Micrel
MIC4832
Absolute Maximum Ratings
(1)
Supply Voltage (V
DD
)...................................... –0.5V to 6.0V
Output Voltage (V
CS
) ..................................... –0.5V to 120V
EL Lamp Terminals (V
A
, V
B
)................................... V
CS
+ 3V
Switch Voltage (Vsw) ..................................... -0.5V to 120V
Frequency Control Voltage
(V
RSW
,
V
REL
) ................................... –0.5V to (V
DD
+0.3V)
Storage Temperature (T
S
).........................–65°C to +150°C
ESD Rating
(4)
.................................................................. 2kV
Operating Ratings
(2)
Supply Voltage (V
DD
).................................... +1.8V to +5.5V
Lamp Drive Frequency (f
EL
) ....................... 60Hz to 1000Hz
Switching Frequency (f
SW
).........................65kHz to 250kHz
Ambient Temperature (T
A
) .......................... –40°C to +85°C
Package Thermal Resistance
(3)
MSOP
(θ
JA
) .....................................................206°C/W
MLF
®
(θ
JA
) .........................................................63°C/W
Electrical Characteristics
(5)
V
IN
= V
DD
= 3.0V, R
SW
= 338KΩ, R
EL
= 1.78MΩ. T
A
= 25°C unless otherwise specified.
Bold
values indicate
–40°C
≤
T
A
≤
+85°C
Parameter
On-resistance
CS Voltage Variation
Enable Input Low Voltage
(turn-off)
Enable Input High Voltage
(turn-on)
Shutdown current
Input supply current
V
DD
= 1.8V to 5.5V
V
DD
= 1.8V to 5.5V
R
SW
Resistor = LOW; R
EL
Resistor = LOW; V
DD
= 5.5V
R
SW
Resistor = HIGH;
R
EL
Resistor = HIGH;
V
CS
= 110V; V
A
, V
B
OPEN
Input current including
inductor
V
A
– V
B
output drive
frequency
Switching transistor
frequency
Switching transistor duty
cycle
Notes:
1. Exceeding the absolute maximum rating may damage the device.
2. The device is not guaranteed to function outside its operating rating.
3. The maximum allowable power dissipation of any T
A
(ambient temperature) is P
D
(max) = (T
J
(max) – T
A
) /
θ
JA
. Exceeding the maximum allowable
power dissipation will result in excessive die temperature.
4. Devices are ESD sensitive. Handling precautions recommended. Human body model, 1.5k in series with 100pF.
5. Specification for packaged product only.
Condition
I
SW
= 100mA
Min
91
Typ
3.8
105
Max
7
119
0.5
Units
Ohm
V
V
VDD-
0.5
0.01
45
0.5
75
μA
μA
V
IN
= V
DD
= 3.2V; R
SW
= 338KΩ, R
EL
= 1.78MΩ;
L=220µH; R
OUT
=10kΩ; Lamp = 2in
2
R
EL
= 1.78MΩ
R
SW
= 338KΩ
158
90
24
200
112
90
242
134
mA
Hz
kHz
%
March 2009
3
M9999-033109-C
MICREL [ MICREL SEMICONDUCTOR ]
