BQ24083_16 Datasheet, PDF (3/24 Pages) Texas Instruments – ADJUSTABLE BATTERY VOLTAGE

bq24083
www.ti.com .............................................................................................................................................................. SLUS848A – MAY 2008 – REVISED APRIL 2009
ELECTRICAL CHARACTERISTICS
over 0°C ≤ T_J ≤ 125°C and recommended supply voltage (unless otherwise noted)
PARAMETER
TEST CONDITIONS
INPUT CURRENT
I_CC(VCC)
V_CC current
V_CC > V_CC(min)
I_CC(SLP)
Sleep current
Sum of currents into OUT pin,
V_CC < V_(SLP)
I_CC(STBY) Standby current
CE = High, 0°C ≤ T_J ≤ 85°C
I_IB(OUT)
Input current on OUT pin
Charge DONE, V_CC > V_CC(MIN)
VOLTAGE REGULATION V_O(REG) + V_{(DO−MAX)} ≤ V_CC, I_(TERM) < I_O(OUT) ≤ 1 A
V_O(REG)
Output voltage
VBSEL = HI
VBSEL = LO
Voltage regulation accuracy
T_A = 25°C
V_(DO)
Dropout voltage (V_(IN) − V_(OUT))
CURRENT REGULATION
V_O(OUT) = V_O(REG), I_O(OUT) = 1 A
V_O(REG) + V_(DO)) ≤ V_CC
I_O(OUT)
Output current range⁽¹⁾
V_I(OUT) > V_(LOWV),
V_I(IN) − V_I(OUT) > V_(DO), V_CC ≥ 4.5 V
V_(SET)
Output current set voltage
Voltage on ISET pin, V_CC ≥ 4.5 V,
V_I ≥ 4.5 V, V_I(OUT) > V_(LOWV),
V_I − V_I(OUT) > V_(DO)
50 mA ≤ I_O(OUT) ≤ 1 A
K_(SET)
Output current set factor
10 mA ≤ I_O(OUT) < 50 mA
1 mA ≤ I_O(OUT) < 10 mA
PRECHARGE AND SHORT-CIRCUIT CURRENT REGULATION
V_(LOWV)
Precharge to fast-charge transition
threshold
Voltage on OUT pin
Deglitch time for fast-charge to precharge
transition
I_O(PRECHG) Precharge range⁽²⁾
V_(PRECHG) Precharge set voltage
TERMINATION DETECTION
I_(TERM)
Charge termination detection range⁽³⁾
V_(TERM) Charge termination detection set voltage
t_TRMDET Deglitch time for termination detection
V_CC(MIN) ≥ 4.5 V, t_FALL = 100 ns,
10-mV overdrive,
V_I(OUT) decreasing below threshold
0 V < V_I(OUT) < V_(LOWV), t < t_(PRECHG)
Voltage on ISET pin, V_O(REG) = 4.2 V,
0 V < V_I(OUT) > V_(LOWV), t < t_(PRECHG)
V_I(OUT) > V_(RCH), t < t_(TRMDET)
Voltage on ISET pin, V_O(REG) = 4.2 V,
V_I(OUT) > V_(RCH), t < t_(TRMDET)
V_CC(MIN) ≥ 4.5 V, t_FALL = 100 ns
charging current decreasing below
10-mV overdrive
(1) See Equation 2 in the Function Description section.
(2) See Equation 1 in the Function Description section.
(3) See Equation 4 in the Function Description section.
MIN TYP MAX UNIT
1.2
2 mA
2
5
150 ^µA
1
5
−0.35%
−1%
4.06
V
4.2
0.35%
1%
350
500 mV
50
1000 mA
2.463
307
296
246
2.5 2.538 V
322
337
320
346
320
416
2.8
3
3.2 V
250
375
500 ms
5
100 mA
240
255
270 mV
5
100 mA
235
250
265 mV
250
375
500 ms
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