PT8A2766A PERICOM | Alldatasheet

Document overview

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Technical content

Features

z Operation Range: 1.6~5.5V z 20µA Maximum Standby Supply Current z Thermal and Short-Circuit Protection z 150mΩ High-side MOSFET z Filter for key input z 1A current driver z Protection for over temperature z Protection for over current z Battery under-voltage indicate z Battery over discharge protect z Lock function z Low cost 8-pin SOIC and 5-pin SOT23 package

Description

The PT8A2766x is a mixed signal CMOS LSI chip designed as a simple power switch circuit for shaver, toothbrush and other electrical devices. It can drive motor directly and detect battery lacking. ON/OFF button control work status, and LED1, LED2 indicates work status. It has lock function.

Applications

PT8A2766A/B/C/D/E/F/G/H PT8A2766I/J Pin Description PT8A2766A/B/C/D/E/F/G/H Pin Name Pin No. Type Descriptions OUT 1 O Output to drive motor ENB 2 I Enable input, active low. LED1 3 O LED1 indicator output. LED2 4 O LED2 indicator output. VCC 5 Power Power supply. OCP 6 I Over current protection input ON/OFF 7 I Key input, active low; this pin can also adjust the protection voltage of battery discharge. GND 8 Power Ground. PT8A2766I/J Pin Name Pin No. Type Descriptions ENB 1 I Enable input, active low. ON/OFF 2 I Key input, active low; this pin can also adjust the protection voltage of battery discharge. OUT 3 O Output to drive motor GND 4 Power Ground. VCC 5 Power Power supply.

12-07-0006 PT0376-2 07/06/12 PT8A2766x DC Motor Controller Block Diagram Maximum Ratings Recommended operation conditions Symbol Parameter Min Typ Max Unit VCC Operating Voltage 1.6 2.4 5.5 V VIH “H” Input Voltage 0.7V CC - - V VIL “L” Input Voltage - - 0.3 VCC V TA Operating temperature 0 25 85 °C Note: Stresses greater than those listed under MAXIMUM RATINGS may cause perm anent damage to the device. This is a stress rating only and functional operation of the device at these or any other condi- tions above those indicated in the operational sec- tions of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect reliability.

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Electrical Characteristics

(TA = 0 ~ 85ºC, unless otherwise noted) Symbol Parameter Test Conditions Min Typ Max Unit VCC Conditions ICCQ Standby current 2.4V Floating - - 20. µA IOUT OUT output current 2.4V Taul=50mS -5.0 - - A 2.4V V OUT=0.15V -1.0 - - A VT1 Battery lacking - No pull low resistor in Pin: ON/OFF 2.1 2.2 2.3 V VT2 Battery over discharge - No pull low resistor in Pin: ON/OFF. Auto off 1.8 1.9 2.0 V VT3 Over Current Protect 2.4V Pin: OCP 2.22 2.25 2.28 V VT4 ON/OFF Trigger Voltage Pin: ON/OFF 0.3 0.8 1.1 V T1 Short click button - Pin: ON/OFF 50 70 90 mS T2 Long click button - Pin: ON/OFF 2.4 3.0 3.6 S T3 Over current protection - V OCP<VT3 2.0 3.0 4.0 S T4 Over temperature protection - - 130 - - °C Rth(j-a) Junction to ambient (DC) SOIC-8 package - 42 - °C/ W SOT23-5 package - 86 - Functional Description z ON/OFF Button The button will be toggled ON or OFF state by pushing it less than 3 seconds, and toggling lock or unlock state by pushing it over 3 seconds. Description is as below: z LED Indicator LED1, LED2 work status is as below: Work Status Mode1 Mode2 LED1 LED2 LED1 LED2 Off Off Off Off Off On Normal On Off On Off Under voltage Off On Flash1* Off Lock Normal Flash2* Off Off Flash2* Under voltage Off Flash2* Off Flash2* Note: 1. Flash1: LED flashes by 1.5Hz; 2. Flash2: LED flashes by 1.5Hz, but only 5 times.

