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| MIC4826 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 Units
RDS(ON)
VCS
On-resistance of switching transistor ISW = 100 mA, VCS = 75V
Output voltage regulation
VDD = 1.8V to 5.5V
3.8
7.0
â¦
75
80
85
V
73
87
V
VA â VB
Output peak-to-peak voltage
VDD = 1.8V to 5.5V
150 160 170
V
146
174
V
VEN-L
VEN-H
ISD
IVDD
ICS
IIN
Input low voltage (turn off)
Input high voltage (turn on)
Shutdown current, Note 4
Input supply current
Boosted supply current
Input current including inductor
current
VDD = 1.8V to 5.5V
VDD = 1.8V to 5.5V
RSW = LOW; REL = LOW;
VDD = 5.5V
RSW = HIGH; REL = HIGH;
VCS = 75V; VA, VB OPEN
RSW = HIGH; REL = HIGH;
VCS = 75V; VA, VB OPEN
VIN = VDD = 1.8V
(See Test Circuit)
0.5
V
VDDâ0.5
V
0.01 0.1
µA
0.5
µA
21
75
µA
200 400
µA
28
mA
fEL
VAâVB output drive frequency
fSW
Switching transistor frequency
D
Switching transistor duty cycle
285 360 435 Hz
53
66
79 kHz
90
%
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
1N4148
100â¦
COUT
0.01µF/100V
10nF
August 2004
3
MIC4826
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