BQ24100_08 Datasheet, PDF (3/38 Pages) Texas Instruments – SYNCHRONOUS SWITCHMODE, LI-ION AND LI-POLYMER CHARGE-MANAGEMENT IC WITH INTEGRATED POWER FETs (bqSWITCHER™)

bq24100, bq24103, bq24103A
bq24104, bq24105, bq24108, bq24109
bq24113, bq24113A, bq24115
www.ti.com .................................................................................................................................................. SLUS606N – JUNE 2004 – REVISED NOVEMBER 2008
PACKAGE DISSIPATION RATINGS
PACKAGE
RHL ⁽¹⁾
θ_JA
46.87°C/W
θ_JC
2.5°C/W
T_A < 40°C
POWER RATING
1.81 W
DERATING FACTOR
ABOVE T_A = 40°C
0.021 W/°C
(1) This data is based on using the JEDEC High-K board, and the exposed die pad is connected to a copper pad on the board. This is
connected to the ground plane by a 2x3 via matrix.
RECOMMENDED OPERATING CONDITIONS
Supply voltage, V_CC and IN (Tie together)
Operating junction temperature range, T_J
MIN
4.35 ⁽¹⁾
–40
NOM
MAX
16 ⁽²⁾
125
UNIT
V
°C
(1) The IC continues to operate below V_min, to 3.5 V, but the specifications are not tested and not specified.
(2) The inherent switching noise voltage spikes should not exceed the absolute maximum rating on either the IN or OUT pins. A tight layout
minimizes switching noise.
ELECTRICAL CHARACTERISTICS
T_J = 0°C to 125°C and recommended supply voltage range (unless otherwise stated)
PARAMETER
TEST CONDITIONS
MIN
TYP
INPUT CURRENTS
V_CC > V_CC(min), PWM switching
10
I_(VCC)
V_CC supply current
V_CC > V_CC(min), PWM NOT switching
V_CC > V_CC(min), CE = HIGH
0°C ≤ T_J ≤ 65°C, V_I(BAT) = 4.2 V,
V_CC < V_(SLP) or V_CC > V_(SLP) but not in charge
I_(SLP)
Battery discharge sleep current, (SNS,
BAT, OUT, FB pins)
0°C ≤ T_J ≤ 65°C, V_I(BAT) = 8.4 V,
V_CC < V_(SLP) or V_CC > V_(SLP) but not in charge
0°C ≤ T_J ≤ 65°C, V_I(BAT) = 12.6 V,
V_CC < V_(SLP) or V_CC > V_(SLP) but not in charge
VOLTAGE REGULATION
CELLS = Low, in voltage regulation
4.2
Output voltage, bq24103/03A/04/13/13A
V_OREG
CELLS = High, in voltage regulation
8.4
Output voltage, bq24100/08/09
Operating in voltage regulation
4.2
V_IBAT
Feedback regulation REF for bq24105/15
only (W/FB)
I_IBAT = 25 nA typical into pin
2.1
Voltage regulation accuracy
T_A = 25°C
–0.5%
–1%
CURRENT REGULATION - FAST CHARGE
I_OCHARGE Output current range of converter
V_LOWV ≤ V_I(BAT) < V_OREG,
V_(VCC) - V_I(BAT) > V_(DO-MAX)
150
100 mV ≤ V_IREG≤ 200 mV,
MAX UNIT
mA
5
315
µA
3.5
5.5
µA
7.7
V
V
0.5%
1%
2000
mA
VIREG
+
1V
RSET1
1000,
V_IREG
Voltage regulated across R_(SNS) Accuracy
Programmed Where
5 kΩ ≤ RSET1 ≤ 10 kΩ, Select RSET1 to
program V_IREG,
V_{IREG(measured)} = I_OCHARGE + R_SNS
(–10% to 10% excludes errors due to RSET1
and R_(SNS) tolerances)
V_(ISET1)
Output current set voltage
V_(LOWV) ≤ V_I(BAT) ≤ V_O(REG),
V_(VCC) ≤ V_I(BAT) × _V(DO-MAX)
K_(ISET1)
Output current set factor
V_LOWV ≤ V_I(BAT) < V_O(REG) ,
V_(VCC) ≤ V_I(BAT) + _V(DO-MAX)
PRECHARGE AND SHORT-CIRCUIT CURRENT REGULATION
V_LOWV
Precharge to fast-charge transition voltage
threshold, BAT,
bq24100/03/03A/04/05/08/09 ICs only
–10%
1
1000
68
71.4
10%
V
V/A
75 %V_O(REG)
Copyright © 2004–2008, Texas Instruments Incorporated
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