MAX16010 Datasheet, PDF (5/12 Pages) Maxim Integrated Products – Ultra-Small, Overvoltage Protection/Detection Circuits

Ultra-Small, Overvoltage Protection/
Detection Circuits
PIN
NAME
FUNCTION
Pin Description
1 1 1 1 V_CC Positive-Supply Input Voltage. Connect V_CC to a 5.5V to 72V supply.
2 2 2 2 GND Ground
3 ———
EN
Active-Low Enable Input. Drive EN low to turn on the voltage detectors. Drive EN high to force the
OUTA and OUTB outputs low. EN is internally pulled up to V_CC. Connect EN to GND if not used.
Open-Drain Monitor B Output. Connect a pullup resistor from OUTB to V_CC. OUTB goes low when
INB- exceeds V_TH+ and goes high when INB- drops below V_TH- (with LOGIC connected to GND for
4 4 — — OUTB the MAX16011). Drive LOGIC high to reverse OUTB’s logic state. OUTB is usually used as an
overvoltage output. OUTB goes low (LOGIC = low) or high (LOGIC = high) when V_CC drops below
the UVLO threshold voltage.
5 5 — — INB- Adjustable Voltage Monitor Threshold Input
6 6—5
Active-High ENABLE Input. For the MAX16010/MAX16011, drive EN high to turn on the voltage
EN
detectors. Drive EN low to force OUTA low and OUTB low (LOGIC = low) or high (LOGIC = high). For
the MAX16013/MAX16014, drive EN high to enhance the p-channel MOSFET (P2), and drive EN low
to turn off the MOSFET. EN is internally pulled down to GND. Connect EN to V_CC if not used.
Open-Drain Monitor A Output. Connect a pullup resistor from OUTA to V_CC. OUTA goes low when
7 7 — — OUTA INA+ drops below VTH- and goes high when INA+ exceeds VTH+. OUTA is usually used as an
undervoltage output. OUTA also goes low when V_CC drops below the UVLO threshold voltage.
8 8 — — INA+ Adjustable Voltage Monitor Threshold Input
—
3
—
—
LOGIC
OUTB Logic-Select Input. Connect LOGIC to GND or V_CC to configure the OUTB logic. See the
MAX16011 output logic table.
— — 3 — OUT ^{Open-Drain Comparator Output. Connect a pullup resistor from OUT to VCC. OUT goes low when}
IN+ drops below IN-. OUT goes high when IN+ exceeds IN-.
— — 4 — IN- Inverting Comparator Input
Internal 1.30V Reference Output. Connect REF to IN+ for active-low output. Connect REF to IN- for
— — 5 — REF active-high output. REF can source and sink up to 1µA. Leave REF floating if not used. REF output is
stable with capacitive loads from 0 to 50pF.
— — 6 — IN+ Noninverting Comparator Input
Gate-Driver Output. Connect GATE2 to the gate of an external p-channel MOSFET pass switch.
GATE2 is driven low to the higher of V_CC - 10V or GND during normal operations and quickly shorted
— — — 3 GATE2 to VCC during an overvoltage condition (SET above the internal threshold). GATE2 is shorted to VCC
when the supply voltage goes below the UVLO threshold voltage. GATE2 is shorted to V_CC when EN
is low.
——— 4
Device Overvoltage Threshold Adjustment Input. Connect SET to an external resistive divider network
SET to adjust the desired overvoltage disable or overvoltage limit threshold (see the Typical Application
Circuit and Overvoltage Limiter section).
———
6
GATE1
Gate-Driver Output. Connect GATE1 to the gate of an external p-channel MOSFET to provide low
drop reverse voltage protection.
— — — — EP Exposed Pad. Connect EP to GND.
_______________________________________________________________________________________ 5