LM74502HDDF

Texas Instruments

-40℃~+125℃ 3.2V~65V Active High High Side Switch Over Voltage Protection SOT-23-8-THIN Power Distribution Switches ROHS

Extended

Datasheetti/LM74502HDDF

Category: Power Distribution Switches
Package: SOT-23-8-THIN
Pins: 8

Overview

The LM74502HDDF is a power Distribution Switche made by Texas Instruments in a SOT-23-8-THIN package with 8 pins. -40℃~+125℃ 3.2V~65V Active High High Side Switch Over Voltage Protection SOT-23-8-THIN Power Distribution Switches ROHS.

PCBKit's library has its KiCad symbol (corpus:LM74502HDDFR_6819ef37, from open boards on GitHub) and its footprint (Package_TO_SOT_SMD:SOT-23-8, from KiCad's library), ready for a KiCad board. 4,426 are in stock at JLCPCB (part C5219202). 1 open-source board in 1 repository on GitHub use it.

Symbol

corpus:LM74502HDDFR_6819ef37From open boards on GitHub

Footprint

Package_TO_SOT_SMD:SOT-23-8From KiCad's library

From the datasheet

Supply, least: 60 V · VS, recommended operating min · p. 4
Supply, most: 60 V · VS, recommended operating max · p. 4
Supply, absolute maximum: 65 V · VS to GND, absolute max · p. 4
Junction, hottest: 150 °C · operating junction temperature max · p. 4
Takes working: 45 µA · VS operating quiescent current, typical · p. 5
Takes asleep: 900 nA · VS shutdown current, EN/UVLO = 0 V, typical · p. 5
Junction to air (DDF (SOT)): 133.8 K/W · junction-to-ambient thermal resistance · p. 5
Junction to case (DDF (SOT)): 72.6 K/W · junction-to-case top thermal resistance · p. 5
Junction to board (DDF (SOT)): 54.5 K/W · junction-to-board thermal resistance · p. 5

What it is and has

Reverse input voltage rating: –65 V · p. 1
Charge pump: Integrated · p. 1
Peak gate drive source capacity: 11 mA · p. 1
Peak gate sink current capacity: 2.3 A · p. 1
Enable: Enable pin · p. 1
Protection: Adjustable overvoltage and undervoltage protection · p. 1

Around it

cap 100-nF: between VS and GND; Input supply capacitor. · p. 3
cap 0.1 µF: between VCAP and VS; Minimum external charge pump capacitance. · p. 4

