BQ24133_15 datasheet(11/40 Pages) TI

Part #	BQ24133

Description	bq24133 1.6-MHz Synchronous Switched-Mode Li-Ion and Li-Polymer Stand-Alone BatteryCharger With Integrated MOSFETs and Power Path Selector

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bq24133

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SLUSAF7C – DECEMBER 2010 – REVISED APRIL 2015

Electrical Characteristics (continued)

4.5 V

≤ V(PVCC, AVCC) ≤ 17 V, –40°C < TJ + 125°C, typical values are at TA = 25°C, with respect to AGND (unless

otherwise noted)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

INTERNAL PWM

fsw

PWM Switching Frequency

1360

1600

1840

kHz

Dead time when switching between LSFET

tSW_DEAD

Driver Dead Time(1)

30

ns

and HSFET no load

RDS_HI

High-Side MOSFET ON-Resistance

VBTST – VSW = 4.5 V

80

150

m

Ω

RDS_LO

Low-Side MOSFET ON-Resistance

95

160

m

Ω

VBTST – VSW when low-side refresh pulse is

3

requested, VAVCC = 4.5 V

Bootstrap Refresh Comparator Threshold

VBTST_REFRESH

V

Voltage

VBTST – VSW when low-side refresh pulse is

4

requested, VAVCC > 6 V

INTERNAL SOFT START (8 steps to regulation current ICHG)

SS_STEP

Soft start steps

8

step

TSS_STEP

Soft start step time

1.6

3

ms

CHARGER SECTION POWER-UP SEQUENCING

Delay from ISET above 120 mV to start

tCE_DELAY

1.5

s

charging battery

INTEGRATED BTST DIODE

VF

Forward Bias Voltage

IF=120 mA at 25°C

0.85

V

VR

Reverse breakdown voltage

IR=2 µA at 25°C

20

V

LOGIC IO PIN CHARACTERISTICS

VOUT_LO

STAT Output Low Saturation Voltage

Sink Current = 5 mA

0.5

V

VCELL_LO

CELL pin input low threshold, 1 cell

CELL pin voltage falling edge

0.5

V

CELL pin voltage rising for MIN, falling for

VCELL_MID

CELL pin input mid threshold, 2 cells

0.8

1.8

V

MAX

VCELL_HI

CELL pin input high threshold, 3 cells

CELL pin voltage rising edge

2.5

V

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