UBA3070T/N1,118 NXP Semiconductors, UBA3070T/N1,118 Datasheet - Page 7

• Manufacturer Part Number: UBA3070T/N1,118
• Description: IC LED DVR WHITE BCKLGT 8-SOIC
• Manufacturer: NXP Semiconductors
• Type: Backlight, White LEDr

Specifications of UBA3070T/N1,118

• Package / Case: 8-SOIC (3.9mm Width)
• Topology: PWM, Step-Down (Buck)
• Number Of Outputs: 1
• Internal Driver: No
• Type - Primary: Backlight
• Type - Secondary: White LED
• Frequency: 145kHz ~ 205kHz
• Voltage - Supply: 9.3 V ~ 10.6 V
• Voltage - Output: 12V
• Mounting Type: Surface Mount
• Internal Switch(s): Yes
• Number Of Segments: 2
• Low Level Output Current: 0.56 uA (Typ)
• High Level Output Current: - 0.135 uA (Typ)
• Operating Supply Voltage: 9.3 V to 10.6 V
• Maximum Supply Current: 1500 uA
• Maximum Power Dissipation: 500 mW
• Maximum Operating Temperature: + 145 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• Operating Temperature (min): -40C
• Operating Temperature Classification: Automotive
• Package Type: SO
• Pin Count: 8
• Mounting: Surface Mount
• Power Dissipation: 500mW
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Operating Temperature: -
• Current - Output / Channel: -
• Efficiency: -
• Lead Free Status / Rohs Status: Compliant
• Other names: 568-4924-1

NXP Semiconductors
10. Characteristics
Table 5.
T
UBA3070 IC; unless otherwise specified.
UBA3070
Product data sheet
Symbol
V
Supply voltage management (V
V
V
V
I
I
I
Masking management (MASK pin)
V
V
V
I
t
I
Oscillator
f
PWM duty cycle control (PWM pin)
V
V
I
Valley switch (DRAIN pin)
(ΔV/Δt)
t
OCP (SENSE pin)
V
t
V
t
I
CC(oper)
CC(startup)
CC(prot)
stop(pos)(MASK)
sup(xfmr_ring)
prot(MASK)
osc(high)
prot(PWM)
d(vrec-swon)
PD
leb
startup(soft)
amb
BR
CC(startup)
CC(UVLO)
CC(hys)
th(MASK)
clamp(neg)(MASK)
clamp(pos)(MASK)
IL(en)ILED(PWM)
IH(dis)ILED(PWM)
sense(max)
swp
= 25
vrec
°
C; V
Characteristics
CC
Parameter
breakdown voltage
start-up supply voltage
undervoltage lockout supply
voltage
hysteresis of supply voltage
operating supply current
start-up supply current
protection supply current
threshold voltage on pin MASK
negative clamp voltage on pin
MASK
positive clamp voltage on pin
MASK
positive stop current on pin MASK
transformer ringing suppression
time
protection current on pin MASK
high oscillator frequency
LED current enable LOW-level
input voltage on pin PWM
LED current disable HIGH-level
input voltage on pin PWM
protection current on pin PWM
valley recognition voltage change
with time
valley recognition to switch-on
delay time
maximum sense voltage
propagation delay
short-winding protection voltage
leading edge blanking time
soft startup current
= 15 V; all voltages are measured with respect to ground; currents are positive when flowing into the
CC
pin)
All information provided in this document is subject to legal disclaimers.
Rev. 3 — 9 December 2010
Conditions
V
no load on GATE
V
V
I
I
start secondary stroke
V
V
V
ΔV/Δt = 0.1 V/μs
ΔV/Δt = 0.5 V/μs
R
MASK
MASK
CC(startup)
CC
CC
MASK
PWM
PWM
sense
< V
> V
= −150 μA
= 250 μA
is LOW
= 1.5 V
< 0.5 V
= 50 mV
CC(startup)
CC(UVLO)
− V
CC(UVLO)
pin
[2]
[2]
Min
650
9.3
8.1
1.0
1.1
-
-
50
−0.5
0.5
54
1.1
−50
145
-
2.0
−1.0
−85
-
0.48
-
0.83
300
45
[1]
[1]
Typ
-
10
8.7
1.3
1.3
-
0.85
100
−0.25
0.7
60
1.5
-
175
-
-
−0.8
-
150
0.52
140
0.88
370
60
LED backlight driver IC
[1]
UBA3070
© NXP B.V. 2010. All rights reserved.
Max
-
10.6
9.3
1.6
1.5
600
-
150
−0.05
0.9
66
1.9
−10
205
0.5
-
−0.5
+85
-
0.56
185
0.95
440
75
Unit
V
V
V
V
mA
μA
mA
mV
V
V
μA
μs
nA
kHz
V
V
μA
V/μs
ns
V
ns
V
ns
μA
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