Specifications

Parameter	Conditions	As printed	Page
VS to GND	over operating free-air temperature range	min -65 · max 65 V	4
EN/UVLO, OV to GND	V(VS) > 0 V	min -0.3 · max 65 V	4
GATE to SRC		min 0 · max 15 V	4
VCAP to VS		min -0.3 · max 15 V	4
Operating junction temperature		min -40 · max 150 °C	4
Storage temperature Tstg		min -40 · max 150 °C	4
Electrostatic discharge V(ESD)	Human body model (HBM), per ANSI/ESDA/JEDEC JS-001, all pins; rating ±2000 V	max 2000 V	4
Electrostatic discharge V(ESD)	Charged device model (CDM), per ANSI/ESDA/JEDEC JS-002, all pins; rating ±750 V	max 750 V	4
VS to GND	over operating free-air temperature range	min -60 · max 60 V	4
EN/UVLO, OV, SRC to GND	over operating free-air temperature range	min -60 · max 60 V	4
External capacitance	VS	min 22 nF	4
External capacitance	VCAP to VS	min 0.1 uF	4
External MOSFET max VGS rating	GATE to SRC	min 15 V	4
Operating junction temperature range TJ		min -40 · max 150 °C	4
Junction-to-ambient thermal resistance RθJA	LM74502H, DDF (SOT), 8 PINS	typ 133.8 °C/W	5
Junction-to-case (top) thermal resistance RθJC(top)	LM74502H, DDF (SOT), 8 PINS	typ 72.6 °C/W	5
Junction-to-board thermal resistance RθJB	LM74502H, DDF (SOT), 8 PINS	typ 54.5 °C/W	5
Junction-to-top characterization parameter ΨJT	LM74502H, DDF (SOT), 8 PINS	typ 4.6 °C/W	5
Junction-to-board characterization parameter ΨJB	LM74502H, DDF (SOT), 8 PINS	typ 54.2 °C/W	5
Operating input voltage V(VS)	TJ = –40°C to +125°C	min 4 · max 60 V	5
VS POR Rising threshold V (VS_POR)		max 3.9 V	5
VS POR Falling threshold V (VS_POR)		min 2.2 · typ 2.8 · max 3.1 V	5
VS POR Hysteresis V(VS POR(Hys))		min 0.44 · max 0.67 V	5
Shutdown Supply Current I(SHDN)	V(EN/UVLO) = 0 V	typ 0.9 · max 1.5 uA	5
Operating Quiescent Current I(Q)	IGND	typ 45 · max 65 uA	5
VS pin leakage current during input reverse polarity I(REV)	0 V ≤ V(VS) ≤ – 65 V	typ 100 · max 150 uA	5
Enable/UVLO falling threshold V(EN_UVLOF)		min 1.027 · typ 1.14 · max 1.235 V	5
Enable/UVLO rising threshold V(EN_UVLOR)		min 1.16 · typ 1.24 · max 1.32 V	5
Enable threshold voltage for low IQ shutdown V(ENF)		min 0.32 · typ 0.64 · max 0.94 V	5
Enable Hysteresis V(EN_Hys)		min 38 · typ 90 · max 132 mV	5
Enable sink current I(EN/UVLO)	V(EN/UVLO) = 12 V	typ 3 · max 5 uA	5
Peak source current I(GATE)	V(GATE) – V(SRC) = 5 V, LM74502H	min 3 · typ 11 mA	5
Peak sink current I(GATE)	EN= High to Low; V(GATE) – V(SRC) = 5 V	typ 2370 mA	5
discharge switch RDSON RDSON	EN = High to Low; V(GATE) – V(SRC) = 100 mV	min 0.4 · max 2 Ω	5
Charge Pump source current (Charge pump on) I(VCAP)	V(VCAP) – V(VS) = 7 V	min 162 · typ 300 · max 600 uA	5
Charge Pump sink current (Charge pump off) I(VCAP)	V(VCAP) – V(VS) = 14 V	typ 5 · max 10 uA	5
Charge pump voltage at V(VS) = 3.2 V V(VCAP) – V(VS)	I(VCAP) ≤ 30 uA	min 8 V	5
Charge pump turn on voltage V(VCAP) – V(VS)		min 10.3 · typ 11.6 · max 13 V	5
Charge pump turn off voltage V(VCAP) – V(VS)		min 11 · typ 12.4 · max 13.9 V	5
Charge Pump Enable comparator Hysteresis V(VCAP) – V(VS)		min 0.45 · typ 0.8 · max 1.25 V	5
V(VCAP) – V(S) UV release at rising edge V(VCAP UVLO)		min 5.7 · typ 6.5 · max 7.5 V	6
V(VCAP) – V(S) UV threshold at falling edge V(VCAP UVLO)		min 5.05 · typ 5.4 · max 6.2 V	6
Overvoltage threshold input, rising V(OVR)		min 1.165 · typ 1.25 · max 1.333 V	6
Overvoltage threshold input, falling V(OVF)		min 1.063 · typ 1.143 · max 1.222 V	6
OV Hysteresis V(OV_Hys)		typ 100 mV	6
OV Input leakage current I(OV)	0 V < V(OV) < 5 V	min 12 · typ 50 · max 110 nA	6
EN high to Gate Turn On delay ENTDLY	V(VCAP) > V(VCAP UVLOR), V(EN/UVLO) > V(EN_UVLOR) to V(GATE-SRC) > 5 V, C(GATE-SRC) = 4.7 nF LM74502H	typ 75 · max 110 us	6
GATE Turnoff delay during EN/UVLO tUVLO_OFF(deg)_GATE	V(EN/UVLO) ↓ to V(GATE-SRC) < 1 V, C(GATE-SRC) = 4.7 nF	typ 2 us	6
GATE Turnoff delay during OV tOVP_OFF(deg)_GATE	V(OV) ↑ to V(GATE-SRC) < 1 V, C(GATE-SRC) = 4.7 nF	typ 0.6 · max 1 us	6
GATE Turnon delay during OV tOVP_ON(deg)_GATE	V(OV) ↓ to V(GATE-SRC) > 5 V, C(GATE-SRC) = 4.7 nF, LM74502H	typ 5 · max 10 us	6

