NPC SM8140AM

SM8140A
EL Driver IC
NIPPON PRECISION CIRCUITS INC.
OVERVIEW
PIN OUT
The SM8140A is designed for using as EL (Electronic Luminescence) sheet driver require very low
external parts counts, this result that very compact
and thin EL driver units can be made.
Also this device has the features to use in wider
range of applications demanding low quiescent current, low supply voltages, low operating supply currents, simple brightness control and low EMI
(Electro-Magnetic Interference) emission due to the
inherent smooth driver wave forms.
( Top View )
14pin SSOP
CHV
LDR
OCL2
■
■
■
■
■
■
ORDERING INFOMATION
Device
Package
SM8140AM
14pin SSOP
CF8140A
Chip in tray
VDD
8
ENA
PIN OUT
( Unit : mm )
0.17 0.20
8.00
8.20
1.80MAX
■
■
CPO
4.40
6.40 0.30
■
OCEl
CP1
1.50
■
■
Specially providing EL driver functions
Non-transformer for compact outline
Bipolar driving for high power efficiency
Very low noise smooth driver wave forms
Brightness control with driving frequency change
(An external resistance determines the driving frequency)
Low power consumption by quiescent current
control
ON-chip high voltage output MOS transistor
Large EL sheet (Exceeding 100 cm2) drivable
supply voltage
VDD = 2.4V to 3.6V or 5.0V
1.5V and 3V power applicable
(Refer to APPLICATION HINTS)
Maximum output driver voltage:200VP − P
Typical driver frequency:250Hz
14 pin SSOP
chip form
7
CP2
0.35 0.10
1.00
0.10 0.10
■
■
OCE2
SM8140AM
■
OUT1
OUT2
VSS1
OCL1
FEATURES
14
1
0 10
0.625 0.20
NIPPON PRECISION CIRCUITS—1
SM8140A
PAD DIMENSIONS
PAD COORDINATES
( UNIT:µm )
13 12 11 10 9
Y
(2500, 2700)
14
8
15
7
6
5
16
(0, 0)
1
2
3
4
X
Chip size : 2.50 × 2.70mm
Chip thickness : 4000 ± 30µm
Pad size : 100 × 100µm
Chip reverse side : VSS
No.
NAME
X
Y
1
OCE2
360
190
2
OCE1
900
190
3
ENA
1440
190
4
VSS2
2080
190
5
VDD
2310
320
6
CPO
2310
560
7
CP1
2310
1100
8
CP2
2310
1640
9
OUT2
2300
2530
10
OUT1
2100
2530
11
CHV
1900
2530
12
MONG
1700
2530
13
LDR
1500
2530
14
VSS1
190
1600
15
OCL2
190
1040
16
OCL1
190
500
Note : MONG is test pin.
MONG and VSS2 are not bonding.
NIPPON PRECISION CIRCUITS—2
SM8140A
Charge Pump
Circuit
CP1
OUT2
OUT1
Divider
Divider
Oscillation Circuit
for Voltage Booster
Oscillasion Circuit
for output
OCL1
VSS2
CP2
VSS1
CHV
Level Shifter
OCE2
CPO
High Voltage
Switching Circuit
OCE1
Enable Circuit
OCL2
ENA
LDR
VDD
(MONG)
BLOCK DIAGRAM
PIN DESCRIPTION
SSOP
chip
Pin Name
i/o
Function
1
11
CHV
i
DC high voltage pin
−
12
MONG
o
Monitor gate
2
13
LDR
o
Step − up inductor driver output
3
14
VSS1
−
GND
−
4
VSS2
−
GND
4
15
OCL2
o
5
16
OCL1
i
CR oscillator pin for step − up inductor and charge pump.
External resistor at this pin determines oscillator frequency.
6
1
OCE2
i
CR oscillator pin for output
7
2
OCE1
o
External resistor at this pin determines oscillator frequency
Output control pin. Output from OUT1 and OUT2 pins are stopped When "L".
