米6体育平台手机版

ZHCSKD1C October 2019 – January 2021 TCA9511A

PRODUCTION DATA

6.5 Electrical Characteristics

Over operating free-air temperature range (unless otherwise noted). Typical specifications are at T_A = 25 °C, V_CC = 3.3 V, unless otherwise noted.

PARAMETER		TEST CONDITIONS	MIN	TYP	MAX	UNIT
POWER SUPPLY
I_CC	Supply current	VCC = 5.5V SDAIN, SCLIN = 0V SDAOUT, SCLOUT = 10k R_PU		2.5	4.5	mA
I_SD	Supply current in shutdown mode through the V_CC pin⁽¹⁾	EN = 0 V SDAIN, SCLIN, SDAOUT, SCLOUT = 0V or V_CC READY pin = Hi-Z EN pulled low after bus connection event (disable precharge)		5	30	µA
UVLO	Under voltage lockout (rising)	EN = V_CC READY = 10 kΩ to V_CC		2.1		V
UVLO	Under voltage lockout (falling)	EN = V_CC READY = 10 kΩ to V_CC		2		V
START-UP CIRCUITRY
V_PRE	Pre-charge voltage	SDA, SCL = Hi-Z	0.8	1	1.2	V
RISE-TIME ACCELERATORS
I_PU	RTA pull-up current⁽²⁾	Position transition on SDA, SCL V_SDA/SCL = 0.6 V, Slew rate = 1.25 V/µs. VCC = 3.3 V	2	5		mA
INPUT-OUTPUT CONNECTION
I_LI	Input pin leakage	SDA/SCL pins = 90% V_CC, EN = V_CC, GND SDA/SCL pins = 10% V_CC, EN = GND	-1		1	µA
V_OS	Input-output offset voltage (SCLIN to SCLOUT, SCLOUT to SCLIN and SDAIN to SDAOUT, SDAOUT to SDAIN	R_PU for SDA/SCL = 10 kΩ		60	100	mV
I_{I_RDY}	Ready pin leakage	EN = VCC, READY = V_CC, Bus connected	-1		1	µA
DIGITAL IO THRESHOLD
V_IH	High-level input voltage	EN	0.7 × V_CC		V_CC	V
V_IL	Low-level input voltage	EN	0		0.3 × V_CC
V_OL	Low-level output voltage	SDAIN, SCLIN, SDAOUT, SCLOUT I_OL = 4 mA V_IN = 0.1 V		0.15	0.4
V_OL	Low-level output voltage	READY I_OL = 3 mA	0		0.4
DYNAMIC CHARACTERISTICS
C_{IN (EN)}	EN input capacitance	V_EN = 0 V or V_CC f = 400 kHz		1.6	4	pF
C_{IO (READY)}	READY output capacitance	V_READY = 0 V or V_CC f = 400 kHz		7	10
C_{IO (SDA/SCL)}	SDA/SCL pin capacitance	V_PIN = 0 V or V_CC f = 400 kHz		5	10

(1) In shutdown mode there will also be current flowing from V_CC through the ready pin as this pin is pulled down to indicate the bus is disconnected.

(2) Determined by design, not tested in production.