Datasheet

bq51050B
bq51051B
SLUSB42D –JULY 2012–REVISED JANUARY 2014 www.ti.com
ELECTRICAL CHARACTERISTICS (continued)
Over junction temperature range 0°C ≤ T
J
≤ 125°C and recommended supply voltage (unless otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
SYNCHRONOUS RECTIFIER
I
BAT
at which the synchronous rectifier enters half
I
BAT
200 → 0 mA 80 115 140
synchronous mode, SYNC_EN
I
BAT
mA
Hysteresis for I
BAT,RECT-EN
(full-synchronous mode
I
BAT
0 → 200 mA 25
enabled)
High-side diode drop when the rectifier is in half
V
HS-DIODE
I
AC-VRECT
= 250 mA, and T
J
= 25°C 0.7 V
synchronous mode
EN2
V
IL
Input low threshold for EN2 0.4 V
V
IH
Input high threshold for EN2 1.3 V
R
PD, EN
EN2 pull down resistance 200 kΩ
ADC
0W – 5W received power after calibration
P
owerREC
Received power measurement 0.25 W
of Rx magnetics losses
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