Operating Temperature Range ........................... -40°C to +85°C
Storage Temperature Range ............................ -65°C to +150°C
Junction Temperature ......................................................+150°C
Lead Temperature (soldering, 10s) ................................. +300°C
Note 1:
Package thermal resistances were obtained using the method described in JEDEC specification JESD51-7, using a four-layer
board. For detailed information on package thermal considerations, refer to
www.maximintegrated.com/thermal-tutorial.
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these
or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect
device reliability.
Electrical Characteristics
(V
DD
= +2.7V to +5.5V, total C
LAMP
= 10nF, C
CS
= 3.3nF, tapped inductor = 2.3μH/115μH, 1:7 ratio (I
SAT
= 0.7A, R
S
= 1Ω), T
A
= -40°C
to +85°C, unless otherwise noted. Typical values are at T
A
= +25°C and V
DD
= 3.7V.) (Note 2)
PARAMETER
Input Voltage
Battery Voltage
Input Supply Current
SYMBOL
V
DD
V
BAT
I
DD
(Note 3)
All channels on, 300V
P-P
, f
EL
= 200Hz,
sinewave output shape
RB, A0, A1 = 0V or V
DD
;
SCL = SDA = GND or
V
DD
; not toggling
T
A
= +25°C
T
A
= -40°C
to +85°C
350
25
CONDITIONS
MIN
2.7
TYP
MAX
5.5
13.2
900
100
300
2100
V
DD
rising
1.6
2.0
70
V
EL_
-V
COM
; EL_ _[4:0] = 01000; V
DD
= 3.7V
Peak-to-Peak Output Voltage
Max Average Output Voltage
EL_ High-Side Switch
On-Resistance
EL_ Low-Side Switch
On-Resistance
COM High-Side Switch
On-Resistance
COM Low-Side Switch
On-Resistance
V
P-P
V
AVG
R
ONHS_EL_
R
ONLS_EL_
R
ONHS_COM
R
ONHS_COM
V
EL_
-V
COM
; EL_ _[4:0] = 10000; V
DD
= 3.7V
V
EL_
-V
COM
; EL_ _[4:0] = 11111; V
DD
= 3.7V
V
EL_
- V
COM
66
136
268
78
154
300
1
1270
700
390
175
90
172
320
V
Ω
Ω
Ω
Ω
V
2.5
nA
UNITS
V
V
µA
Shutdown Supply Current
Shutdown Tapped-Inductor
Supply Current
Undervoltage Lockout
UVLO Hysteresis
EL OUTPUTS (EL_, COM)
I
SHDN
I
LX_SHDN
V
UV
V
UV_HYST
nA
V
mV
www.maximintegrated.com
Maxim Integrated
│
2
MAX14521E
Quad, High-Voltage EL Lamp Driver
with I
2
C Interface
Electrical Characteristics (continued)
(V
DD
= +2.7V to +5.5V, total C
LAMP
= 10nF, C
CS
= 3.3nF, tapped inductor = 2.3μH/115μH, 1:7 ratio (I
SAT
= 0.7A, R
S
= 1Ω), T
A
= -40°C
to +85°C, unless otherwise noted. Typical values are at T
A
= +25°C and V
DD
= 3.7V.) (Note 2)
PARAMETER
EL_ High-Side Switch Off-
Leakage
EL_ Low-Side Switch Off-
Leakage
COM High-Side Switch Off-
Leakage
COM Low-Side Switch Off-
Leakage
SYMBOL
I
LKGHS_EL_
I
LKGLS_EL_
I
LKGHS COM_
I
LKGLS COM_
f
EL_LR
f
EL_HR
BOOST CONVERTER
EL_ _[4:0] = 01000; V
DD
= 3.7V
Peak Output Voltage
V
CS
EL_ _[4:0] = 10000; V
DD
= 3.7V
EL_ _[4:0] = 11111; V
DD
= 3.7V
FSW[4:0] = 10000
Tapped-Inductor Center
