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TA9687GN
LCDM Inverter Controller / 16 SOP Lead-Free
O2Micro International
TA9687GN Datasheet PDF : 14 Pages
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ta9687
ELECTRICAL CHARACTERISTICS
All specifications below are at: VDDA=5V; R
CT
= 84.5K
Ω
; C
CT
= 220pF unless otherwise noted.
Parameter
Supply Current
Stand By
Operating
Soft Start
Current Source
Under Voltage Lockout
Lock Out Threshold
Resume Threshold
Reference Voltage
ISEN Reference Voltage
VSEN Reference Voltage
During Striking
Driver Frequency
Striking
Normal Operation
Timer and Protection
Striking Current Source
Open Lamp and Over Voltage
Protection Current Source
Drivers
NDR1/2 Sink
NDR1/2 Source
PDR1/2 Sink
PDR1/2 Source
Maximum Overlap ratio
BBM1&4(PDR_L+NDR_L)
BBM2&3(PDR_H+NDR_H)
Symbol
Test Conditions
Limits
Min
Typ
Max
I
dds
ENA=0V
--
2
5
I
dd
Capacitance at NDR1/2
& PDR1/2 = 1nF
1.6
1.9
2.2
ISSTCMP
1.90 2.55 3.20
V
UV,TH-OFF
V
UV,TH-ON
VDDA 5V
Æ
0V
VDDA 0V
Æ
5V
3.2
3.4 3.6
3.3
3.6
4.0
ISEN=SSTCMP
1.17 1.23 1.29
Temperature Coefficient
330
VSEN=SSTCMP
2.75
2.9
3.05
Temperature Coefficient
340
R
RT1
= 300K
61.5 63.8 66.0
f
str
Temperature Coefficient
200
48.0 49.5 51.0
F
op
Temperature Coefficient
180
ISEN =0V
SSTCMP > 3.3V or
VSEN>OVPT
2.2
3.0
3.8
8.1 10.85 13.6
R
ON_SRC, NDR
R
ON_SNK, NDR
R
ON_SRC, PDR
R
ON_SNK, PDR
2
6
10
10
16
22
6
12
18
5
9
13
95
--
--
100
175
250
400
100
175
250
800
Unit
µ
A
mA
µ
A
V
V
V
ppm/
O
C
V
ppm/
O
C
KHZ
ppm/
O
C
kHz
ppm/
O
C
uA
uA
Ω
Ω
Ω
Ω
%
ns
ppm/C
ns
ppm/C
CONFIDENTIAL
ta9687-DS-1.0
Page 3
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