERY CURRENT OUTPUT AMPLIFIER
G_(TR) Transfer gain
V_I(BAT)
Battery current readback output
voltage (IBAT)
Line rejection voltage
CM Common-mode input range (SRP)
(SRP–SRN) = 5 mV⁽¹⁾
(SRP–SRN) = 5 mV, SRP = 12 V,
V_CC = 18 V, T_J = 25°C
T_J = 25°C
20
100
10
5
V_O(IBA Battery current output voltage
T)
range (IBAT)
0
I_S(O) Output source current (IBAT)
(SRP–SRN) = 100 mV
(SRP–SRN) = 50 mV, T_J = 25°C⁽¹⁾
5
7.1
–3%
Total battery current readback
full-scale accuracy
(SRP–SRN) = 50 mV,
0°C ≤ T_J ≤ 85°C
(SRP–SRN) = 100 mV,
T_J = 25°C⁽¹⁾
–20%
–1.5%
(SRP–SRN) = 100 mV,
0°C < T_J < 85°C
–6%
5-V VOLTAGE REFERENCE
V_ref Output voltage (VREF)
Line regulation
Load regulation
Short circuit current
T_J = 25°C
T_J = 0°C to 85°C
T_J = 40°C to 85°C
T_J = –40°C to 125°C
I_LOAD = 5 mA
1 mA ≤ I_LOAD ≤ 5 mA
4.985
5
4.946
5
4.946
5
4.926
5
0.1
1.1
8
20
5V REF output capacitor
Capacitance
2.2
Output capacitor equivalent
resistor
ESR
5
HALF SUPPLY REGULATOR
V_(HSP) Voltage regulation
I_(SINK) = 20 mA, V_CC = 18 V
I_(SINK) = 1 mA, V_CC = 7 V
V_CC – 11 V_CC – 10.2
(1)
Battery
readback
transfer
gain^GTR
+
VIBAT
(SRP * SRN)
MAX
28
2.5
9.4
2.4%
20%
1.2%
8.5%
5.013
5.013
5.03
5.03
0.37
4
30
10
1000
V_CC – 8.5
1.5
UNIT
V/V
mV
mV/V
V
V
mA
V
V
V
mV/V
mV/mA
mA
μF
mΩ
V
8
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