Switching Frequency
Tapped-Inductor Switching
Frequency Spreading Factor
Tapped-Inductor Switching
Frequency Modulation Frequency
Switch On-Resistance
LX Current
CS Input Current
CONTROL INPUT AUX
Input Range
Input Capacitance
CONTROL INPUT RB
Input Logic-Low Voltage
Input Logic-High Voltage
Input Hysteresis
Input Leakage Current
Input Capacitance
Input Logic-Low Voltage
Input Logic-High Voltage
Input Hysteresis
f
SW
FSW[4:0] = 10000
FSW[4:0] = 00000 (default)
FSW[4:0] = 01111
S
F
f
M
R
LX
I
CS
AUX
RNG
AUX
CAP
V
IL_RB
I
LX
SS[1:0] = 01, 10, or 11
SS[1:0] = 11
I
SINK
= 25mA, V
DD
= 3.7V
V
LX
= 30V
No load, V
CS
= 150V
0
10
-1
33
68
134
39
77
150
400
800
800
1600
8
f
SW
/128
3
+10
27
V
DD
%
kHz
Ω
μA
μA
V
pF
V
V
130
V
RB
= 5.5V or 0
-1
10
0.5
1.5
130
+1
mV
μA
pF
V
V
mV
kHz
45
86
160
V
FEL[7:0] = 1000
0000; V
DD
= 3.7V
FEL[7:0] = 1011
1111; V
DD
= 3.7V
T
A
= +25°C
T
A
= +25°C
T
A
= -40°C to +85°F
T
A
= -40°C to +85°F
CONDITIONS
MIN
-1
-1
-1
-1
194
186
388
376
200
200
400
400
TYP
MAX
+1
+1
+1
+1
206
212
412
424
Hz
UNITS
μA
μA
μA
μA
EL Lamp Switching Frequency
0.5
1.5
I
HYS_RB
I
LKG_RB
C
IN
V
IL
V
IH_RB
I
2
C INTERFACE LOGIC (SDA, SCL, A1, AND A0) (Figure 1)
V
IH
I
HYS
www.maximintegrated.com
Maxim Integrated
│
3
MAX14521E
Quad, High-Voltage EL Lamp Driver
with I
2
C Interface
Electrical Characteristics (continued)
(V
DD
= +2.7V to +5.5V, total C
LAMP
= 10nF, C
CS
= 3.3nF, tapped inductor = 2.3μH/115μH, 1:7 ratio (I
SAT
= 0.7A, R
S
= 1Ω), T
A
= -40°C
to +85°C, unless otherwise noted. Typical values are at T
A
= +25°C and V
DD
= 3.7V.) (Note 2)
PARAMETER
Input Leakage Current
Output Low Voltage
Input/Output Capacitance
Serial-Clock Frequency
Clock Low Period
Clock High Period
Bus Free Time
START Setup Time
START Hold Time
STOP Setup Time
Data In Setup Time
Data In Hold Time
Receive SCL/SDA Minimum
Rise Time
Receive SCL/SDA Maximum
Rise Time
Receive SCL/SDA Minimum
Fall Time
Receive SCL/SDA Maximum
Fall Time
Transmit SDA Fall Time
SCL/SDA Noise Suppression
Time
ESD PROTECTION
EL_, COM
THERMAL PROTECTION
Thermal Shutdown
Thermal Shutdown Hysteresis
T
SHDN
T
HYST
160
12
°C
°C
SYMBOL
I
LKG
C
I/O
f
SCL
t
LOW
t
HIGH
t
BUF
t
SU,STA
t
HD,STA
t
SU,STO
t
SU,DAT
t
HD,DAT
t
R
t
R
t
F
t
F
t
F
t
I
Human Body Model
IEC 61000-4-2 Contact Discharge
IEC 61000-4-2 Air Gap Discharge
C
B
= 400pF
20 +
0.1C
B
50
±15
±6
±8
kV
1.3
0.6
1.3
0.6
0.6
0.6
100
0
20 + 0.1C
B
300
20 + 0.1C
B
300
300
900
V
OL
I
SINK
= 3mA
CONDITIONS
MIN
-1
10
400
TYP
MAX
+1
0.4
UNITS
μA
V
pF
kHz
μs
μs
μs
μs
μs
μs
ns
ns
ns
ns
ns
ns
ns
ns
Note 2:
All parameters are 100% production tested at T
A
= +25°C and T
A
= +85°C, unless otherwise noted. Parameters at -40°C
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