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| MIC4826_09 Datasheet, PDF (3/12 Pages) Micrel Semiconductor – Low Input Voltage, 160VPP Output Voltage, EL Driver | |||
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MIC4826
Absolute Maximum Rating (Note 1)
Supply Voltage (VDD).......................................â0.5V to +6V
Output Voltage (VCS)....................................â0.5V to +100V
Frequency Control Voltage (VRSW, VREL).... â0.5V to (VDD + 0.3V)
Power Dissipation @ TA = 85°C............................... 200mW
Storage Temperature (TS)......................... â65°C to +150°C
ESD Rating .............................................................. Note 3
Micrel
Operating Ratings (Note 2)
Supply Voltage (VDD)........................................1.8V to 5.5V
Lamp Drive Frequency (fEL)........................60Hz to 1000Hz
Switching Transistor Frequency (fSW)......... 8kHz to 200kHz
Ambient Temperature (TA)........................... â40°C to +85°C
Package Thermal Resistance
8-pin MSOP (θJA)............................................... 206°C/W
Electrical Characteristics
VIN = VDD = 3.0V, RSW = 560Kâ¦, REL = 1.0Mâ¦. TA = 25°C unless otherwise specified. Bold values indicate -40°C ⤠TA ⤠+85°C
Symbol
Parameter
Condition
Min Typ Max
RDS(ON)
On-resistance of switching transistor ISW = 100 mA, VCS = 75V
3.8
7.0
VCS
Output voltage regulation
VDD = 1.8V to 5.5V
75
80
85
73
87
VAâââVB
Output peak-to-peak voltage
VDD = 1.8V to 5.5V
150 160 170
146
174
VEN-L
Input low voltage (turn off)
VEN-H
Input high voltage (turn on)
ISD
Shutdown current, Note 4
IVDD
Input supply current
ICS
Boosted supply current
IIN
Input current including inductor
current
VDD = 1.8V to 5.5V
0.5
VDD = 1.8V to 5.5V
VDDâ0.5
RSW = LOW; REL = LOW;
0.01 0.1
VDD = 5.5V
0.5
RSW = HIGH; REL = HIGH;
VCS = 75V; VA, VB OPEN
21
75
RSW = HIGH; REL = HIGH;
VCS = 75V; VA, VB OPEN
200 400
VIN = VDD = 1.8V
28
(See Test Circuit)
fEL
VAâVB output drive frequency
285 360 435
fSW
Switching transistor frequency
53
66
79
D
Switching transistor duty cycle
90
Units
â¦
V
V
V
V
V
V
µA
µA
µA
µA
mA
Hz
kHz
%
Note 1.
Note 2.
Note 3.
Note 4.
Exceeding the absolute maximum rating may damage the device.
The device is not guaranteed to function outside its operating rating.
Devices are ESD sensitive. Handling precautions recommended.
Shutdown current is defined as the sum of current going into pin 1, 5, and 6 when the device is disabled.
Test Circuit
VIN
CIN
10µF
L1
220µH
MIC4826
1 VDD
442k
2 RSW
2M 3 REL
4 GND
SW 5
CS 6
VA 8
VB 7
D1
BAV19WS
COUT
0.01µF/100V
100â¦
10nF
March 2009
3
MIC4826
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