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参数资料
| 型号： | MAX8614ETD+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 8/15页 |
| 文件大小： | 0K |
| 描述： | IC DC-DC CONV DL CCD 14TDFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 应用： | 转换器，CCD |
| 输入电压： | 2.7 V ~ 5.5 V |
| 输出数： | 2 |
| 输出电压： | 最高可调至 24V，最低可调至 -10V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 14-WFDFN 裸露焊盘 |
| 供应商设备封装： | 14-TDFN-EP（3x3） |
| 包装： | 带卷 (TR) |
Dual-Output (+ and -) DC-DC
Converters for CCD
Typical Operating Characteristics (continued)
(T A = +25 ° C, V CC = V AVCC = 3.6V, SEQ = GND, Figure 1, unless otherwise noted.)
1.2490
1.2485
REFERENCE VOLTAGE
vs. TEMPERATURE
1.006
1.005
SWITCHING FREQUENCY
vs. TEMPERATURE
1.2480
1.2475
1.2470
1.2465
1.2460
1.2455
1.2450
1.004
1.003
1.002
1.001
1.000
0.999
0.998
0.997
0.996
V INV = -7.5V
I OUT = 100mA
V BST = +15V
I OUT = 50mA
-40
-15
10 35
60
85
-40
-15
10 35
60
85
TEMPERATURE ( ° C)
TEMPERATURE ( ° C)
Pin Description
PIN
1
2
3
4
5
6
7
8
9
10
11
12
13
14
—
NAME
ONBST
FBN
AV CC
REF
GND
FLT
FBP
SEQ
ONINV
LXP
PGND
PVP
V CC
LXN
EP
FUNCTION
Enable Logic Input. Connect ONBST to AV CC for automatic startup of the step-up converter, or use ONBST
as an independent control of the step-up converter.
Negative Output Feedback Input. Connect a resistor-divider between the negative output and REF with the
center to FBN to set the negative output voltage.
Bias Supply. AV CC powers the IC. AV CC must be connected to V CC .
1.25V Reference Voltage Output. Bypass with a 0.22μF ceramic capacitor to GND.
Ground. Connect GND to PGND with a short trace.
Fault Open-Drain Output. Connect a 100k ? resistor from FLT to AV CC . FLT is active low during a fault event
and is high impedance in shutdown.
Positive Output-Voltage Feedback Input. Connect a resistor-divider between the positive output and GND
with the center to FBP to set the positive output voltage. FBP is high impedance in shutdown.
Sequence Logic Input. When SEQ = low, power-on sequence can be independently controlled by ONBST
and ONINV. When SEQ = high, the positive output powers up before the negative output.
Enable Logic Input. Connect ONINV to AV CC for automatic startup of the inverter, or use ONINV as an
independent control of the inverter.
Positive Output Switching Inductor Node. LXP is high impedance in shutdown.
Power Ground. Connect PGND to GND with a short trace.
True-Shutdown Load Disconnect Switch. Connect one side of the inductor to PVP and the other side to LXP.
PVP is high impedance in shutdown.
Power Input Supply. VCC supplies power for the step-up and inverting DC-DC converters. V CC must be
connected to AV CC .
Negative Output Switching Inductor Node. LXN is high impedance in shutdown.
Exposed Pad. Connect exposed paddle to ground.
8
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