MAX4990ETD+T Maxim Integrated Products, MAX4990ETD+T Datasheet - Page 2

• 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

Before beginning, the following equipment is needed:
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MAX4990 Evaluation Kit
Note: Indicate that you are using the MAX4990 when contacting these component suppliers.
Table 1. MAX4990 EV Kit Jumper Descriptions (JU1–JU8)
* Default position.
2
Central Semiconductor Corp.
Murata Mfg. Co., Ltd.
TDK Corp.
TOKO America, Inc.
JUMPER
MAX4990 EV kit
A user-supplied electroluminescent (EL) lamp
5V DC power supply
Oscilloscope to monitor VA and VB
_______________________________________________________________________________________
JU1
JU2
JU3
JU4
JU5
JU6
JU7
JU8
SUPPLIER
SIGNAL
VBATT
SLEW
VDD2
VDD1
DIM
SW
EN
EL
Recommended Equipment
SHUNT POSITION
Open*
Open*
Quick Start
Open
Open
Open
Open
1-2*
1-2*
2-3*
1-2*
1-2*
1-2*
2-3
1-2
1-2
1-2
Set by R2
Adjustable by VR1
EN = logic-high: normal operation
EN = logic-low: shutdown
Adjustable by VR2
Set by R4
Adjustable by VR3
Set by C2
Adjustable by VC1
Set by C3
Power supplied to U2 by VDD
Note: VDD must be ≤ 5V
U1 must be powered independently
Power supplied to U1 by VDD
Note: VDD must be ≤ 5V
U2 must be powered independently
VDD and VBATT connected together
Note: VBATT must be ≤ 5V
VBATT supplies L1 independent of VDD
631-435-1110
770-436-1300
847-803-6100
847-297-0070
PHONE
The MAX4990 EV kit is fully assembled and tested.
Follow the steps below to verify board operation:
1) Verify that all jumpers (JU1–JU8) are in their default
2) Connect the VA and VB alligator clip leads to the EL
3) Connect the oscilloscope to VA and VB. With math
4) Connect the 5V DC power supply between the VDD
5) Switch on the 5V power supply. Verify that the EL
positions, as shown in Table 1.
lamp. Note: Under some conditions, the VA/VB
output may be as high as 250V
function, monitor VA-VB waveform.
and GND pins.
lamp illuminates.
www.centralsemi.com
www.murata.com
www.component.tdk.com
www.tokoam.com
FUNCTION
Component Suppliers
WEBSITE
P-P
.
Procedure