SLVSC26 Data sheet

SLVSC26B November 2013 – May 2024 TPS61162A , TPS61163A

PRODUCTION DATA

5.5 Electrical Characteristics

V_IN = 3.6V, EN = high, PWM = high, IFB current = 20mA, T_J = –40°C to 125°C, typical values are at T_J = 25°C (unless otherwise noted).

PARAMETER		TEST CONDITIONS	MIN	TYP	MAX	UNIT
POWER SUPPLY
V_IN	Input voltage range		2.7		6.5	V
V_{VIN_UVLO}	Undervoltage lockout threshold	V_IN falling		2.2	2.3	V
V_{VIN_UVLO}	Undervoltage lockout threshold	V_IN rising			2.45	V
V_{VIN_HYS}	VIN UVLO hysteresis			100		mV
I_q	Operating quiescent current into VIN	Device enable, switching 1.2MHz and no load, V_IN = 3.6V		1.2	2	mA
I_SD	Shutdown current	EN = low		1	2	µA
EN and PWM
V_H	EN Logic high		1.2			V
V_L	EN Logic Low				0.4	V
V_H	PWM Logic high		1.2			V
V_L	PWM Logic Low				0.4	V
R_PD	EN pin and PWM pin internal pulldown resistor		400	800	1600	kΩ
t_{PWM_SD}	PWM logic low width to shutdown	PWM high to low	20			ms
t_{EN_SD}	EN logic low width to shutdown	EN high to low	2.5			ms
CURRENT REGULATION
V_{ISET_full}	ISET pin voltage	Full brightness	1.204	1.229	1.253	V
K_{ISET_full}	Current multiplier	Full brightness		1030
I_{FB_avg}	Current accuracy	I_ISET = 20μA, D = 100%, 0°C to 70°C	–2%		2%
I_{FB_avg}	Current accuracy	I_ISET = 20µA, D = 100%, –40°C to 85°C	–2.3%		2.3%
K_M	(I_MAX – I_AVG) / I_AVG	D = 100%		1%	2%
K_M	(I_MAX – I_AVG) / I_AVG	D = 25%		1%
I_{IFB_max}	Current sink max output current	I_ISET = 35μA, each IFBx pin	30			mA
POWER SWITCH
R_DS(on)	Switch MOSFET on-resistance	V_IN = 3.6V		0.25		Ω
R_DS(on)	Switch MOSFET on-resistance	V_IN = 3V		0.3		Ω
I_{LEAK_SW}	Switch MOSFET leakage current	V_SW = 35V, T_J = 25°C			1	µA
OSCILLATOR
f_SW	Oscillator frequency		1000	1200	1500	kHz
D_max	Maximum duty cycle	Measured on the drive signal of switch MOSFET	89%	95%
BOOST VOLTAGE CONTROL
V_{IFB_reg}	IFBx feedback regulation voltage	I_IFBx = 20mA, measured on IFBx pin which has a lower voltage		90		mV
I_sink	COMP pin sink current			12		µA
I_source	COMP pin source current			5		µA
G_ea	Error amplifier transconductance		30	55	80	µmho
R_ea	Error amplifier output resistance			45.5		MΩ
f_ea	Error amplifier crossover frequency	5pF connected to COMP pin		1.65		MHz
PROTECTION
I_LIM	Switch MOSFET current limit	D = D_max, 0°C to 70°C	1	1.5	2	A
I_{LIM_Start}	Switch MOSFET start-up current limit	D = D_max		0.7		A
t_{Half_LIM}	Time window for half current limit			5		ms
V_{OVP_SW}	SW pin overvoltage threshold	TPS61162A	25	26.5	28	V
V_{OVP_SW}	SW pin overvoltage threshold	TPS61163A	36	37.5	39	V
V_{OVP_IFB}	IFBx pin overvoltage threshold	Measured on IFBx pin	4.2	4.5	5	V
V_ACKNL	Acknowledge output voltage low Open drain, R_pullup = 15kΩ to V_IN⁽²⁾				0.4	V
THERMAL SHUTDOWN
T_shutdown	Thermal shutdown threshold			160		°C
T_hys	Thermal shutdown hysteresis			15		°C

(1) To select EasyScale interface, after t_{es_delay} delay from EN low to high, drive EN pin to low for more than t_{es_det} before t_{es_win} expires.

(2) Acknowledge condition active 0, this condition is only applied when the RFA bit is set to 1. To use this feature, master must have an open drain output, and the data line needs to be pulled up by the master with a resistor load.