BQ24262_15 Datasheet, PDF (15/56 Pages) Texas Instruments – bq2426x 3-A, 30-V, Host-Controlled Single-Input, Single-Cell Switched-Mode Li-Ion Battery Charger With Power-Path Management and USB-OTG Support

Not Recommended for New Designs : bq24260, bq24261
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Functional Block Diagram (continued)
PMID
IN
bq24260, bq24261, bq24261M, bq24262
SLUSBU4D – DECEMBER 2013 – REVISED APRIL 2015
4.8-V
Reference
DRV
V_BOOST Amp
+
Q1
V_{IN_BOOST}
V_{BURST_ENT}
+
Burst Mode Enter
Comparator
+
DC-DC
CONVERTER
PWM LOGIC
Low Side Current
Limit Comparator
AND
COMPENSATION
I_BLIMITI
V_DRV
V_{BURST_EXT}
Q2
Burst Mode Exit
Comparator
V_BOOSTSHRT
Boost Short Circuit
Comparator
V_BOOSTOVP
V_BOOST
OVP Comparator
Battery SC Comparator
V_BAT
V_{BIAS Battery Short}
+
Q3
Circuit
I_LIM(DISCH)
CD
SDA
SCL
Hi-Z
Mode
2
IC
interface
STAT
Digital Control
BOOT
SW
PGND
SYS
BAT
BGATE
INT
TS
Figure 8. Block Diagram in Boost Mode
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