8
3
ENA
ip1
9
5
VDD
−
Power supply pin
10
6
CPO
o
Charge pump output (Voltage output for driving high voltage MOS)
11
7
CP1
o
Charge pump external capacitor pin
12
8
CP2
o
Charge pump external capacitor pin
13
9
OUT2
o
Output for EL
14
10
OUT1
o
Output for EL
1. "ip" defines input pin with pull down internal resistor
NIPPON PRECISION CIRCUITS—3
SM8140A
ABSOLUTE MAXIMUM RATINGS
VSS = 0V, Unless otherwise noted
Parameter
Symbol
Condition
Rating
unit
− 0.3 to + 8.0
V
VSS − 0.3 to VDD + 0.3
V
Supply voltage range
VDD
Input voltage range
VIN
All input pins
VCHV
CHV pins
0.5 to 120
VLDR
LDR pins
0.5 to 120
VOUT1
OUT1 pins
0.5 to 120
VOUT2
OUT2 pins
0.5 to 120
PD
Ta ≤ 70°C
Output voltage
Power dissipation
V
200
mW
− 55 to 125
°C
Storage temperature range
TSTG
Soldering temperature
TSLD
Package only
255
°C
Soldering time
tSLD
Package only
10
sec
RECOMMENDED OPERATING CONDITIONS
VSS = 0V, Unless otherwise noted
Parameter
Supply voltage range
Operating temperature range
Operating current2
Using inductor
Symbol
Condition
VDD1
CPO = VDD1
VDD2
TOPR
IDD2
Including inductor current, VDD = 3.0V
Rating
min
unit
typ
max
2.4
−
3.6
V
4.5
−
5.5
V
− 30
−
70
°C
−
20
100
mA
IDD3
Including inductor current, VDD = 5.0V
−
25
100
mA
LLDR1
fLDR = 32kHz, VDD = 3.0V
−
1.0
−
mH
LLDR2
fLDR = 32kHz, VDD = 5.0V
−
1.5
−
mH
1. 5V Application hints is different from 3V ones (Refer to APPLICATION HINTS)
2. Max value is as same as Absolute Maximum Ratings
ELECTRICAL CHARACTERISTICS
Ta = 25 °C, VSS = 0V, VDD = 3.0V, unless otherwise noted
Parameter
Pin
Symbol
Supply voltage range
VDD
VDD
CPO
VCPO
CHV
VCHV
OUT1/2
Output voltage
Condition
Rating
min
typ
max
2.4
−
3.6
4.5
5.5
−
0.5
−
100
VOUTH
−
−
100
OUT1/2
VOUTL
−
−
0.5
VCPO ≤ 2 × VDD
unit
V
V
LDR
RLDR
VCPO = 6.0V
−
5.0
10.0
OCE1/2
fOCE
ROCE = 3.9MΩ
5.6
8.0
10.4
OCL1/2
fOCL
ROCL = 100kΩ1
179
256
332
Driving frequency
OUT1/2
fOUT
ROCE = 3.9MΩ2
175
250
325
Hz
Output frequency
LDR
kHz
Output resistance
Oscillation frequency
Ω
kHz
fLDR
ROCL = 100kΩ
22.4
32
41.6
VENAH
ENA = "H"
VDD + 1.0
−
VDD + 0.3
VENAL
ENA = "L"
VSS − 0.3
−
VSS + 1.0
0.45
0.75
1.05
µA
Input voltage
ENA
V
Input current
ENA
IENAH
VENAH = 3.0V
Operating current
VDD
IDD1
Excluding inductor current
−
−
1
mA
Stand − by current
VDD
ISTB
ENA = "L"
−
−
1
µA
1. ROSC determines EL driver frequency 20k to 100kHz
2. ROSC determines EL driver frequency 200 to 500Hz
NIPPON PRECISION CIRCUITS—4
SM8140A
APPLICATION HINTS
+
0.1µF
100V
1.0kΩ
LDR
OUT2
VSS1
CP2
+
CP1
470pF
OCL2
3.9MΩ
SM8140AM
OUT1
1.0mH
100kΩ
EL sheet
510Ω
CHV
OCL1
CPO
OCE2
VDD
OCEl
ENA
EL sheet : SPI ULTRA−THIN TYPE
EL sheet size : 10 to 20cm 2
Current consumption : 20mA (typ.)
