TL7702A

Part: TL7700A Series — STMicroelectronics

Type: Supply Voltage Supervisor

Description: Monolithic supply voltage supervisor ICs designed as reset controllers for microcomputer and microprocessor systems, featuring a wide 3V to 18V supply voltage range, precision voltage sensing, and externally adjustable reset pulse width.

Operating Conditions:

• Supply voltage: 3.6–18 V
• Operating temperature: -25 to 85 °C (TL77XXAI), 0 to 70 °C (TL77XXAC)
• High-level Input Voltage at RESIN: 2 V
• Low-level Input Voltage at RESIN: 0.6 V

Absolute Maximum Ratings:

• Max supply voltage: 20 V
• Max continuous current: 30 mA (output)
• Max storage temperature: -65 to 150 °C

Key Specs:

• Reference Voltage (Vref): 2.48 V (min), 2.53 V (typ), 2.58 V (max) at Tamb = 25 °C
• Threshold Voltage at SENSE Input (TL7702A): 2.45 V (min), 2.53 V (typ), 2.58 V (max) for Vs = 3.6V to 18V
• Threshold Voltage at SENSE Input (TL7705A): 4.45 V (min), 4.55 V (typ), 4.6 V (max) for Vs = 3.6V to 18V
• Hysteresis at SENSE Input (TL7702A): 10 mV (typ)
• Supply Current (IS): 1.8 mA (typ), 3.3 mA (max)
• High-level Output Voltage (VOH): Vs - 1.5 V (min) at IOH = -16mA
• Low-Level Output Voltage (VOL): 0.4 V (typ) at IOL = 16mA
• Pulse Width at Output (tpo): 0.65 ms (min), 1.3 ms (typ), 2.6 ms (max) for CT = 0.1 μF

Features:

• Power-on reset generator
• Wide supply voltage range
• Precision voltage sensor
• Temperature-compensated voltage reference
• True and complement reset outputs
• Externally adjustable pulse width
• Automatic reset generation after voltage drop

Applications:

• Reset controllers in microcomputer and microprocessor systems

Package:

• Minidip
• S08

Tamb = -25 to 85 o C (TLXXAI), Tamb = 0 to 70 o C (TL77XXAC)

Symbol	Parameter	Parameter	Test Conditions (1)	Min.	Typ.	Max.	Unit
V OH	High-level Output Voltage at RESET	High-level Output Voltage at RESET	I OH = -16mA	V s - 1.5			V
V OL	Low-Level Output Voltage at RESET	Low-Level Output Voltage at RESET	I OL = 16mA		0.4		V
V ref	Reference Voltage	Reference Voltage	T amb = 25 o C	2.48	2.53	2.58	V
V T	Threshold Voltage at SENSE Input	TL7702A TL7705A	V s = 3.6V to 18V T amb = 25 o C	2.48 4.5	2.53 4.55	2.58 4.6	V
V T	Threshold Voltage at SENSE Inpu	TL7702A TL7705A	V s = 3.6V to 18V	2.45 4.45	2.53 4.55	2.58 4.6	V
V T+ , V T-	Hysteresis (2) at SENSE Input	TL7702A TL7705A	V s = 3.6V to 18V T amb = 25 o C	Product(s)	10 15		mV
I I	Input Current at RESIN Input	Input Current at RESIN Input	V i = 2.4V to V S V i = 0.4V		20 -100		m A
I I	Input Current at SENSE Input	TL7702A	V ref < V i < V s - 1.5V		0.5	2	m A
I OH	High-level Output Current at RESET	High-level Output Current at RESET	V O = 18V		50		m A
I OL	Low-level Output Current at RESET	Low-level Output Current at RESET	V O = 0V		-50		m A
I S	Supply Current	Supply Current	All Inputs and out. open		1.8	3.3	mA

Symbol	Parameter	Test Conditions	Min.	Typ.	Max.	Unit
t pi	Pulse Width at SENSE Input	- - - V ih = V ityp +0.04 x V i V iL = V ityp -0.04 x V i	0.9			m s
t pi	Pulse Width at RESIN Input		0.4			m s
t po	Pulse Width at Output	C T = 0.1 m F	0.65	1.3	2.6	ms
t pdHL	Propagation Delay Time from RESIN to RESET	C L = 100pF, V s = 5V, R L = 4.7k W			1	m s
t r/f	Rise/Falltime at RESET and RESET	C L = 10pF, V s = 5V, R L = 4.7k W			1	m s

Obsolete Product(s) - Obsolete Product(s) Notes : 1. All characteristics are measured with C = 0.1 m F from Pin 1 to GND, and with C = 0.1 m F from Pin 3 to GND. 2. Hysteresis is the difference between the positive going input threshold voltage. VT+, and the negative going input threshold voltage, VT-. SWITCHING CHARACTERISTICS Obsolete Product(s) - Obsolete Product(s)

Figure 1 : Reset Controller for m P

Obsolete Product(s) - Obsolete Product(s)

Obsolete Product(s) - Obsolete Product(s)

DIM.	mm	mm	mm	inch	inch	inch
DIM.	MIN.	TYP.	MAX.	MIN.	TYP.	MAX.
A			1.75			0.069
a1	0.1		0.25	0.004		0.010
a2			1.65			0.065
a3	0.65		0.85	0.026		0.033
b	0.35		0.48	0.014		0.019
b1	0.19		0.25	0.007		0.010
C	0.25		0.5	0.010		0.020
c1	45 (typ.)	45 (typ.)	45 (typ.)	45 (typ.)	45 (typ.)	45 (typ.)
D (1)	4.8		5.0	0.189		0.197
E	5.8		6.2	0.228		0.244
e		1.27			0.050
e3		3.81			0.150
F (1)	3.8		4.0	0.15		0.157
L	0.4		1.27	0.016		0.050
M			0.6			0.024
S	8 (max.)	8 (max.)	8 (max.)	8 (max.)	8 (max.)	8 (max.)

Obsolete Product(s) - Obsolete Product(s) (1) D and F do not include mold flash or protrusions. Mold flash or potrusions shall not exceed 0.15mm (.006inch). Obsolete Product(s) - Obsolete Product(s)