74LV4799DB,118 NXP Semiconductors, 74LV4799DB,118 Datasheet - Page 2

• Manufacturer Part Number: 74LV4799DB,118
• Description: IC TIMER NICD/NIMH CHRGR 16SSOP
• Manufacturer: NXP Semiconductors
• Type: Timer Controlr
• Series: 74LVr

Specifications of 74LV4799DB,118

• Package / Case: 16-SSOP
• Frequency: 100kHz
• Voltage - Supply: 0.9 V ~ 6 V
• Current - Supply: 36µA
• Operating Temperature: 0°C ~ 70°C
• Supply Voltage (max): 6 V
• Supply Voltage (min): 0.9 V
• Maximum Operating Temperature: + 70 C
• Minimum Operating Temperature: 0 C
• Mounting Style: SMD/SMT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Count: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant
• Other names: 74LV4799DB-T; 74LV4799DB-T; 935175040118

Philips Semiconductors
FEATURES
APPLICATIONS
QUICK REFERENCE DATA
GND = 0V; T
ORDERING INFORMATION
V
I
Df
16-Pin Plastic DIL
16-Pin Plastic SO
16-Pin Plastic SSOP Type II
16-Pin Plastic TSSOP Type I
1998 Apr 20
CC
Wide supply voltage range of 0.9 V to 6 V allows 1 to 4-cell
applications
10 V allowed on special inputs
Supports virtually all battery chargers, including switched-mode
power supplies
On-chip timer calculates the actual capacity of the battery by
measuring the charger time, discharge time and self-discharge time
Automatic switch-over to trickle charge after completion of the
charge time
Can be adjusted for use with different types of batteries:
Battery status indication included:
LED mode select allows two different methods of indication
Automatic power-ON reset
Low-power consumption
Requires only a few peripheral components
Very accurate on-chip oscillator
Scan test facilities included
I
Time-controlled NiCd and NiMH low-current chargers
Domestic appliances such as rechargeable battery shavers,
electric toothbrushes etc.
Portable equipment such as notebook PCs, laptop PCs, camera
flash units etc.
Personal communications like cordless telephones, personal
mobile radios, pagers, etc.
SYMBOL
CC
Timer for NiCd and NiMH chargers
CC
– Charge time: 4 to 16 hours
– Discharge time: 15 minutes to 4.7 hours
– Self-discharge time: 50 to 100 days
– LED output for charging/full indication
– MOLLI output for battery-low indication
category: non-standard.
amb
PACKAGES
DC supply voltage
Operating supply current
Oscillator frequency tolerance
= 25 C
PARAMETER
TEMPERATURE RANGE
0 C to +70 C
0 C to +70 C
0 C to +70 C
0 C to +70 C
V
R
C
V
CC
s
1
CC
= 100 kW;
= 220nF
= 3.3V; self-discharge mode;
= 1 to 6 V
CONDITIONS
OUTSIDE NORTH AMERICA
2
DESCRIPTION
The 74LV4799 is a low-voltage Si-gate CMOS control IC for battery
management. It consists of:
Battery management with the 74LV4799 is based on the principle of
time measurement. It measures the charge time, discharge time and
self-discharge time by means of a very accurate on-chip oscillator, a
divider and an up/down counter.
PIN CONFIGURATION
74LV4799 PW
74LV4799 DB
74LV4799 N
74LV4799 D
17-stage divider
10-stage up/down counter
Control logic
Integrated precision oscillator (using external timing components)
Automatic power-ON reset
Scan test facilities
Battery charging/full indication output (LED)
Battery-low indication output (MOLLI)
Open-drain-N outputs for driving the load transistor
MOLLI/SCO
TYPICAL
PWRS
GND
LED
SEL
0.9
EN
EN
V
in
2
3
4
5
6
7
8
1
NORTH AMERICA
74LV4799PW DH
74LV4799 DB
74LV4799 N
74LV4799 D
TYPICAL
36
SV01643
16
15
14
12
11
10
13
9
TYPICAL
Product specification
V
SCI
SCAN
I
R
R
R
DIS
OSC
74LV4799
CC
S
D
C
6.0
7
853-2058 19258
SOT109-1
SOT338-1
SOT403-1
SOT38-4
CODE
UNIT
%
V
A