Pins, by the datasheet

1 EN/UVLO: Enable and undervoltage lockout input; connect to VS for always ON operation, drive externally, or connect an input-to-ground resistor divider for UVLO. Pull low for shutdown. · p. 3
2 GND: Ground pin. · p. 3
3 N.C: No connection. · p. 3
4 VCAP: Charge pump output; connect to external charge pump capacitor. · p. 3
5 VS: Controller input power supply; connect a 100-nF capacitor across VS and GND. · p. 3
6 GATE: Gate drive output; connect to the gate of the external N-channel MOSFET. · p. 3
7 OV: Adjustable overvoltage threshold input; connect an input-to-ground resistor divider. Pulls GATE low above the cutoff threshold and enables it below the falling threshold. Ground when unused. · p. 3
8 SRC: Connect to the common source of external back-to-back N-channel MOSFETs or the source of the high side switch MOSFET. · p. 3

Parameters

Control Input Logic: Active High
Current - Supply: 45uA
Features: Overvoltage Protection
Junction Temperature(Max): 150℃
Number of Channels: 1
Operating Temperature -: -40℃~+125℃
Standby Current: 900nA
Thermal Resistance(Junction to Ambient): 133.8℃/W
Thermal Resistance(Junction to Board): 54.5℃/W
Thermal Resistance(Junction to Case): 72.6℃/W
Type: High Side Switch
Voltage - Supply: 60V~60V
Voltage - Supply(Absolute Max): 65V

Order codes

LM74502HDDFRLCSC C5219202

Pinout

The pins of the LM74502HDDF
Pin	Name	Type
1	EN/UVLO	Passive
2	GND	Passive
3	N.C	Not connected
4	VCAP	Passive
5	VS	Passive
6	GATE	Passive
7	OV	Passive
8	SRC	Passive

Open-source boards using it

All 1

4 layers144 × 127 mm
Frothfet
hoeken/frothfet
Yarrboard load controller board with current sense, volt sense, fuses, and sender support.
394 parts14GPL-3.0

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Questions

Is there a KiCad symbol and footprint for the LM74502HDDF?

Yes. The symbol is corpus:LM74502HDDFR_6819ef37 and the footprint Package_TO_SOT_SMD:SOT-23-8, both drawn on this page. PCBKit places them on a board for you when you design with it.

What package is the LM74502HDDF?

SOT-23-8-THIN, with 8 pins. Its footprint is drawn on this page.

Where is the LM74502HDDF datasheet?

Texas Instruments publishes it: the Datasheet link on this page opens it.

Where can I order the LM74502HDDF?

JLCPCB lists it as part C5219202, with 4,426 in stock; the sellers' links on this page open their listings.

What can replace the LM74502HDDF?

Parts like it in the library: the LM74502DDF by Texas Instruments, the LM74500QDDFRQ1 by Texas Instruments, the LM74502QDDFRQ1 by Texas Instruments and the LTC4365CTS8#TRPBF by Analog Devices. Check their datasheets: a part that fits the footprint may still differ in its ratings.

Which open-source boards use the LM74502HDDF?

1 board in 1 repository on GitHub; the most starred are listed on this page, with their KiCad files.

LM74502HDDF

Overview

Symbol

Footprint

From the datasheet

What it is and has

Around it

Specifications

Pins, by the datasheet

Parameters

Order codes

Pinout

Open-source boards using it

Frothfet

Show this part on your page

Questions

Is there a KiCad symbol and footprint for the LM74502HDDF?

What package is the LM74502HDDF?

Where is the LM74502HDDF datasheet?

Where can I order the LM74502HDDF?

What can replace the LM74502HDDF?

Which open-source boards use the LM74502HDDF?

Parts like it

LM74502DDF

LM74500QDDFRQ1

LM74502QDDFRQ1

LTC4365CTS8#TRPBF

LM74501QDDFRQ1

TPS22960DCN

MP5013AGJ-Z

LM74700MDDFREP