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参数资料
| 型号： | MAX6364HUT29-T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 5/11页 |
| 文件大小： | 0K |
| 描述： | IC CIRC SUPERVISORY LP SOT23-6 |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 类型： | 备用电池电路 |
| 监视电压数目： | 1 |
| 输出： | 开路漏极或开路集电极 |
| 复位： | 高有效 |
| 复位超时： | 最小为 150 ms |
| 电压 - 阀值： | 2.93V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | SOT-23-6 |
| 供应商设备封装： | SOT-6 |
| 包装： | 带卷 (TR) |
SOT23, Low-Power μP Supervisory Circuits
with Battery Backup
Typical Operating Characteristics (continued)
(T A = +25°C, unless otherwise noted.)
MAX6364
MAX6364
BATTERY SUPPLY CURRENT
vs. SUPPLY VOLTAGE
RESET IN THRESHOLD
vs. TEMPERATURE
RESET IN TO RESET PROPAGATION DELAY
vs. TEMPERATURE
10
9
8
7
V BATT = 2.8V
V TH = 2.93V
1.236
2.8
2.5
V OD = 50mV
6
2.2
5
4
3
2
1
0
V BATT = 2.5V
V BATT = 2.3V
1.235
1.234
1.9
1.6
1.3
1.0
0
1
2
3
4
-40
-20
0
20
40
60
80
-40
-20
0
20
40
60
80
V CC (V)
TEMPERATURE (°C)
TEMPERATURE (°C)
Pin Description
PIN
1
2
3
4
5
6
NAME
RESET
RESET
GND
MR
WDI
BATT ON
RESET IN
V CC
OUT
BATT
FUNCTION
Active-High Reset Output. RESET is continuously high when V CC is below the reset threshold (V TH ), MR is
low, or RESET IN is low. It asserts in pulses when the internal watchdog times out. RESET remains high
for the reset timeout period (t RP ) after V CC rises above the reset threshold, after the manual reset input
goes from low to high, after RESET IN goes high, or after the watchdog triggers a reset event. The
MAX636_H is an active-high open-drain output.
Active-Low Reset Output. RESET is continuously low when V CC is below the reset threshold (V TH ), MR is
low, or RESET IN is low. It asserts in pulses when the internal watchdog times out. RESET remains low for
the reset timeout period (t RP ) after V CC rises above the reset threshold, after the manual reset input goes
from low to high, after RESET IN goes high, or after the watchdog triggers a reset event. The MAX636_L
is an active-low push-pull output while the MAX636_P is an active-low open-drain output.
Ground
MAX6361 Manual-Reset Input. Maintaining logic low on MR asserts a reset. Reset output remains assert-
ed for at least 150ms (t RP ) after MR transitions from low to high. Leave unconnected or connected to V CC
if not used.
MAX6362 Watchdog Input. If WDI remains high or low for longer than the watchdog timeout period (t WD ), the
internal watchdog timer runs out and a reset pulse is triggered for the reset timeout period (t RP ) (Figure 1). The
internal watchdog clears whenever reset asserts or whenever WDI sees a rising or falling edge.
MAX6363 Battery-On Output. BATT ON goes high in battery backup mode.
MAX6364 Reset Input. When RESET IN falls below 1.235V, reset is asserted. Reset output remains
asserted as long as RESET IN is low and for at least 150ms (t RP ) after RESET IN goes high.
Supply Voltage, 0 to 5.5V. Reset is asserted when V CC drops below the reset threshold voltage (V TH ).
Reset remains asserted until V CC rises above V TH and for at least 150ms after V CC rises above V TH .
Output. OUT sources from V CC when it is above the reset threshold (V TH ), and from the greater of V CC or
BATT when V CC is below V TH .
Backup-Battery Input. When V CC falls below the reset threshold, BATT switches to OUT if V BATT is 20mV
greater than V CC . When V CC rises 20mV above V BATT , V CC switches to OUT. The 40mV hysteresis
prevents repeated switching if V CC falls slowly.
_______________________________________________________________________________________
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