参数资料
型号: UBA2071ATS/N1,118
厂商: NXP Semiconductors
文件页数: 25/35页
文件大小: 0K
描述: IC DVR HALF BRIDGE 24-SSOP
标准包装: 1,000
类型: CCFL/EEFL 控制器
频率: 38 ~ 42kHz
电流 - 电源: 1.5mA
电源电压: 14V
工作温度: -25°C ~ 100°C
封装/外壳: 24-SSOP(0.209",5.30mm 宽)
供应商设备封装: 24-SSOP
包装: 带卷 (TR)
其它名称: 935285777118
NXP Semiconductors
UBA2071; UBA2071A
Half bridge control IC for CCFL backlighting
Table 6. Characteristics …continued
T amb = 25 ° C; V VDD = 12 V; R IREF = 33 k ? ; V EN = V VDD and CPWM connected to a capacitor, unless otherwise speci?ed. All
voltages are measured with respect to signal ground (SGND, pin 10). SGND and PGND connected together. GL, GH,
COMM, NONFAULT and PWMD pins left open (unless otherwise speci?ed). Currents are positive when ?owing into the IC.
Parameters valid for all types (unless otherwise speci?ed).
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
V clamp(VDD)
clamp voltage on pin VDD
EN pin grounded; I VDD = 0.22 mA;
13
13.35 13.7
V
UBA2071T and UBA2071TS
EN pin grounded; I VDD = 3 mA;
-
-
14.0
V
UBA2071T and UBA2071TS
I VDD
current on pin VDD
EN pin grounded; V VDD = 14.0 V;
-
-
0.22
mA
UBA2071AT and UBA2071ATS
Ignition
f sw(max) /f sw(min)
maximum switching frequency
2.2
2.4
2.6
kHz
to minimum switching
frequency ratio
V CVFB(max)
maximum voltage on pin CVFB
-
2.5
-
V
I ch(CVFB)
V th(lod)(IFB)
charge current on pin CVFB
lamp on detection threshold
V VFB = 2 V; V CVFB(max) = 2 V
? 24
0.9
? 21
1.05
? 18
1.2
μ A
V
voltage on pin IFB
Normal operation
I VDD
current on pin VDD
oscillating at f sw(min) ;
1.2
1.5
1.8
mA
C CF = 100 pF
disabled; V VDD = 11 V
oscillating; CF = 100 pF;
-
-
0.16
1.5
-
-
mA
mA
GL and GH open
f sw(min)
minimum switching frequency
C CF = 100 pF
[1][2]
10
-
100
kHz
[1][2]
38
40
42
kHz
V ref(creg)
current regulation reference
1.20
1.26
1.32
V
voltage
V IFB(min)
V IFB(max)
R i(IFB)
g m(OTA)
minimum voltage on pin IFB
maximum voltage on pin IFB
input resistance on pin IFB
OTA transconductance
for linear operating range
for linear operating range
V IFB = 1 V
V IFB = ? 1 V
-
-
-
-
14
? 2.5
2.5
45
24
16.5
-
-
-
-
19
V
V
k ?
k ?
μ A/V
Drivers
I source(drv)
driver source current
V GL , V GH = 4 V;
? 105
? 90
? 75
mA
V VDD = V FS = 12 V
R sink(drv)
driver sink resistance
V GL , V GH = 2 V;
13.5
16.0
18.5
?
V VDD = V FS = 12 V
t no
non-overlap time
1.1
1.3
1.5
μ s
V Fd(bs)
bootstrap diode forward
I FS = 5 mA
1.0
1.5
2.0
V
voltage
PWM dimming
I VDD
current on pin VDD
C CF = 100 pF; V PWMD = H;
1.0
1.2
1.4
mA
V CSWP = 0 V
t d(en)PWM
PWM enable delay time
3
4
5
ms
UBA2071_A_1
? NXP B.V. 2008. All rights reserved.
Product data sheet
Rev. 01 — 23 June 2008
25 of 35
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