MAX16021LTET+ Maxim Integrated Products, MAX16021LTET+ Datasheet - Page 11
![IC SUPERVISOR PP 3.100V 16TQFN](/photos/6/66/66625/16-tqfn_exp_pad_21-0136_sml.jpg)
MAX16021LTET+
Manufacturer Part Number
MAX16021LTET+
Description
IC SUPERVISOR PP 3.100V 16TQFN
Manufacturer
Maxim Integrated Products
Type
Simple Reset/Power-On Resetr
Datasheet
1.MAX16021LTES.pdf
(21 pages)
Specifications of MAX16021LTET+
Number Of Voltages Monitored
1
Output
Push-Pull, Totem Pole
Reset
Active High/Active Low
Reset Timeout
145 ms Minimum
Voltage - Threshold
3.1V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
16-TQFN Exposed Pad
Mounting Style
SMD/SMT
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
MAX16020 MAX16021
Battery-Backup Circuit and Chip-Enable Gating
10
11
12
13
14
15
16
—
9
PIN
10
11
12
13
14
15
16
—
9
______________________________________________________________________________________
Low-Power µP Supervisory Circuits with
CEOUT
RESET
NAME
WDO
CEIN
GND
OUT
PFO
V
EP
CC
Pin Description—MAX16020/MAX16021 (continued)
Active-Low Watchdog Output. WDO asserts when WDI remains high or low longer than the
watchdog timeout period. WDO returns high on the next WDI transition or when a reset is
asserted.
Active-Low Power-Fail Comparator Output. PFO goes low when V
0.6V V
Ground
Active-Low Reset Output. RESET asserts when V
pulled low. RESET remains low for the duration of the reset timeout period after V
above the reset threshold and MR goes high.
Switched Output. OUT is connected to V
V
greater than V
Active-Low Chip-Enable Output. CEOUT goes low only when CEIN is low and reset is not
asserted. If CEIN is low when reset is asserted, CEOUT stays low for 12µs (typ) or until
CEIN goes high, whichever occurs first.
Chip-Enable Input. The input to CE gating circuitry. Connect to GND or OUT if not used.
Supply Voltage Input. Bypass V
Exposed Pad. Internally connected to GND. Connect EP to a large ground plane to aid
heat dissipation. Do not use EP as the only ground connection for the device.
CC
is greater than V
PFT
threshold and goes high when V
CC
. Bypass OUT to GND with a 0.1µF (min) capacitor.
BATT
. OUT connects to BATT when RESET is asserted and V
CC
to GND with a 0.1µF capacitor.
FUNCTION
CC
PFI
when the reset output is not asserted or when
rises above V
CC
falls below the reset threshold or MR is
PFT
+ V
PFI
PFT-HYS
falls below the internal
hysteresis.
CC
BATT
rises
is
11