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UC2909MDWREP 数据表(PDF) 4 Page - Texas Instruments

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部件名 UC2909MDWREP
功能描述  SWITCHMODE LEAD-ACID BATTERY CHARGER
Download  21 Pages
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制造商  TI1 [Texas Instruments]
网页  http://www.ti.com
标志 TI1 - Texas Instruments

UC2909MDWREP 数据表(HTML) 4 Page - Texas Instruments

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UC2909-EP
SLUSA72 – JULY 2010
www.ti.com
ELECTRICAL CHARACTERISTICS (continued)
TA = –55°C to 125°C; CT = 430 pF, RSET = 11.5 KΩ, R10 = 10 KΩ, RTHM = 10 KΩ, VCC = 15 V, Output no load,
RSTAT0 = RSTAT1 = 10 KΩ, CHGENB = OVCTAP = VLOGIC, TA = TJ (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
PULSE WIDTH MODULATOR
Maximum duty cycle
CAO = 0.6 V
90
95
100
%
Modulator gain
CAO = 2.5 V, 3.2 V
63
71
80
%/V
OSC peak
3
V
OSC valley
1
V
OSCILLATOR
Frequency
8.8 V < VCC < 35 V
151.65
168.50
185.35
KHz
THERMISTOR DERIVED (VID = VRTHM - VR10)
Initial accuracy,
VID = 0 V, R10 = RTHM = 10 KΩ
(3)
2.250
2.300
2.350
V
VAO (RTHM = 10 KΩ)
Line regulation
VCC = 8.8 V to 35 V
3
10
mV
RTHM = 138 KΩ, R10 = 10 KΩ
2.435
2.495
2.545
VAO
RTHM = 33.63 KΩ, R10 = 10 KΩ
2.340
2.398
2.446
V
RTHM = 1.014 KΩ, R10 = 10 KΩ
2.015
2.066
2.107
CHARGE ENABLE COMPARATOR (CEC)
Threshold voltage
As a function of VA-
0.99
1
1.01
V/V
Input bias current
CHGENB = 2.3 V
-0.5
-0.1
µA
VOLTAGE SENSE COMPARATOR (VSC)
STAT0 = 0, STAT1 = 0, Function of VREF
0.944
0.95
0.955
Threshold voltage
V/V
STAT0 = 1, STAT1 = 0, Function of VREF
0.895
0.9
0.905
OVER CHARGE TAPER CURRENT COMPARATOR (OCTIC)
Threshold voltage
Function of 2.3 V REF, CA- = CAO
0.99
1
1.01
V/V
Input bias current
OVCTAP = 2.3 V
-0.5
-0.1
µA
LOGIC 5 V (VLOGIC)
VLOGIC
VCC = 15 V
4.875
5
5.125
V
Line regulation
8.8 V < VCC < 35 V
3
15
mV
Load regulation
0 A < IO < 10 mA
3
15
mV
Reference comparator turn-on
4.3
4.85
V
threshold
Short circuit current
VREF = 0 V
30
50
80
mA
OUTPUT STAGE
ISINK
50
mA
continuous
IPEAK
100
mA
VOL
IO = 50 mA
1
1.4
V
Leakage current
VOUT = 35 V
25
µA
(3)
Thermistor initial accuracy is measured and trimmed with respect to VAO; VAO = VA-.
4
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Copyright © 2010, Texas Instruments Incorporated
Product Folder Link(s): UC2909-EP


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