TEA1716T データシートの表示（PDF） - NXP Semiconductors.
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TEA1716T Datasheet PDF : 35 Pages
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NXP Semiconductors
UBA2071; UBA2071A
Half bridge control IC for CCFL backlighting
Table 1. Quick reference data.
Tamb = 25 °C; VVDD = 12 V; RIREF = 33 kΩ; VEN = VVDD and CPWM connected to a capacitor, unless
otherwise specified. All voltages are measured with respect to signal ground (SGND, pin 10). SGND
and PGND connected together. Currents are positive when flowing into the IC.
Symbol
Parameter
Conditions
Min Typ Max Unit
Vth(ov)(VFB)
overvoltage
threshold voltage on
pin VFB
2.40 2.50 2.60 V
tto(fault)
Isource(drv)
Rsink(drv)
fPWM
δPWMD
fault time-out time
driver source
current
driver sink
resistance
PWM frequency
duty cycle on pin
PWMD
CCT = 100 nF
VGL, VGH = 4 V;
VVDD = VFS = 12 V
VGL, VGH = 2 V;
VVDD = VFS = 12 V
0.85 1.00 1.15 s
−105 −90 −75 mA
13.5 16.0 18.5 Ω
[1] 75
-
[3] 12
-
1000 Hz
100 %
[1] Given frequency is switching frequency of GL and GH. Sawtooth frequency on CF pin is twice as high.
[2] Can be set by external capacitor
[3] PWMD is active low: A low level on the PWMD pin corresponds with lamps-on. Example: δPWM = 20 %
means PWMD is during 20 % of each cycle low and the lamps are 20 % of the time on, resulting in a light
output of 20 %.
5. Ordering information
Table 2. Ordering information
Type number
Package
Name
UBA2071T
SO24
UBA2071AT
SO24
UBA2071TS
SSOP24
UBA2071ATS
SSOP24
Description
plastic small outline package; 24 leads; body width 7.5 mm
plastic small outline package; 24 leads; body width 7.5 mm
plastic shrink small outline package; 24 leads;
body width 5.3 mm
plastic shrink small outline package; 24 leads;
body width 5.3 mm
Version
SOT137-1
SOT137-1
SOT340-1
SOT340-1
UBA2071_A_1
Product data sheet
Rev. 01 — 23 June 2008
© NXP B.V. 2008. All rights reserved.
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