0.01µF
+
3.0V
Diode : TOSHIBA 1SS250
Coil : MURATA LQH4N102K04M00
+
0.1µF
100V
1.0kΩ
510Ω
OUT1
LDR
OUT2
VSS1
CP2
+
CP1
470pF
OCL2
0.47mH
100kΩ
3.9MΩ
SM8140AM
CHV
OCL1
CPO
OCE2
VDD
OCEl
ENA
EL sheet
EL sheet : SPI ULTRA−THIN TYPE
EL sheet size : 20 to 40cm 2
Current consumption : 40mA (typ.)
0.01µF
+
3.0V
Diode : TOSHIBA 1SS250
Coil : MURATA LQH4N471K04M00
+
0.1µF
100V
1.0kΩ
510Ω
LDR
OUT2
VSS1
CP2
+
CP1
470pF Current consumption : 20mA (typ.)
OCL2
1.5V
3.9MΩ
SM8140AM
OUT1
0.47mH
100kΩ
EL sheet
CHV
OCL1
CPO
OCE2
VDD
OCEl
ENA
EL sheet : SPI ULTRA−THIN TYPE
EL sheet size : 10 to 20cm
0.01µF
+
3.0V
Diode : TOSHIBA 1SS250
Coil : MURATA LQH4N471K04M00
NIPPON PRECISION CIRCUITS—5
SM8140A
+
0.1µF
100V
1.0kΩ
LDR
OUT2
VSS1
CP2
SM8140AM
OUT1
OCL2
1.5mH
100kΩ
3.9MΩ
EL sheet
510Ω
CHV
EL sheet : SPI ULTRA−THIN TYPE
EL sheet size : 40 to 60cm
CP1
OCL1
CPO
OCE2
VDD
OCEl
ENA
Current consumption : 25mA (typ.)
5.0V
Diode : TOSHIBA 1SS250
Coil : MURATA LQH4N152K04M00
+
0.1µF
100V
1.0kΩ
510Ω
OUT1
LDR
OUT2
VSS1
CP2
OCL2
0.33mH
36kΩ
3.9MΩ
SM8140AM
CHV
EL sheet
EL sheet : SPI ULTRA−THIN TYPE
EL sheet size : 60 to 80cm
CP1
OCL1
CPO
OCE2
VDD
OCEl
ENA
Current consumption : 45mA (typ.)
5.0V
Diode : TOSHIBA 1SS250
Coil : MURATA LQH4N331K04M00
+
0.1µF
100V
1.0kΩ
510Ω
OUT1
LDR
OUT2
VSS1
CP2
OCL2
0.47mH
68kΩ
3.9MΩ
SM8140AM
CHV
EL sheet
EL sheet : SPI ULTRA−THIN TYPE
EL sheet size : 80 to 100cm
CP1
OCL1
CPO
OCE2
VDD
OCEl
ENA
Current consumption : 55mA (typ.)
5.0V
Diode : TOSHIBA 1SS250
Coil : TOKO 817CE471M
NIPPON PRECISION CIRCUITS INC. reserves the right to make changes to the products described in this data sheet in order to
improve the design or performance and to supply the best possible products. Nippon Precision Circuits Inc. assumes no responsibility for
the use of any circuits shown in this data sheet, conveys no license under any patent or other rights, and makes no claim that the circuits
are free from patent infringement. Applications for any devices shown in this data sheet are for illustration only and Nippon Precision
Circuits Inc. makes no claim or warranty that such applications will be suitable for the use specified without further testing or modification.
The products described in this data sheet are not intended to use for the apparatus which influence human lives due to the failure or
malfunction of the products. Customers are requested to comply with applicable laws and regulations in effect now and hereinafter,
including compliance with export controls on the distribution or dissemination of the products. Customers shall not export, directly or
indirectly, any products without first obtaining required licenses and approvals from appropriate government agencies..
NIPPON PRECISION CIRCUITS INC.
NIPPON PRECISION CIRCUITS INC.
4-3, 2-chome Fukuzumi
Koto-ku, Tokyo 135-8430, Japan
Telephone: 03-3642-6661
Facsimile: 03-3642-6698
NC9612CE
1998.03
NIPPON PRECISION CIRCUITS—6