参数资料
型号: MAX15059BATE+
厂商: Maxim Integrated Products
文件页数: 11/16页
文件大小: 0K
描述: IC REG CONV 76V APD 16TQFN
标准包装: 100
应用: 转换器电流监控器,APD 偏压应用
输入电压: 2.8 V ~ 5.5 V
输出数: 1
输出电压: 3.3 V ~ 76 V
工作温度: -40°C ~ 85°C
安装类型: *
封装/外壳: *
供应商设备封装: *
包装: *
76V, 300mW Boost Converter and Current
Monitor for APD Bias Applications
Pin Description (continued)
PIN
12
13
14, 15
NAME
APD
BIAS
LX
EP
FUNCTION
Reference Current Output. APD provides the source current to the cathode of the photodiode.
Bias-Voltage Input. Connect BIAS to the boost converter output (VOUT) either directly or through a
lowpass filter for ripple attenuation. BIAS provides the voltage bias for the current monitor and is the
current source for APD.
Drain of Internal 80V n-Channel DMOS. Connect inductor to LX. Minimize the trace area at LX to reduce
switching-noise emission.
Exposed Pad. Connect to a large copper plane at the SGND and PGND potential to improve thermal
dissipation. Do not use as the only ground connection.
Functional Diagram
FB
CNTRL
V REF
MUX
-A
+A
OUTPUT ERROR
AND CURRENT COMPARATOR
LX
SGND
-C
+C
SOFT-
START
PEAK
CURRENT-LIMIT
COMPARATOR
SWITCH
CONTROL
LOGIC
80V
DMOS
PGND
V REF
REFERENCE
COMPARATOR
V REF
SWITCH
CURRENT
SENSE
CLAMP
BIAS
AND REF
THERMAL
SHUTDOWN
1X
MOUT
IN
UVLO
CLK
OSCILLATOR
CONTROL
MONITOR
1X (A)
5X (B)
CURRENT-
LIMIT
ADJUSTMENT
CURRENT
LIMIT
RLIM
APD
ILIM
400kHz
MAX15059
SHDN
BIAS
______________________________________________________________________________________
11
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