BQ29400_16 Datasheet, PDF (3/16 Pages) Texas Instruments – VOLTAGE PROTECTION

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Not Recommended for New Designs:
bq29400, bq29400A, bq29405
bq29400, bq29400A
bq29401, bq29405
SLUS568C – JULY 2003 – REVISED SEPTEMBER 2005
ELECTRICAL CHARACTERISTICS
over recommended operating free-air temperature range, T_A = 25°C (unless otherwise noted)⁽¹⁾
PARAMETER
TEST CONDITION
V_(OA)
V_(PROTECT)
V_hys
I_I
t_D1
I_{(CD_dis)}
I_CC
V_(OUT)
I_OH
I_OL
Over voltage detection accuracy
Over voltage detection
voltage ⁽¹⁾
Over voltage detection
hysteresis ⁽¹⁾
bq29400
bq2940A
bq29401
bq29405
Input current
Over voltage detection delay time
CD GND clamp current
Supply current
OUT pin drive voltage
High-level output current
Low-level output current
T_A = –20°C to 85°C
V2, V3 , VC4 input = VC1–VC2 = VC2–VC3 = VC3–VC4
= VC4–GND = 3.5 V
CD = 0.22 µF
CD = 1 V
VC1–VC2 = VC2–VC3 = VC3–VC4 = VC4–GND = 3.5 V
(see Figure 1)
VC1 = VC2 = VC3 = VC4 = VC3–VC4 = VC4–GND = 2.3
V (see Figure 1)
VC1–VC2 = VC2–VC3 = VC3–VC4 = VC4–GND =
V_(PROTECT)MAX, VDD = VC1, IOH = 0 mA
VC1=VC2=VC3=VC4=V_(PROTECT)MAX, VDD=4.3V,
T_A= 0°C to 70°C, IOH = – 40µA
OUT = 3V, VC1–VC2 = VC2–VC3 = VC3–VC4 =
VC4–GND = 4.7 V
OUT = 0.1 V VC1–VC2 = VC2–VC3 = VC3–VC4 =
VC4–GND = 3.5 V
MIN NOM MAX UNIT
25 35
mV
25 50
4.35
4.40
V
4.45
4.65
300
mV
0.3 µA
1.0 1.5 2.0 S
5
12
µA
2.0 3.0
µA
1.5 2.5
7
V
1.5 2.0 2.5 V
–1
mA
5
µA
(1) Levels of the over-voltage detection and the hysteresis can be adjusted. For assistance contact Texas Instruments sales representative.
I_CC
V1
1 VC1
I_IN
2 VC2
V2
I_IN
3 VC3
V3
4 _GND
V4
OUT ⁸
VDD 7
CD 6
VC4 5
I_IN
Figure 1. I_CC, I_IN Measurement (TSSOP Package)
MSOP
(DTC)
8
7
6
5
4
TERMINAL
TSSOP
(PW)
1
2
3
4
5
NAME
VC1
VC2
VC3
GND
VC4
Terminal Functions
DESCRIPTION
Sense voltage input for most positive cell
Sense voltage input for second most positive cell
Sense voltage input for third most positive cell
Ground pin
Sense voltage input for least positive cell
3