参数资料
型号: MAX6791TPWD4+
厂商: Maxim Integrated Products
文件页数: 20/24页
文件大小: 0K
描述: IC REG LIN W/SPR VSR 20-TQFN
其它有关文件: Automotive Product Guide
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 60
类型: 稳压器/监控器
监视电压数目: 2
输出: 开路漏极或开路集电极
复位: 低有效
复位超时: 最小为 140 ms
电压 - 阀值: 1.665V,可调
工作温度: -40°C ~ 125°C
安装类型: 表面贴装
封装/外壳: 20-WQFN 裸露焊盘
供应商设备封装: 20-TQFN-EP(5x5)
包装: 管件
High-Voltage, Micropower, Single/Dual Linear
Regulators with Supervisory Functions
Table 1. Preset Output Voltage and Reset
Threshold
Use the following formulas to determine the high/low
threshold levels and the hysteresis:
V L-H = V PFI x (1 + R5 / R6 +R5 / R7)
PART
SUFFIX (_)
L
M
T
S
Z
Y
W
V
OUTPUT
VOLTAGE (V)
5.0
5.0
3.3
3.3
2.5
2.5
1.8
1.8
RESET THRESHOLD
(NOMINAL)
4.625
4.375
3.053
2.888
2.313
2.188
1.665
1.575
V H-L = V PFI x (1 + R5 / R6 ) + (V PFI - V TERM ) [R5 / (R7 +
R8)]
V HYS = V PFI x (R5 / R7 ) - (V PFI - V TERM ) [R5 / (R7 +
R8)]
where V L-H is the threshold level for the monitored volt-
age rising and V H-L is the threshold level for the moni-
tored voltage falling.
Chip Information
PROCESS: BiCMOS
Table 2. Preset Timeout Period
PART
SUFFIX (_)
D0
D1
D2
D3
D4
RESET TIMEOUT PERIOD
(NOMINAL)
35μs
3.125ms
12.5ms
50ms
200ms
Table 3. ENABLE/ENABLE1 and HOLD Truth Table/State Table
OPERATING
STATE
Initial state
Turn-on state
Hold setup state
ENABLE1/
ENABLE
Low
High
High
HOLD
Don’t care
Don’t care
Low
REGULATOR 1
OUTPUT
Off
On
On
COMMENT
ENABLE/ENABLE1 is pulled to GND through internal pulldown.
OUT/OUT1 is disabled.
ENABLE/ENABLE1 is externally driven high turning OUT/OUT1
on. HOLD is pulled up to OUT/OUT1.
HOLD is externally pulled low while ENABLE/ENABLE1 remains
high, and the regulator latches on.
ENABLE/ENABLE1 is driven low (or allowed to float low by an
Hold state
Low
Low
On
internal pulldown). HOLD remains externally pulled low keeping
OUT/OUT1 on.
HOLD is driven high (or pulled high by the internal pullup) while
Off state
Low
High
Off
ENABLE/ENABLE1 is low. OUT/OUT1 is turned off and
ENABLE/ENABLE1 and HOLD logic returns to the initial state.
20
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