MAX4990ETD+T Maxim Integrated Products, MAX4990ETD+T Datasheet - Page 6

• Manufacturer Part Number: MAX4990ETD+T
• Description: IC EL LAMP DRIVER ESD 14-TDFN
• Manufacturer: Maxim Integrated Products
• Type: EL Lamp Driverr

Specifications of MAX4990ETD+T

• Frequency: 210 ~ 290 kHz
• Current - Supply: 350µA
• Voltage - Supply: 2.4 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 14-TDFN Exposed Pad
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Current - Output: -
• Lead Free Status / Rohs Status: Details
• Other names: MAX4990ETD+T; MAX4990ETD+TTR

MAX4990 Evaluation Kit
Figure 1. MAX4990 EV Kit Schematic
6
VDD2
_______________________________________________________________________________________
3
374kΩ
2MΩ
VR2
1%
R4
2
1MΩ
R3
1
1
3
JU3
2
1µF
25V
C1
JU2
VBATT
VDD2
FSW
FEL
VBATT
FSW
GND
VDD
GND
FEL
3
2MΩ
VR1
2
VDD
374kΩ
1
1%
R2
10µF
JU4
JU5
1000pF
25V
0.1µF
C8
100kΩ
68pF
25V
50V
16V
C2
C3
C4
R1
1
3
1µF
25V
JU1
2
C5
JU6
JU7
JU8
1
2
3
4
5
6
7
3300pF
220µH
250V
C6
SLEW
EN
DIM
EL
SW
V
GND
L1
DD
HIGH VOLTAGE (160V DC MAX)
MAX4990
3
1
U1
VDD2
VDD1
VBATT
D1
N.C.
N.C.
N.C.
CS
CS
V
V
LX
FEL
A
B
14
13
12
11
10
9
8
3
13.3kΩ
HIGH VOLTAGE (160V DC MAX)
HIGH VOLTAGE (160V DC MAX)
500kΩ
15000pF
VR3
1%
R5
2
50V
C7
1
GND
GND
VA
HIGH VOLTAGE (160V DC MAX)
VB
CS
1
2
3
4
5
6
7
DISCHARGE1
THRESHLD1
CTRLVOLT1
RESET1
OUT1
TRIGGER1
GND
ICM7556
U2
DISCHARGE2
NOTES:
f
f
LAMP FREQUENCY = f
THRESHLD2
CTRLVOLT2
SW
EL
TRIGGER2
OUTPUT2
FREQUENCY RANGE = 0.1kHz TO 3.6kHz
FREQUENCY RANGE = 30kHz TO 110kHz
RESET2
V+
14
13
12
11
10
9
8
7pF TO 50pF
EL
/4 = 25Hz TO 900Hz
VC1
FSW
VDD1
40.2kΩ
324kΩ
1%
1%
R6
R7