参数资料
型号: MAX8521EWX+T
厂商: Maxim Integrated Products
文件页数: 5/18页
文件大小: 0K
描述: IC DRVR PWR TEC 36-WLP
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 2,500
应用: 热电冷却器
电源电压: 3 V ~ 5.5 V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 36-UFBGA,WLCSP
供应商设备封装: 36-WLP(3.07x3.07)
包装: 带卷 (TR)
Smallest TEC Power Drivers for Optical
Modules
ELECTRICAL CHARACTERISTICS (continued)
(V DD = V PVDD1 = V PVDD2 = V SHDN = 5V, 1MHz mode (Note 4). PGND1 = PGND2 = GND, CTLI = MAXV = MAXIP = MAXIN = REF,
T A = -40°C to +85°C , unless otherwise noted.) (Note 8)
PARAMETER
MAXV Threshold Accuracy
SYMBOL
CONDITIONS
V MAXV = V REF x 0.67, V OS1 to V OS2 = ± 4V,
V DD = 5V
V MAXV = V REF x 0.33, V OS1 to V OS2 = ± 2V,
V DD = 3V
MIN
-2
-3
MAX
+2
+3
UNITS
%
%
I MAXV-
MAXV, MAXI_ Input Bias Current
BIAS ,
V MAXV = V MAXI_ = 0.1V or 1.5V
-0.1
+0.1
μA
I MAXI_-BIAS
CTLI Gain
CTLI Input Resistance
A CTLI
R CTLI
V CTLI = 0.5V to 2.5V (Note 7)
1M ? terminated at REF
9.5
0.5
10.5
2.0
V/V
M ?
Error-Amp Transconductance
V ITEC Accuracy
g m
V OS1 to V CS = ± 100mV
V OS1 = V DD /2
50
-10
160
+10
μS
%
Note 4: Enter 1MHz mode by connecting a 60k ? resistor from FREQ to ground for the MAX8520, and connecting FREQ to V DD for
the MAX8521.
Note 5: Includes power FET leakage.
Note 6: Duty-cycle specification is guaranteed by design and not production tested.
Note 7: CTLI Gain is defined as:
A CTLI =
? V CTLI
? ( V OS 1 ? V CS )
Note 8: Specifications to -40°C are guaranteed by design and not production tested.
Typical Operating Characteristics
(V DD = 5V, circuit of Figure 1, T A = +25°C unless otherwise noted.)
90
80
70
60
50
EFFICIENCY vs. TEC CURRENT
V DD = 5V, R TEC = 2 ?
FREQ = 500kHz
FREQ = 1MHz
90
80
70
60
50
EFFICIENCY vs. TEC CURRENT
V DD = 3.3V, R TEC = 1.3 ?
FREQ = 500kHz
FREQ = 1MHz
COMMON-MODE
OUTPUT VOLTAGE RIPPLE
MAX8520/21 toc03
C 2 = C 7 = 1 μ F
V OS2
20mV/div
AC-COUPLED
40
40
30
20
10
0
30
20
10
0
V OS1
20mV/div
AC-COUPLED
I TEC = 1A
0
0.2
0.4
0.6
0.8
1
1.2
1.4
1.6
0
0.2
0.4
0.6
0.8
1
1.2
1.4
1.6
400ns/div
TEC CURENT (A)
TEC CURRENT (A)
_______________________________________________________________________________________
5
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