MAX8521 Maxim Integrated Products, MAX8521 Datasheet - Page 4

• Manufacturer Part Number: MAX8521
• Description: Smallest TEC Power Drivers
• Manufacturer: Maxim Integrated Products

ELECTRICAL CHARACTERISTICS
(V
T
Smallest TEC Power Drivers for Optical
Modules
4
Input Supply Range
Maximum TEC Current
Reference Voltage
Reference Load Regulation
MAXIP/MAXIN Threshold
Accuracy
NFET On-Resistance
PFET On-Resistance
No Load Supply Current
Shutdown Supply Current
UVLO Threshold
Internal Oscillator Switching
Frequency
External Sync Frequency Range
LX_ Duty Cycle
OS1, OS2, CS Input Current
SHDN, FREQ Input Current
SHDN, FREQ Input Low Voltage
SHDN, FREQ Input High Voltage
A
DD
= -40°C to +85°C, unless otherwise noted.) (Note 7)
_______________________________________________________________________________________
= V
PVDD1
PARAMETER
= V
PVDD2
= V
SHDN
= 5V, 1MHz mode (Note2). PGND1 = PGND2 = GND, CTLI = MAXV = MAXIP = MAXIN = REF,
I
R
R
SYMBOL
OS1
DS(ON-N)
DS(ON-P)
I
f
I
I
∆V
V
DD(NO
LOAD)
SW-INT
DD-SD
SHDN
I
V
V
FREQ
UVLO
I
V
V
REF
, I
CS
DD
REF
IH
IL
OS2
,
,
V
V
V
V
V
V
V
V
V
1.500V, V
V
1.500V, V
SHDN = GND, V
V
V
MAX8521, FREQ = V
MAX8521, FREQ = 0, V
MAX8520, R
MAX8520, R
MAX8520, R
MAX8520, R
25% < duty cycle <75% (MAX8521 only)
Note 5
0 or V
0 or V
only
V
MAX8521 only
V
MAX8521 only
DD
DD
DD
DD
DD
DD
DD
DD
COMP
COMP
DD
DD
DD
DD
= 3V to 5.5V, I
= 3V to 5V, I
= 5V
= 3V
= 5V, I = 0.2A
= 3V, I = 0.2A
= 5V, I = 0.2A
= 3V, I = 0.2A
Rising
Falling
= 3V to 5.5V, FREQ applicable for the
= 3V to 5.5V, FREQ applicable for the
DD
DD
= V
= V
, FREQ applicable for the MAX8521
DD
DD
REF
REF
EXT
EXT
EXT
EXT
= 5V
= 3.3V
CONDITIONS
=
=
= 60kΩ, V
= 60kΩ, V
= 150kΩ, V
= 150kΩ, V
DD
REF
REF
= 5V, (Note 4)
DD
= 10µA to 1mA
= 150µA
V
V
V
V
500kHz mode
1MHz mode
500kHz mode
1MHz mode
DD
, V
MAXI_
MAXI_
MAXI_
MAXI_
DD
DD
DD
= 3V to 5V
DD
DD
= 3V to 5V
= 5V
= 3V
= V
= V
= V
= V
= 5V
= 3V
REF
REF
REF
REF
/3
/3
V
1.480
MIN
±1.5
2.50
2.40
0.76
0.36
-100
0.75
140
143
DD
3.0
0.8
0.4
0.8
0.4
0.7
40
45
-5
0
x
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V
1.515
+100
MAX
0.14
0.16
0.23
0.30
2.80
2.70
1.10
0.56
0.25
160
155
100
DD
5.5
1.2
0.6
1.2
0.6
1.2
+5
60
55
14
21
11
14
5
3
x
UNITS
MHz
MHz
mV
mV
mA
mA
µA
µA
%
V
A
V
Ω
Ω
V
V
V