PCA9519 2 4-channel level translating I C-bus/SMBus repeater Rev. 3 10 January 2013 Product data sheet 1. General description 2 The PCA9519 is a 4-channel level translating I C-bus/SMBus repeater that enables the 2 processor low voltage 2-wire serial bus to interface with standard I C-bus or SMBus I/O. 2 While retaining all the operating modes and features of the I C-bus system during the 2 level shifts, it also permits extension of the I C-bus by providing bidirectional buffering for 2 both the data (SDA) and the clock (SCL) lines, thus enabling the I C-bus or SMBus maximum capacitance of 400 pF on the higher voltage side. The SDA and SCL pins are over-voltage tolerant and are high-impedance when the PCA9519 is unpowered. The port B drivers are compliant with SMBus I/O levels, while port A uses a current sensing mechanism to detect the input or output LOW signal which prevents bus lock-up. The port A uses a 1 mA current source for pull-up and a 200 pull-down driver. This results in a LOW on port A accommodating smaller voltage swings. The output pull-down on the port A internal buffer LOW is set for approximately 0.2 V, while the input threshold of the internal buffer is set about 50 mV lower than that of the output voltage LOW. When the port A I/O is driven LOW internally, the LOW is not recognized as a LOW by the input. This prevents a lock-up condition from occurring. The output pull-down on the port B 2 drives a hard LOW and the input level is set at 0.3 of SMBus or I C-bus voltage level 2 which enables port B to connect to any other I C-bus device or buffer. The PCA9519 drivers are not enabled unless V is above 0.8 V and V is above CC(A) CC(B) 2.5 V. The enable (EN) pin can also be used to turn the drivers on and off under system control. Caution should be observed to only change the state of the EN pin when the bus is idle. 2. Features and benefits 4-channel (4 SCL/SDA pairs), bidirectional buffer isolates capacitance and allows 400 pF on port B of the device Voltage level translation from port A (1 V to V 1.5 V) to port B (3.0 V to 5.5 V) CC(B) Requires no external pull-up resistors on lower voltage port A Active HIGH repeater enable input Open-drain inputs/outputs Lock-up free operation Supports arbitration and clock stretching across the repeater 2 Accommodates Standard-mode and Fast-mode I C-bus devices and multiple masters 2 Powered-off high-impedance I C-bus pins Operating supply voltage range of 1.0 V to V 1.5 V on port A, 3.0 V to 5.5 V on CC(B) port B 5 V tolerant B-side SCL and SDA and enable pins 50 ns glitch filter on B-side inputPCA9519 NXP Semiconductors 2 4-channel level translating I C-bus/SMBus repeater 0 Hz to 400 kHz clock frequency Remark: The maximum system operating frequency may be less than 400 kHz because of the delays added by the repeater. ESD protection exceeds 2000 V HBM per JESD22-A114 and 1000 V CDM per JESD22-C101 Latch-up testing is done to JEDEC Standard JESD78 which exceeds 100 mA Packages offered: TSSOP20, HVQFN24 3. Ordering information Table 1. Ordering information Type number Topside Package marking Name Description Version PCA9519PW PA9519 TSSOP20 plastic thin shrink small outline package 20 leads SOT360-1 body width 4.4 mm PCA9519BS 9519 HVQFN24 plastic thermal enhanced very thin quad flat package no leads SOT616-1 24 terminals body 4 4 0.85 mm 3.1 Ordering options Table 2. Ordering options Type number Orderable Package Packing method Minimum Temperature range part number order quantity PCA9519PW PCA9519PW,118 TSSOP20 Reel pack, SMD, 13-inch 2500 T = 40 C to +85 C amb PCA9519BS PCA9519BS,118 HVQFN24 Reel pack, SMD, 13-inch 6000 T = 40 C to +85 C amb PCA9519 All information provided in this document is subject to legal disclaimers. NXP B.V. 2013. All rights reserved. Product data sheet Rev. 3 10 January 2013 2 of 21