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| BQ24314 Datasheet, PDF (4/13 Pages) Texas Instruments – OVERVOLTAGE AND OVERCURRENT PROTECTION IC AND Li+ CHARGER FRONT-END PROTECTION IC | |||
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bq24314
bq24316
SLUS763 â JULY 2007
PACKAGE DISSIPATION RATINGS
PART NO.
BQ24314DSG
BQ24316DSG
BQ24314DSJ
BQ24316DSJ
PACKAGE
2Ã2 SON
4Ã3 SON
RθJC
RθJA
TA ⤠25°C
POWER RATING
www.ti.com
DERATING FACTOR
TA > 25°C
RECOMMENDED OPERATING CONDITIONS
over operating free-air temperature range (unless otherwise noted)
VIN
IIN
IOUT
RILIM
TJ
Input voltage range
Input current, IN pin
Output current, OUT pin
OCP Programming resistor
Junction temperature
MIN
3.3
16.67
0
MAX
26
1.5
1.5
83.33
125
UNIT
V
A
A
kâ¦
°C
ELECTRICAL CHARACTERISTICS
over junction temperature range 0°C ⤠TJ ⤠125°C and recommended supply voltage (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN TYP
IN
VUVLO
Under-voltage lock-out, input
power detected threshold
CE = Low or High, VIN: 2V â 3V
2.5
VHYS-UVLO
TDGL(PGOOD)
Hysteresis on UVLO
CE = Low or High, VIN: 3V â 2V
Deglitch time, input power detected CE = Low or High. Time measured from VIN
status
0V â 5V 1μs rise-time, to output turning ON
200
8
IDD
Operating current
CE = Low, No load on OUT pin,
VIN < 6V
600
ISTDBY
Standby current
CE = High, VIN < 6V
55
INPUT TO OUTPUT CHARACTERISTICS
VDO
Drop-out voltage IN to OUT
INPUT OVERVOLTAGE PROTECTION
CE = Low, VIN = 5V, IOUT = 1A
VOVP
Input overvoltage protection
threshold (bq24314)
Input overvoltage protection
threshold (bq24316)
5.67 5.85
6.60 6.80
tPD(OVP)
Input OV propagation delay
CE = Low
VHYS-OVP
Hysteresis on OVP
CE = Low or High, VIN: 7.5V â 5V
60
tON(OVP)
Recovery time from input
overvoltage condition
CE = Low, Time measured from
VIN 7.5V â 5V, 1μs fall-time
8
INPUT OVERCURRENT PROTECTION
IOCP
Input overcurrent protection
threshold range
CE = Low, RILIM = 16.67k⦠to 83.33kâ¦
300
ÎIOCP
IOCP
OCP threshold accuracy
Input overcurrent protection
threshold
CE = Low, RILIM = 16.67k⦠to 83.33kâ¦
CE = Low, RILIM = 25kâ¦
±10 %
930 1000
KILIM
tBLANK(OCP)
Current limit programming:
IOCP = KILIM ÷ RILIM
Blanking time, input overcurrent
detected
CE = Low
25000
176
tON(OCP)
Recovery time from input
overcurrent condition
CE = Low
64
BATTERY OVERVOLTAGE PROTECTION
MAX UNIT
2.8 V
300 mV
ms
μA
μA
300 mV
6.00 V
7.00 V
1 μs
mV
ms
1500 mA
1070 mA
Aâ¦
μs
ms
4
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Copyright © 2007, Texas Instruments Incorporated
Product Folder Link(s): bq24314 bq24316
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