CH213KS

3. Package

Manufacturer

WCH

Overview

Part 1: Markdown Summary

Part: CH213 from WCH

Type: Low Dropout Ideal Diode Chip with Current Limiting Function

Key Specs:

Maximum on-current: ~1A at 5V
Current limit threshold: ~1.3A
Supply voltage range: 2.2V~5.5V
Typical on-resistance: 160mΩ
Typical voltage drop: 32mV at 200mA
Typical quiescent operating current: 4uA
Fast current limit protection: Typical 20uS

Features:

Built-in power switching tube, typical 160mΩ on-resistance.
Low turn-on voltage and low dropout single conductor, typical voltage drop of 32mV at 200mA current.
Support maximum on-current of about 1A at 5V and current limit of about 1.3A.
Support power supply voltage 2.2V~5.5V.
Typical 20uS fast current limit protection in case of output over-current or output short-circuit.
Diode chip shutdown to protect the load circuit at the output in case of input power polarity error.
Low-power consumption, typical 4uA quiescent operating current.
No reverse conduction current in diode chip off state.

Applications:

DC applications with no more than 1A current at 5V
Protection of power supply systems by limiting output current during over-current conditions
Protection of load circuits at VO output when input power supply polarity is wrong

Package:

SOT23-3: 1.6mm width, 1.9mm spacing
SOT23-6: 1.6mm width, 0.95mm spacing
DFN6: 2*2mm, 0.65mm spacing

Electrical Characteristics

Name	Parameter Descrip	otion	Min.	Typ.	Max.	Unit
VI,VO	Supply voltage (take the higher VI or VO)	er voltage among	2.2	5.0	5.5	V
Iq	Quiet operating current	at turn-on		3.6	10	uA
Isdo	Operating current at the VO s	ide at shutdown		2.7	10	uA
Isdi	Operating current at the VI si	ide at shutdown		0	1	uA
Ioff	Reverse conduction current fi shutdown	rom VO to VI at		0	3	uA
Vsw	Ideal differential pressure thro		14		mV
Ron	Power switching tube on- resistance	Iout=500mA	120	160	240	mΩ
Iout	Ideal diode on-current range		0	500	900	mA
Imax	Current limit threshold, overcurrent protection current threshold		1.05	1.3	1.6	A
Vshort	VO short-circuit protection v	oltage threshold	0.8	0.95	1.1	V
Ishort	VO short-circuit current to gre		180	250	330	mA
Vdrmin	Ideal diode conduction minimum voltage drop	Iout=0.1mA	2	15	30	mV
Vdr100		Iout=100mA	6	20	40	mV
Vdr200	77-14 4441	Iout=200mA	16	32	57	mV
Vdr300	Voltage drop when the ideal	Iout=300mA	28	48	80	mV
Vdr500	diode is on	Iout=500mA	52	80	130	mV
Vdr1k		Iout=1000mA	120	160	240	mV
Tsd	Over-temperature protection	Rising stage		130		°C

	threshold (with hysteresis characteristics)	Falling stage		100		°C
Ton	Main guide opening time	Cload=1uF		600	1200	uS
Tshort	Overcurrent or short circuit protection response time	Cload=1uF		10	60	uS
Rload	Resistive load range at the VO output		5			Ω
Cload	Capacitive load range at the	0.0001	0.1~10	500	uF

Absolute Maximum Ratings

Name	Parameter Description	Min.	Max.	Unit
TA	Ambient temperature at work	-40	85	°C
TS	Ambient temperature during storage	-55	150	°C
VI	Supply voltage of VI pin to GND pin	-6.5	6.5	V
VO	Supply voltage of VO pin to GND pin	-0.5	6.5	V
VDIFF	Voltage difference between VI pin and VO pin (VI-VO)	-6.5	6.5	V
VESD	HBM mannequin ESD tolerant voltage	2		V
PD	Maximum power consumption of the whole chip		400	mW
θ_JAS	SOT23, SOT23-6L package thermal resistance	220 °C/W		°C/W
θ_JAQ	DFN6_2x2 package thermal resistance	14	40	°C/W

Related Variants

The following components are covered by the same datasheet.

Part Number	Manufacturer	Package
CH213	WCH	—
CH213B	WCH	—
CH213K	WCH	SOT-23-3
CH213L	WCH	—

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