参数资料
型号: MAX6873ETJ+T
厂商: Maxim Integrated Products
文件页数: 14/48页
文件大小: 0K
描述: IC SEQUENCE/SUPERVISOR 32TQFN
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 2,500
类型: 序列发生器
监视电压数目: 4
输出: 开路漏极,推挽式
复位: 高有效/低有效
复位超时: 可调节/可选择
电压 - 阀值: 5 种可调阀值电压
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 32-WFQFN 裸露焊盘
供应商设备封装: 32-TQFN-EP(5x5)
包装: 带卷 (TR)
EEPROM-Programmable, Hex/Quad,
Power-Supply Sequencers/Supervisors
Table 2. IN1 Threshold Settings
REGISTER
ADDRESS
00h
06h
0Ch
0Dh
EEPROM
MEMORY
ADDRESS
8000h
8006h
800Ch
800Dh
BIT
RANGE
[7:0]
[7:0]
[0]
[0]
DESCRIPTION
IN1 primary undervoltage detector threshold (V1A) (see equations in the High-Voltage Input
(IN1) section).
IN1 secondary undervoltage/overvoltage detector threshold (V1B) (see equations in the
High-Voltage Input (IN1) section).
IN1 secondary overvoltage/undervoltage selection:
0 = overvoltage threshold. 1 = undervoltage threshold.
IN1 range selection:
0 = 2.5V to 13.2V range in 50mV increments. 1 = 1.25V to 7.625V range in 25mV increments.
Table 3. IN2 Threshold Settings
REGISTER
ADDRESS
01h
07h
0Ch
EEPROM
MEMORY
ADDRESS
8001h
8007h
800Ch
BIT
RANGE
[7:0]
[7:0]
[1]
DESCRIPTION
IN2 primary undervoltage detector threshold (V2A) (see equations in the Bipolar-Voltage
Input (IN2) section).
IN2 secondary undervoltage/overvoltage detector threshold (V2B) (see equations in the
Bipolar-Voltage Input (IN2) section).
IN2 secondary overvoltage/undervoltage selection:
0 = overvoltage threshold. 1 = undervoltage threshold.
IN2 range selection:
00 = -2.5V to -15.25V range in 50mV increments.
0Dh
800Dh
[7:6]
01 = -1.25V to -7.625V range in 25mV increments.
10 = +2.5V to +15.25V range in 50mV increments.
11 = +1.25V to +7.625V range in 25mV increments.
x =
? ( V TH ? 1 . 25 V
0 . 025 V
)
for ? 1 . 25 V to ? 7 . 625 V range
IN3–IN6
IN3–IN6 offer positive voltage detectors monitor volt-
ages from +1V to +5.5V in 20mV increments, or +0.5V
to +3.05V in 10mV increments. Use the following equa-
x = TH
x = TH
for + 1 V to + 5 . 5 V range
V ? 2.5 V
0 . 05 V
for + 2 . 5 V to + 15 . 25 V range
tions to set the threshold voltages for IN_:
V ? 1V
0 . 02 V
x = TH
for + 1 . 25 V to + 7 . 625 V range
x = TH
V ? 1.25 V
0 . 025 V
where V TH is the desired threshold voltage and x is the
V ? 0.5 V
0 . 01 V
for + 0 . 5 V to + 3 . 05 V range
decimal code for the desired threshold ( Table 3).
where V TH is the desired threshold voltage and x is the
decimal code for the desired threshold ( Table 4). For
the +1V to +5.5V range, x must equal 225 or less, oth-
14
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