Datasheet

bq24630
SLUS894A –JANUARY 2010– REVISED OCTOBER 2011 www.ti.com
ELECTRICAL CHARACTERISTICS (continued)
5 V ≤ V
VCC
≤ 28 V, 0°C < T
J
< 125°C, typical values are at T
A
= 25°C, with respect to GND unless otherwise noted
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
PWM DRIVERS TIMING
Dead time when switching between LSD and HSD, no
Driver dead time 30 ns
load at LSD and HSD
PWM OSCILLATOR
V
RAMP_HEIGHT
PWM ramp height As percentage of VCC 7 %
PWM switching frequency
(2)
255 300 345 kHz
INTERNAL SOFT START (8 Steps to Regulation Current ICHG)
Soft-start steps 8 step
Soft-start step time 1.6 ms
CHARGER SECTION POWER-UP SEQUENCING
Delay from when adapter is detected to when the charger
Charge-enable delay after power up 1.5 s
is allowed to turn on
LOGIC IO PIN CHARACTERISTICS
V
IN_LO
CE input low threshold voltage 0.8 V
V
IN_HI
CE input high threshold voltage 2.1 V
V
BIAS_CE
CE input bias current V = 3.3 V (CE has internal 1-MΩ pulldown resistor) 6 μA
STAT1, STAT2, PG output low saturation
V
OUT_LO
Sink current = 5 mA 0.5 V
voltage
I
OUT_HI
Leakage current V = 32 V 1.2 µA
(2) Verified by design
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