BQ24400_16 Datasheet, PDF (5/27 Pages) Texas Instruments – Programmable NiCd/NiMH Fast-Charge Management IC

bq24400
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SLUS498A – SEPTEMBER 2001 – REVISED FEBRUARY 2010
ABSOLUTE MAXIMUM RATINGS⁽¹⁾
VALUE
UNIT
V_CC
V_T
T_OPR
T_STG
T_SOLDER
V_CC relative to V_SS
DC voltage applied on any pin, relative to V_SS
Operating ambient temperature
Storage temperature
Soldering temperature (10 s max.)
–0.3 to 7
V
–0.3 to V_CC
V
–20 to 70
°C
–40 to 125
°C
260
°C
(1) Permanent device damage may occur if Absolute Maximum Ratings are exceeded. Functional operation should be limited to the
Recommended DC Operating Conditions detailed in this data sheet. Exposure to conditions beyond the operational limits for extended
periods of time may affect device reliability.
DC THRESHOLDS⁽¹⁾
T_A = T_OPR; V_CC = 5V ±20% (unless otherwise specified)
PARAMETER
TEST CONDITIONS
V_TCO
V_HTF
V_LTF
V_MCV
V_LBAT
PVD
Temperature cutoff
High-temperature fault
Low-temperature fault
Maximum cell voltage
Minimum cell voltage
BAT input change for PVD detection
Voltage at the TS pin
Voltage at the TS pin
Voltage at the TS pin
Voltage at the BAT pin
Voltage at the BAT pin
Voltage at the BAT pin
V_SNSHI
V_SNSLO
V_SLP
High threshold at SNS
Low threshold at SNS
Sleep-mode input threshold
Voltage at the SNS pin
Voltage at the SNS pin
Voltage at the BAT pin
(1) All voltages are relative to V_SS except as noted.
TYPICAL
0.225 × V_CC
0.25 × V_CC
0.5 × V_CC
2.00
950
3.8
50
–50
V_CC–1
TOLERANCE
±5%
±5%
±5%
±2.5%
±5%
±20%
±10
±10
±0.5
UNIT
V
V
V
V
mV
mV
mV
mV
V
RECOMMENDED DC OPERATING CONDITIONS
over operating free-air temperature range (unless otherwise noted)
V_CC
I_CC
I_CCS
V_TS
V_OH
V_OL
I_OZ
I_snk
R_MTO
C_MTO
Supply voltage
Supply current
Sleep current
Thermistor input
Output high input
Output low input
High-impedance leakage current
Sink current
Charge timer resistor
Charge timer capacitor
TEST CONDITIONS
Exclusive of external loads
V_BAT = V_SLP
V_TS < 0.5 V prohibited
MOD, I_OH = 10 mA
MOD, LED, I_OL = 10 mA
LED
MOD, LED
MIN
4
0.5
V_CC–0.4
2
0.001
TYP
MAX UNIT
5
6
V
0.5
1 mA
5
µA
VCC
V
V
0.2
V
5
µA
20 mA
250
kΩ
1
µF
IMPEDANCE
R_BAT
R_TS
R_SNS
Battery input impedance
TS input impedance
SNS input impedance
PARAMETER
MIN
TYP
MAX
UNIT
10
MΩ
10
MΩ
10
MΩ
TIMING
T_A = T_OPR; V_CC = 5 V ±20% (unless otherwise noted)
PARAMETER
d_MTO
f_TRKL
MTO time-base variation
Pulse-trickle frequency
MIN
–5%
0.9
TYP
MAX
UNIT
5%
1
1.1
Hz
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