BD6757KN_09 Datasheet, PDF (1/16 Pages) Rohm – 7ch System Lens Drivers for Digital Still Cameras / Single-lens Reflex Cameras

System Lens Driver Series for Digital Still Cameras / Single-lens Reflex Cameras
7ch System Lens Drivers for
Digital Still Cameras / Single-lens Reflex Cameras
BD6757KN, BD6889GU
No.09014EAT04
●Description
BD6757KN and BD6889GU motor drivers provide 6 Full-ON Drive H-bridge channels and 1 Linear Constant-Current Drive
H-bridge channel. Stepping motors can be used for the auto focus, zoom, and iris, making it possible to configure a
sophisticated, high precision lens drive system. ROHM’s motor drivers are both compact, multifunctional, and enable
advanced features such as lens barrier and anti shock.
●Features
1) Subminiature grid array package: 5.0  5.0  1.2mm³ (BD6889GU)
2) DMOS output allowing a range power supply: 2.0V to 8.0V (BD6757KN)
3) Low ON-Resistance Power MOS output:
Full-ON Drive block with 1.3Ω Typ. and Linear Constant-Current Drive block with 0.9Ω Typ. (BD6757KN, BD6889GU)
4) Built-in two digital NPN transistor circuits for photo-interrupter waveform shaping:
Input-dividing type with output pull-up resistance (BD6757KN)
5) Built-in four digital NPN transistor circuits for photo-interrupter waveform shaping:
Input-dividing type with output pull-up resistance (BD6889GU)
6) Built-in four digital PNP transistor circuits for photo-interrupter waveform shaping:
Input-dividing type with output pull-down resistance (BD6889GU)
7) Built-in voltage-regulator circuit for photo-interrupter (BD6889GU)
8) Built-in two-step output current setting switch for the Linear Constant-Current Drive block (BD6757KN)
9) 0.9V±2% high-precision reference voltage output
10) Constant-Current Drive block features phase compensation capacitor-free design
11) Built-in ±3% high-precision Linear Constant-Current Driver
12) Built-in charge pump circuit for the DMOS gate voltage drive(BD6757KN)
13) UVLO (Under Voltage Lockout Protection) function
14) Built-in TSD (Thermal Shut Down) circuit
15) Standby current consumption: 0μA (Typ.)
●Absolute Maximum Ratings
Parameter
Symbol
Limit
BD6757KN
BD6889GU
Power supply voltage
VCC
-0.5 to +7.0
-0.5 to +7.0
Motor power supply voltage
VM
-0.5 to +10.0
-0.5 to +7.0
Charge pump voltage
VG
15.0
None
Control input voltage
Power dissipation
VIN
-0.5 to VCC+0.5 -0.5 to VCC+0.5
Pd
950^※1
980^※2
Operating temperature range
Topr
-25 to +75
-25 to +85
Junction temperature
Tjmax
+150
+150
Storage temperature range
H-bridge output current
Tstg
-55 to +150
-55 to +150
Iout
-800 to +800^※3
-800 to +800^※3
※1 Reduced by 7.6mW/°C over 25°C, when mounted on a glass epoxy board (70mm  70mm  1.6mm).
※2 Reduced by 7.84mW/°C over 25°C, when mounted on a glass epoxy board (70mm  70mm  1.6mm).
※3 Must not exceed Pd, ASO, or Tjmax of 150°C.
Unit
V
V
V
V
mW
°C
°C
°C
mA/ch
●Operating Conditions (Ta=-25 to +75°C(BD6757KN), -25 to +85°C(BD6889GU))
Parameter
Symbol
Limit
BD6757KN
BD6889GU
Power supply voltage
VCC
2.5 to 5.5
2.5 to 5.7
Motor power supply voltage
VM
2.5 to 8.0
2.5 to 5.7
Control input voltage
H-bridge output current
VIN
0 to VCC
0 to VCC
Iout
-500 to +500^※4
-500 to +500^※4
※4 Must not exceed Pd or ASO.
Unit
V
V
V
mA/ch
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2009.06 - Rev.A