BQ24150A Datasheet, PDF (28/41 Pages) Texas Instruments – Fully Integrated Switch-Mode One-Cell Li-Ion Charger With Full USB Compliance and USB-OTG Support

bq24150A
bq24151A
SLUS931 – APRIL 2009 ..................................................................................................................................................................................................... www.ti.com
SYMBOL
PARAMETER
t_RDA
Rise time of SDA signal
t_FDA
Fall time of SDA signal
t_SU; t_STO Setup time for STOP condition
C_B
Capacitive load for SDA and SCL
TEST CONDITIONS
Standard mode
Fast mode
High-speed mode, C_B – 100 pF max
High-speed mode, C_B – 400 pF max
Standard mode
Fast mode
High-speed mode, C_B – 100 pF max
High-speed mode, C_B – 400 pF max
Standard mode
Fast mode
High-speed mode
MIN
20+0.1C_B
20+0.1C_B
10
20
20+0.1C_B
20+0.1C_B
10
20
4
600
160
TYP
MAX
1000
300
80
160
300
300
80
160
400
UNIT
ns
ns
µs
ns
pF
I²C Timing Diagrams
SDA
t_f
SCL
S
t_LOW
t_r
t_SU;DAT
t_f
t_HD;STA
t_SP
t_r
t_BUF
t_HD;STA
t_HD;DAT
t_HIGH
t_SU;STA
Sr
t_SU;STO
P
S
Figure 32. Serial Interface Timing for F/S Mode
Sr
t_fDA
t_rDA
Sr P
SDAH
t_SU;STA
t_HD;DAT
t_HD;STA
t_SU;DAT
t_SU;STO
SCLH
t_rCL1
t_fCL1
(1)
t_HIGH t_LOW
= MCS current source pull-up
t_rCL1
t_{LOW tHIGH}
t_rCL1
(1)
= R_P resister pull-up
Figure 33. Serial Interface Timing for H/S Mode
28
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