12-07-0006 PT0376-2 07/06/12 PT8A2766x DC Motor Controller z Reset After power on, the chip will be reset by internal POR circuit. LED1 and LED2 pin will output low level and OUT pin will output high-impedance state. z Over Current Protect When Output current from pin OUT is over spec, the IC will turn to OFF state. z Over Temperature Protect When IC junction temperature is over spec, pin OUT will turn to high-impedance state and the system is still in ON State. z Battery Over Discharge Protect During on state, the IC will auto off when the battery voltage is under spec (VT2). If the process repeats three times continuously, the IC will be always in off state and ON/OFF button will be locked unless reset pin ENB. z Under Voltage Protection During on state, the IC will turn to under voltage mode when the battery voltage is under spec (VT1).

12-07-0006 PT0376-2 07/06/12 PT8A2766x DC Motor Controller Application Circuit PT8A2766A/B/C/D/E/F/G/H 20K/1W 300K 1N4007 C110n400v B 1 C 2E3 2N5551 10n T11 : 6.57 1N4148 5.6K 0.1uA MOTOR 0.1u AC220V 0.1u 1N4148 R4 2.2K R5 2.2K AC L AC N GND 5.6K LED1 1N4148 R10 10K C6 0.1u 0.1 R8 0.1 NC OUT1 ENB2 LED13 LED24 VCC 5 OCP 6 ON/OFF 7 GND 8 PT8A2766x LED2 LED3 BT 2.4V R11 NC PT8A2766I/J 20K/1W R2 300K 1N4007 10n400V B 1 C 2E3 2N5551 10n 1 : 6.57 1N4148 5.6K BT 2.4V 0.1u A MOTOR 0.1u AC220V 0.1u 1N4148 AC L AC N GND 5.6K LED1 1N4148 NC OUT3 ENB1 VCC 5 ON/OFF2 GND 4 PT8A2766x NC

12-07-0006 PT0376-2 07/06/12 PT8A2766x DC Motor Controller Mechanical Information WE (SOIC-8) Min Max A 1.350 1.750 A1 0.100 0.250 A2 1.350 1.550 b 0.330 0.510 c 0.170 0.250 D 4.700 5.100 E 3.800 4.000 E1 5.800 6.200 e L 0.400 1.270 θ 0° 8° Symbol Dimens ions In Millimeters

1.27 BSC

Note: 1) Controlling dimensions in millimeters. 2) Ref: JEDEC MS-012E/AA

12-07-0006 PT0376-2 07/06/12 PT8A2766x DC Motor Controller TAE (SOT23-5L) SYMBOL MIN MAX A 1.05 1.25 A1 0.00 0.10 A2 1.05 1.15 b 0.30 0.50 c 0.10 0.20 D 2.82 3.02 E 1.50 1.70 E1 2.65 2.95 e e1 1.80 2.00 L 0.30 0.60 Ȭ ¢ 8° PKG. DIMENSIONS(MM) 0.95BSC Note: 1) Controlling dimensions in millimeters. 2) Ref: JEDEC MO-178C/AA

12-07-0006 PT0376-2 07/06/12 PT8A2766x DC Motor Controller

Ordering Information

Part No. Package Code Package PT8A2766xWE W Lead free and Green 8-Pin SOIC PT8A2766ITAE TA Lead free and Green 5-Pin SOT23 PT8A2766JTAE TA Lead free and Green 5-Pin SOT23 Note: z “x” shows A~H with different function. See Function Comparison Table. z E = Pb-free and Green z Adding X Suffix= Tape/Reel Function Comparison Table Part No Disable when chargi ng Key lock LED flash for battery low LED Mode Package PT8A2766A Y N N 1 SOIC-8 PT8A2766B* Y N Y 2 SOIC-8 PT8A2766C* Y Y N 1 SOIC-8 PT8A2766D Y Y Y 2 SOIC-8 PT8A2766E N N N 1 SOIC-8 PT8A2766F* N N Y 2 SOIC-8 PT8A2766G* N Y N 1 SOIC-8 PT8A2766H* N Y Y 2 SOIC-8 PT8A2766I Y N N 1 SOT23-5 PT8A2766J N N N 1 SOT23-5 Note:* Contact Pericom for availability. Pericom Semiconductor Corporation y 1-800-435-2336 y www.pericom.com Pericom reserves the right to make changes to its products or specifications at any time, without notice, in order to improve design or performance and to supply the best possible product. Pericom does not assume any responsibility for use of any circuitry described other than the circuitry embodied in Pericom product. The company makes no representations that circuitry described herein is free from patent infringement or other rights, of Pericom.