BL13232ESO

BL13232E 3V to 5.5V，250kbps RS-232 Transceivers Description The BL13232E consists of two drivers, two receivers, and a dual charge-pump circuit with ±12kV IEC 61000-4-2 Contact Discharge ESD protection. The BL13232E meets the requirements of TIA/EIA-232-F and provides the electrical interface between an asynchronous communication controller and the serial-port connector. The charge pump and four small external capacitors allow operation from a single 3V to 5.5V supply. The device operates at data signaling rates up to 250 kbps. The BL13232E is available in SOP16 and TSSOP16 package. Features ➢ Function Block ESD protection for RS-232 Bus Pins – ±12kV (IEC61000-4-2, Contact Discharge) – ±15kV (IEC61000-4-2, Air-Gap Discharge) ➢ Meets the Requirements of TIA/EIA-232-F standard ➢ Wide Power Supply Range: Single +3V to +5.5V ➢ Operates up to 250kbps ➢ Two Drivers and Two Receivers ➢ External Capacitors: 4 × 0.1 μF ➢ Accepts 5V Logic Input With 3.3V Supply Applications ➢ Battery-Powered Equipment ➢ Industry Human Machine Interface ➢ Notebook, Computers ➢ Printers www.belling.com.cn Page- 1 - V1.0 BL13232E Ordering Information Part Number Package Operation Temp. BL13232ESO SOP16 -40~﹢125℃ BL13232ETS TSSOP16 -40~﹢125℃ Pin Configuration and Functions PIN NO. NAME I/O 1 C1+ — Positive lead of C1 capacitor 2 V+ O Positive charge pump output for storage capacitor only 3 C1– — Negative lead of C1 capacitor 4 C2+ — Positive lead of C2 capacitor 5 C2– — Negative lead of C2 capacitor 6 V– O Negative charge pump output for storage capacitor only 7 DOUT2 O RS232 Driver Output 8 RIN2 I RS232 Receiver Input 9 ROUT2 O TTL/CMOS Receiver Output 10 DIN2 I TTL/CMOS Driver Input 11 DIN1 I TTL/CMOS Driver Input 12 ROUT1 O TTL/CMOS Receiver Output 13 RIN1 I RS232 Receiver Input 14 DOUT1 O RS232 Driver Output 15 GND — Ground 16 VCC — Supply Voltage www.belling.com.cn DESCRIPTION Page2 V1.0 BL13232E Absolute Maximum Ratings MIN MAX UNIT VCC Supply voltage -0.3 6 V V+ Positive output supply voltage -0.3 7 V V– Negative output supply voltage 0.3 -7 V V+ – V– Supply voltage difference 13 V VI Input voltage VO Drivers -0.3 6 V Receivers -25 25 V Drivers -13.2 13.2 V Receivers -0.3 VCC + 0.3 V 150 °C 150 °C Output voltage TJ Operating virtual junction temperature Tstg Storage temperature -65 Note 1 ：Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under Recommended Operating Conditions is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. Recommended Operating Conditions (Test conditions: C1–C4 = 0.1μF at VCC = 3.3V±0.3V; C1 = 0.047μF, C2–C4 = 0.33μF at VCC = 5V±0.5V) MIN VCC = 3.3 V Supply voltage VCC = 5 V VIH VCC = 3.3 V Driver high-level input NOM MAX 3 3.3 3.6 4.5 5 5.5 2 5.5 2.4 5.5 DIN voltage UNIT V V VCC = 5 V VIL Driver low-level input DIN 0 0.8 V VI voltage Receiver input voltage RIN –25 25 V –40 125 ℃ TA Operating free-air temperature www.belling.com.cn Page3 V1.0 BL13232E Electrical Characteristics (Test conditions: C1–C4 = 0.1μF at VCC = 3.3V±0.3V; C1 = 0.047μF, C2–C4 = 0.33μF at VCC = 5V±0.5V, TA = -40~125℃, unless otherwise noted. Typical values are at TA = +25°C.) PARAMETER ICC Supply current TEST CONDITIONS MIN No load, VCC = 3.3 V or 5 V TYP MAX UNIT 1.5 mA 5 5.4 V –5 –5.4 V Driver DOUT at RL = 3 kΩ to GND, VOH High-level output voltage DIN = GND DOUT at RL = 3 kΩ to GND, VOL Low-level output voltage DIN = VCC IIH High-level input current VI = VCC ±0.01 ±1 μA IIL Low-level input current VI at GND ±0.01 ±1 μA IOS Short-circuit output current ±30 ±60 mA VCC = 3.6 V, VO = 0 V VCC = 5.5 V, VO = 0 V rO Output resistance VCC, V+, and V– = 0 V, VO = ±2 V 300 Ω 10M Receiver VOH High-level output voltage IOH = –1 mA VOL Low-level output voltage IOL = 1.6 mA VIT+ Positive-going input VCC = 3.3 V 1.5 2.4 VCC = 5 V 2.0 2.4 threshold voltage VIT– Negative-going input threshold voltage Vhys Input hysteresis (VIT+ – VIT–) ri Input resistance VCC – 0.6 VCC – 0.1 V 0.4 V V VCC = 3.3 V 0.6 1.1 VCC = 5 V 0.8 1.5 V 0.4 VI = ±3 V to ±25 V 3 5 V kΩ 7 Note 2：Short-circuit durations should be controlled to prevent exceeding the device absolute power dissipation ratings, and not more than one output should be shorted at a time. www.belling.com.cn Page4 V1.0 BL13232E Switching Characteristics (Test conditions: C1–C4=0.1μF at VCC=3.3V±0.3V; C1=0.047μF, C2–C4=0.33μF at VCC=5V±0.5V, TA = -40~125℃, unless otherwise noted. Typical values are at TA = +25°C.) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT RL = 3 kΩ, CL = 1000 pF, Maximum data rate 250 kbps One DOUT switching RL = 3 kΩ to 7 kΩ, CL = 150 pF to 2500 pF, tsk(p) SR(tr) Driver pulse skew 100 see Figure 1 ns Driver slew rate, transition RL = 3 kΩ to 7 kΩ, CL = 150 pF to 1000 pF 6 30 region VCC = 3.3 V CL = 150 pF to 2500 pF 4 30 V/μs Receiver propagation delay tPLH time, low- to high-level output CL = 150 pF Receiver propagation delay tPHL tsk(p) 150 ns 150 ns 60 ns see Figure 2 time, high- to low-level output Receiver pulse skew Note 3：Pulse skew is defined as |tPLH – tPHL| of each channel of the same device. Figure 1. Driver Pulse Skew Figure 2. Receiver Propagation Delay Times www.belling.com.cn Page5 V1.0 BL13232E Typical Application Figure 3 Typical application circuit Nonpolorized ceramic capacitors are acceptable. If polarized tantalum or electrolytic capacitors are used, they should be connected as shown. Figure 3. Typical Operating Circuit Table 1. VCC vs Capacitor Values www.belling.com.cn VCC C1 C2, C3, C4 3.3 V ±0.3 V 0.1 µF 0.1 µF 5 V ±0.5 V 0.047 µF 0.33 µF 3 V to 5.5 V 0.1 µF 0.47 µF Page6 V1.0 BL13232E Package Outline Dimensions SOP16 TSSOP16 www.belling.com.cn Page7 V1.0