TA8007F TOSHIBA | Alldatasheet
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TOSHIBA BIPOLAR LINEAR INTEGRATED CIRCUIT SILICON MONOLITHIC 5V VOLTAGE REGULATOR WITH WATCHDOG TIMER The TA8007F is an IC specially designed for microcomputer systems. It incorporates a highly accurate constant-voltage power supply (5+0.15V) and various system reset functions. For system reset, it monitors the output voltage of Vppqgx92% and has a watchdog timer which can self-diagnose the microcomputer system so IN A that program runaway can be prevented. It also has Et ee other monitor functions for checking the operation of wer the microcomputer system. Since its standby current is as small as 1.2mA (Max.), it can be connected directly to an automotive battery. SSOP16-P-225-1.00A Weight : 0.14g (Typ.)
FEATURES
@ Accurate output 2 5£0.15V @ Low standby current : 1.2mA (Max.) ©@ Power-on reset timer and watchdog timer incorporated, as well as reset and monitor outputs @ Wide operating voltage range : 35V (Max.) @ Wide operating temperature range : from -40 to 105°C @ Flat package SSOP 16 pin. 961001EBA1 @ TOSHIBA is continually working to improve the quality and the reliability of its products. Nevertheless, semiconductor devices in general can malfunction or fail due to their inherent electrical sensitivity and vulnerability to physical stress. It is the responsibility of the buyer, when utilizing TOSHIBA products, to observe standards of safety, and to avoid situations in which a malfunction or failure of a TOSHIBA product could cause loss of human life, bodily injury or damage to property. In developing your designs, please ensure that TOSHIBA products are used within specified operating ranges as set forth in the most recent products specifications. Also, please keep in mind the precautions and conditions set forth in the TOSHIBA Semiconductor Reliability Handbook. Sire products described in this document are subject to foreign exchange and foreign trade control laws. The information contained herein is presented only as a guide for the applications of our products. No responsibility is assumed by TOSHIBA CORPORATION for any infringements of intellectual Property or other rights of the third parties which may result from its use. No license is granted by implication or otherwise under any intellectual property or other rights of TOSHIBA CORPORATION or others. @ The information contained herein is subject to change without notice. 1998-02-10 1/7
BLOCK DIAGRAM AND PIN LAYOUT NC NC cK Te ‘RESET M NC NC are : (ani qt Vee Tr | NC NC BIAS our comp Vee NC GND 1998-02-10 2/7
[owe [wo] CONS [7.2 [NC [Not connected ——SOSOSOSOSSCCCCCCCTCCCCC Power supply pin for the start-up circuit which activates the overvoltage | > | ous lector erat an the SV ponerse | Connected to the base of an external PNP transistor so that the output voltage is stabilized. Power supply design suitable for particular load OUT capacities is thus possible. Since the recommended maximum IgytT is 5mA, an output current of 300mA is assured if the external transistor has an hee of 60 or more. [5 | COMP [Phase compensation pin for output stabilization. SSSCS—*S Vv Power supply pin for the power supply section and reset timers. The output cc voltage Vpgq can also be detected at this pin. [8 | Guo [Grounded SSCS [3,10 | Nc [Not connected. SSCS NPN transistor open-collector output " This signal is low while pulses come from pin 12 (RESET output) ; it becomes high when pulses no longer come from pin 12. This function can be used for monitoring the operation of the microcomputer system. NPN transistor open-collector output. (1) The signal goes low when the output voltage drops below 92%. — (2) The pin supplies a reset signal determined by the CR combination 12 RESET . connected to the TC pin. (3) The pin supplies reset pulses intermittently if no clock is given to the CK pin. Vcc, and the capacitor Ct leads to GND. Pt | eee poweronreet mer Pe NEC NRICR OS | only as a power-on reset timer. [15,16 [WC [Not connected. SSSSCSCSCSCSSCCCCCSCSCSC 1998-02-10 3/7
vin | UU ° vres VREGx92% Ww ec Sp Sve «80% —S — AV Maen” Nn N Vaal Te REGX ° 40% La Le aa MAXIMUM RATINGS (Ta = 25°C) CHARACTERISTIC SYMBOL J opm | RATING VIN BIAS 60 (15) Input Voltage Vin2 =5=Vec_| [tours | our | 10 Output Current lout2 RESET, M mA Vout1 60 (1s) Output Voltage Vourz | RESET . [Power Disipation [Pp | — | 600 mw | Operating Temperature| Topr | — | -40~105 Storage Temperature | Tstg | — | -55~150 [Lead Temperature-time | Tsoi | = — _|_260 (105) 1998-02-10 4/7
ELECTRICAL CHARACTERISTICS (Vin = 6~18V, ILQAD = 10MA, Ta = -40~105°C) TEST CHARACTERISTIC SYMBOL J ew |e TEST CONDITION wn. |v. | ax UNIT CUIT Output Voltage Vag | vee |—[— | 4 [so [sm] v | Line Regulation Vune | Vec | — [Vin=5.5~35v_ | — | or] 05] % | toad Regulation | Vioap | Vcc__| — |hoap=1~50ma] — | 01] 05] % | Temperature Coeffcent | — [vec [=| — | — | 001] — [xe Output Voltage Reser, M| — |igisima | — | — | os] v | Output Leakage Current ILeaK _| RESET, M| — |[Vour=10V (— | — |] 5[ pA] [input current Ti | tC | = [Vin=0~3.5V | -3 | — [3] ZA | VREG Threshold Voltage TC VREG v =| = | = [ets] — | [input Current Ti TK — [Min=5v | = [0a | 03 | ma | Input Voltage CK Vv vV Vv VI Standby Current [ist | Vec__| — [Vin=14v [ — | 06 | 12] ma | Overvoltage Detection | Vsp | Blas, |— [| — | — | aot — | v | wmcnsnne | wo [weer [=| _[eerlee [ee — ; ao 13x [16x [1.9 ao 7 1 Clock Pulse Width A es TOOT GB-OS
EXAMPLE OF APPLICATION CIRCUIT TA8007F BIAS OUT COMP Vcc GND M__ RESET TC cK LT GE Gl BI Ey La] ott g mabopre = = . a - i? os sat oat Ss — cRs ORS M RSET oS GND O © GND (*) Cautions for Wiring 1. Cy and C2 are for absorbing disturbance, noise, etc. Connect them as close to the IC as possible. 2. C3 is for phase compensation. Also, connect C3 close to the IC. 1998-02-10 6/7
SSOP16-P-225-1.00A Unit : mm 16 9 ' a ay 3 al = 3| ¢ & o] ws] a vt] 6 x F 1 8 O.6TYP 0.4+0.1 8.7MAX 8.2+0.2 g Nn ba} a. if OT & rt ry ir So [rey bia eas 0.525+0.2 Weight : 0.14g (Typ.) 1998-02-10 7/7