MAX14691 Datasheet, PDF (17/19 Pages) Maxim Integrated Products – High-Accuracy, Adjustable Power Limiter

MAX14691–MAX14693
High-Accuracy, Adjustable Power Limiter
ESD Test Conditions
The devices are specified for ±15kV (HBM) ESD on IN
when IN is bypassed to ground with a 1µF, low ESR
ceramic capacitor. No capacitor is required for ±2kV
(HBM) (typ) ESD on IN. All pins have ±2kV (HBM) ESD
protection.
HBM ESD Protection
Figure 6 shows the Human Body Model and Figure 7
shows the current waveform it generates when discharged
into low impedance. This model consists of a 100pF
capacitor charged to the ESD voltage of interest, which is
then discharged into the device through a 1.5kΩ resistor.
IP 100%
IR
90%
AMPERES
36.8%
10%
0
tRL
TIME
tDL
CURRENT WAVEFORM
Figure 7. Human Body Current Waveform
RC
1MΩ
RD
1.5KΩ
CHARGE-CURRENT-
LIMIT RESISTOR
HIGH-
VOLTAGE
DC
SOURCE
DISCHARGE
RESISTANCE
STORAGE
CAPACITOR
DEVICE
UNDER
TEST
Figure 6. Human Body ESD Test Model
Typical Application Circuit
*R1, R2, R3, AND R4 ARE ONLY
REQURED FOR ADJUSTABLE
UVLO/OVLO FUNCTIONALITY.
OTHERWISE, TIE THE PIN TO
GND TO USE THE INTERNAL,
PRE-PROGRAMMED
THRESHOLD.
POWER
SYSTEM
INPUT
220kΩ
HVEN
GND
VIN
CIN
VIN
R1*
R2*
VIN
R3*
R4*
x
10kΩ
GP
UVLO
OVLO
HVEN
CLTS2
CLTS1
IN
IN IN IN IN
OUT
OUT
MAX14691–
OUT
MAX14693
OUT
OUT
SETI
RIPEN
FLAG
EN
GND
PROTECTED
POWER
COUT
SYSTEM
CONTROLLER
ADC
ENB
FAULT
EN
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